src/render/opengles/SDL_render_gles.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 17 Feb 2011 02:23:48 -0800
changeset 5333 5d3a2cd4e8c9
parent 5330 874c671c8043
child 5355 cc2215cda170
permissions -rw-r--r--
Implemented OpenGL ES RenderClear()
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
     1
/*
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
     2
    SDL - Simple DirectMedia Layer
5262
b530ef003506 Happy 2011! :)
Sam Lantinga <slouken@libsdl.org>
parents: 5249
diff changeset
     3
    Copyright (C) 1997-2011 Sam Lantinga
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
     4
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
     5
    This library is free software; you can redistribute it and/or
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
     6
    modify it under the terms of the GNU Lesser General Public
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
     7
    License as published by the Free Software Foundation; either
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
     8
    version 2.1 of the License, or (at your option) any later version.
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
     9
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    10
    This library is distributed in the hope that it will be useful,
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    13
    Lesser General Public License for more details.
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    14
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    15
    You should have received a copy of the GNU Lesser General Public
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    16
    License along with this library; if not, write to the Free Software
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    17
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    18
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    19
    Sam Lantinga
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    20
    slouken@libsdl.org
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    21
*/
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    22
#include "SDL_config.h"
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    23
5226
710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render
Sam Lantinga <slouken@libsdl.org>
parents: 5224
diff changeset
    24
#if SDL_VIDEO_RENDER_OGL_ES && !SDL_RENDER_DISABLED
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    25
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    26
#include "SDL_opengles.h"
5154
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library.
Sam Lantinga <slouken@libsdl.org>
parents: 5150
diff changeset
    27
#include "../SDL_sysrender.h"
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    28
5150
1435f8a6425c Nobody is currently maintaining the QNX code, so removing it for now.
Sam Lantinga <slouken@libsdl.org>
parents: 5149
diff changeset
    29
#if defined(SDL_VIDEO_DRIVER_PANDORA)
3165
7168651d5706 QNX quirk has been added, QNX OpenGL ES implementation is broken regarding support of textures with packed pixel formats.
Mike Gorchak <lestat@i.com.ua>
parents: 3163
diff changeset
    30
7168651d5706 QNX quirk has been added, QNX OpenGL ES implementation is broken regarding support of textures with packed pixel formats.
Mike Gorchak <lestat@i.com.ua>
parents: 3163
diff changeset
    31
/* Empty function stub to get OpenGL ES 1.x support without  */
7168651d5706 QNX quirk has been added, QNX OpenGL ES implementation is broken regarding support of textures with packed pixel formats.
Mike Gorchak <lestat@i.com.ua>
parents: 3163
diff changeset
    32
/* OpenGL ES extension GL_OES_draw_texture supported         */
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
    33
GL_API void GL_APIENTRY
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
    34
glDrawTexiOES(GLint x, GLint y, GLint z, GLint width, GLint height)
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2964
diff changeset
    35
{
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
    36
    return;
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2964
diff changeset
    37
}
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2964
diff changeset
    38
5150
1435f8a6425c Nobody is currently maintaining the QNX code, so removing it for now.
Sam Lantinga <slouken@libsdl.org>
parents: 5149
diff changeset
    39
#endif /* PANDORA */
3161
494559cc723b OpenPandora support added by David Carré
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
    40
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    41
/* OpenGL ES 1.1 renderer implementation, based on the OpenGL renderer */
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    42
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    43
static const float inv255f = 1.0f / 255.0f;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    44
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    45
static SDL_Renderer *GLES_CreateRenderer(SDL_Window * window, Uint32 flags);
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
    46
static void GLES_WindowEvent(SDL_Renderer * renderer,
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
    47
                             const SDL_WindowEvent *event);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    48
static int GLES_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    49
static int GLES_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    50
                              const SDL_Rect * rect, const void *pixels,
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    51
                              int pitch);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    52
static int GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
5156
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer.
Sam Lantinga <slouken@libsdl.org>
parents: 5154
diff changeset
    53
                            const SDL_Rect * rect, void **pixels, int *pitch);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    54
static void GLES_UnlockTexture(SDL_Renderer * renderer,
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    55
                               SDL_Texture * texture);
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
    56
static int GLES_UpdateViewport(SDL_Renderer * renderer);
5333
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
    57
static int GLES_RenderClear(SDL_Renderer * renderer);
3641
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
    58
static int GLES_RenderDrawPoints(SDL_Renderer * renderer,
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
    59
                                 const SDL_Point * points, int count);
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
    60
static int GLES_RenderDrawLines(SDL_Renderer * renderer,
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
    61
                                const SDL_Point * points, int count);
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
    62
static int GLES_RenderFillRects(SDL_Renderer * renderer,
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
    63
                                const SDL_Rect * rects, int count);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    64
static int GLES_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    65
                           const SDL_Rect * srcrect,
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    66
                           const SDL_Rect * dstrect);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    67
static void GLES_RenderPresent(SDL_Renderer * renderer);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    68
static void GLES_DestroyTexture(SDL_Renderer * renderer,
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    69
                                SDL_Texture * texture);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    70
static void GLES_DestroyRenderer(SDL_Renderer * renderer);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    71
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    72
5201
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents: 5195
diff changeset
    73
SDL_RenderDriver GLES_RenderDriver = {
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    74
    GLES_CreateRenderer,
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    75
    {
5203
25ffd4e5255c Minor consistency cleanup and documentation link update.
Sam Lantinga <slouken@libsdl.org>
parents: 5201
diff changeset
    76
     "opengles",
25ffd4e5255c Minor consistency cleanup and documentation link update.
Sam Lantinga <slouken@libsdl.org>
parents: 5201
diff changeset
    77
     (SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),
5156
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer.
Sam Lantinga <slouken@libsdl.org>
parents: 5154
diff changeset
    78
     1,
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer.
Sam Lantinga <slouken@libsdl.org>
parents: 5154
diff changeset
    79
     {SDL_PIXELFORMAT_ABGR8888},
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    80
     0,
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    81
     0}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    82
};
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    83
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    84
typedef struct
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    85
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    86
    SDL_GLContext context;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    87
    int blendMode;
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    88
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    89
    SDL_bool useDrawTexture;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
    90
    SDL_bool GL_OES_draw_texture_supported;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    91
} GLES_RenderData;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    92
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    93
typedef struct
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    94
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    95
    GLuint texture;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    96
    GLenum type;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    97
    GLfloat texw;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    98
    GLfloat texh;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
    99
    GLenum format;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   100
    GLenum formattype;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   101
    void *pixels;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   102
    int pitch;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   103
} GLES_TextureData;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   104
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   105
static void
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   106
GLES_SetError(const char *prefix, GLenum result)
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   107
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   108
    const char *error;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   109
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   110
    switch (result) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   111
    case GL_NO_ERROR:
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   112
        error = "GL_NO_ERROR";
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   113
        break;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   114
    case GL_INVALID_ENUM:
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   115
        error = "GL_INVALID_ENUM";
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   116
        break;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   117
    case GL_INVALID_VALUE:
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   118
        error = "GL_INVALID_VALUE";
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   119
        break;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   120
    case GL_INVALID_OPERATION:
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   121
        error = "GL_INVALID_OPERATION";
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   122
        break;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   123
    case GL_STACK_OVERFLOW:
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   124
        error = "GL_STACK_OVERFLOW";
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   125
        break;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   126
    case GL_STACK_UNDERFLOW:
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   127
        error = "GL_STACK_UNDERFLOW";
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   128
        break;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   129
    case GL_OUT_OF_MEMORY:
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   130
        error = "GL_OUT_OF_MEMORY";
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   131
        break;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   132
    default:
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   133
        error = "UNKNOWN";
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   134
        break;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   135
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   136
    SDL_SetError("%s: %s", prefix, error);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   137
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   138
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   139
static SDL_GLContext SDL_CurrentContext = NULL;
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   140
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   141
static int
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   142
GLES_ActivateRenderer(SDL_Renderer * renderer)
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   143
{
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   144
    GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   145
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   146
    if (SDL_CurrentContext != data->context) {
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   147
        if (SDL_GL_MakeCurrent(renderer->window, data->context) < 0) {
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   148
            return -1;
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   149
        }
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   150
        SDL_CurrentContext = data->context;
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   151
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   152
        GLES_UpdateViewport(renderer);
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   153
    }
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   154
    return 0;
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   155
}
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   156
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   157
SDL_Renderer *
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   158
GLES_CreateRenderer(SDL_Window * window, Uint32 flags)
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   159
{
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   160
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   161
    SDL_Renderer *renderer;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   162
    GLES_RenderData *data;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   163
    GLint value;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   164
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   165
    renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   166
    if (!renderer) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   167
        SDL_OutOfMemory();
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   168
        return NULL;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   169
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   170
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   171
    data = (GLES_RenderData *) SDL_calloc(1, sizeof(*data));
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   172
    if (!data) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   173
        GLES_DestroyRenderer(renderer);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   174
        SDL_OutOfMemory();
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   175
        return NULL;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   176
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   177
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   178
    renderer->WindowEvent = GLES_WindowEvent;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   179
    renderer->CreateTexture = GLES_CreateTexture;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   180
    renderer->UpdateTexture = GLES_UpdateTexture;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   181
    renderer->LockTexture = GLES_LockTexture;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   182
    renderer->UnlockTexture = GLES_UnlockTexture;
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   183
    renderer->UpdateViewport = GLES_UpdateViewport;
5333
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   184
    renderer->RenderClear = GLES_RenderClear;
3641
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
   185
    renderer->RenderDrawPoints = GLES_RenderDrawPoints;
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
   186
    renderer->RenderDrawLines = GLES_RenderDrawLines;
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
   187
    renderer->RenderFillRects = GLES_RenderFillRects;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   188
    renderer->RenderCopy = GLES_RenderCopy;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   189
    renderer->RenderPresent = GLES_RenderPresent;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   190
    renderer->DestroyTexture = GLES_DestroyTexture;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   191
    renderer->DestroyRenderer = GLES_DestroyRenderer;
5201
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents: 5195
diff changeset
   192
    renderer->info = GLES_RenderDriver.info;
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   193
    renderer->info.flags = SDL_RENDERER_ACCELERATED;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   194
    renderer->driverdata = data;
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   195
5209
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS
Sam Lantinga <slouken@libsdl.org>
parents: 5204
diff changeset
   196
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS
Sam Lantinga <slouken@libsdl.org>
parents: 5204
diff changeset
   197
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS
Sam Lantinga <slouken@libsdl.org>
parents: 5204
diff changeset
   198
3688
6512cba48440 Fixed Cocoa and OpenGL builds
Sam Lantinga <slouken@libsdl.org>
parents: 3685
diff changeset
   199
    data->context = SDL_GL_CreateContext(window);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   200
    if (!data->context) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   201
        GLES_DestroyRenderer(renderer);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   202
        return NULL;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   203
    }
3688
6512cba48440 Fixed Cocoa and OpenGL builds
Sam Lantinga <slouken@libsdl.org>
parents: 3685
diff changeset
   204
    if (SDL_GL_MakeCurrent(window, data->context) < 0) {
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   205
        GLES_DestroyRenderer(renderer);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   206
        return NULL;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   207
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   208
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   209
    if (flags & SDL_RENDERER_PRESENTVSYNC) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   210
        SDL_GL_SetSwapInterval(1);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   211
    } else {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   212
        SDL_GL_SetSwapInterval(0);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   213
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   214
    if (SDL_GL_GetSwapInterval() > 0) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   215
        renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   216
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   217
3161
494559cc723b OpenPandora support added by David Carré
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
   218
#if SDL_VIDEO_DRIVER_PANDORA
494559cc723b OpenPandora support added by David Carré
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
   219
    data->GL_OES_draw_texture_supported = SDL_FALSE;
494559cc723b OpenPandora support added by David Carré
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
   220
    data->useDrawTexture = SDL_FALSE;
494559cc723b OpenPandora support added by David Carré
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
   221
#else
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   222
    if (SDL_GL_ExtensionSupported("GL_OES_draw_texture")) {
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   223
        data->GL_OES_draw_texture_supported = SDL_TRUE;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   224
        data->useDrawTexture = SDL_TRUE;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   225
    } else {
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   226
        data->GL_OES_draw_texture_supported = SDL_FALSE;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   227
        data->useDrawTexture = SDL_FALSE;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   228
    }
3161
494559cc723b OpenPandora support added by David Carré
Sam Lantinga <slouken@libsdl.org>
parents: 3139
diff changeset
   229
#endif
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   230
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   231
    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   232
    renderer->info.max_texture_width = value;
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   233
    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   234
    renderer->info.max_texture_height = value;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   235
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   236
    /* Set up parameters for rendering */
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   237
    data->blendMode = -1;
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   238
    glDisable(GL_DEPTH_TEST);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   239
    glDisable(GL_CULL_FACE);
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   240
    glMatrixMode(GL_MODELVIEW);
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   241
    glLoadIdentity();
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   242
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   243
    glEnableClientState(GL_VERTEX_ARRAY);
5330
874c671c8043 Fixed crash when drawing non-textured primitives
Sam Lantinga <slouken@libsdl.org>
parents: 5297
diff changeset
   244
    //glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5053
b5b42be9333c Fixed bug #1026
Sam Lantinga <slouken@libsdl.org>
parents: 5052
diff changeset
   245
    
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   246
    return renderer;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   247
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   248
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   249
static void
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   250
GLES_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event)
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   251
{
5276
8e421890cdb8 Fixed bug #1117
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   252
    if (event->event == SDL_WINDOWEVENT_SIZE_CHANGED) {
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   253
        /* Rebind the context to the window area and update matrices */
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   254
        SDL_CurrentContext = NULL;
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   255
    }
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   256
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   257
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   258
static __inline__ int
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   259
power_of_2(int input)
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   260
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   261
    int value = 1;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   262
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   263
    while (value < input) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   264
        value <<= 1;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   265
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   266
    return value;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   267
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   268
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   269
static int
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
   270
GLES_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   271
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   272
    GLES_TextureData *data;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   273
    GLint internalFormat;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   274
    GLenum format, type;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   275
    int texture_w, texture_h;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   276
    GLenum result;
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2964
diff changeset
   277
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   278
    GLES_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   279
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   280
    switch (texture->format) {
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   281
    case SDL_PIXELFORMAT_ABGR8888:
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
   282
        internalFormat = GL_RGBA;
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
   283
        format = GL_RGBA;
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
   284
        type = GL_UNSIGNED_BYTE;
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
   285
        break;
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   286
    default:
5203
25ffd4e5255c Minor consistency cleanup and documentation link update.
Sam Lantinga <slouken@libsdl.org>
parents: 5201
diff changeset
   287
        SDL_SetError("Texture format not supported");
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   288
        return -1;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   289
    }
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   290
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   291
    data = (GLES_TextureData *) SDL_calloc(1, sizeof(*data));
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   292
    if (!data) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   293
        SDL_OutOfMemory();
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   294
        return -1;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   295
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   296
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   297
    if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   298
        data->pitch = texture->w * SDL_BYTESPERPIXEL(texture->format);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   299
        data->pixels = SDL_malloc(texture->h * data->pitch);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   300
        if (!data->pixels) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   301
            SDL_OutOfMemory();
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   302
            SDL_free(data);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   303
            return -1;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   304
        }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   305
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   306
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   307
    texture->driverdata = data;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   308
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   309
    glGetError();
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   310
    glEnable(GL_TEXTURE_2D);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   311
    glGenTextures(1, &data->texture);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   312
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   313
    data->type = GL_TEXTURE_2D;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   314
    /* no NPOV textures allowed in OpenGL ES (yet) */
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   315
    texture_w = power_of_2(texture->w);
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   316
    texture_h = power_of_2(texture->h);
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   317
    data->texw = (GLfloat) texture->w / texture_w;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   318
    data->texh = (GLfloat) texture->h / texture_h;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   319
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   320
    data->format = format;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   321
    data->formattype = type;
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   322
    glBindTexture(data->type, data->texture);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   323
    glTexParameteri(data->type, GL_TEXTURE_MIN_FILTER,
5138
da10636e5eca Making the API simpler, scaling is always defined as linear interpolation and should be supported as much as possible on all renderers.
Sam Lantinga <slouken@libsdl.org>
parents: 5053
diff changeset
   324
                                GL_LINEAR);
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   325
    glTexParameteri(data->type, GL_TEXTURE_MAG_FILTER,
5138
da10636e5eca Making the API simpler, scaling is always defined as linear interpolation and should be supported as much as possible on all renderers.
Sam Lantinga <slouken@libsdl.org>
parents: 5053
diff changeset
   326
                                GL_LINEAR);
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   327
    glTexParameteri(data->type, GL_TEXTURE_WRAP_S,
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   328
                                GL_CLAMP_TO_EDGE);
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   329
    glTexParameteri(data->type, GL_TEXTURE_WRAP_T,
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   330
                                GL_CLAMP_TO_EDGE);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   331
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   332
    glTexImage2D(data->type, 0, internalFormat, texture_w,
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   333
                             texture_h, 0, format, type, NULL);
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   334
    glDisable(GL_TEXTURE_2D);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   335
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   336
    result = glGetError();
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   337
    if (result != GL_NO_ERROR) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   338
        GLES_SetError("glTexImage2D()", result);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   339
        return -1;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   340
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   341
    return 0;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   342
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   343
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   344
static int
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
   345
GLES_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
   346
                   const SDL_Rect * rect, const void *pixels, int pitch)
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   347
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   348
    GLES_TextureData *data = (GLES_TextureData *) texture->driverdata;
5227
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   349
    Uint8 *blob = NULL;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   350
    Uint8 *src;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   351
    int srcPitch;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   352
    int y;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   353
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   354
    GLES_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   355
5227
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   356
    /* Bail out if we're supposed to update an empty rectangle */
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   357
    if (rect->w <= 0 || rect->h <= 0)
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   358
        return 0;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   359
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   360
    /* Reformat the texture data into a tightly packed array */
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   361
    srcPitch = rect->w * SDL_BYTESPERPIXEL(texture->format);
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   362
    src = (Uint8 *)pixels;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   363
    if (pitch != srcPitch)
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   364
    {
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   365
        blob = (Uint8 *)SDL_malloc(srcPitch * rect->h);
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   366
        if (!blob)
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   367
        {
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   368
            SDL_OutOfMemory();
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   369
            return -1;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   370
        }
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   371
        src = blob;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   372
        for (y = 0; y < rect->h; ++y)
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   373
        {
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   374
            SDL_memcpy(src, pixels, srcPitch);
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   375
            src += srcPitch;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   376
            pixels = (Uint8 *)pixels + pitch;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   377
        }
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   378
        src = blob;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   379
    }
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   380
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   381
    /* Create a texture subimage with the supplied data */
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   382
    glGetError();
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   383
    glEnable(data->type);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   384
    glBindTexture(data->type, data->texture);
5227
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   385
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   386
    glTexSubImage2D(data->type,
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   387
                    0,
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   388
                    rect->x,
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   389
                    rect->y,
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   390
                    rect->w,
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   391
                    rect->h,
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   392
                    data->format,
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   393
                    data->formattype,
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   394
                    src);
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   395
    if (blob) {
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   396
        SDL_free(blob);
5052
4cb4b18cbae3 Fixed bug #1028
Sam Lantinga <slouken@libsdl.org>
parents: 4990
diff changeset
   397
    }
4cb4b18cbae3 Fixed bug #1028
Sam Lantinga <slouken@libsdl.org>
parents: 4990
diff changeset
   398
5227
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   399
    if (glGetError() != GL_NO_ERROR)
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   400
    {
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   401
        SDL_SetError("Failed to update texture");
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   402
        return -1;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   403
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   404
    return 0;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   405
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   406
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   407
static int
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   408
GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
5156
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer.
Sam Lantinga <slouken@libsdl.org>
parents: 5154
diff changeset
   409
                 const SDL_Rect * rect, void **pixels, int *pitch)
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   410
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   411
    GLES_TextureData *data = (GLES_TextureData *) texture->driverdata;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   412
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   413
    *pixels =
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   414
        (void *) ((Uint8 *) data->pixels + rect->y * data->pitch +
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   415
                  rect->x * SDL_BYTESPERPIXEL(texture->format));
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   416
    *pitch = data->pitch;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   417
    return 0;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   418
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   419
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   420
static void
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   421
GLES_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   422
{
5156
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer.
Sam Lantinga <slouken@libsdl.org>
parents: 5154
diff changeset
   423
    GLES_TextureData *data = (GLES_TextureData *) texture->driverdata;
5227
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   424
    SDL_Rect rect;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   425
5227
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   426
    /* We do whole texture updates, at least for now */
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   427
    rect.x = 0;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   428
    rect.y = 0;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   429
    rect.w = texture->w;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   430
    rect.h = texture->h;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths
Sam Lantinga <slouken@libsdl.org>
parents: 5226
diff changeset
   431
    GLES_UpdateTexture(renderer, texture, &rect, data->pixels, data->pitch);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   432
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   433
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   434
static int
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   435
GLES_UpdateViewport(SDL_Renderer * renderer)
5224
2178ffe17222 Added function SDL_RenderSetClipRect()
Sam Lantinga <slouken@libsdl.org>
parents: 5209
diff changeset
   436
{
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   437
    GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   438
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   439
    if (SDL_CurrentContext != data->context) {
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   440
        /* We'll update the viewport after we rebind the context */
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   441
        return 0;
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   442
    }
5224
2178ffe17222 Added function SDL_RenderSetClipRect()
Sam Lantinga <slouken@libsdl.org>
parents: 5209
diff changeset
   443
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   444
    glViewport(renderer->viewport.x, renderer->viewport.y,
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   445
               renderer->viewport.w, renderer->viewport.h);
5224
2178ffe17222 Added function SDL_RenderSetClipRect()
Sam Lantinga <slouken@libsdl.org>
parents: 5209
diff changeset
   446
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   447
    glMatrixMode(GL_PROJECTION);
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   448
    glLoadIdentity();
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   449
    glOrthof((GLfloat) 0,
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   450
			 (GLfloat) renderer->viewport.w,
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   451
             (GLfloat) renderer->viewport.h,
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   452
             (GLfloat) 0, 0.0, 1.0);
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   453
    return 0;
5224
2178ffe17222 Added function SDL_RenderSetClipRect()
Sam Lantinga <slouken@libsdl.org>
parents: 5209
diff changeset
   454
}
2178ffe17222 Added function SDL_RenderSetClipRect()
Sam Lantinga <slouken@libsdl.org>
parents: 5209
diff changeset
   455
5333
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   456
static int
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   457
GLES_RenderClear(SDL_Renderer * renderer)
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   458
{
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   459
    GLES_ActivateRenderer(renderer);
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   460
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   461
    glClearColor((GLfloat) renderer->r * inv255f,
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   462
                 (GLfloat) renderer->g * inv255f,
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   463
                 (GLfloat) renderer->b * inv255f,
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   464
                 (GLfloat) renderer->a * inv255f);
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   465
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   466
    glClear(GL_COLOR_BUFFER_BIT);
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   467
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   468
    return 0;
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   469
}
5d3a2cd4e8c9 Implemented OpenGL ES RenderClear()
Sam Lantinga <slouken@libsdl.org>
parents: 5330
diff changeset
   470
5224
2178ffe17222 Added function SDL_RenderSetClipRect()
Sam Lantinga <slouken@libsdl.org>
parents: 5209
diff changeset
   471
static void
5140
e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers.
Sam Lantinga <slouken@libsdl.org>
parents: 5138
diff changeset
   472
GLES_SetBlendMode(GLES_RenderData * data, int blendMode)
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   473
{
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   474
    if (blendMode != data->blendMode) {
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   475
        switch (blendMode) {
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   476
        case SDL_BLENDMODE_NONE:
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   477
            glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   478
            glDisable(GL_BLEND);
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   479
            break;
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   480
        case SDL_BLENDMODE_BLEND:
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   481
            glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   482
            glEnable(GL_BLEND);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   483
            glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   484
            break;
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   485
        case SDL_BLENDMODE_ADD:
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   486
            glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   487
            glEnable(GL_BLEND);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   488
            glBlendFunc(GL_SRC_ALPHA, GL_ONE);
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   489
            break;
5184
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
   490
        case SDL_BLENDMODE_MOD:
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   491
            glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   492
            glEnable(GL_BLEND);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   493
            glBlendFunc(GL_ZERO, GL_SRC_COLOR);
5184
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
   494
            break;
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   495
        }
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   496
        data->blendMode = blendMode;
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   497
    }
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   498
}
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   499
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   500
static int
3641
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
   501
GLES_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
   502
                      int count)
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   503
{
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   504
    GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
3547
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   505
    int i;
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   506
    GLshort *vertices;
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   507
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   508
    GLES_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   509
5140
e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers.
Sam Lantinga <slouken@libsdl.org>
parents: 5138
diff changeset
   510
    GLES_SetBlendMode(data, renderer->blendMode);
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   511
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   512
    glColor4f((GLfloat) renderer->r * inv255f,
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   513
                    (GLfloat) renderer->g * inv255f,
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   514
                    (GLfloat) renderer->b * inv255f,
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   515
                    (GLfloat) renderer->a * inv255f);
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   516
3547
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   517
    vertices = SDL_stack_alloc(GLshort, count*2);
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   518
    for (i = 0; i < count; ++i) {
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   519
        vertices[2*i+0] = (GLshort)points[i].x;
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   520
        vertices[2*i+1] = (GLshort)points[i].y;
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   521
    }
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   522
    glVertexPointer(2, GL_SHORT, 0, vertices);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   523
    glDrawArrays(GL_POINTS, 0, count);
3547
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   524
    SDL_stack_free(vertices);
2964
Sam Lantinga <slouken@libsdl.org>
parents: 2949
diff changeset
   525
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   526
    return 0;
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   527
}
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   528
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   529
static int
3641
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
   530
GLES_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
   531
                     int count)
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   532
{
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   533
    GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
3547
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   534
    int i;
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   535
    GLshort *vertices;
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   536
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   537
    GLES_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   538
5140
e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers.
Sam Lantinga <slouken@libsdl.org>
parents: 5138
diff changeset
   539
    GLES_SetBlendMode(data, renderer->blendMode);
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   540
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   541
    glColor4f((GLfloat) renderer->r * inv255f,
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   542
                    (GLfloat) renderer->g * inv255f,
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   543
                    (GLfloat) renderer->b * inv255f,
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   544
                    (GLfloat) renderer->a * inv255f);
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   545
3547
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   546
    vertices = SDL_stack_alloc(GLshort, count*2);
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   547
    for (i = 0; i < count; ++i) {
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   548
        vertices[2*i+0] = (GLshort)points[i].x;
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   549
        vertices[2*i+1] = (GLshort)points[i].y;
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   550
    }
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   551
    glVertexPointer(2, GL_SHORT, 0, vertices);
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   552
    if (count > 2 && 
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   553
        points[0].x == points[count-1].x && points[0].y == points[count-1].y) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   554
        /* GL_LINE_LOOP takes care of the final segment */
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   555
        --count;
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   556
        glDrawArrays(GL_LINE_LOOP, 0, count);
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   557
    } else {
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   558
        glDrawArrays(GL_LINE_STRIP, 0, count);
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   559
    }
3547
8b18669c2663 Fixed building on iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
   560
    SDL_stack_free(vertices);
2949
4eabc35fbb4a Modified OpenGL ES render driver to support new SDL_RenderFill, SDL_RenderLine, and SDL_RenderPoint.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents: 2937
diff changeset
   561
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   562
    return 0;
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   563
}
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   564
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   565
static int
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   566
GLES_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect * rects,
3641
1e2e19d51265 Fixed iPhone build
Sam Lantinga <slouken@libsdl.org>
parents: 3547
diff changeset
   567
                     int count)
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   568
{
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   569
    GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   570
    int i;
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   571
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   572
    GLES_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   573
5140
e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers.
Sam Lantinga <slouken@libsdl.org>
parents: 5138
diff changeset
   574
    GLES_SetBlendMode(data, renderer->blendMode);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   575
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   576
    glColor4f((GLfloat) renderer->r * inv255f,
2936
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   577
                    (GLfloat) renderer->g * inv255f,
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   578
                    (GLfloat) renderer->b * inv255f,
066384910f50 iPhone build compiles again (drawing routines need to be implemented)
Sam Lantinga <slouken@libsdl.org>
parents: 2884
diff changeset
   579
                    (GLfloat) renderer->a * inv255f);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   580
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   581
    for (i = 0; i < count; ++i) {
5297
1800dc39b74c Changed the concept of a render clip rect to a render viewport.
Sam Lantinga <slouken@libsdl.org>
parents: 5276
diff changeset
   582
        const SDL_Rect *rect = &rects[i];
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   583
        GLshort minx = rect->x;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   584
        GLshort maxx = rect->x + rect->w;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   585
        GLshort miny = rect->y;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   586
        GLshort maxy = rect->y + rect->h;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   587
        GLshort vertices[8];
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   588
        vertices[0] = minx;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   589
        vertices[1] = miny;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   590
        vertices[2] = maxx;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   591
        vertices[3] = miny;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   592
        vertices[4] = minx;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   593
        vertices[5] = maxy;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   594
        vertices[6] = maxx;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   595
        vertices[7] = maxy;
2964
Sam Lantinga <slouken@libsdl.org>
parents: 2949
diff changeset
   596
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   597
        glVertexPointer(2, GL_SHORT, 0, vertices);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   598
        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 3520
diff changeset
   599
    }
2949
4eabc35fbb4a Modified OpenGL ES render driver to support new SDL_RenderFill, SDL_RenderLine, and SDL_RenderPoint.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents: 2937
diff changeset
   600
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   601
    return 0;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   602
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   603
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   604
static int
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   605
GLES_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   606
                const SDL_Rect * srcrect, const SDL_Rect * dstrect)
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   607
{
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   608
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   609
    GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   610
    GLES_TextureData *texturedata = (GLES_TextureData *) texture->driverdata;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   611
    int minx, miny, maxx, maxy;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   612
    GLfloat minu, maxu, minv, maxv;
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   613
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   614
    GLES_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   615
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   616
    glEnable(GL_TEXTURE_2D);
5330
874c671c8043 Fixed crash when drawing non-textured primitives
Sam Lantinga <slouken@libsdl.org>
parents: 5297
diff changeset
   617
    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
3122
6c98826d88b0 OpenGL ES renderer state fixes. Now GL_TEXTURE_2D is not enabled by default.
Mike Gorchak <lestat@i.com.ua>
parents: 3099
diff changeset
   618
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   619
    glBindTexture(texturedata->type, texturedata->texture);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   620
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   621
    if (texture->modMode) {
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   622
        glColor4f((GLfloat) texture->r * inv255f,
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   623
                        (GLfloat) texture->g * inv255f,
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   624
                        (GLfloat) texture->b * inv255f,
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   625
                        (GLfloat) texture->a * inv255f);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   626
    } else {
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   627
        glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   628
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   629
5140
e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers.
Sam Lantinga <slouken@libsdl.org>
parents: 5138
diff changeset
   630
    GLES_SetBlendMode(data, texture->blendMode);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   631
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   632
    if (data->GL_OES_draw_texture_supported && data->useDrawTexture) {
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   633
        /* this code is a little funny because the viewport is upside down vs SDL's coordinate system */
5154
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library.
Sam Lantinga <slouken@libsdl.org>
parents: 5150
diff changeset
   634
        GLint cropRect[4];
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library.
Sam Lantinga <slouken@libsdl.org>
parents: 5150
diff changeset
   635
        int w, h;
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3641
diff changeset
   636
        SDL_Window *window = renderer->window;
5154
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library.
Sam Lantinga <slouken@libsdl.org>
parents: 5150
diff changeset
   637
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library.
Sam Lantinga <slouken@libsdl.org>
parents: 5150
diff changeset
   638
        SDL_GetWindowSize(window, &w, &h);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   639
        cropRect[0] = srcrect->x;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   640
        cropRect[1] = srcrect->y + srcrect->h;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   641
        cropRect[2] = srcrect->w;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   642
        cropRect[3] = -srcrect->h;
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   643
        glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES,
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   644
                               cropRect);
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   645
        glDrawTexiOES(dstrect->x, h - dstrect->y - dstrect->h, 0,
5154
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library.
Sam Lantinga <slouken@libsdl.org>
parents: 5150
diff changeset
   646
                            dstrect->w, dstrect->h);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   647
    } else {
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   648
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   649
        minx = dstrect->x;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   650
        miny = dstrect->y;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   651
        maxx = dstrect->x + dstrect->w;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   652
        maxy = dstrect->y + dstrect->h;
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   653
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   654
        minu = (GLfloat) srcrect->x / texture->w;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   655
        minu *= texturedata->texw;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   656
        maxu = (GLfloat) (srcrect->x + srcrect->w) / texture->w;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   657
        maxu *= texturedata->texw;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   658
        minv = (GLfloat) srcrect->y / texture->h;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   659
        minv *= texturedata->texh;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   660
        maxv = (GLfloat) (srcrect->y + srcrect->h) / texture->h;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   661
        maxv *= texturedata->texh;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   662
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   663
        GLshort vertices[8];
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   664
        GLfloat texCoords[8];
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   665
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   666
        vertices[0] = minx;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   667
        vertices[1] = miny;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   668
        vertices[2] = maxx;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   669
        vertices[3] = miny;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   670
        vertices[4] = minx;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   671
        vertices[5] = maxy;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   672
        vertices[6] = maxx;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   673
        vertices[7] = maxy;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   674
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   675
        texCoords[0] = minu;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   676
        texCoords[1] = minv;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   677
        texCoords[2] = maxu;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   678
        texCoords[3] = minv;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   679
        texCoords[4] = minu;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   680
        texCoords[5] = maxv;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   681
        texCoords[6] = maxu;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   682
        texCoords[7] = maxv;
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   683
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   684
        glVertexPointer(2, GL_SHORT, 0, vertices);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   685
        glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   686
        glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
3122
6c98826d88b0 OpenGL ES renderer state fixes. Now GL_TEXTURE_2D is not enabled by default.
Mike Gorchak <lestat@i.com.ua>
parents: 3099
diff changeset
   687
    }
5330
874c671c8043 Fixed crash when drawing non-textured primitives
Sam Lantinga <slouken@libsdl.org>
parents: 5297
diff changeset
   688
	
874c671c8043 Fixed crash when drawing non-textured primitives
Sam Lantinga <slouken@libsdl.org>
parents: 5297
diff changeset
   689
    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
5204
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h
Sam Lantinga <slouken@libsdl.org>
parents: 5203
diff changeset
   690
    glDisable(GL_TEXTURE_2D);
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   691
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   692
    return 0;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   693
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   694
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   695
static void
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3122
diff changeset
   696
GLES_RenderPresent(SDL_Renderer * renderer)
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   697
{
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   698
    GLES_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   699
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   700
    SDL_GL_SwapWindow(renderer->window);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   701
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   702
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   703
static void
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   704
GLES_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   705
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   706
    GLES_TextureData *data = (GLES_TextureData *) texture->driverdata;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   707
5147
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   708
    GLES_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future.
Sam Lantinga <slouken@libsdl.org>
parents: 5142
diff changeset
   709
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   710
    if (!data) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   711
        return;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   712
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   713
    if (data->texture) {
2753
Sam Lantinga <slouken@libsdl.org>
parents: 2739
diff changeset
   714
        glDeleteTextures(1, &data->texture);
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   715
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   716
    if (data->pixels) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   717
        SDL_free(data->pixels);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   718
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   719
    SDL_free(data);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   720
    texture->driverdata = NULL;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   721
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   722
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   723
static void
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   724
GLES_DestroyRenderer(SDL_Renderer * renderer)
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   725
{
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   726
    GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   727
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   728
    if (data) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   729
        if (data->context) {
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   730
            SDL_GL_DeleteContext(data->context);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   731
        }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   732
        SDL_free(data);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   733
    }
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   734
    SDL_free(renderer);
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   735
}
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   736
5226
710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render
Sam Lantinga <slouken@libsdl.org>
parents: 5224
diff changeset
   737
#endif /* SDL_VIDEO_RENDER_OGL_ES && !SDL_RENDER_DISABLED */
2739
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   738
68862734a5fd These files are similar in purpose and structure as SDL_renderer_gl.c and SDL_renderer_gl.h, except they use OpenGL ES 1.1 for rendering.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   739
/* vi: set ts=4 sw=4 expandtab: */