test/testsprite2.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 19 Jul 2006 05:03:21 +0000
changeset 1916 c773b0c0ac89
parent 1915 a228436a2404
child 1917 3f54b3ec5a07
permissions -rw-r--r--
Implemented blend modes in the D3D renderer
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/* Simple program:  Move N sprites around on the screen as fast as possible */
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include "common.h"
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#define NUM_SPRITES	100
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#define MAX_SPEED 	1
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#define BACKGROUND  0x00A0A0A0
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static CommonState *state;
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static int num_sprites;
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static SDL_TextureID *sprites;
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static SDL_Rect *positions;
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static SDL_Rect *velocities;
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static int sprite_w, sprite_h;
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static SDL_TextureBlendMode blendMode = SDL_TextureBlendMode_Mask;
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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static void
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quit(int rc)
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{
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    if (sprites) {
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        SDL_free(sprites);
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    }
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    if (positions) {
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        SDL_free(positions);
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    }
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    if (velocities) {
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        SDL_free(velocities);
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    }
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    CommonQuit(state);
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    exit(rc);
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}
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int
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LoadSprite(char *file)
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{
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    int i;
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    SDL_Surface *temp;
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    /* Load the sprite image */
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    temp = SDL_LoadBMP(file);
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    if (temp == NULL) {
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        fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError());
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        return (-1);
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    }
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    sprite_w = temp->w;
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    sprite_h = temp->h;
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    /* Set transparent pixel as the pixel at (0,0) */
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    if (temp->format->palette) {
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        SDL_SetColorKey(temp, SDL_SRCCOLORKEY, *(Uint8 *) temp->pixels);
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    }
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    /* Create textures from the image */
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    for (i = 0; i < state->num_windows; ++i) {
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        SDL_SelectRenderer(state->windows[i]);
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        sprites[i] =
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            SDL_CreateTextureFromSurface(0, SDL_TextureAccess_Remote, temp);
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        if (!sprites[i]) {
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            fprintf(stderr, "Couldn't create texture: %s\n", SDL_GetError());
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            SDL_FreeSurface(temp);
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            return (-1);
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        }
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    }
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    SDL_FreeSurface(temp);
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    /* We're ready to roll. :) */
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    return (0);
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}
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void
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MoveSprites(SDL_WindowID window, SDL_TextureID sprite)
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{
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    int i, n;
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    int window_w, window_h;
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    SDL_Rect area, *position, *velocity;
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    SDL_SelectRenderer(window);
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    /* Query the sizes */
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    SDL_GetWindowSize(window, &window_w, &window_h);
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    /* Move the sprite, bounce at the wall, and draw */
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    n = 0;
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    SDL_RenderFill(NULL, BACKGROUND);
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    /*
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       for (i = 0; i < num_sprites; ++i) {
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       position = &positions[i];
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       SDL_RenderFill(position, BACKGROUND);
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       }
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     */
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    for (i = 0; i < num_sprites; ++i) {
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        position = &positions[i];
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        velocity = &velocities[i];
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        position->x += velocity->x;
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        if ((position->x < 0) || (position->x >= (window_w - sprite_w))) {
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            velocity->x = -velocity->x;
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            position->x += velocity->x;
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        }
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        position->y += velocity->y;
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        if ((position->y < 0) || (position->y >= (window_h - sprite_w))) {
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            velocity->y = -velocity->y;
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            position->y += velocity->y;
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        }
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        /* Blit the sprite onto the screen */
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        SDL_RenderCopy(sprite, NULL, position, blendMode,
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                       SDL_TextureScaleMode_None);
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    }
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    /* Update the screen! */
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    SDL_RenderPresent();
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}
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int
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main(int argc, char *argv[])
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{
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   122
    int i, done;
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   123
    SDL_Event event;
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   124
    Uint32 then, now, frames;
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diff changeset
   125
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   126
    /* Initialize parameters */
1895
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   127
    num_sprites = NUM_SPRITES;
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diff changeset
   128
051df511279c Added a test program framework for easy initialization.
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diff changeset
   129
    /* Initialize test framework */
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   130
    state = CommonCreateState(argv, SDL_INIT_VIDEO);
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diff changeset
   131
    if (!state) {
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   132
        return 1;
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diff changeset
   133
    }
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diff changeset
   134
    for (i = 1; i < argc;) {
051df511279c Added a test program framework for easy initialization.
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diff changeset
   135
        int consumed;
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diff changeset
   136
051df511279c Added a test program framework for easy initialization.
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   137
        consumed = CommonArg(state, i);
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
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diff changeset
   138
        if (consumed == 0) {
1916
c773b0c0ac89 Implemented blend modes in the D3D renderer
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diff changeset
   139
            consumed = -1;
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   140
            if (SDL_strcasecmp(argv[i], "--blend") == 0) {
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diff changeset
   141
                if (argv[i + 1]) {
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diff changeset
   142
                    if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
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diff changeset
   143
                        blendMode = SDL_TextureBlendMode_None;
c773b0c0ac89 Implemented blend modes in the D3D renderer
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diff changeset
   144
                        consumed = 2;
c773b0c0ac89 Implemented blend modes in the D3D renderer
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diff changeset
   145
                    } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) {
c773b0c0ac89 Implemented blend modes in the D3D renderer
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diff changeset
   146
                        blendMode = SDL_TextureBlendMode_Blend;
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diff changeset
   147
                        consumed = 2;
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diff changeset
   148
                    } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) {
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diff changeset
   149
                        blendMode = SDL_TextureBlendMode_Add;
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   150
                        consumed = 2;
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diff changeset
   151
                    } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) {
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   152
                        blendMode = SDL_TextureBlendMode_Mod;
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diff changeset
   153
                        consumed = 2;
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diff changeset
   154
                    }
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diff changeset
   155
                }
c773b0c0ac89 Implemented blend modes in the D3D renderer
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diff changeset
   156
            } else if (SDL_isdigit(*argv[i])) {
c773b0c0ac89 Implemented blend modes in the D3D renderer
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diff changeset
   157
                num_sprites = SDL_atoi(argv[i]);
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diff changeset
   158
                consumed = 1;
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diff changeset
   159
            }
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
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diff changeset
   160
        }
1914
051df511279c Added a test program framework for easy initialization.
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diff changeset
   161
        if (consumed < 0) {
1916
c773b0c0ac89 Implemented blend modes in the D3D renderer
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parents: 1915
diff changeset
   162
            fprintf(stderr, "Usage: %s %s [--blend none|blend|add|mod]",
c773b0c0ac89 Implemented blend modes in the D3D renderer
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parents: 1915
diff changeset
   163
                    argv[0], CommonUsage(state));
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   164
            quit(1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   165
        }
1914
051df511279c Added a test program framework for easy initialization.
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diff changeset
   166
        i += consumed;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   167
    }
1914
051df511279c Added a test program framework for easy initialization.
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diff changeset
   168
    if (!CommonInit(state)) {
051df511279c Added a test program framework for easy initialization.
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diff changeset
   169
        quit(2);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   170
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
   171
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   172
    /* Create the windows, initialize the renderers, and load the textures */
1914
051df511279c Added a test program framework for easy initialization.
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parents: 1907
diff changeset
   173
    sprites =
051df511279c Added a test program framework for easy initialization.
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diff changeset
   174
        (SDL_TextureID *) SDL_malloc(state->num_windows * sizeof(*sprites));
051df511279c Added a test program framework for easy initialization.
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parents: 1907
diff changeset
   175
    if (!sprites) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   176
        fprintf(stderr, "Out of memory!\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
   177
        quit(2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
   178
    }
1914
051df511279c Added a test program framework for easy initialization.
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parents: 1907
diff changeset
   179
    for (i = 0; i < state->num_windows; ++i) {
051df511279c Added a test program framework for easy initialization.
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parents: 1907
diff changeset
   180
        SDL_SelectRenderer(state->windows[i]);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
   181
        SDL_RenderFill(NULL, BACKGROUND);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
   182
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
   183
    if (LoadSprite("icon.bmp") < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   184
        quit(2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
   185
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   186
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   187
    /* Allocate memory for the sprite info */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   188
    positions = (SDL_Rect *) SDL_malloc(num_sprites * sizeof(SDL_Rect));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   189
    velocities = (SDL_Rect *) SDL_malloc(num_sprites * sizeof(SDL_Rect));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   190
    if (!positions || !velocities) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   191
        fprintf(stderr, "Out of memory!\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   192
        quit(2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   193
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   194
    srand(time(NULL));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   195
    for (i = 0; i < num_sprites; ++i) {
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents: 1907
diff changeset
   196
        positions[i].x = rand() % (state->window_w - sprite_w);
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents: 1907
diff changeset
   197
        positions[i].y = rand() % (state->window_h - sprite_h);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   198
        positions[i].w = sprite_w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   199
        positions[i].h = sprite_h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   200
        velocities[i].x = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   201
        velocities[i].y = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   202
        while (!velocities[i].x && !velocities[i].y) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   203
            velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   204
            velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   205
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   206
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   207
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
   208
    /* Main render loop */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   209
    frames = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   210
    then = SDL_GetTicks();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   211
    done = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   212
    while (!done) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   213
        /* Check for events */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   214
        ++frames;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   215
        while (SDL_PollEvent(&event)) {
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents: 1907
diff changeset
   216
            CommonEvent(state, &event, &done);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   217
            switch (event.type) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   218
            case SDL_WINDOWEVENT:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   219
                switch (event.window.event) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   220
                case SDL_WINDOWEVENT_EXPOSED:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   221
                    SDL_SelectRenderer(event.window.windowID);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   222
                    SDL_RenderFill(NULL, BACKGROUND);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   223
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   224
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   225
                break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   226
            default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   227
                break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   228
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   229
        }
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents: 1907
diff changeset
   230
        for (i = 0; i < state->num_windows; ++i) {
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents: 1907
diff changeset
   231
            MoveSprites(state->windows[i], sprites[i]);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   232
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   233
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   234
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   235
    /* Print out some timing information */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   236
    now = SDL_GetTicks();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   237
    if (now > then) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   238
        printf("%2.2f frames per second\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   239
               ((double) frames * 1000) / (now - then));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   240
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   241
    quit(0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   242
}
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   243
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   244
/* vi: set ts=4 sw=4 expandtab: */