/
mojoshader_opengl.c
3034 lines (2574 loc) · 101 KB
1
2
3
4
5
6
7
8
9
/**
* MojoShader; generate shader programs from bytecode of compiled
* Direct3D shaders.
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
10
11
12
13
14
15
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <assert.h>
16
#ifdef _WIN32
17
18
19
20
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h> // GL headers need this for WINGDIAPI definition.
#endif
21
#if (defined(__APPLE__) && defined(__MACH__))
22
23
#include "TargetConditionals.h"
#if !TARGET_OS_IPHONE && !TARGET_OS_TV
24
#define PLATFORM_MACOSX 1
25
26
#endif /* !TARGET_OS_IPHONE && !TARGET_OS_TV */
#endif /* (defined(__APPLE__) && defined(__MACH__)) */
27
28
29
30
31
#if PLATFORM_MACOSX
#include <Carbon/Carbon.h>
#endif
32
33
34
#define __MOJOSHADER_INTERNAL__ 1
#include "mojoshader_internal.h"
35
#define GL_GLEXT_LEGACY 1
36
37
#include "GL/gl.h"
#include "GL/glext.h"
38
39
40
41
42
43
44
#ifndef GL_HALF_FLOAT_NV
#define GL_HALF_FLOAT_NV 0x140B
#endif
#ifndef GL_HALF_FLOAT_ARB
#define GL_HALF_FLOAT_ARB 0x140B
45
46
47
48
49
50
#endif
#ifndef GL_HALF_FLOAT_OES
#define GL_HALF_FLOAT_OES 0x8D61
#endif
51
52
53
54
// this happens to be the same value for ARB1 and GLSL.
#ifndef GL_PROGRAM_POINT_SIZE
#define GL_PROGRAM_POINT_SIZE 0x8642
#endif
55
56
57
58
struct MOJOSHADER_glShader
{
const MOJOSHADER_parseData *parseData;
59
GLuint handle;
60
61
62
uint32 refcount;
};
63
64
typedef struct
{
65
MOJOSHADER_shaderType shader_type;
66
const MOJOSHADER_uniform *uniform;
67
GLint location;
68
69
} UniformMap;
70
71
typedef struct
{
72
const MOJOSHADER_attribute *attribute;
73
GLint location;
74
75
} AttributeMap;
76
77
struct MOJOSHADER_glProgram
{
78
79
MOJOSHADER_glShader *vertex;
MOJOSHADER_glShader *fragment;
80
GLuint handle;
81
uint32 generation;
82
uint32 uniform_count;
83
uint32 texbem_count;
84
UniformMap *uniforms;
85
uint32 attribute_count;
86
AttributeMap *attributes;
87
88
89
90
91
92
93
94
95
96
97
98
size_t vs_uniforms_float4_count;
GLfloat *vs_uniforms_float4;
size_t vs_uniforms_int4_count;
GLint *vs_uniforms_int4;
size_t vs_uniforms_bool_count;
GLint *vs_uniforms_bool;
size_t ps_uniforms_float4_count;
GLfloat *ps_uniforms_float4;
size_t ps_uniforms_int4_count;
GLint *ps_uniforms_int4;
size_t ps_uniforms_bool_count;
GLint *ps_uniforms_bool;
99
100
uint32 refcount;
101
102
103
int uses_pointsize;
104
105
106
// 10 is apparently the resource limit according to SM3 -flibit
GLint vertex_attrib_loc[MOJOSHADER_USAGE_TOTAL][10];
107
// GLSL uses these...location of uniform arrays.
108
109
110
111
112
113
GLint vs_float4_loc;
GLint vs_int4_loc;
GLint vs_bool_loc;
GLint ps_float4_loc;
GLint ps_int4_loc;
GLint ps_bool_loc;
114
115
116
117
#ifdef MOJOSHADER_FLIP_RENDERTARGET
GLint vs_flip_loc;
int current_flip;
#endif
118
119
};
120
121
122
123
#ifndef WINGDIAPI
#define WINGDIAPI
#endif
124
// Entry points in base OpenGL that lack function pointer prototypes...
125
126
typedef WINGDIAPI void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *params);
typedef WINGDIAPI const GLubyte * (APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
127
typedef WINGDIAPI GLenum (APIENTRYP PFNGLGETERRORPROC) (void);
128
129
typedef WINGDIAPI void (APIENTRYP PFNGLENABLEPROC) (GLenum cap);
typedef WINGDIAPI void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap);
130
131
132
133
134
// Max entries for each register file type...
#define MAX_REG_FILE_F 8192
#define MAX_REG_FILE_I 2047
#define MAX_REG_FILE_B 2047
135
#define MAX_TEXBEMS 3 // ps_1_1 allows 4 texture stages, texbem can't use t0.
136
137
138
139
140
141
142
143
144
struct MOJOSHADER_glContext
{
// Allocators...
MOJOSHADER_malloc malloc_fn;
MOJOSHADER_free free_fn;
void *malloc_data;
// The constant register files...
145
146
// !!! FIXME: Man, it kills me how much memory this takes...
// !!! FIXME: ... make this dynamically allocated on demand.
147
148
149
150
151
152
GLfloat vs_reg_file_f[MAX_REG_FILE_F * 4];
GLint vs_reg_file_i[MAX_REG_FILE_I * 4];
uint8 vs_reg_file_b[MAX_REG_FILE_B];
GLfloat ps_reg_file_f[MAX_REG_FILE_F * 4];
GLint ps_reg_file_i[MAX_REG_FILE_I * 4];
uint8 ps_reg_file_b[MAX_REG_FILE_B];
153
GLuint sampler_reg_file[16];
154
GLfloat texbem_state[MAX_TEXBEMS * 6];
155
156
157
158
// This increments every time we change the register files.
uint32 generation;
159
160
161
// This keeps track of implicitly linked programs.
HashTable *linker_cache;
162
// This tells us which vertex attribute arrays we have enabled.
163
GLint max_attrs;
164
165
166
uint8 want_attr[32];
uint8 have_attr[32];
167
168
169
// This shadows vertex attribute and divisor states.
GLuint attr_divisor[32];
170
171
172
// rarely used, so we don't touch when we don't have to.
int pointsize_enabled;
173
174
175
// GL stuff...
int opengl_major;
int opengl_minor;
176
177
int glsl_major;
int glsl_minor;
178
MOJOSHADER_glProgram *bound_program;
179
char profile[16];
180
181
182
183
184
185
#ifdef MOJOSHADER_XNA4_VERTEX_TEXTURES
// Vertex texture sampler offset...
int vertex_sampler_offset;
#endif
186
// Extensions...
187
188
int have_core_opengl;
int have_opengl_2; // different entry points than ARB extensions.
189
int have_opengl_3; // different extension query.
190
int have_opengl_es; // different extension requirements
191
192
193
194
195
196
197
198
199
200
201
202
203
int have_GL_ARB_vertex_program;
int have_GL_ARB_fragment_program;
int have_GL_NV_vertex_program2_option;
int have_GL_NV_fragment_program2;
int have_GL_NV_vertex_program3;
int have_GL_NV_gpu_program4;
int have_GL_ARB_shader_objects;
int have_GL_ARB_vertex_shader;
int have_GL_ARB_fragment_shader;
int have_GL_ARB_shading_language_100;
int have_GL_NV_half_float;
int have_GL_ARB_half_float_vertex;
int have_GL_OES_vertex_half_float;
204
int have_GL_ARB_instanced_arrays;
205
206
207
// Entry points...
PFNGLGETSTRINGPROC glGetString;
208
PFNGLGETSTRINGIPROC glGetStringi;
209
PFNGLGETERRORPROC glGetError;
210
PFNGLGETINTEGERVPROC glGetIntegerv;
211
212
PFNGLENABLEPROC glEnable;
PFNGLDISABLEPROC glDisable;
213
214
215
216
217
218
219
220
221
222
PFNGLDELETESHADERPROC glDeleteShader;
PFNGLDELETEPROGRAMPROC glDeleteProgram;
PFNGLATTACHSHADERPROC glAttachShader;
PFNGLCOMPILESHADERPROC glCompileShader;
PFNGLCREATESHADERPROC glCreateShader;
PFNGLCREATEPROGRAMPROC glCreateProgram;
PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation;
PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog;
223
PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
224
225
226
227
228
229
230
PFNGLGETSHADERIVPROC glGetShaderiv;
PFNGLGETPROGRAMIVPROC glGetProgramiv;
PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation;
PFNGLLINKPROGRAMPROC glLinkProgram;
PFNGLSHADERSOURCEPROC glShaderSource;
PFNGLUNIFORM1IPROC glUniform1i;
PFNGLUNIFORM1IVPROC glUniform1iv;
231
232
233
#ifdef MOJOSHADER_FLIP_RENDERTARGET
PFNGLUNIFORM1FPROC glUniform1f;
#endif
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
PFNGLUNIFORM4FVPROC glUniform4fv;
PFNGLUNIFORM4IVPROC glUniform4iv;
PFNGLUSEPROGRAMPROC glUseProgram;
PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
PFNGLDELETEOBJECTARBPROC glDeleteObjectARB;
PFNGLATTACHOBJECTARBPROC glAttachObjectARB;
PFNGLCOMPILESHADERARBPROC glCompileShaderARB;
PFNGLCREATEPROGRAMOBJECTARBPROC glCreateProgramObjectARB;
PFNGLCREATESHADEROBJECTARBPROC glCreateShaderObjectARB;
PFNGLDISABLEVERTEXATTRIBARRAYARBPROC glDisableVertexAttribArrayARB;
PFNGLENABLEVERTEXATTRIBARRAYARBPROC glEnableVertexAttribArrayARB;
PFNGLGETATTRIBLOCATIONARBPROC glGetAttribLocationARB;
PFNGLGETINFOLOGARBPROC glGetInfoLogARB;
PFNGLGETOBJECTPARAMETERIVARBPROC glGetObjectParameterivARB;
PFNGLGETUNIFORMLOCATIONARBPROC glGetUniformLocationARB;
PFNGLLINKPROGRAMARBPROC glLinkProgramARB;
PFNGLSHADERSOURCEARBPROC glShaderSourceARB;
PFNGLUNIFORM1IARBPROC glUniform1iARB;
PFNGLUNIFORM1IVARBPROC glUniform1ivARB;
PFNGLUNIFORM4FVARBPROC glUniform4fvARB;
PFNGLUNIFORM4IVARBPROC glUniform4ivARB;
PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObjectARB;
PFNGLVERTEXATTRIBPOINTERARBPROC glVertexAttribPointerARB;
257
PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
258
PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB;
259
PFNGLPROGRAMLOCALPARAMETERI4IVNVPROC glProgramLocalParameterI4ivNV;
260
261
262
263
PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB;
PFNGLGENPROGRAMSARBPROC glGenProgramsARB;
PFNGLBINDPROGRAMARBPROC glBindProgramARB;
PFNGLPROGRAMSTRINGARBPROC glProgramStringARB;
264
PFNGLVERTEXATTRIBDIVISORARBPROC glVertexAttribDivisorARB;
265
266
267
// interface for profile-specific things.
int (*profileMaxUniforms)(MOJOSHADER_shaderType shader_type);
268
int (*profileCompileShader)(const MOJOSHADER_parseData *pd, GLuint *s);
269
270
void (*profileDeleteShader)(const GLuint shader);
void (*profileDeleteProgram)(const GLuint program);
271
GLint (*profileGetAttribLocation)(MOJOSHADER_glProgram *program, int idx);
272
GLint (*profileGetUniformLocation)(MOJOSHADER_glProgram *program, MOJOSHADER_glShader *shader, int idx);
273
GLint (*profileGetSamplerLocation)(MOJOSHADER_glProgram *, MOJOSHADER_glShader *, int);
274
GLuint (*profileLinkProgram)(MOJOSHADER_glShader *, MOJOSHADER_glShader *);
275
void (*profileFinalInitProgram)(MOJOSHADER_glProgram *program);
276
void (*profileUseProgram)(MOJOSHADER_glProgram *program);
277
278
279
void (*profilePushConstantArray)(MOJOSHADER_glProgram *, const MOJOSHADER_uniform *, const GLfloat *);
void (*profilePushUniforms)(void);
void (*profilePushSampler)(GLint loc, GLuint sampler);
280
281
int (*profileMustPushConstantArrays)(void);
int (*profileMustPushSamplers)(void);
282
283
};
284
285
static MOJOSHADER_glContext *ctx = NULL;
286
287
288
289
290
291
292
293
294
// Error state...
static char error_buffer[1024] = { '\0' };
static void set_error(const char *str)
{
snprintf(error_buffer, sizeof (error_buffer), "%s", str);
} // set_error
295
296
297
298
299
300
301
302
#if PLATFORM_MACOSX
static inline int macosx_version_atleast(int x, int y, int z)
{
static int checked = 0;
static int combined = 0;
if (!checked)
{
303
304
305
306
SInt32 ver = 0;
SInt32 major = 0;
SInt32 minor = 0;
SInt32 patch = 0;
307
308
309
int convert = 0;
if (Gestalt(gestaltSystemVersion, &ver) != noErr)
310
{
311
ver = 0x1000; // oh well.
312
313
convert = 1; // split (ver) into (major),(minor),(patch).
}
314
else if (ver < 0x1030)
315
{
316
convert = 1; // split (ver) into (major),(minor),(patch).
317
}
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
else
{
// presumably this won't fail. But if it does, we'll just use the
// original version value. This might cut the value--10.12.11 will
// come out to 10.9.9, for example--but it's better than nothing.
if (Gestalt(gestaltSystemVersionMajor, &major) != noErr)
convert = 1;
else if (Gestalt(gestaltSystemVersionMinor, &minor) != noErr)
convert = 1;
else if (Gestalt(gestaltSystemVersionBugFix, &patch) != noErr)
convert = 1;
} // else
if (convert)
{
major = ((ver & 0xFF00) >> 8);
major = (((major / 16) * 10) + (major % 16));
minor = ((ver & 0xF0) >> 4);
patch = (ver & 0xF);
337
} // if
338
339
340
341
342
combined = (major << 16) | (minor << 8) | patch;
checked = 1;
} // if
343
return (combined >= ((x << 16) | (y << 8) | z));
344
345
346
} // macosx_version_atleast
#endif
347
348
349
350
static inline void out_of_memory(void)
{
set_error("out of memory");
} // out_of_memory
351
352
353
static inline void *Malloc(const size_t len)
{
354
void *retval = ctx->malloc_fn((int) len, ctx->malloc_data);
355
if (retval == NULL)
356
out_of_memory();
357
return retval;
358
359
360
361
} // Malloc
static inline void Free(void *ptr)
{
362
if (ptr != NULL)
363
ctx->free_fn(ptr, ctx->malloc_data);
364
365
366
} // Free
367
368
369
370
371
372
373
374
375
static inline void toggle_gl_state(GLenum state, int val)
{
if (val)
ctx->glEnable(state);
else
ctx->glDisable(state);
} // toggle_gl_state
376
377
378
379
380
// profile-specific implementations...
#if SUPPORT_PROFILE_GLSL
static inline GLenum glsl_shader_type(const MOJOSHADER_shaderType t)
{
381
// these enums match between core 2.0 and the ARB extensions.
382
383
384
385
386
387
388
389
390
391
if (t == MOJOSHADER_TYPE_VERTEX)
return GL_VERTEX_SHADER;
else if (t == MOJOSHADER_TYPE_PIXEL)
return GL_FRAGMENT_SHADER;
// !!! FIXME: geometry shaders?
return GL_NONE;
} // glsl_shader_type
392
393
static int impl_GLSL_MustPushConstantArrays(void) { return 1; }
static int impl_GLSL_MustPushSamplers(void) { return 1; }
394
395
396
static int impl_GLSL_MaxUniforms(MOJOSHADER_shaderType shader_type)
{
397
// these enums match between core 2.0 and the ARB extensions.
398
399
400
GLenum pname = GL_NONE;
GLint val = 0;
if (shader_type == MOJOSHADER_TYPE_VERTEX)
401
pname = GL_MAX_VERTEX_UNIFORM_COMPONENTS;
402
else if (shader_type == MOJOSHADER_TYPE_PIXEL)
403
pname = GL_MAX_FRAGMENT_UNIFORM_COMPONENTS;
404
405
406
407
408
409
410
411
412
413
414
else
return -1;
ctx->glGetIntegerv(pname, &val);
return (int) val;
} // impl_GLSL_MaxUniforms
static int impl_GLSL_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s)
{
GLint ok = 0;
415
const GLint codelen = (GLint) pd->output_len;
416
417
const GLenum shader_type = glsl_shader_type(pd->shader_type);
418
if (ctx->have_opengl_2)
419
{
420
421
422
423
424
425
426
const GLuint shader = ctx->glCreateShader(shader_type);
ctx->glShaderSource(shader, 1, (const GLchar**) &pd->output, &codelen);
ctx->glCompileShader(shader);
ctx->glGetShaderiv(shader, GL_COMPILE_STATUS, &ok);
if (!ok)
{
GLsizei len = 0;
427
ctx->glGetShaderInfoLog(shader, sizeof (error_buffer), &len,
428
(GLchar *) error_buffer);
429
ctx->glDeleteShader(shader);
430
431
432
433
434
*s = 0;
return 0;
} // if
*s = shader;
435
} // if
436
437
438
439
440
441
442
443
444
445
446
447
448
else
{
const GLhandleARB shader = ctx->glCreateShaderObjectARB(shader_type);
assert(sizeof (shader) == sizeof (*s)); // not always true on OS X!
ctx->glShaderSourceARB(shader, 1,
(const GLcharARB **) &pd->output, &codelen);
ctx->glCompileShaderARB(shader);
ctx->glGetObjectParameterivARB(shader,GL_OBJECT_COMPILE_STATUS_ARB,&ok);
if (!ok)
{
GLsizei len = 0;
ctx->glGetInfoLogARB(shader, sizeof (error_buffer), &len,
(GLcharARB *) error_buffer);
449
ctx->glDeleteObjectARB(shader);
450
451
452
453
454
455
*s = 0;
return 0;
} // if
*s = (GLuint) shader;
} // else
456
457
458
459
460
461
462
return 1;
} // impl_GLSL_CompileShader
static void impl_GLSL_DeleteShader(const GLuint shader)
{
463
464
465
466
if (ctx->have_opengl_2)
ctx->glDeleteShader(shader);
else
ctx->glDeleteObjectARB((GLhandleARB) shader);
467
468
469
470
471
} // impl_GLSL_DeleteShader
static void impl_GLSL_DeleteProgram(const GLuint program)
{
472
473
474
475
if (ctx->have_opengl_2)
ctx->glDeleteProgram(program);
else
ctx->glDeleteObjectARB((GLhandleARB) program);
476
477
478
479
480
481
} // impl_GLSL_DeleteProgram
static GLint impl_GLSL_GetUniformLocation(MOJOSHADER_glProgram *program,
MOJOSHADER_glShader *shader, int idx)
{
482
return 0; // no-op, we push this as one big-ass array now.
483
484
485
} // impl_GLSL_GetUniformLocation
486
487
488
489
490
491
492
493
494
static inline GLint glsl_uniform_loc(MOJOSHADER_glProgram *program,
const char *name)
{
return ctx->have_opengl_2 ?
ctx->glGetUniformLocation(program->handle, name) :
ctx->glGetUniformLocationARB((GLhandleARB) program->handle, name);
} // glsl_uniform_loc
495
496
497
static GLint impl_GLSL_GetSamplerLocation(MOJOSHADER_glProgram *program,
MOJOSHADER_glShader *shader, int idx)
{
498
return glsl_uniform_loc(program, shader->parseData->samplers[idx].name);
499
500
501
502
503
504
505
} // impl_GLSL_GetSamplerLocation
static GLint impl_GLSL_GetAttribLocation(MOJOSHADER_glProgram *program, int idx)
{
const MOJOSHADER_parseData *pd = program->vertex->parseData;
const MOJOSHADER_attribute *a = pd->attributes;
506
507
508
509
510
511
512
513
514
if (ctx->have_opengl_2)
{
return ctx->glGetAttribLocation(program->handle,
(const GLchar *) a[idx].name);
} // if
return ctx->glGetAttribLocationARB((GLhandleARB) program->handle,
(const GLcharARB *) a[idx].name);
515
516
517
518
519
520
} // impl_GLSL_GetAttribLocation
static GLuint impl_GLSL_LinkProgram(MOJOSHADER_glShader *vshader,
MOJOSHADER_glShader *pshader)
{
521
GLint ok = 0;
522
523
524
525
if (ctx->have_opengl_2)
{
const GLuint program = ctx->glCreateProgram();
526
527
528
if (vshader != NULL) ctx->glAttachShader(program, vshader->handle);
if (pshader != NULL) ctx->glAttachShader(program, pshader->handle);
529
530
531
532
533
534
535
536
537
538
539
540
541
542
ctx->glLinkProgram(program);
ctx->glGetProgramiv(program, GL_LINK_STATUS, &ok);
if (!ok)
{
GLsizei len = 0;
ctx->glGetProgramInfoLog(program, sizeof (error_buffer),
&len, (GLchar *) error_buffer);
ctx->glDeleteProgram(program);
return 0;
} // if
return program;
543
} // if
544
545
546
547
else
{
const GLhandleARB program = ctx->glCreateProgramObjectARB();
assert(sizeof(program) == sizeof(GLuint)); // not always true on OS X!
548
549
550
if (vshader != NULL)
ctx->glAttachObjectARB(program, (GLhandleARB) vshader->handle);
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
if (pshader != NULL)
ctx->glAttachObjectARB(program, (GLhandleARB) pshader->handle);
ctx->glLinkProgramARB(program);
ctx->glGetObjectParameterivARB(program, GL_OBJECT_LINK_STATUS_ARB, &ok);
if (!ok)
{
GLsizei len = 0;
ctx->glGetInfoLogARB(program, sizeof (error_buffer),
&len, (GLcharARB *) error_buffer);
ctx->glDeleteObjectARB(program);
return 0;
} // if
return (GLuint) program;
} // else
} // impl_GLSL_LinkProgram
570
571
static void impl_GLSL_FinalInitProgram(MOJOSHADER_glProgram *program)
572
{
573
574
575
576
577
578
579
program->vs_float4_loc = glsl_uniform_loc(program, "vs_uniforms_vec4");
program->vs_int4_loc = glsl_uniform_loc(program, "vs_uniforms_ivec4");
program->vs_bool_loc = glsl_uniform_loc(program, "vs_uniforms_bool");
program->ps_float4_loc = glsl_uniform_loc(program, "ps_uniforms_vec4");
program->ps_int4_loc = glsl_uniform_loc(program, "ps_uniforms_ivec4");
program->ps_bool_loc = glsl_uniform_loc(program, "ps_uniforms_bool");
580
581
582
#ifdef MOJOSHADER_FLIP_RENDERTARGET
program->vs_flip_loc = glsl_uniform_loc(program, "vpFlip");
#endif
583
} // impl_GLSL_FinalInitProgram
584
585
586
static void impl_GLSL_UseProgram(MOJOSHADER_glProgram *program)
587
{
588
589
590
591
592
if (ctx->have_opengl_2)
ctx->glUseProgram(program ? program->handle : 0);
else
ctx->glUseProgramObjectARB((GLhandleARB) (program ? program->handle : 0));
} // impl_GLSL_UseProgram
593
594
595
596
597
static void impl_GLSL_PushConstantArray(MOJOSHADER_glProgram *program,
const MOJOSHADER_uniform *u,
const GLfloat *f)
598
{
599
const GLint loc = glsl_uniform_loc(program, u->name);
600
if (loc >= 0) // not optimized out?
601
602
ctx->glUniform4fv(loc, u->array_count, f);
} // impl_GLSL_PushConstantArray
603
604
605
static void impl_GLSL_PushUniforms(void)
606
{
607
const MOJOSHADER_glProgram *program = ctx->bound_program;
608
609
610
assert(program->uniform_count > 0); // don't call with nothing to do!
611
612
613
614
615
616
if (program->vs_float4_loc != -1)
{
ctx->glUniform4fv(program->vs_float4_loc,
program->vs_uniforms_float4_count,
program->vs_uniforms_float4);
} // if
617
618
619
620
621
622
623
if (program->vs_int4_loc != -1)
{
ctx->glUniform4iv(program->vs_int4_loc,
program->vs_uniforms_int4_count,
program->vs_uniforms_int4);
} // if
624
625
626
627
628
629
630
if (program->vs_bool_loc != -1)
{
ctx->glUniform1iv(program->vs_bool_loc,
program->vs_uniforms_bool_count,
program->vs_uniforms_bool);
} // if
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
if (program->ps_float4_loc != -1)
{
ctx->glUniform4fv(program->ps_float4_loc,
program->ps_uniforms_float4_count,
program->ps_uniforms_float4);
} // if
if (program->ps_int4_loc != -1)
{
ctx->glUniform4iv(program->ps_int4_loc,
program->ps_uniforms_int4_count,
program->ps_uniforms_int4);
} // if
if (program->ps_bool_loc != -1)
{
ctx->glUniform1iv(program->ps_bool_loc,
program->ps_uniforms_bool_count,
program->ps_uniforms_bool);
} // if
} // impl_GLSL_PushUniforms
static void impl_GLSL_PushSampler(GLint loc, GLuint sampler)
656
657
{
ctx->glUniform1i(loc, sampler);
658
} // impl_GLSL_PushSampler
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
#endif // SUPPORT_PROFILE_GLSL
#if SUPPORT_PROFILE_ARB1
static inline GLenum arb1_shader_type(const MOJOSHADER_shaderType t)
{
if (t == MOJOSHADER_TYPE_VERTEX)
return GL_VERTEX_PROGRAM_ARB;
else if (t == MOJOSHADER_TYPE_PIXEL)
return GL_FRAGMENT_PROGRAM_ARB;
// !!! FIXME: geometry shaders?
return GL_NONE;
} // arb1_shader_type
675
676
static int impl_ARB1_MustPushConstantArrays(void) { return 0; }
static int impl_ARB1_MustPushSamplers(void) { return 0; }
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
static int impl_ARB1_MaxUniforms(MOJOSHADER_shaderType shader_type)
{
GLint retval = 0;
const GLenum program_type = arb1_shader_type(shader_type);
if (program_type == GL_NONE)
return -1;
ctx->glGetProgramivARB(program_type, GL_MAX_PROGRAM_PARAMETERS_ARB, &retval);
return (int) retval; // !!! FIXME: times four?
} // impl_ARB1_MaxUniforms
static int impl_ARB1_CompileShader(const MOJOSHADER_parseData *pd, GLuint *s)
{
GLint shaderlen = (GLint) pd->output_len;
const GLenum shader_type = arb1_shader_type(pd->shader_type);
GLuint shader = 0;
ctx->glGenProgramsARB(1, &shader);
ctx->glGetError(); // flush any existing error state.
ctx->glBindProgramARB(shader_type, shader);
ctx->glProgramStringARB(shader_type, GL_PROGRAM_FORMAT_ASCII_ARB,
shaderlen, pd->output);
if (ctx->glGetError() == GL_INVALID_OPERATION)
{
GLint pos = 0;
ctx->glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &pos);
const GLubyte *errstr = ctx->glGetString(GL_PROGRAM_ERROR_STRING_ARB);
snprintf(error_buffer, sizeof (error_buffer),
"ARB1 compile error at position %d: %s",
(int) pos, (const char *) errstr);
ctx->glBindProgramARB(shader_type, 0);
ctx->glDeleteProgramsARB(1, &shader);
*s = 0;
return 0;
} // if
*s = shader;
return 1;
} // impl_ARB1_CompileShader
static void impl_ARB1_DeleteShader(const GLuint _shader)
{
GLuint shader = _shader; // const removal.
ctx->glDeleteProgramsARB(1, &shader);
} // impl_ARB1_DeleteShader
static void impl_ARB1_DeleteProgram(const GLuint program)
{
// no-op. ARB1 doesn't have real linked programs.
731
} // impl_ARB1_DeleteProgram
732
733
734
735
static GLint impl_ARB1_GetUniformLocation(MOJOSHADER_glProgram *program,
MOJOSHADER_glShader *shader, int idx)
{
736
return 0; // no-op, we push this as one big-ass array now.
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
} // impl_ARB1_GetUniformLocation
static GLint impl_ARB1_GetSamplerLocation(MOJOSHADER_glProgram *program,
MOJOSHADER_glShader *shader, int idx)
{
return shader->parseData->samplers[idx].index;
} // impl_ARB1_GetSamplerLocation
static GLint impl_ARB1_GetAttribLocation(MOJOSHADER_glProgram *program, int idx)
{
return idx; // map to vertex arrays in the same order as the parseData.
} // impl_ARB1_GetAttribLocation
static GLuint impl_ARB1_LinkProgram(MOJOSHADER_glShader *vshader,
MOJOSHADER_glShader *pshader)
{
// there is no formal linking in ARB1...just return a unique value.
static GLuint retval = 1;
return retval++;
} // impl_ARB1_LinkProgram
761
static void impl_ARB1_FinalInitProgram(MOJOSHADER_glProgram *program)
762
763
{
// no-op.
764
} // impl_ARB1_FinalInitProgram
765
766
767
static void impl_ARB1_UseProgram(MOJOSHADER_glProgram *program)
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
{
GLuint vhandle = 0;
GLuint phandle = 0;
if (program != NULL)
{
if (program->vertex != NULL)
vhandle = program->vertex->handle;
if (program->fragment != NULL)
phandle = program->fragment->handle;
} // if
toggle_gl_state(GL_VERTEX_PROGRAM_ARB, vhandle != 0);
toggle_gl_state(GL_FRAGMENT_PROGRAM_ARB, phandle != 0);
ctx->glBindProgramARB(GL_VERTEX_PROGRAM_ARB, vhandle);
ctx->glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, phandle);
784
} // impl_ARB1_UseProgram
785
786
787
788
789
static void impl_ARB1_PushConstantArray(MOJOSHADER_glProgram *program,
const MOJOSHADER_uniform *u,
const GLfloat *f)
790
{
791
792
// no-op. Constant arrays are defined in source code for arb1.
} // impl_ARB1_PushConstantArray
793
794
795
static void impl_ARB1_PushUniforms(void)
796
{
797
798
799
// vertex shader uniforms come first in program->uniforms array.
MOJOSHADER_shaderType shader_type = MOJOSHADER_TYPE_VERTEX;
GLenum arb_shader_type = arb1_shader_type(shader_type);
800
const MOJOSHADER_glProgram *program = ctx->bound_program;
801
802
803
804
805
const uint32 count = program->uniform_count;
const GLfloat *srcf = program->vs_uniforms_float4;
const GLint *srci = program->vs_uniforms_int4;
const GLint *srcb = program->vs_uniforms_bool;
GLint loc = 0;
806
GLint texbem_loc = 0;
807
uint32 i;
808
809
810
assert(count > 0); // shouldn't call this with nothing to do!
811
812
for (i = 0; i < count; i++)
{
813
UniformMap *map = &program->uniforms[i];
814
const MOJOSHADER_shaderType uniform_shader_type = map->shader_type;
815
816
817
const MOJOSHADER_uniform *u = map->uniform;
const MOJOSHADER_uniformType type = u->type;
const int size = u->array_count ? u->array_count : 1;
818
819
assert(!u->constant);
820
821
// Did we switch from vertex to pixel (to geometry, etc)?
822
if (shader_type != uniform_shader_type)
823
{
824
825
826
if (shader_type == MOJOSHADER_TYPE_PIXEL)
texbem_loc = loc;
827
828
// we start with vertex, move to pixel, then to geometry, etc.
// The array should always be sorted as such.
829
if (uniform_shader_type == MOJOSHADER_TYPE_PIXEL)
830
{
831
assert(shader_type == MOJOSHADER_TYPE_VERTEX);
832
833
834
835
836
837
838
srcf = program->ps_uniforms_float4;
srci = program->ps_uniforms_int4;
srcb = program->ps_uniforms_bool;
loc = 0;
} // if
else
{
839
// These should be ordered vertex, then pixel, then geometry.
840
841
assert(0 && "Unexpected shader type");
} // else
842
843
844
shader_type = uniform_shader_type;
arb_shader_type = arb1_shader_type(uniform_shader_type);
845
} // if
846
847
848
849
if (type == MOJOSHADER_UNIFORM_FLOAT)
{
int i;
850
851
for (i = 0; i < size; i++, srcf += 4, loc++)
ctx->glProgramLocalParameter4fvARB(arb_shader_type, loc, srcf);
852
853
854
855
} // if
else if (type == MOJOSHADER_UNIFORM_INT)
{
int i;
856
if (ctx->have_GL_NV_gpu_program4)
857
858
{
// GL_NV_gpu_program4 has integer uniform loading support.
859
860
for (i = 0; i < size; i++, srci += 4, loc++)
ctx->glProgramLocalParameterI4ivNV(arb_shader_type, loc, srci);
861
862
863
} // if
else
{
864
for (i = 0; i < size; i++, srci += 4, loc++)
865
{
866
867
868
869
870
const GLfloat fv[4] = {
(GLfloat) srci[0], (GLfloat) srci[1],
(GLfloat) srci[2], (GLfloat) srci[3]
};
ctx->glProgramLocalParameter4fvARB(arb_shader_type, loc, fv);
871
872
873
874
875
876
} // for
} // else
} // else if
else if (type == MOJOSHADER_UNIFORM_BOOL)
{
int i;
877
if (ctx->have_GL_NV_gpu_program4)
878
879
{
// GL_NV_gpu_program4 has integer uniform loading support.
880
for (i = 0; i < size; i++, srcb++, loc++)
881
{
882
const GLint ib = (GLint) ((*srcb) ? 1 : 0);
883
const GLint iv[4] = { ib, ib, ib, ib };
884
ctx->glProgramLocalParameterI4ivNV(arb_shader_type, loc, iv);
885
886
887
888
} // for
} // if
else
{
889
for (i = 0; i < size; i++, srcb++, loc++)
890
{
891
const GLfloat fb = (GLfloat) ((*srcb) ? 1.0f : 0.0f);
892
const GLfloat fv[4] = { fb, fb, fb, fb };
893
ctx->glProgramLocalParameter4fvARB(arb_shader_type, loc, fv);
894
895
896
897
} // for
} // else
} // else if
} // for
898
899
900
901
902
903
904
905
906
907
908
909
910
911
if (program->texbem_count)
{
const GLenum target = GL_FRAGMENT_PROGRAM_ARB;
GLfloat *srcf = program->ps_uniforms_float4;
srcf += (program->ps_uniforms_float4_count * 4) -
(program->texbem_count * 8);
loc = texbem_loc;
for (i = 0; i < program->texbem_count; i++, srcf += 8)
{
ctx->glProgramLocalParameter4fvARB(target, loc++, srcf);
ctx->glProgramLocalParameter4fvARB(target, loc++, srcf + 4);
} // for
} // if
912
} // impl_ARB1_PushUniforms
913
914
static void impl_ARB1_PushSampler(GLint loc, GLuint sampler)
915
916
917
{
// no-op in this profile...arb1 uses the texture units as-is.
assert(loc == (GLint) sampler);
918
} // impl_ARB1_PushSampler
919
920
921
922
923
924
925
926
927
928
#endif // SUPPORT_PROFILE_ARB1
const char *MOJOSHADER_glGetError(void)
{
return error_buffer;
} // MOJOSHADER_glGetError
929
930
static void *loadsym(MOJOSHADER_glGetProcAddress lookup, void *d,
const char *fn, int *ext)
931
932
933
{
void *retval = NULL;
if (lookup != NULL)
934
retval = lookup(fn, d);
935
936
937
938
939
940
941
if (retval == NULL)
*ext = 0;
return retval;
} // loadsym
942
static void lookup_entry_points(MOJOSHADER_glGetProcAddress lookup, void *d)
943
{
944
#define DO_LOOKUP(ext, typ, fn) { \
945
ctx->fn = (typ) loadsym(lookup, d, #fn, &ctx->have_##ext); \
946
947
}
948
949
950
951
952
DO_LOOKUP(core_opengl, PFNGLGETSTRINGPROC, glGetString);
DO_LOOKUP(core_opengl, PFNGLGETERRORPROC, glGetError);
DO_LOOKUP(core_opengl, PFNGLGETINTEGERVPROC, glGetIntegerv);
DO_LOOKUP(core_opengl, PFNGLENABLEPROC, glEnable);
DO_LOOKUP(core_opengl, PFNGLDISABLEPROC, glDisable);
953
DO_LOOKUP(opengl_3, PFNGLGETSTRINGIPROC, glGetStringi);
954
955
956
957
958
959
960
961
962
963
DO_LOOKUP(opengl_2, PFNGLDELETESHADERPROC, glDeleteShader);
DO_LOOKUP(opengl_2, PFNGLDELETEPROGRAMPROC, glDeleteProgram);
DO_LOOKUP(opengl_2, PFNGLATTACHSHADERPROC, glAttachShader);
DO_LOOKUP(opengl_2, PFNGLCOMPILESHADERPROC, glCompileShader);
DO_LOOKUP(opengl_2, PFNGLCREATESHADERPROC, glCreateShader);
DO_LOOKUP(opengl_2, PFNGLCREATEPROGRAMPROC, glCreateProgram);
DO_LOOKUP(opengl_2, PFNGLDISABLEVERTEXATTRIBARRAYPROC, glDisableVertexAttribArray);
DO_LOOKUP(opengl_2, PFNGLENABLEVERTEXATTRIBARRAYPROC, glEnableVertexAttribArray);
DO_LOOKUP(opengl_2, PFNGLGETATTRIBLOCATIONPROC, glGetAttribLocation);
DO_LOOKUP(opengl_2, PFNGLGETPROGRAMINFOLOGPROC, glGetProgramInfoLog);
964
DO_LOOKUP(opengl_2, PFNGLGETSHADERINFOLOGPROC, glGetShaderInfoLog);
965
966
967
968
969
970
971
DO_LOOKUP(opengl_2, PFNGLGETSHADERIVPROC, glGetShaderiv);
DO_LOOKUP(opengl_2, PFNGLGETPROGRAMIVPROC, glGetProgramiv);
DO_LOOKUP(opengl_2, PFNGLGETUNIFORMLOCATIONPROC, glGetUniformLocation);
DO_LOOKUP(opengl_2, PFNGLLINKPROGRAMPROC, glLinkProgram);
DO_LOOKUP(opengl_2, PFNGLSHADERSOURCEPROC, glShaderSource);
DO_LOOKUP(opengl_2, PFNGLUNIFORM1IPROC, glUniform1i);
DO_LOOKUP(opengl_2, PFNGLUNIFORM1IVPROC, glUniform1iv);
972
973
974
#ifdef MOJOSHADER_FLIP_RENDERTARGET
DO_LOOKUP(opengl_2, PFNGLUNIFORM1FPROC, glUniform1f);
#endif
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
DO_LOOKUP(opengl_2, PFNGLUNIFORM4FVPROC, glUniform4fv);
DO_LOOKUP(opengl_2, PFNGLUNIFORM4IVPROC, glUniform4iv);
DO_LOOKUP(opengl_2, PFNGLUSEPROGRAMPROC, glUseProgram);
DO_LOOKUP(opengl_2, PFNGLVERTEXATTRIBPOINTERPROC, glVertexAttribPointer);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLDELETEOBJECTARBPROC, glDeleteObjectARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLATTACHOBJECTARBPROC, glAttachObjectARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLCOMPILESHADERARBPROC, glCompileShaderARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLCREATEPROGRAMOBJECTARBPROC, glCreateProgramObjectARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLCREATESHADEROBJECTARBPROC, glCreateShaderObjectARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETINFOLOGARBPROC, glGetInfoLogARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETOBJECTPARAMETERIVARBPROC, glGetObjectParameterivARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLGETUNIFORMLOCATIONARBPROC, glGetUniformLocationARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLLINKPROGRAMARBPROC, glLinkProgramARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLSHADERSOURCEARBPROC, glShaderSourceARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM1IARBPROC, glUniform1iARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM1IVARBPROC, glUniform1ivARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM4FVARBPROC, glUniform4fvARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLUNIFORM4IVARBPROC, glUniform4ivARB);
DO_LOOKUP(GL_ARB_shader_objects, PFNGLUSEPROGRAMOBJECTARBPROC, glUseProgramObjectARB);
DO_LOOKUP(GL_ARB_vertex_shader, PFNGLDISABLEVERTEXATTRIBARRAYARBPROC, glDisableVertexAttribArrayARB);
DO_LOOKUP(GL_ARB_vertex_shader, PFNGLENABLEVERTEXATTRIBARRAYARBPROC, glEnableVertexAttribArrayARB);
DO_LOOKUP(GL_ARB_vertex_shader, PFNGLGETATTRIBLOCATIONARBPROC, glGetAttribLocationARB);
DO_LOOKUP(GL_ARB_vertex_shader, PFNGLVERTEXATTRIBPOINTERARBPROC, glVertexAttribPointerARB);
DO_LOOKUP(GL_ARB_vertex_program, PFNGLVERTEXATTRIBPOINTERARBPROC, glVertexAttribPointerARB);
999
DO_LOOKUP(GL_ARB_vertex_program, PFNGLGETPROGRAMIVARBPROC, glGetProgramivARB);
1000
DO_LOOKUP(GL_ARB_vertex_program, PFNGLPROGRAMLOCALPARAMETER4FVARBPROC, glProgramLocalParameter4fvARB);