1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup gpu
*
* Wrap OpenGL features such as textures, shaders and GLSL
* with checks for drivers and GPU support.
*/
#include "BLI_utildefines.h"
#include "BLI_math_base.h"
#include "BLI_math_vector.h"
#include "BKE_global.h"
#include "MEM_guardedalloc.h"
#include "GPU_extensions.h"
#include "GPU_framebuffer.h"
#include "GPU_glew.h"
#include "GPU_texture.h"
#include "intern/gpu_private.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef WIN32
# include "BLI_winstuff.h"
#endif
/* Extensions support */
/* -- extension: version of GL that absorbs it
* EXT_gpu_shader4: 3.0
* ARB_framebuffer object: 3.0
* EXT_framebuffer_multisample_blit_scaled: ???
* ARB_draw_instanced: 3.1
* ARB_texture_multisample: 3.2
* ARB_texture_query_lod: 4.0
*/
static struct GPUGlobal {
GLint maxtexsize;
GLint maxtexlayers;
GLint maxcubemapsize;
GLint maxtextures;
GLint maxtexturesfrag;
GLint maxtexturesgeom;
GLint maxtexturesvert;
GLint maxubosize;
GLint maxubobinds;
int samples_color_texture_max;
eGPUDeviceType device;
eGPUOSType os;
eGPUDriverType driver;
float line_width_range[2];
/* workaround for different calculation of dfdy factors on GPUs. Some GPUs/drivers
* calculate dfdy in shader differently when drawing to an offscreen buffer. First
* number is factor on screen and second is off-screen */
float dfdyfactors[2];
float max_anisotropy;
/* Some Intel drivers have limited support for `GLEW_ARB_base_instance` so in
* these cases it is best to indicate that it is not supported. See T67951 */
bool glew_arb_base_instance_is_supported;
/* Some Intel drivers have issues with using mips as framebuffer targets if
* GL_TEXTURE_MAX_LEVEL is higher than the target mip.
* We need a workaround in this cases. */
bool mip_render_workaround;
/* There is an issue with the glBlitFramebuffer on MacOS with radeon pro graphics.
* Blitting depth with GL_DEPTH24_STENCIL8 is buggy so the workaround is to use
* GPU_DEPTH32F_STENCIL8. Then Blitting depth will work but blitting stencil will
* still be broken. */
bool depth_blitting_workaround;
/* Crappy driver don't know how to map framebuffer slot to output vars...
* We need to have no "holes" in the output buffer slots. */
bool unused_fb_slot_workaround;
/* Some crappy Intel drivers don't work well with shaders created in different
* rendering contexts. */
bool context_local_shaders_workaround;
} GG = {1, 0};
static void gpu_detect_mip_render_workaround(void)
{
int cube_size = 2;
float *source_pix = MEM_callocN(sizeof(float) * 4 * 6 * cube_size * cube_size, __func__);
float clear_color[4] = {1.0f, 0.5f, 0.0f, 0.0f};
GPUTexture *tex = GPU_texture_create_cube(cube_size, GPU_RGBA16F, source_pix, NULL);
MEM_freeN(source_pix);
GPU_texture_bind(tex, 0);
GPU_texture_generate_mipmap(tex);
glTexParameteri(GPU_texture_target(tex), GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GPU_texture_target(tex), GL_TEXTURE_MAX_LEVEL, 0);
GPU_texture_unbind(tex);
GPUFrameBuffer *fb = GPU_framebuffer_create();
GPU_framebuffer_texture_attach(fb, tex, 0, 1);
GPU_framebuffer_bind(fb);
GPU_framebuffer_clear_color(fb, clear_color);
GPU_framebuffer_restore();
GPU_framebuffer_free(fb);
float *data = GPU_texture_read(tex, GPU_DATA_FLOAT, 1);
GG.mip_render_workaround = !equals_v4v4(clear_color, data);
MEM_freeN(data);
GPU_texture_free(tex);
}
/* GPU Types */
bool GPU_type_matches(eGPUDeviceType device, eGPUOSType os, eGPUDriverType driver)
{
return (GG.device & device) && (GG.os & os) && (GG.driver & driver);
}
/* GPU Extensions */
int GPU_max_texture_size(void)
{
return GG.maxtexsize;
}
int GPU_max_texture_layers(void)
{
return GG.maxtexlayers;
}
int GPU_max_textures(void)
{
return GG.maxtextures;
}
int GPU_max_textures_frag(void)
{
return GG.maxtexturesfrag;
}
int GPU_max_textures_geom(void)
{
return GG.maxtexturesgeom;
}
int GPU_max_textures_vert(void)
{
return GG.maxtexturesvert;
}
float GPU_max_texture_anisotropy(void)
{
return GG.max_anisotropy;
}
int GPU_max_color_texture_samples(void)
{
return GG.samples_color_texture_max;
}
int GPU_max_cube_map_size(void)
{
return GG.maxcubemapsize;
}
int GPU_max_ubo_binds(void)
{
return GG.maxubobinds;
}
int GPU_max_ubo_size(void)
{
return GG.maxubosize;
}
float GPU_max_line_width(void)
{
return GG.line_width_range[1];
}
void GPU_get_dfdy_factors(float fac[2])
{
copy_v2_v2(fac, GG.dfdyfactors);
}
bool GPU_arb_base_instance_is_supported(void)
{
return GG.glew_arb_base_instance_is_supported;
}
bool GPU_mip_render_workaround(void)
{
return GG.mip_render_workaround;
}
bool GPU_depth_blitting_workaround(void)
{
return GG.depth_blitting_workaround;
}
bool GPU_unused_fb_slot_workaround(void)
{
return GG.unused_fb_slot_workaround;
}
bool GPU_context_local_shaders_workaround(void)
{
return GG.context_local_shaders_workaround;
}
bool GPU_crappy_amd_driver(void)
{
/* Currently are the same drivers with the `unused_fb_slot` problem. */
return GPU_unused_fb_slot_workaround();
}
void gpu_extensions_init(void)
{
/* during 2.8 development each platform has its own OpenGL minimum requirements
* final 2.8 release will be unified on OpenGL 3.3 core profile, no required extensions
* see developer.blender.org/T49012 for details
*/
BLI_assert(GLEW_VERSION_3_3);
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &GG.maxtexturesfrag);
glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &GG.maxtexturesvert);
glGetIntegerv(GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS, &GG.maxtexturesgeom);
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &GG.maxtextures);
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &GG.maxtexsize);
glGetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS, &GG.maxtexlayers);
glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, &GG.maxcubemapsize);
if (GLEW_EXT_texture_filter_anisotropic) {
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &GG.max_anisotropy);
}
else {
GG.max_anisotropy = 1.0f;
}
glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_BLOCKS, &GG.maxubobinds);
glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &GG.maxubosize);
glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, GG.line_width_range);
glGetIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &GG.samples_color_texture_max);
const char *vendor = (const char *)glGetString(GL_VENDOR);
const char *renderer = (const char *)glGetString(GL_RENDERER);
const char *version = (const char *)glGetString(GL_VERSION);
if (strstr(vendor, "ATI") || strstr(vendor, "AMD")) {
GG.device = GPU_DEVICE_ATI;
GG.driver = GPU_DRIVER_OFFICIAL;
#ifdef _WIN32
if (strstr(version, "4.5.13399") || strstr(version, "4.5.13417") ||
strstr(version, "4.5.13422")) {
/* The renderers include:
* Mobility Radeon HD 5000;
* Radeon HD 7500M;
* Radeon HD 7570M;
* Radeon HD 7600M;
* And many others... */
GG.unused_fb_slot_workaround = true;
}
#endif
#if defined(__APPLE__)
if (strstr(renderer, "AMD Radeon Pro") || strstr(renderer, "AMD Radeon R9") ||
strstr(renderer, "AMD Radeon RX")) {
GG.depth_blitting_workaround = true;
}
#endif
}
else if (strstr(vendor, "NVIDIA")) {
GG.device = GPU_DEVICE_NVIDIA;
GG.driver = GPU_DRIVER_OFFICIAL;
}
else if (strstr(vendor, "Intel") ||
/* src/mesa/drivers/dri/intel/intel_context.c */
strstr(renderer, "Mesa DRI Intel") || strstr(renderer, "Mesa DRI Mobile Intel")) {
GG.device = GPU_DEVICE_INTEL;
GG.driver = GPU_DRIVER_OFFICIAL;
if (strstr(renderer, "UHD Graphics") ||
/* Not UHD but affected by the same bugs. */
strstr(renderer, "HD Graphics 530") || strstr(renderer, "Kaby Lake GT2")) {
GG.device |= GPU_DEVICE_INTEL_UHD;
}
}
else if ((strstr(renderer, "Mesa DRI R")) ||
(strstr(renderer, "Radeon") && strstr(vendor, "X.Org")) ||
(strstr(renderer, "Gallium ") && strstr(renderer, " on ATI ")) ||
(strstr(renderer, "Gallium ") && strstr(renderer, " on AMD "))) {
GG.device = GPU_DEVICE_ATI;
GG.driver = GPU_DRIVER_OPENSOURCE;
}
else if (strstr(renderer, "Nouveau") || strstr(vendor, "nouveau")) {
GG.device = GPU_DEVICE_NVIDIA;
GG.driver = GPU_DRIVER_OPENSOURCE;
}
else if (strstr(vendor, "Mesa")) {
GG.device = GPU_DEVICE_SOFTWARE;
GG.driver = GPU_DRIVER_SOFTWARE;
}
else if (strstr(vendor, "Microsoft")) {
GG.device = GPU_DEVICE_SOFTWARE;
GG.driver = GPU_DRIVER_SOFTWARE;
}
else if (strstr(renderer, "Apple Software Renderer")) {
GG.device = GPU_DEVICE_SOFTWARE;
GG.driver = GPU_DRIVER_SOFTWARE;
}
else if (strstr(renderer, "llvmpipe")) {
GG.device = GPU_DEVICE_SOFTWARE;
GG.driver = GPU_DRIVER_SOFTWARE;
}
else {
printf("Warning: Could not find a matching GPU name. Things may not behave as expected.\n");
printf("Detected OpenGL configuration:\n");
printf("Vendor: %s\n", vendor);
printf("Renderer: %s\n", renderer);
GG.device = GPU_DEVICE_ANY;
GG.driver = GPU_DRIVER_ANY;
}
#ifdef _WIN32
GG.os = GPU_OS_WIN;
#elif defined(__APPLE__)
GG.os = GPU_OS_MAC;
#else
GG.os = GPU_OS_UNIX;
#endif
GG.glew_arb_base_instance_is_supported = GLEW_ARB_base_instance;
gpu_detect_mip_render_workaround();
if (G.debug & G_DEBUG_GPU_FORCE_WORKAROUNDS) {
printf("\n");
printf("GPU: Bypassing workaround detection.\n");
printf("GPU: OpenGL identification strings\n");
printf("GPU: vendor: %s\n", vendor);
printf("GPU: renderer: %s\n", renderer);
printf("GPU: version: %s\n\n", version);
GG.mip_render_workaround = true;
GG.depth_blitting_workaround = true;
GG.unused_fb_slot_workaround = true;
GG.context_local_shaders_workaround = true;
}
/* df/dy calculation factors, those are dependent on driver */
if ((strstr(vendor, "ATI") && strstr(version, "3.3.10750"))) {
GG.dfdyfactors[0] = 1.0;
GG.dfdyfactors[1] = -1.0;
}
else if ((GG.device == GPU_DEVICE_INTEL) && (GG.os == GPU_OS_WIN)) {
if (strstr(version, "4.0.0 - Build 10.18.10.3308") ||
strstr(version, "4.0.0 - Build 9.18.10.3186") ||
strstr(version, "4.0.0 - Build 9.18.10.3165") ||
strstr(version, "3.1.0 - Build 9.17.10.3347") ||
strstr(version, "3.1.0 - Build 9.17.10.4101") ||
strstr(version, "3.3.0 - Build 8.15.10.2618")) {
GG.dfdyfactors[0] = -1.0;
GG.dfdyfactors[1] = 1.0;
}
else {
GG.dfdyfactors[0] = 1.0;
GG.dfdyfactors[1] = 1.0;
}
if (strstr(version, "Build 10.18.10.3379") || strstr(version, "Build 10.18.10.3574") ||
strstr(version, "Build 10.18.10.4252") || strstr(version, "Build 10.18.10.4358") ||
strstr(version, "Build 10.18.10.4653") || strstr(version, "Build 10.18.10.5069") ||
strstr(version, "Build 10.18.14.4264") || strstr(version, "Build 10.18.14.4432") ||
strstr(version, "Build 10.18.14.5067")) {
/* Maybe not all of these drivers have problems with `GLEW_ARB_base_instance`.
* But it's hard to test each case. */
GG.glew_arb_base_instance_is_supported = false;
GG.context_local_shaders_workaround = true;
}
}
GPU_invalid_tex_init();
}
void gpu_extensions_exit(void)
{
GPU_invalid_tex_free();
}
bool GPU_mem_stats_supported(void)
{
return (GLEW_NVX_gpu_memory_info || GLEW_ATI_meminfo) && (G.debug & G_DEBUG_GPU_MEM);
}
void GPU_mem_stats_get(int *totalmem, int *freemem)
{
/* TODO(merwin): use Apple's platform API to get this info */
if (GLEW_NVX_gpu_memory_info) {
/* returned value in Kb */
glGetIntegerv(GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, totalmem);
glGetIntegerv(GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, freemem);
}
else if (GLEW_ATI_meminfo) {
int stats[4];
glGetIntegerv(GL_TEXTURE_FREE_MEMORY_ATI, stats);
*freemem = stats[0];
*totalmem = 0;
}
else {
*totalmem = 0;
*freemem = 0;
}
}
|