diff options
author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2009-10-19 14:10:05 +0400 |
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committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2009-10-19 14:10:05 +0400 |
commit | e2fa58f7f3cceb89fd248d5361d875224e62de38 (patch) | |
tree | 93e12f3b08ff272b48addd54d207e75a4f47b2c0 /source/blender/gpu/intern/gpu_extensions.c | |
parent | 2c985dee976eb5b3ee6729312f046a344cb9947c (diff) |
Fix #19669 and other: triple buffer & icon texture drawing could cause
a system crash and other issues on ATI/Apple, due to a buggy driver
(similar issues reported for other OpenGL applications). For now, work
around it by not using non-power-of-two textures on this combination.
Diffstat (limited to 'source/blender/gpu/intern/gpu_extensions.c')
-rw-r--r-- | source/blender/gpu/intern/gpu_extensions.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/source/blender/gpu/intern/gpu_extensions.c b/source/blender/gpu/intern/gpu_extensions.c index 55e4b337a77..52a6b0dd1e8 100644 --- a/source/blender/gpu/intern/gpu_extensions.c +++ b/source/blender/gpu/intern/gpu_extensions.c @@ -69,7 +69,7 @@ static struct GPUGlobal { GLint maxtextures; GLuint currentfb; - int minimumsupport; + int glslsupport; int extdisabled; } GG = {1, 0, 0, 0}; @@ -87,15 +87,27 @@ void GPU_extensions_init() if (GLEW_ARB_multitexture) glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS_ARB, &GG.maxtextures); - GG.minimumsupport = 1; - if (!GLEW_ARB_multitexture) GG.minimumsupport = 0; - if (!GLEW_ARB_vertex_shader) GG.minimumsupport = 0; - if (!GLEW_ARB_fragment_shader) GG.minimumsupport = 0; + GG.glslsupport = 1; + if (!GLEW_ARB_multitexture) GG.glslsupport = 0; + if (!GLEW_ARB_vertex_shader) GG.glslsupport = 0; + if (!GLEW_ARB_fragment_shader) GG.glslsupport = 0; } -int GPU_extensions_minimum_support() +int GPU_glsl_support() { - return !GG.extdisabled && GG.minimumsupport; + return !GG.extdisabled && GG.glslsupport; +} + +int GPU_non_power_of_two_support() +{ + /* Exception for buggy ATI/Apple driver in Mac OS X 10.5/10.6, + * they claim to support this but can cause system freeze */ +#ifdef __APPLE__ + if(strcmp(glGetString(GL_VENDOR), "ATI Technologies Inc.") == 0) + return 0; +#endif + + return GLEW_ARB_texture_non_power_of_two; } int GPU_print_error(char *str) @@ -231,7 +243,7 @@ static GPUTexture *GPU_texture_create_nD(int w, int h, int n, float *fpixels, in return NULL; } - if (!GLEW_ARB_texture_non_power_of_two) { + if (!GPU_non_power_of_two_support()) { tex->w = larger_pow2(tex->w); tex->h = larger_pow2(tex->h); } @@ -337,7 +349,7 @@ GPUTexture *GPU_texture_create_3D(int w, int h, int depth, float *fpixels) return NULL; } - if (!GLEW_ARB_texture_non_power_of_two) { + if (!GPU_non_power_of_two_support()) { tex->w = larger_pow2(tex->w); tex->h = larger_pow2(tex->h); tex->depth = larger_pow2(tex->depth); |