diff options
Diffstat (limited to 'src/mesa/main/texstate.c')
-rw-r--r-- | src/mesa/main/texstate.c | 179 |
1 files changed, 71 insertions, 108 deletions
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c index 421f912849..20f9c4512c 100644 --- a/src/mesa/main/texstate.c +++ b/src/mesa/main/texstate.c @@ -62,31 +62,6 @@ static const struct gl_tex_env_combine_state default_combine_state = { }; -/** - * Copy a texture binding. Helper used by _mesa_copy_texture_state(). - */ -static void -copy_texture_binding(const GLcontext *ctx, - struct gl_texture_object **dst, - struct gl_texture_object *src) -{ - /* only copy if names differ (per OpenGL SI) */ - if ((*dst)->Name != src->Name) { - /* unbind/delete dest binding which we're changing */ - (*dst)->RefCount--; - if ((*dst)->RefCount == 0) { - /* time to delete this texture object */ - ASSERT((*dst)->Name != 0); - ASSERT(ctx->Driver.DeleteTexture); - /* XXX cast-away const, unfortunately */ - (*ctx->Driver.DeleteTexture)((GLcontext *) ctx, *dst); - } - /* make new binding, incrementing ref count */ - *dst = src; - src->RefCount++; - } -} - /** * Used by glXCopyContext to copy texture state from one context to another. @@ -143,20 +118,20 @@ _mesa_copy_texture_state( const GLcontext *src, GLcontext *dst ) /* copy texture object bindings, not contents of texture objects */ _mesa_lock_context_textures(dst); - copy_texture_binding(src, &dst->Texture.Unit[i].Current1D, - src->Texture.Unit[i].Current1D); - copy_texture_binding(src, &dst->Texture.Unit[i].Current2D, - src->Texture.Unit[i].Current2D); - copy_texture_binding(src, &dst->Texture.Unit[i].Current3D, - src->Texture.Unit[i].Current3D); - copy_texture_binding(src, &dst->Texture.Unit[i].CurrentCubeMap, - src->Texture.Unit[i].CurrentCubeMap); - copy_texture_binding(src, &dst->Texture.Unit[i].CurrentRect, - src->Texture.Unit[i].CurrentRect); - copy_texture_binding(src, &dst->Texture.Unit[i].Current1DArray, - src->Texture.Unit[i].Current1DArray); - copy_texture_binding(src, &dst->Texture.Unit[i].Current2DArray, - src->Texture.Unit[i].Current2DArray); + _mesa_reference_texobj(&dst->Texture.Unit[i].Current1D, + src->Texture.Unit[i].Current1D); + _mesa_reference_texobj(&dst->Texture.Unit[i].Current2D, + src->Texture.Unit[i].Current2D); + _mesa_reference_texobj(&dst->Texture.Unit[i].Current3D, + src->Texture.Unit[i].Current3D); + _mesa_reference_texobj(&dst->Texture.Unit[i].CurrentCubeMap, + src->Texture.Unit[i].CurrentCubeMap); + _mesa_reference_texobj(&dst->Texture.Unit[i].CurrentRect, + src->Texture.Unit[i].CurrentRect); + _mesa_reference_texobj(&dst->Texture.Unit[i].Current1DArray, + src->Texture.Unit[i].Current1DArray); + _mesa_reference_texobj(&dst->Texture.Unit[i].Current2DArray, + src->Texture.Unit[i].Current2DArray); _mesa_unlock_context_textures(dst); } @@ -699,52 +674,32 @@ _mesa_update_texture( GLcontext *ctx, GLuint new_state ) static GLboolean alloc_proxy_textures( GLcontext *ctx ) { - ctx->Texture.Proxy1D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_1D); - if (!ctx->Texture.Proxy1D) - goto cleanup; - - ctx->Texture.Proxy2D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_2D); - if (!ctx->Texture.Proxy2D) - goto cleanup; - - ctx->Texture.Proxy3D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_3D); - if (!ctx->Texture.Proxy3D) - goto cleanup; - - ctx->Texture.ProxyCubeMap = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_CUBE_MAP_ARB); - if (!ctx->Texture.ProxyCubeMap) - goto cleanup; - - ctx->Texture.ProxyRect = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_RECTANGLE_NV); - if (!ctx->Texture.ProxyRect) - goto cleanup; - - ctx->Texture.Proxy1DArray = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_1D_ARRAY_EXT); - if (!ctx->Texture.Proxy1DArray) - goto cleanup; - - ctx->Texture.Proxy2DArray = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_2D_ARRAY_EXT); - if (!ctx->Texture.Proxy2DArray) - goto cleanup; + static const GLenum targets[] = { + GL_TEXTURE_1D, + GL_TEXTURE_2D, + GL_TEXTURE_3D, + GL_TEXTURE_CUBE_MAP_ARB, + GL_TEXTURE_RECTANGLE_NV, + GL_TEXTURE_1D_ARRAY_EXT, + GL_TEXTURE_2D_ARRAY_EXT + }; + GLint tgt; + + ASSERT(Elements(targets) == NUM_TEXTURE_TARGETS); + + for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { + if (!(ctx->Texture.ProxyTex[tgt] + = ctx->Driver.NewTextureObject(ctx, 0, targets[tgt]))) { + /* out of memory, free what we did allocate */ + while (--tgt >= 0) { + ctx->Driver.DeleteTexture(ctx, ctx->Texture.ProxyTex[tgt]); + } + return GL_FALSE; + } + } + assert(ctx->Texture.ProxyTex[0]->RefCount == 1); /* sanity check */ return GL_TRUE; - - cleanup: - if (ctx->Texture.Proxy1D) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1D); - if (ctx->Texture.Proxy2D) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2D); - if (ctx->Texture.Proxy3D) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy3D); - if (ctx->Texture.ProxyCubeMap) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyCubeMap); - if (ctx->Texture.ProxyRect) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyRect); - if (ctx->Texture.Proxy1DArray) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1DArray); - if (ctx->Texture.Proxy2DArray) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2DArray); - return GL_FALSE; } @@ -786,13 +741,14 @@ init_texture_unit( GLcontext *ctx, GLuint unit ) ASSIGN_4V( texUnit->EyePlaneR, 0.0, 0.0, 0.0, 0.0 ); ASSIGN_4V( texUnit->EyePlaneQ, 0.0, 0.0, 0.0, 0.0 ); - texUnit->Current1D = ctx->Shared->Default1D; - texUnit->Current2D = ctx->Shared->Default2D; - texUnit->Current3D = ctx->Shared->Default3D; - texUnit->CurrentCubeMap = ctx->Shared->DefaultCubeMap; - texUnit->CurrentRect = ctx->Shared->DefaultRect; - texUnit->Current1DArray = ctx->Shared->Default1DArray; - texUnit->Current2DArray = ctx->Shared->Default2DArray; + /* initialize current texture object ptrs to the shared default objects */ + _mesa_reference_texobj(&texUnit->Current1D, ctx->Shared->Default1D); + _mesa_reference_texobj(&texUnit->Current2D, ctx->Shared->Default2D); + _mesa_reference_texobj(&texUnit->Current3D, ctx->Shared->Default3D); + _mesa_reference_texobj(&texUnit->CurrentCubeMap, ctx->Shared->DefaultCubeMap); + _mesa_reference_texobj(&texUnit->CurrentRect, ctx->Shared->DefaultRect); + _mesa_reference_texobj(&texUnit->Current1DArray, ctx->Shared->Default1DArray); + _mesa_reference_texobj(&texUnit->Current2DArray, ctx->Shared->Default2DArray); } @@ -807,25 +763,22 @@ _mesa_init_texture(GLcontext *ctx) assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS); assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS); - /* Effectively bind the default textures to all texture units */ - ctx->Shared->Default1D->RefCount += MAX_TEXTURE_UNITS; - ctx->Shared->Default2D->RefCount += MAX_TEXTURE_UNITS; - ctx->Shared->Default3D->RefCount += MAX_TEXTURE_UNITS; - ctx->Shared->DefaultCubeMap->RefCount += MAX_TEXTURE_UNITS; - ctx->Shared->DefaultRect->RefCount += MAX_TEXTURE_UNITS; - ctx->Shared->Default1DArray->RefCount += MAX_TEXTURE_UNITS; - ctx->Shared->Default2DArray->RefCount += MAX_TEXTURE_UNITS; - /* Texture group */ ctx->Texture.CurrentUnit = 0; /* multitexture */ ctx->Texture._EnabledUnits = 0; - for (i=0; i<MAX_TEXTURE_UNITS; i++) - init_texture_unit( ctx, i ); ctx->Texture.SharedPalette = GL_FALSE; #if FEATURE_colortable _mesa_init_colortable(&ctx->Texture.Palette); #endif + for (i = 0; i < MAX_TEXTURE_UNITS; i++) + init_texture_unit( ctx, i ); + + /* After we're done initializing the context's texture state the default + * texture objects' refcounts should be at least MAX_TEXTURE_UNITS + 1. + */ + assert(ctx->Shared->Default1D->RefCount >= MAX_TEXTURE_UNITS + 1); + /* Allocate proxy textures */ if (!alloc_proxy_textures( ctx )) return GL_FALSE; @@ -840,14 +793,24 @@ _mesa_init_texture(GLcontext *ctx) void _mesa_free_texture_data(GLcontext *ctx) { + GLuint u, tgt; + + /* unreference current textures */ + for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++) { + struct gl_texture_unit *unit = ctx->Texture.Unit + u; + _mesa_reference_texobj(&unit->Current1D, NULL); + _mesa_reference_texobj(&unit->Current2D, NULL); + _mesa_reference_texobj(&unit->Current3D, NULL); + _mesa_reference_texobj(&unit->CurrentCubeMap, NULL); + _mesa_reference_texobj(&unit->CurrentRect, NULL); + _mesa_reference_texobj(&unit->Current1DArray, NULL); + _mesa_reference_texobj(&unit->Current2DArray, NULL); + } + /* Free proxy texture objects */ - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1D ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2D ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy3D ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyCubeMap ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyRect ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1DArray ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2DArray ); + for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) + ctx->Driver.DeleteTexture(ctx, ctx->Texture.ProxyTex[tgt]); + #if FEATURE_colortable { |