static void convert_sampler(struct st_context *st, struct pipe_sampler_state *sampler, GLuint texUnit) { const struct gl_texture_object *texobj; struct gl_context *ctx = st->ctx; const struct gl_sampler_object *msamp; GLenum texBaseFormat; texobj = ctx->Texture.Unit[texUnit]._Current; if (!texobj) { texobj = _mesa_get_fallback_texture(ctx, TEXTURE_2D_INDEX); msamp = &texobj->Sampler; } else { msamp = _mesa_get_samplerobj(ctx, texUnit); } texBaseFormat = _mesa_texture_base_format(texobj); memset(sampler, 0, sizeof(*sampler)); sampler->wrap_s = gl_wrap_xlate(msamp->WrapS); sampler->wrap_t = gl_wrap_xlate(msamp->WrapT); sampler->wrap_r = gl_wrap_xlate(msamp->WrapR); sampler->min_img_filter = gl_filter_to_img_filter(msamp->MinFilter); sampler->min_mip_filter = gl_filter_to_mip_filter(msamp->MinFilter); sampler->mag_img_filter = gl_filter_to_img_filter(msamp->MagFilter); if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB) sampler->normalized_coords = 1; sampler->lod_bias = ctx->Texture.Unit[texUnit].LodBias + msamp->LodBias; sampler->min_lod = MAX2(msamp->MinLod, 0.0f); sampler->max_lod = msamp->MaxLod; if (sampler->max_lod < sampler->min_lod) { /* The GL spec doesn't seem to specify what to do in this case. * Swap the values. */ float tmp = sampler->max_lod; sampler->max_lod = sampler->min_lod; sampler->min_lod = tmp; assert(sampler->min_lod <= sampler->max_lod); } /* For non-black borders... */ if (msamp->BorderColor.ui[0] || msamp->BorderColor.ui[1] || msamp->BorderColor.ui[2] || msamp->BorderColor.ui[3]) { const struct st_texture_object *stobj = st_texture_object_const(texobj); const GLboolean is_integer = texobj->_IsIntegerFormat; const struct pipe_sampler_view *sv = NULL; union pipe_color_union border_color; GLuint i; /* Just search for the first used view. We can do this because the swizzle is per-texture, not per context. */ /* XXX: clean that up to not use the sampler view at all */ for (i = 0; i < stobj->num_sampler_views; ++i) { if (stobj->sampler_views[i]) { sv = stobj->sampler_views[i]; break; } } if (st->apply_texture_swizzle_to_border_color && sv) { const unsigned char swz[4] = { sv->swizzle_r, sv->swizzle_g, sv->swizzle_b, sv->swizzle_a, }; st_translate_color(&msamp->BorderColor, &border_color, texBaseFormat, is_integer); util_format_apply_color_swizzle(&sampler->border_color, &border_color, swz, is_integer); } else { st_translate_color(&msamp->BorderColor, &sampler->border_color, texBaseFormat, is_integer); } } sampler->max_anisotropy = (msamp->MaxAnisotropy == 1.0 ? 0 : (GLuint) msamp->MaxAnisotropy); /* If sampling a depth texture and using shadow comparison */ if ((texBaseFormat == GL_DEPTH_COMPONENT || texBaseFormat == GL_DEPTH_STENCIL) && msamp->CompareMode == GL_COMPARE_R_TO_TEXTURE) { sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE; sampler->compare_func = st_compare_func_to_pipe(msamp->CompareFunc); } sampler->seamless_cube_map = ctx->Texture.CubeMapSeamless || msamp->CubeMapSeamless; }
static void update_samplers(struct st_context *st) { struct gl_vertex_program *vprog = st->ctx->VertexProgram._Current; struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current; const GLbitfield samplersUsed = (vprog->Base.SamplersUsed | fprog->Base.SamplersUsed); GLuint su; st->state.num_samplers = 0; /* loop over sampler units (aka tex image units) */ for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) { struct pipe_sampler_state *sampler = st->state.samplers + su; memset(sampler, 0, sizeof(*sampler)); if (samplersUsed & (1 << su)) { struct gl_texture_object *texobj; struct gl_texture_image *teximg; GLuint texUnit; if (fprog->Base.SamplersUsed & (1 << su)) texUnit = fprog->Base.SamplerUnits[su]; else texUnit = vprog->Base.SamplerUnits[su]; texobj = st->ctx->Texture.Unit[texUnit]._Current; if (!texobj) { texobj = st_get_default_texture(st); } teximg = texobj->Image[0][texobj->BaseLevel]; sampler->wrap_s = gl_wrap_xlate(texobj->WrapS); sampler->wrap_t = gl_wrap_xlate(texobj->WrapT); sampler->wrap_r = gl_wrap_xlate(texobj->WrapR); sampler->min_img_filter = gl_filter_to_img_filter(texobj->MinFilter); sampler->min_mip_filter = gl_filter_to_mip_filter(texobj->MinFilter); sampler->mag_img_filter = gl_filter_to_img_filter(texobj->MagFilter); if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB) sampler->normalized_coords = 1; sampler->lod_bias = st->ctx->Texture.Unit[su].LodBias; sampler->min_lod = MAX2(0.0f, texobj->MinLod); sampler->max_lod = MIN2(texobj->MaxLevel - texobj->BaseLevel, texobj->MaxLod); if (sampler->max_lod < sampler->min_lod) { /* The GL spec doesn't seem to specify what to do in this case. * Swap the values. */ float tmp = sampler->max_lod; sampler->max_lod = sampler->min_lod; sampler->min_lod = tmp; assert(sampler->min_lod <= sampler->max_lod); } xlate_border_color(texobj->BorderColor, teximg ? teximg->_BaseFormat : GL_RGBA, sampler->border_color); sampler->max_anisotropy = texobj->MaxAnisotropy; if (sampler->max_anisotropy > 1.0) { sampler->min_img_filter = PIPE_TEX_FILTER_ANISO; sampler->mag_img_filter = PIPE_TEX_FILTER_ANISO; } /* only care about ARB_shadow, not SGI shadow */ if (texobj->CompareMode == GL_COMPARE_R_TO_TEXTURE) { sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE; sampler->compare_func = st_compare_func_to_pipe(texobj->CompareFunc); } st->state.num_samplers = su + 1; /*printf("%s su=%u non-null\n", __FUNCTION__, su);*/ cso_single_sampler(st->cso_context, su, sampler); } else { /*printf("%s su=%u null\n", __FUNCTION__, su);*/ cso_single_sampler(st->cso_context, su, NULL); } } cso_single_sampler_done(st->cso_context); }
static void convert_sampler(struct st_context *st, struct pipe_sampler_state *sampler, GLuint texUnit) { struct gl_texture_object *texobj; struct gl_context *ctx = st->ctx; struct gl_sampler_object *msamp; texobj = ctx->Texture.Unit[texUnit]._Current; if (!texobj) { texobj = _mesa_get_fallback_texture(ctx, TEXTURE_2D_INDEX); } msamp = _mesa_get_samplerobj(ctx, texUnit); memset(sampler, 0, sizeof(*sampler)); sampler->wrap_s = gl_wrap_xlate(msamp->WrapS); sampler->wrap_t = gl_wrap_xlate(msamp->WrapT); sampler->wrap_r = gl_wrap_xlate(msamp->WrapR); sampler->min_img_filter = gl_filter_to_img_filter(msamp->MinFilter); sampler->min_mip_filter = gl_filter_to_mip_filter(msamp->MinFilter); sampler->mag_img_filter = gl_filter_to_img_filter(msamp->MagFilter); if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB) sampler->normalized_coords = 1; sampler->lod_bias = ctx->Texture.Unit[texUnit].LodBias + msamp->LodBias; sampler->min_lod = CLAMP(msamp->MinLod, 0.0f, (GLfloat) texobj->MaxLevel - texobj->BaseLevel); sampler->max_lod = MIN2((GLfloat) texobj->MaxLevel - texobj->BaseLevel, msamp->MaxLod); if (sampler->max_lod < sampler->min_lod) { /* The GL spec doesn't seem to specify what to do in this case. * Swap the values. */ float tmp = sampler->max_lod; sampler->max_lod = sampler->min_lod; sampler->min_lod = tmp; assert(sampler->min_lod <= sampler->max_lod); } if (msamp->BorderColor.ui[0] || msamp->BorderColor.ui[1] || msamp->BorderColor.ui[2] || msamp->BorderColor.ui[3]) { struct st_texture_object *stobj = st_texture_object(texobj); struct gl_texture_image *teximg; GLboolean is_integer = GL_FALSE; union pipe_color_union border_color; teximg = texobj->Image[0][texobj->BaseLevel]; if (teximg) { is_integer = _mesa_is_enum_format_integer(teximg->InternalFormat); } if (st->apply_texture_swizzle_to_border_color && stobj->sampler_view) { const unsigned char swz[4] = { stobj->sampler_view->swizzle_r, stobj->sampler_view->swizzle_g, stobj->sampler_view->swizzle_b, stobj->sampler_view->swizzle_a, }; st_translate_color(&msamp->BorderColor, &border_color, teximg ? teximg->_BaseFormat : GL_RGBA, is_integer); util_format_apply_color_swizzle(&sampler->border_color, &border_color, swz, is_integer); } else { st_translate_color(&msamp->BorderColor, &sampler->border_color, teximg ? teximg->_BaseFormat : GL_RGBA, is_integer); } } sampler->max_anisotropy = (msamp->MaxAnisotropy == 1.0 ? 0 : (GLuint) msamp->MaxAnisotropy); /* only care about ARB_shadow, not SGI shadow */ if (msamp->CompareMode == GL_COMPARE_R_TO_TEXTURE) { sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE; sampler->compare_func = st_compare_func_to_pipe(msamp->CompareFunc); } sampler->seamless_cube_map = ctx->Texture.CubeMapSeamless || msamp->CubeMapSeamless; }