/** * Called by glFramebufferTexture[123]DEXT() (and other places) to * prepare for rendering into texture memory. This might be called * many times to choose different texture levels, cube faces, etc * before intel_finish_render_texture() is ever called. */ static void intel_render_texture(struct gl_context * ctx, struct gl_framebuffer *fb, struct gl_renderbuffer_attachment *att) { struct intel_context *intel = intel_context(ctx); struct gl_renderbuffer *rb = att->Renderbuffer; struct intel_renderbuffer *irb = intel_renderbuffer(rb); struct gl_texture_image *image = rb->TexImage; struct intel_texture_image *intel_image = intel_texture_image(image); struct intel_mipmap_tree *mt = intel_image->mt; int layer; (void) fb; if (att->CubeMapFace > 0) { assert(att->Zoffset == 0); layer = att->CubeMapFace; } else { layer = att->Zoffset; } if (!intel_image->mt) { /* Fallback on drawing to a texture that doesn't have a miptree * (has a border, width/height 0, etc.) */ _swrast_render_texture(ctx, fb, att); return; } intel_miptree_check_level_layer(mt, att->TextureLevel, layer); if (!intel_renderbuffer_update_wrapper(intel, irb, image, layer)) { _swrast_render_texture(ctx, fb, att); return; } DBG("Begin render %s texture tex=%u w=%d h=%d d=%d refcount=%d\n", _mesa_get_format_name(image->TexFormat), att->Texture->Name, image->Width, image->Height, image->Depth, rb->RefCount); /* update drawing region, etc */ intel_draw_buffer(ctx); }
/** * Called by glFramebufferTexture[123]DEXT() (and other places) to * prepare for rendering into texture memory. This might be called * many times to choose different texture levels, cube faces, etc * before intel_finish_render_texture() is ever called. */ static void intel_render_texture(struct gl_context * ctx, struct gl_framebuffer *fb, struct gl_renderbuffer_attachment *att) { struct intel_context *intel = intel_context(ctx); struct gl_texture_image *image = _mesa_get_attachment_teximage(att); struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer); struct intel_texture_image *intel_image = intel_texture_image(image); struct intel_mipmap_tree *mt = intel_image->mt; int layer; (void) fb; if (att->CubeMapFace > 0) { assert(att->Zoffset == 0); layer = att->CubeMapFace; } else { layer = att->Zoffset; } if (!intel_image->mt) { /* Fallback on drawing to a texture that doesn't have a miptree * (has a border, width/height 0, etc.) */ _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); _swrast_render_texture(ctx, fb, att); return; } else if (!irb) { intel_miptree_check_level_layer(mt, att->TextureLevel, layer); irb = (struct intel_renderbuffer *)intel_new_renderbuffer(ctx, ~0); if (irb) { /* bind the wrapper to the attachment point */ _mesa_reference_renderbuffer(&att->Renderbuffer, &irb->Base.Base); } else { /* fallback to software rendering */ _swrast_render_texture(ctx, fb, att); return; } } if (!intel_renderbuffer_update_wrapper(intel, irb, image, layer)) { _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); _swrast_render_texture(ctx, fb, att); return; } irb->tex_image = image; DBG("Begin render %s texture tex=%u w=%d h=%d refcount=%d\n", _mesa_get_format_name(image->TexFormat), att->Texture->Name, image->Width, image->Height, irb->Base.Base.RefCount); /* update drawing region, etc */ intel_draw_buffer(ctx); }
/** * Called by glFramebufferTexture[123]DEXT() (and other places) to * prepare for rendering into texture memory. This might be called * many times to choose different texture levels, cube faces, etc * before intel_finish_render_texture() is ever called. */ static void intel_render_texture(struct gl_context * ctx, struct gl_framebuffer *fb, struct gl_renderbuffer_attachment *att) { struct intel_context *intel = intel_context(ctx); struct gl_texture_image *image = _mesa_get_attachment_teximage(att); struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer); struct intel_texture_image *intel_image = intel_texture_image(image); struct intel_mipmap_tree *mt = intel_image->mt; int layer; (void) fb; if (att->CubeMapFace > 0) { assert(att->Zoffset == 0); layer = att->CubeMapFace; } else { layer = att->Zoffset; } if (!intel_image->mt) { /* Fallback on drawing to a texture that doesn't have a miptree * (has a border, width/height 0, etc.) */ _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); _swrast_render_texture(ctx, fb, att); return; } else if (!irb) { intel_miptree_check_level_layer(mt, att->TextureLevel, layer); irb = (struct intel_renderbuffer *)intel_new_renderbuffer(ctx, ~0); if (irb) { /* bind the wrapper to the attachment point */ _mesa_reference_renderbuffer(&att->Renderbuffer, &irb->Base.Base); } else { /* fallback to software rendering */ _swrast_render_texture(ctx, fb, att); return; } } if (!intel_renderbuffer_update_wrapper(intel, irb, image, layer)) { _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); _swrast_render_texture(ctx, fb, att); return; } DBG("Begin render %s texture tex=%u w=%d h=%d refcount=%d\n", _mesa_get_format_name(image->TexFormat), att->Texture->Name, image->Width, image->Height, irb->Base.Base.RefCount); intel_image->used_as_render_target = true; #ifndef I915 if (need_tile_offset_workaround(brw_context(ctx), irb)) { /* Original gen4 hardware couldn't draw to a non-tile-aligned * destination in a miptree unless you actually setup your * renderbuffer as a miptree and used the fragile * lod/array_index/etc. controls to select the image. So, * instead, we just make a new single-level miptree and render * into that. */ struct intel_context *intel = intel_context(ctx); struct intel_mipmap_tree *new_mt; int width, height, depth; intel_miptree_get_dimensions_for_image(image, &width, &height, &depth); new_mt = intel_miptree_create(intel, image->TexObject->Target, intel_image->base.Base.TexFormat, intel_image->base.Base.Level, intel_image->base.Base.Level, width, height, depth, true); intel_miptree_copy_teximage(intel, intel_image, new_mt); intel_renderbuffer_set_draw_offset(irb); intel_miptree_reference(&irb->mt, intel_image->mt); intel_miptree_release(&new_mt); } #endif /* update drawing region, etc */ intel_draw_buffer(ctx); }