/** * ctx->Driver.AllocTextureStorage() handler. * * Compare this to _mesa_alloc_texture_storage, which would call into * intel_alloc_texture_image_buffer() above. */ static GLboolean intel_alloc_texture_storage(struct gl_context *ctx, struct gl_texture_object *texobj, GLsizei levels, GLsizei width, GLsizei height, GLsizei depth) { struct brw_context *brw = brw_context(ctx); struct intel_texture_object *intel_texobj = intel_texture_object(texobj); struct gl_texture_image *first_image = texobj->Image[0][0]; int num_samples = intel_quantize_num_samples(brw->intelScreen, first_image->NumSamples); const int numFaces = _mesa_num_tex_faces(texobj->Target); int face; int level; /* If the object's current miptree doesn't match what we need, make a new * one. */ if (!intel_texobj->mt || !intel_miptree_match_image(intel_texobj->mt, first_image) || intel_texobj->mt->last_level != levels - 1) { intel_miptree_release(&intel_texobj->mt); intel_texobj->mt = intel_miptree_create(brw, texobj->Target, first_image->TexFormat, 0, levels - 1, width, height, depth, false, /* expect_accelerated */ num_samples, INTEL_MIPTREE_TILING_ANY, false); if (intel_texobj->mt == NULL) { return false; } } for (face = 0; face < numFaces; face++) { for (level = 0; level < levels; level++) { struct gl_texture_image *image = texobj->Image[face][level]; struct intel_texture_image *intel_image = intel_texture_image(image); image->NumSamples = num_samples; _swrast_free_texture_image_buffer(ctx, image); if (!_swrast_init_texture_image(image)) return false; intel_miptree_reference(&intel_image->mt, intel_texobj->mt); } } /* The miptree is in a validated state, so no need to check later. */ intel_texobj->needs_validate = false; intel_texobj->validated_first_level = 0; intel_texobj->validated_last_level = levels - 1; intel_texobj->_Format = intel_texobj->mt->format; return true; }
/** * Called via glRenderbufferStorageEXT() to set the format and allocate * storage for a user-created renderbuffer. */ GLboolean intel_alloc_renderbuffer_storage(struct gl_context * ctx, struct gl_renderbuffer *rb, GLenum internalFormat, GLuint width, GLuint height) { struct intel_context *intel = intel_context(ctx); struct intel_screen *screen = intel->intelScreen; struct intel_renderbuffer *irb = intel_renderbuffer(rb); rb->NumSamples = intel_quantize_num_samples(screen, rb->NumSamples); switch (internalFormat) { default: /* Use the same format-choice logic as for textures. * Renderbuffers aren't any different from textures for us, * except they're less useful because you can't texture with * them. */ rb->Format = intel->ctx.Driver.ChooseTextureFormat(ctx, GL_TEXTURE_2D, internalFormat, GL_NONE, GL_NONE); break; case GL_STENCIL_INDEX: case GL_STENCIL_INDEX1_EXT: case GL_STENCIL_INDEX4_EXT: case GL_STENCIL_INDEX8_EXT: case GL_STENCIL_INDEX16_EXT: /* These aren't actual texture formats, so force them here. */ if (intel->has_separate_stencil) { rb->Format = MESA_FORMAT_S8; } else { assert(!intel->must_use_separate_stencil); rb->Format = MESA_FORMAT_S8_Z24; } break; } rb->Width = width; rb->Height = height; rb->_BaseFormat = _mesa_base_fbo_format(ctx, internalFormat); intel_miptree_release(&irb->mt); DBG("%s: %s: %s (%dx%d)\n", __FUNCTION__, _mesa_lookup_enum_by_nr(internalFormat), _mesa_get_format_name(rb->Format), width, height); if (width == 0 || height == 0) return true; irb->mt = intel_miptree_create_for_renderbuffer(intel, rb->Format, width, height, rb->NumSamples); if (!irb->mt) return false; return true; }
static GLboolean intel_alloc_texture_image_buffer(struct gl_context *ctx, struct gl_texture_image *image) { struct brw_context *brw = brw_context(ctx); struct intel_texture_image *intel_image = intel_texture_image(image); struct gl_texture_object *texobj = image->TexObject; struct intel_texture_object *intel_texobj = intel_texture_object(texobj); assert(image->Border == 0); /* Quantize sample count */ if (image->NumSamples) { image->NumSamples = intel_quantize_num_samples(brw->screen, image->NumSamples); if (!image->NumSamples) return false; } /* Because the driver uses AllocTextureImageBuffer() internally, it may end * up mismatched with FreeTextureImageBuffer(), but that is safe to call * multiple times. */ ctx->Driver.FreeTextureImageBuffer(ctx, image); if (!_swrast_init_texture_image(image)) return false; if (intel_texobj->mt && intel_miptree_match_image(intel_texobj->mt, image)) { intel_miptree_reference(&intel_image->mt, intel_texobj->mt); DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n", __func__, texobj, image->Level, image->Width, image->Height, image->Depth, intel_texobj->mt); } else { intel_image->mt = intel_miptree_create_for_teximage(brw, intel_texobj, intel_image, MIPTREE_CREATE_DEFAULT); if (!intel_image->mt) return false; /* Even if the object currently has a mipmap tree associated * with it, this one is a more likely candidate to represent the * whole object since our level didn't fit what was there * before, and any lower levels would fit into our miptree. */ intel_miptree_reference(&intel_texobj->mt, intel_image->mt); DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n", __func__, texobj, image->Level, image->Width, image->Height, image->Depth, intel_image->mt); } intel_texobj->needs_validate = true; return true; }
/** * This is called when we need to set up GL rendering to a new X window. */ static GLboolean intelCreateBuffer(__DRIscreen * driScrnPriv, __DRIdrawable * driDrawPriv, const struct gl_config * mesaVis, GLboolean isPixmap) { struct intel_renderbuffer *rb; struct intel_screen *screen = (struct intel_screen*) driScrnPriv->driverPrivate; gl_format rgbFormat; unsigned num_samples = intel_quantize_num_samples(screen, mesaVis->samples); struct gl_framebuffer *fb; if (isPixmap) return false; fb = CALLOC_STRUCT(gl_framebuffer); if (!fb) return false; _mesa_initialize_window_framebuffer(fb, mesaVis); if (mesaVis->redBits == 5) rgbFormat = MESA_FORMAT_RGB565; else if (mesaVis->sRGBCapable) rgbFormat = MESA_FORMAT_SARGB8; else if (mesaVis->alphaBits == 0) rgbFormat = MESA_FORMAT_XRGB8888; else rgbFormat = MESA_FORMAT_ARGB8888; /* setup the hardware-based renderbuffers */ rb = intel_create_renderbuffer(rgbFormat, num_samples); _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base.Base); if (mesaVis->doubleBufferMode) { rb = intel_create_renderbuffer(rgbFormat, num_samples); _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base.Base); } /* * Assert here that the gl_config has an expected depth/stencil bit * combination: one of d24/s8, d16/s0, d0/s0. (See intelInitScreen2(), * which constructs the advertised configs.) */ if (mesaVis->depthBits == 24) { assert(mesaVis->stencilBits == 8); if (screen->hw_has_separate_stencil) { rb = intel_create_private_renderbuffer(MESA_FORMAT_X8_Z24, num_samples); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &rb->Base.Base); rb = intel_create_private_renderbuffer(MESA_FORMAT_S8, num_samples); _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &rb->Base.Base); } else { /* * Use combined depth/stencil. Note that the renderbuffer is * attached to two attachment points. */ rb = intel_create_private_renderbuffer(MESA_FORMAT_S8_Z24, num_samples); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &rb->Base.Base); _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &rb->Base.Base); } } else if (mesaVis->depthBits == 16) { assert(mesaVis->stencilBits == 0); rb = intel_create_private_renderbuffer(MESA_FORMAT_Z16, num_samples); _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &rb->Base.Base); } else { assert(mesaVis->depthBits == 0); assert(mesaVis->stencilBits == 0); } /* now add any/all software-based renderbuffers we may need */ _swrast_add_soft_renderbuffers(fb, false, /* never sw color */ false, /* never sw depth */ false, /* never sw stencil */ mesaVis->accumRedBits > 0, false, /* never sw alpha */ false /* never sw aux */ ); driDrawPriv->driverPrivate = fb; return true; }