ec81f19b44
Incomplete attachments don't have an associated pipe_surface, so this would crash. Fixes a WebGL conformance test that uses incomplete attachments: https://www.khronos.org/registry/webgl/sdk/tests/conformance2/renderbuffers/invalidate-framebuffer.html?webglVersion=2&quiet=0&quick=1 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111756 Reviewed-By: Tapani Pälli <tapani.palli@intel.com>
981 lines
30 KiB
C
981 lines
30 KiB
C
/**************************************************************************
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*
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* Copyright 2007 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* Framebuffer/renderbuffer functions.
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*
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* \author Brian Paul
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*/
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#include "main/imports.h"
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#include "main/context.h"
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#include "main/fbobject.h"
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#include "main/framebuffer.h"
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#include "main/glformats.h"
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#include "main/macros.h"
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#include "main/renderbuffer.h"
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#include "main/state.h"
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#include "pipe/p_context.h"
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#include "pipe/p_defines.h"
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#include "pipe/p_screen.h"
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#include "st_atom.h"
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#include "st_context.h"
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#include "st_cb_bufferobjects.h"
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#include "st_cb_fbo.h"
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#include "st_cb_flush.h"
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#include "st_cb_texture.h"
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#include "st_format.h"
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#include "st_texture.h"
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#include "st_util.h"
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#include "st_manager.h"
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#include "util/u_format.h"
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#include "util/u_inlines.h"
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#include "util/u_surface.h"
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static GLboolean
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st_renderbuffer_alloc_sw_storage(struct gl_context * ctx,
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struct gl_renderbuffer *rb,
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GLenum internalFormat,
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GLuint width, GLuint height)
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{
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struct st_context *st = st_context(ctx);
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struct st_renderbuffer *strb = st_renderbuffer(rb);
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enum pipe_format format;
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size_t size;
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free(strb->data);
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strb->data = NULL;
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if (internalFormat == GL_RGBA16_SNORM) {
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/* Special case for software accum buffers. Otherwise, if the
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* call to st_choose_renderbuffer_format() fails (because the
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* driver doesn't support signed 16-bit/channel colors) we'd
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* just return without allocating the software accum buffer.
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*/
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format = PIPE_FORMAT_R16G16B16A16_SNORM;
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}
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else {
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format = st_choose_renderbuffer_format(st, internalFormat, 0, 0);
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/* Not setting gl_renderbuffer::Format here will cause
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* FRAMEBUFFER_UNSUPPORTED and ValidateFramebuffer will not be called.
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*/
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if (format == PIPE_FORMAT_NONE) {
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return GL_TRUE;
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}
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}
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strb->Base.Format = st_pipe_format_to_mesa_format(format);
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size = _mesa_format_image_size(strb->Base.Format, width, height, 1);
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strb->data = malloc(size);
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return strb->data != NULL;
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}
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/**
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* gl_renderbuffer::AllocStorage()
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* This is called to allocate the original drawing surface, and
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* during window resize.
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*/
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static GLboolean
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st_renderbuffer_alloc_storage(struct gl_context * ctx,
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struct gl_renderbuffer *rb,
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GLenum internalFormat,
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GLuint width, GLuint height)
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{
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struct st_context *st = st_context(ctx);
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struct pipe_screen *screen = st->pipe->screen;
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struct st_renderbuffer *strb = st_renderbuffer(rb);
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enum pipe_format format = PIPE_FORMAT_NONE;
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struct pipe_resource templ;
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/* init renderbuffer fields */
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strb->Base.Width = width;
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strb->Base.Height = height;
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strb->Base._BaseFormat = _mesa_base_fbo_format(ctx, internalFormat);
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strb->defined = GL_FALSE; /* undefined contents now */
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if (strb->software) {
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return st_renderbuffer_alloc_sw_storage(ctx, rb, internalFormat,
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width, height);
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}
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/* Free the old surface and texture
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*/
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pipe_surface_reference(&strb->surface_srgb, NULL);
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pipe_surface_reference(&strb->surface_linear, NULL);
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strb->surface = NULL;
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pipe_resource_reference(&strb->texture, NULL);
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/* If an sRGB framebuffer is unsupported, sRGB formats behave like linear
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* formats.
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*/
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if (!ctx->Extensions.EXT_sRGB) {
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internalFormat = _mesa_get_linear_internalformat(internalFormat);
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}
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/* Handle multisample renderbuffers first.
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*
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* From ARB_framebuffer_object:
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* If <samples> is zero, then RENDERBUFFER_SAMPLES is set to zero.
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* Otherwise <samples> represents a request for a desired minimum
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* number of samples. Since different implementations may support
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* different sample counts for multisampled rendering, the actual
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* number of samples allocated for the renderbuffer image is
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* implementation dependent. However, the resulting value for
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* RENDERBUFFER_SAMPLES is guaranteed to be greater than or equal
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* to <samples> and no more than the next larger sample count supported
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* by the implementation.
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*
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* Find the supported number of samples >= rb->NumSamples
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*/
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if (rb->NumSamples > 0) {
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unsigned start, start_storage;
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if (ctx->Const.MaxSamples > 1 && rb->NumSamples == 1) {
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/* don't try num_samples = 1 with drivers that support real msaa */
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start = 2;
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start_storage = 2;
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} else {
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start = rb->NumSamples;
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start_storage = rb->NumStorageSamples;
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}
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if (ctx->Extensions.AMD_framebuffer_multisample_advanced) {
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if (rb->_BaseFormat == GL_DEPTH_COMPONENT ||
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rb->_BaseFormat == GL_DEPTH_STENCIL ||
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rb->_BaseFormat == GL_STENCIL_INDEX) {
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/* Find a supported depth-stencil format. */
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for (unsigned samples = start;
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samples <= ctx->Const.MaxDepthStencilFramebufferSamples;
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samples++) {
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format = st_choose_renderbuffer_format(st, internalFormat,
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samples, samples);
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if (format != PIPE_FORMAT_NONE) {
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rb->NumSamples = samples;
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rb->NumStorageSamples = samples;
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break;
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}
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}
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} else {
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/* Find a supported color format, samples >= storage_samples. */
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for (unsigned storage_samples = start_storage;
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storage_samples <= ctx->Const.MaxColorFramebufferStorageSamples;
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storage_samples++) {
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for (unsigned samples = MAX2(start, storage_samples);
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samples <= ctx->Const.MaxColorFramebufferSamples;
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samples++) {
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format = st_choose_renderbuffer_format(st, internalFormat,
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samples,
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storage_samples);
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if (format != PIPE_FORMAT_NONE) {
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rb->NumSamples = samples;
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rb->NumStorageSamples = storage_samples;
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goto found;
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}
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}
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}
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found:;
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}
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} else {
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for (unsigned samples = start; samples <= ctx->Const.MaxSamples;
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samples++) {
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format = st_choose_renderbuffer_format(st, internalFormat,
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samples, samples);
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if (format != PIPE_FORMAT_NONE) {
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rb->NumSamples = samples;
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rb->NumStorageSamples = samples;
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break;
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}
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}
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}
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} else {
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format = st_choose_renderbuffer_format(st, internalFormat, 0, 0);
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}
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/* Not setting gl_renderbuffer::Format here will cause
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* FRAMEBUFFER_UNSUPPORTED and ValidateFramebuffer will not be called.
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*/
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if (format == PIPE_FORMAT_NONE) {
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return GL_TRUE;
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}
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strb->Base.Format = st_pipe_format_to_mesa_format(format);
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if (width == 0 || height == 0) {
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/* if size is zero, nothing to allocate */
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return GL_TRUE;
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}
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/* Setup new texture template.
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*/
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memset(&templ, 0, sizeof(templ));
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templ.target = st->internal_target;
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templ.format = format;
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templ.width0 = width;
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templ.height0 = height;
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templ.depth0 = 1;
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templ.array_size = 1;
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templ.nr_samples = rb->NumSamples;
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templ.nr_storage_samples = rb->NumStorageSamples;
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if (util_format_is_depth_or_stencil(format)) {
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templ.bind = PIPE_BIND_DEPTH_STENCIL;
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}
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else if (strb->Base.Name != 0) {
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/* this is a user-created renderbuffer */
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templ.bind = PIPE_BIND_RENDER_TARGET;
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}
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else {
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/* this is a window-system buffer */
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templ.bind = (PIPE_BIND_DISPLAY_TARGET |
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PIPE_BIND_RENDER_TARGET);
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}
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strb->texture = screen->resource_create(screen, &templ);
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if (!strb->texture)
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return FALSE;
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st_update_renderbuffer_surface(st, strb);
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return strb->surface != NULL;
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}
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/**
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* gl_renderbuffer::Delete()
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*/
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static void
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st_renderbuffer_delete(struct gl_context *ctx, struct gl_renderbuffer *rb)
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{
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struct st_renderbuffer *strb = st_renderbuffer(rb);
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if (ctx) {
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struct st_context *st = st_context(ctx);
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pipe_surface_release(st->pipe, &strb->surface_srgb);
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pipe_surface_release(st->pipe, &strb->surface_linear);
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} else {
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pipe_surface_release_no_context(&strb->surface_srgb);
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pipe_surface_release_no_context(&strb->surface_linear);
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}
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strb->surface = NULL;
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pipe_resource_reference(&strb->texture, NULL);
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free(strb->data);
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_mesa_delete_renderbuffer(ctx, rb);
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}
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/**
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* Called via ctx->Driver.NewRenderbuffer()
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*/
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static struct gl_renderbuffer *
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st_new_renderbuffer(struct gl_context *ctx, GLuint name)
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{
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struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer);
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if (strb) {
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assert(name != 0);
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_mesa_init_renderbuffer(&strb->Base, name);
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strb->Base.Delete = st_renderbuffer_delete;
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strb->Base.AllocStorage = st_renderbuffer_alloc_storage;
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return &strb->Base;
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}
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return NULL;
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}
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/**
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* Allocate a renderbuffer for an on-screen window (not a user-created
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* renderbuffer). The window system code determines the format.
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*/
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struct gl_renderbuffer *
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st_new_renderbuffer_fb(enum pipe_format format, unsigned samples, boolean sw)
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{
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struct st_renderbuffer *strb;
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strb = ST_CALLOC_STRUCT(st_renderbuffer);
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if (!strb) {
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_mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer");
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return NULL;
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}
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_mesa_init_renderbuffer(&strb->Base, 0);
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strb->Base.ClassID = 0x4242; /* just a unique value */
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strb->Base.NumSamples = samples;
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strb->Base.NumStorageSamples = samples;
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strb->Base.Format = st_pipe_format_to_mesa_format(format);
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strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format);
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strb->software = sw;
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switch (format) {
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case PIPE_FORMAT_B10G10R10A2_UNORM:
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case PIPE_FORMAT_R10G10B10A2_UNORM:
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strb->Base.InternalFormat = GL_RGB10_A2;
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break;
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case PIPE_FORMAT_R10G10B10X2_UNORM:
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case PIPE_FORMAT_B10G10R10X2_UNORM:
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strb->Base.InternalFormat = GL_RGB10;
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break;
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case PIPE_FORMAT_R8G8B8A8_UNORM:
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case PIPE_FORMAT_B8G8R8A8_UNORM:
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case PIPE_FORMAT_A8R8G8B8_UNORM:
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strb->Base.InternalFormat = GL_RGBA8;
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break;
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case PIPE_FORMAT_R8G8B8X8_UNORM:
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case PIPE_FORMAT_B8G8R8X8_UNORM:
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case PIPE_FORMAT_X8R8G8B8_UNORM:
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strb->Base.InternalFormat = GL_RGB8;
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break;
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case PIPE_FORMAT_R8G8B8A8_SRGB:
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case PIPE_FORMAT_B8G8R8A8_SRGB:
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case PIPE_FORMAT_A8R8G8B8_SRGB:
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strb->Base.InternalFormat = GL_SRGB8_ALPHA8;
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break;
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case PIPE_FORMAT_R8G8B8X8_SRGB:
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case PIPE_FORMAT_B8G8R8X8_SRGB:
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case PIPE_FORMAT_X8R8G8B8_SRGB:
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strb->Base.InternalFormat = GL_SRGB8;
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break;
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case PIPE_FORMAT_B5G5R5A1_UNORM:
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strb->Base.InternalFormat = GL_RGB5_A1;
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break;
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case PIPE_FORMAT_B4G4R4A4_UNORM:
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strb->Base.InternalFormat = GL_RGBA4;
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break;
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case PIPE_FORMAT_B5G6R5_UNORM:
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strb->Base.InternalFormat = GL_RGB565;
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break;
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case PIPE_FORMAT_Z16_UNORM:
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strb->Base.InternalFormat = GL_DEPTH_COMPONENT16;
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break;
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case PIPE_FORMAT_Z32_UNORM:
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strb->Base.InternalFormat = GL_DEPTH_COMPONENT32;
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break;
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case PIPE_FORMAT_Z24_UNORM_S8_UINT:
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case PIPE_FORMAT_S8_UINT_Z24_UNORM:
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strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT;
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break;
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case PIPE_FORMAT_Z24X8_UNORM:
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case PIPE_FORMAT_X8Z24_UNORM:
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strb->Base.InternalFormat = GL_DEPTH_COMPONENT24;
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break;
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case PIPE_FORMAT_S8_UINT:
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strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT;
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break;
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case PIPE_FORMAT_R16G16B16A16_SNORM:
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/* accum buffer */
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strb->Base.InternalFormat = GL_RGBA16_SNORM;
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break;
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case PIPE_FORMAT_R16G16B16A16_UNORM:
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strb->Base.InternalFormat = GL_RGBA16;
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break;
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case PIPE_FORMAT_R8_UNORM:
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strb->Base.InternalFormat = GL_R8;
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break;
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case PIPE_FORMAT_R8G8_UNORM:
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strb->Base.InternalFormat = GL_RG8;
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break;
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case PIPE_FORMAT_R16_UNORM:
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strb->Base.InternalFormat = GL_R16;
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break;
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case PIPE_FORMAT_R16G16_UNORM:
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strb->Base.InternalFormat = GL_RG16;
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break;
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case PIPE_FORMAT_R32G32B32A32_FLOAT:
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strb->Base.InternalFormat = GL_RGBA32F;
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break;
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case PIPE_FORMAT_R32G32B32X32_FLOAT:
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strb->Base.InternalFormat = GL_RGB32F;
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break;
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case PIPE_FORMAT_R16G16B16A16_FLOAT:
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strb->Base.InternalFormat = GL_RGBA16F;
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break;
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case PIPE_FORMAT_R16G16B16X16_FLOAT:
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strb->Base.InternalFormat = GL_RGB16F;
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break;
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default:
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_mesa_problem(NULL,
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"Unexpected format %s in st_new_renderbuffer_fb",
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util_format_name(format));
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free(strb);
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return NULL;
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}
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/* st-specific methods */
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strb->Base.Delete = st_renderbuffer_delete;
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strb->Base.AllocStorage = st_renderbuffer_alloc_storage;
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/* surface is allocated in st_renderbuffer_alloc_storage() */
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strb->surface = NULL;
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return &strb->Base;
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}
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|
|
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/**
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* Create or update the pipe_surface of a FBO renderbuffer.
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* This is usually called after st_finalize_texture.
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*/
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void
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st_update_renderbuffer_surface(struct st_context *st,
|
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struct st_renderbuffer *strb)
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{
|
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struct pipe_context *pipe = st->pipe;
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struct pipe_resource *resource = strb->texture;
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const struct st_texture_object *stTexObj = NULL;
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unsigned rtt_width = strb->Base.Width;
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unsigned rtt_height = strb->Base.Height;
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unsigned rtt_depth = strb->Base.Depth;
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/*
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* For winsys fbo, it is possible that the renderbuffer is sRGB-capable but
|
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* the format of strb->texture is linear (because we have no control over
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* the format). Check strb->Base.Format instead of strb->texture->format
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* to determine if the rb is sRGB-capable.
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*/
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boolean enable_srgb = st->ctx->Color.sRGBEnabled &&
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_mesa_is_format_srgb(strb->Base.Format);
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enum pipe_format format = resource->format;
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|
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if (strb->is_rtt) {
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stTexObj = st_texture_object(strb->Base.TexImage->TexObject);
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if (stTexObj->surface_based)
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format = stTexObj->surface_format;
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}
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format = enable_srgb ? util_format_srgb(format) : util_format_linear(format);
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|
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if (resource->target == PIPE_TEXTURE_1D_ARRAY) {
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rtt_depth = rtt_height;
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rtt_height = 1;
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}
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|
|
/* find matching mipmap level size */
|
|
unsigned level;
|
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for (level = 0; level <= resource->last_level; level++) {
|
|
if (u_minify(resource->width0, level) == rtt_width &&
|
|
u_minify(resource->height0, level) == rtt_height &&
|
|
(resource->target != PIPE_TEXTURE_3D ||
|
|
u_minify(resource->depth0, level) == rtt_depth)) {
|
|
break;
|
|
}
|
|
}
|
|
assert(level <= resource->last_level);
|
|
|
|
/* determine the layer bounds */
|
|
unsigned first_layer, last_layer;
|
|
if (strb->rtt_layered) {
|
|
first_layer = 0;
|
|
last_layer = util_max_layer(strb->texture, level);
|
|
}
|
|
else {
|
|
first_layer =
|
|
last_layer = strb->rtt_face + strb->rtt_slice;
|
|
}
|
|
|
|
/* Adjust for texture views */
|
|
if (strb->is_rtt && resource->array_size > 1 &&
|
|
stTexObj->base.Immutable) {
|
|
const struct gl_texture_object *tex = &stTexObj->base;
|
|
first_layer += tex->MinLayer;
|
|
if (!strb->rtt_layered)
|
|
last_layer += tex->MinLayer;
|
|
else
|
|
last_layer = MIN2(first_layer + tex->NumLayers - 1, last_layer);
|
|
}
|
|
|
|
struct pipe_surface **psurf =
|
|
enable_srgb ? &strb->surface_srgb : &strb->surface_linear;
|
|
struct pipe_surface *surf = *psurf;
|
|
|
|
if (!surf ||
|
|
surf->texture->nr_samples != strb->Base.NumSamples ||
|
|
surf->texture->nr_storage_samples != strb->Base.NumStorageSamples ||
|
|
surf->format != format ||
|
|
surf->texture != resource ||
|
|
surf->width != rtt_width ||
|
|
surf->height != rtt_height ||
|
|
surf->nr_samples != strb->rtt_nr_samples ||
|
|
surf->u.tex.level != level ||
|
|
surf->u.tex.first_layer != first_layer ||
|
|
surf->u.tex.last_layer != last_layer) {
|
|
/* create a new pipe_surface */
|
|
struct pipe_surface surf_tmpl;
|
|
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
|
|
surf_tmpl.format = format;
|
|
surf_tmpl.nr_samples = strb->rtt_nr_samples;
|
|
surf_tmpl.u.tex.level = level;
|
|
surf_tmpl.u.tex.first_layer = first_layer;
|
|
surf_tmpl.u.tex.last_layer = last_layer;
|
|
|
|
pipe_surface_release(pipe, psurf);
|
|
|
|
*psurf = pipe->create_surface(pipe, resource, &surf_tmpl);
|
|
}
|
|
strb->surface = *psurf;
|
|
}
|
|
|
|
|
|
/**
|
|
* Return the pipe_resource which stores a particular texture image.
|
|
*/
|
|
static struct pipe_resource *
|
|
get_teximage_resource(struct gl_texture_object *texObj,
|
|
unsigned face, unsigned level)
|
|
{
|
|
struct st_texture_image *stImg =
|
|
st_texture_image(texObj->Image[face][level]);
|
|
|
|
return stImg->pt;
|
|
}
|
|
|
|
|
|
/**
|
|
* Called by ctx->Driver.RenderTexture
|
|
*/
|
|
static void
|
|
st_render_texture(struct gl_context *ctx,
|
|
struct gl_framebuffer *fb,
|
|
struct gl_renderbuffer_attachment *att)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
struct gl_renderbuffer *rb = att->Renderbuffer;
|
|
struct st_renderbuffer *strb = st_renderbuffer(rb);
|
|
struct pipe_resource *pt;
|
|
|
|
pt = get_teximage_resource(att->Texture,
|
|
att->CubeMapFace,
|
|
att->TextureLevel);
|
|
assert(pt);
|
|
|
|
/* point renderbuffer at texobject */
|
|
strb->is_rtt = TRUE;
|
|
strb->rtt_face = att->CubeMapFace;
|
|
strb->rtt_slice = att->Zoffset;
|
|
strb->rtt_layered = att->Layered;
|
|
strb->rtt_nr_samples = att->NumSamples;
|
|
pipe_resource_reference(&strb->texture, pt);
|
|
|
|
st_update_renderbuffer_surface(st, strb);
|
|
|
|
/* Invalidate buffer state so that the pipe's framebuffer state
|
|
* gets updated.
|
|
* That's where the new renderbuffer (which we just created) gets
|
|
* passed to the pipe as a (color/depth) render target.
|
|
*/
|
|
st_invalidate_buffers(st);
|
|
|
|
|
|
/* Need to trigger a call to update_framebuffer() since we just
|
|
* attached a new renderbuffer.
|
|
*/
|
|
ctx->NewState |= _NEW_BUFFERS;
|
|
}
|
|
|
|
|
|
/**
|
|
* Called via ctx->Driver.FinishRenderTexture.
|
|
*/
|
|
static void
|
|
st_finish_render_texture(struct gl_context *ctx, struct gl_renderbuffer *rb)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
struct st_renderbuffer *strb = st_renderbuffer(rb);
|
|
|
|
if (!strb)
|
|
return;
|
|
|
|
strb->is_rtt = FALSE;
|
|
|
|
/* restore previous framebuffer state */
|
|
st_invalidate_buffers(st);
|
|
}
|
|
|
|
|
|
/** Debug helper */
|
|
static void
|
|
st_fbo_invalid(const char *reason)
|
|
{
|
|
if (MESA_DEBUG_FLAGS & DEBUG_INCOMPLETE_FBO) {
|
|
_mesa_debug(NULL, "Invalid FBO: %s\n", reason);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Validate a renderbuffer attachment for a particular set of bindings.
|
|
*/
|
|
static GLboolean
|
|
st_validate_attachment(struct gl_context *ctx,
|
|
struct pipe_screen *screen,
|
|
const struct gl_renderbuffer_attachment *att,
|
|
unsigned bindings)
|
|
{
|
|
const struct st_texture_object *stObj = st_texture_object(att->Texture);
|
|
enum pipe_format format;
|
|
mesa_format texFormat;
|
|
GLboolean valid;
|
|
|
|
/* Sanity check: we must be binding the surface as a (color) render target
|
|
* or depth/stencil target.
|
|
*/
|
|
assert(bindings == PIPE_BIND_RENDER_TARGET ||
|
|
bindings == PIPE_BIND_DEPTH_STENCIL);
|
|
|
|
/* Only validate texture attachments for now, since
|
|
* st_renderbuffer_alloc_storage makes sure that
|
|
* the format is supported.
|
|
*/
|
|
if (att->Type != GL_TEXTURE)
|
|
return GL_TRUE;
|
|
|
|
if (!stObj || !stObj->pt)
|
|
return GL_FALSE;
|
|
|
|
format = stObj->pt->format;
|
|
texFormat = att->Renderbuffer->TexImage->TexFormat;
|
|
|
|
/* If the encoding is sRGB and sRGB rendering cannot be enabled,
|
|
* check for linear format support instead.
|
|
* Later when we create a surface, we change the format to a linear one. */
|
|
if (!ctx->Extensions.EXT_sRGB && _mesa_is_format_srgb(texFormat)) {
|
|
const mesa_format linearFormat = _mesa_get_srgb_format_linear(texFormat);
|
|
format = st_mesa_format_to_pipe_format(st_context(ctx), linearFormat);
|
|
}
|
|
|
|
valid = screen->is_format_supported(screen, format,
|
|
PIPE_TEXTURE_2D,
|
|
stObj->pt->nr_samples,
|
|
stObj->pt->nr_storage_samples,
|
|
bindings);
|
|
if (!valid) {
|
|
st_fbo_invalid("Invalid format");
|
|
}
|
|
|
|
return valid;
|
|
}
|
|
|
|
|
|
/**
|
|
* Check that the framebuffer configuration is valid in terms of what
|
|
* the driver can support.
|
|
*
|
|
* For Gallium we only supports combined Z+stencil, not separate buffers.
|
|
*/
|
|
static void
|
|
st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
struct pipe_screen *screen = st->pipe->screen;
|
|
const struct gl_renderbuffer_attachment *depth =
|
|
&fb->Attachment[BUFFER_DEPTH];
|
|
const struct gl_renderbuffer_attachment *stencil =
|
|
&fb->Attachment[BUFFER_STENCIL];
|
|
GLuint i;
|
|
enum pipe_format first_format = PIPE_FORMAT_NONE;
|
|
boolean mixed_formats =
|
|
screen->get_param(screen, PIPE_CAP_MIXED_COLORBUFFER_FORMATS) != 0;
|
|
|
|
if (depth->Type && stencil->Type && depth->Type != stencil->Type) {
|
|
st_fbo_invalid("Different Depth/Stencil buffer formats");
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
return;
|
|
}
|
|
if (depth->Type == GL_RENDERBUFFER_EXT &&
|
|
stencil->Type == GL_RENDERBUFFER_EXT &&
|
|
depth->Renderbuffer != stencil->Renderbuffer) {
|
|
st_fbo_invalid("Separate Depth/Stencil buffers");
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
return;
|
|
}
|
|
if (depth->Type == GL_TEXTURE &&
|
|
stencil->Type == GL_TEXTURE &&
|
|
depth->Texture != stencil->Texture) {
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
st_fbo_invalid("Different Depth/Stencil textures");
|
|
return;
|
|
}
|
|
|
|
if (!st_validate_attachment(ctx, screen, depth, PIPE_BIND_DEPTH_STENCIL)) {
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
st_fbo_invalid("Invalid depth attachment");
|
|
return;
|
|
}
|
|
if (!st_validate_attachment(ctx, screen, stencil, PIPE_BIND_DEPTH_STENCIL)) {
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
st_fbo_invalid("Invalid stencil attachment");
|
|
return;
|
|
}
|
|
for (i = 0; i < ctx->Const.MaxColorAttachments; i++) {
|
|
struct gl_renderbuffer_attachment *att =
|
|
&fb->Attachment[BUFFER_COLOR0 + i];
|
|
enum pipe_format format;
|
|
|
|
if (!st_validate_attachment(ctx, screen, att, PIPE_BIND_RENDER_TARGET)) {
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
st_fbo_invalid("Invalid color attachment");
|
|
return;
|
|
}
|
|
|
|
if (!mixed_formats) {
|
|
/* Disallow mixed formats. */
|
|
if (att->Type != GL_NONE) {
|
|
format = st_renderbuffer(att->Renderbuffer)->surface->format;
|
|
} else {
|
|
continue;
|
|
}
|
|
|
|
if (first_format == PIPE_FORMAT_NONE) {
|
|
first_format = format;
|
|
} else if (format != first_format) {
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
st_fbo_invalid("Mixed color formats");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Called by ctx->Driver.DiscardFramebuffer
|
|
*/
|
|
static void
|
|
st_discard_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
|
|
struct gl_renderbuffer_attachment *att)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
struct pipe_resource *prsc;
|
|
|
|
if (!att->Renderbuffer || !att->Complete)
|
|
return;
|
|
|
|
prsc = st_renderbuffer(att->Renderbuffer)->surface->texture;
|
|
|
|
/* using invalidate_resource will only work for simple 2D resources */
|
|
if (prsc->depth0 != 1 || prsc->array_size != 1 || prsc->last_level != 0)
|
|
return;
|
|
|
|
if (st->pipe->invalidate_resource)
|
|
st->pipe->invalidate_resource(st->pipe, prsc);
|
|
}
|
|
|
|
|
|
/**
|
|
* Called via glDrawBuffer. We only provide this driver function so that we
|
|
* can check if we need to allocate a new renderbuffer. Specifically, we
|
|
* don't usually allocate a front color buffer when using a double-buffered
|
|
* visual. But if the app calls glDrawBuffer(GL_FRONT) we need to allocate
|
|
* that buffer. Note, this is only for window system buffers, not user-
|
|
* created FBOs.
|
|
*/
|
|
static void
|
|
st_DrawBufferAllocate(struct gl_context *ctx)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
struct gl_framebuffer *fb = ctx->DrawBuffer;
|
|
|
|
if (_mesa_is_winsys_fbo(fb)) {
|
|
GLuint i;
|
|
/* add the renderbuffers on demand */
|
|
for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
|
|
gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i];
|
|
|
|
if (idx != BUFFER_NONE) {
|
|
st_manager_add_color_renderbuffer(st, fb, idx);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Called via glReadBuffer. As with st_DrawBufferAllocate, we use this
|
|
* function to check if we need to allocate a renderbuffer on demand.
|
|
*/
|
|
static void
|
|
st_ReadBuffer(struct gl_context *ctx, GLenum buffer)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
struct gl_framebuffer *fb = ctx->ReadBuffer;
|
|
|
|
(void) buffer;
|
|
|
|
/* Check if we need to allocate a front color buffer.
|
|
* Front buffers are often allocated on demand (other color buffers are
|
|
* always allocated in advance).
|
|
*/
|
|
if ((fb->_ColorReadBufferIndex == BUFFER_FRONT_LEFT ||
|
|
fb->_ColorReadBufferIndex == BUFFER_FRONT_RIGHT) &&
|
|
fb->Attachment[fb->_ColorReadBufferIndex].Type == GL_NONE) {
|
|
assert(_mesa_is_winsys_fbo(fb));
|
|
/* add the buffer */
|
|
st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex);
|
|
_mesa_update_state(ctx);
|
|
st_validate_state(st, ST_PIPELINE_UPDATE_FRAMEBUFFER);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Called via ctx->Driver.MapRenderbuffer.
|
|
*/
|
|
static void
|
|
st_MapRenderbuffer(struct gl_context *ctx,
|
|
struct gl_renderbuffer *rb,
|
|
GLuint x, GLuint y, GLuint w, GLuint h,
|
|
GLbitfield mode,
|
|
GLubyte **mapOut, GLint *rowStrideOut,
|
|
bool flip_y)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
struct st_renderbuffer *strb = st_renderbuffer(rb);
|
|
struct pipe_context *pipe = st->pipe;
|
|
const GLboolean invert = rb->Name == 0;
|
|
GLuint y2;
|
|
GLubyte *map;
|
|
|
|
/* driver does not support GL_FRAMEBUFFER_FLIP_Y_MESA */
|
|
assert((rb->Name == 0) == flip_y);
|
|
|
|
if (strb->software) {
|
|
/* software-allocated renderbuffer (probably an accum buffer) */
|
|
if (strb->data) {
|
|
GLint bpp = _mesa_get_format_bytes(strb->Base.Format);
|
|
GLint stride = _mesa_format_row_stride(strb->Base.Format,
|
|
strb->Base.Width);
|
|
*mapOut = (GLubyte *) strb->data + y * stride + x * bpp;
|
|
*rowStrideOut = stride;
|
|
}
|
|
else {
|
|
*mapOut = NULL;
|
|
*rowStrideOut = 0;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Check for unexpected flags */
|
|
assert((mode & ~(GL_MAP_READ_BIT |
|
|
GL_MAP_WRITE_BIT |
|
|
GL_MAP_INVALIDATE_RANGE_BIT)) == 0);
|
|
|
|
const enum pipe_transfer_usage transfer_flags =
|
|
st_access_flags_to_transfer_flags(mode, false);
|
|
|
|
/* Note: y=0=bottom of buffer while y2=0=top of buffer.
|
|
* 'invert' will be true for window-system buffers and false for
|
|
* user-allocated renderbuffers and textures.
|
|
*/
|
|
if (invert)
|
|
y2 = strb->Base.Height - y - h;
|
|
else
|
|
y2 = y;
|
|
|
|
map = pipe_transfer_map(pipe,
|
|
strb->texture,
|
|
strb->surface->u.tex.level,
|
|
strb->surface->u.tex.first_layer,
|
|
transfer_flags, x, y2, w, h, &strb->transfer);
|
|
if (map) {
|
|
if (invert) {
|
|
*rowStrideOut = -(int) strb->transfer->stride;
|
|
map += (h - 1) * strb->transfer->stride;
|
|
}
|
|
else {
|
|
*rowStrideOut = strb->transfer->stride;
|
|
}
|
|
*mapOut = map;
|
|
}
|
|
else {
|
|
*mapOut = NULL;
|
|
*rowStrideOut = 0;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Called via ctx->Driver.UnmapRenderbuffer.
|
|
*/
|
|
static void
|
|
st_UnmapRenderbuffer(struct gl_context *ctx,
|
|
struct gl_renderbuffer *rb)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
struct st_renderbuffer *strb = st_renderbuffer(rb);
|
|
struct pipe_context *pipe = st->pipe;
|
|
|
|
if (strb->software) {
|
|
/* software-allocated renderbuffer (probably an accum buffer) */
|
|
return;
|
|
}
|
|
|
|
pipe_transfer_unmap(pipe, strb->transfer);
|
|
strb->transfer = NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* Called via ctx->Driver.EvaluateDepthValues.
|
|
*/
|
|
static void
|
|
st_EvaluateDepthValues(struct gl_context *ctx)
|
|
{
|
|
struct st_context *st = st_context(ctx);
|
|
|
|
st_validate_state(st, ST_PIPELINE_UPDATE_FRAMEBUFFER);
|
|
|
|
st->pipe->evaluate_depth_buffer(st->pipe);
|
|
}
|
|
|
|
|
|
void
|
|
st_init_fbo_functions(struct dd_function_table *functions)
|
|
{
|
|
functions->NewFramebuffer = _mesa_new_framebuffer;
|
|
functions->NewRenderbuffer = st_new_renderbuffer;
|
|
functions->FramebufferRenderbuffer = _mesa_FramebufferRenderbuffer_sw;
|
|
functions->RenderTexture = st_render_texture;
|
|
functions->FinishRenderTexture = st_finish_render_texture;
|
|
functions->ValidateFramebuffer = st_validate_framebuffer;
|
|
functions->DiscardFramebuffer = st_discard_framebuffer;
|
|
|
|
functions->DrawBufferAllocate = st_DrawBufferAllocate;
|
|
functions->ReadBuffer = st_ReadBuffer;
|
|
|
|
functions->MapRenderbuffer = st_MapRenderbuffer;
|
|
functions->UnmapRenderbuffer = st_UnmapRenderbuffer;
|
|
functions->EvaluateDepthValues = st_EvaluateDepthValues;
|
|
}
|