mesa: move glBlitFramebuffer code into new blit.c file
Just for better organization. v2: update gl_genexec.py too (not api_exec.c) Acked-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Brian Paul
@@ -51,6 +51,7 @@ header = """/**
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#include "main/atifragshader.h"
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#include "main/atifragshader.h"
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#include "main/attrib.h"
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#include "main/attrib.h"
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#include "main/blend.h"
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#include "main/blend.h"
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#include "main/blit.h"
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#include "main/bufferobj.h"
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#include "main/bufferobj.h"
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#include "main/arrayobj.h"
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#include "main/arrayobj.h"
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#include "main/buffers.h"
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#include "main/buffers.h"
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@@ -18,6 +18,7 @@ MAIN_FILES = \
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$(SRCDIR)main/attrib.c \
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$(SRCDIR)main/attrib.c \
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$(SRCDIR)main/arrayobj.c \
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$(SRCDIR)main/arrayobj.c \
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$(SRCDIR)main/blend.c \
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$(SRCDIR)main/blend.c \
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$(SRCDIR)main/blit.c \
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$(SRCDIR)main/bufferobj.c \
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$(SRCDIR)main/bufferobj.c \
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$(SRCDIR)main/buffers.c \
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$(SRCDIR)main/buffers.c \
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$(SRCDIR)main/clear.c \
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$(SRCDIR)main/clear.c \
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@@ -46,6 +46,7 @@ main_sources = [
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'main/attrib.c',
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'main/attrib.c',
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'main/arrayobj.c',
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'main/arrayobj.c',
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'main/blend.c',
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'main/blend.c',
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'main/blit.c',
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'main/bufferobj.c',
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'main/bufferobj.c',
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'main/buffers.c',
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'main/buffers.c',
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'main/clear.c',
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'main/clear.c',
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513
src/mesa/main/blit.c
Normal file
513
src/mesa/main/blit.c
Normal file
@@ -0,0 +1,513 @@
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/*
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* Mesa 3-D graphics library
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*
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* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
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* Copyright (C) 1999-2013 VMware, Inc. 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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions 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 MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* glBlitFramebuffer functions.
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*/
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#include <stdbool.h>
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#include "context.h"
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#include "enums.h"
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#include "blit.h"
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#include "fbobject.h"
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#include "glformats.h"
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#include "mtypes.h"
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#include "state.h"
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/** Set this to 1 to debug/log glBlitFramebuffer() calls */
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#define DEBUG_BLIT 0
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static const struct gl_renderbuffer_attachment *
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find_attachment(const struct gl_framebuffer *fb,
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const struct gl_renderbuffer *rb)
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{
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GLuint i;
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for (i = 0; i < Elements(fb->Attachment); i++) {
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if (fb->Attachment[i].Renderbuffer == rb)
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return &fb->Attachment[i];
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}
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return NULL;
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}
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/**
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* Helper function for checking if the datatypes of color buffers are
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* compatible for glBlitFramebuffer. From the 3.1 spec, page 198:
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*
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* "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT
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* and any of the following conditions hold:
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* - The read buffer contains fixed-point or floating-point values and any
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* draw buffer contains neither fixed-point nor floating-point values.
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* - The read buffer contains unsigned integer values and any draw buffer
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* does not contain unsigned integer values.
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* - The read buffer contains signed integer values and any draw buffer
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* does not contain signed integer values."
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*/
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static GLboolean
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compatible_color_datatypes(mesa_format srcFormat, mesa_format dstFormat)
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{
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GLenum srcType = _mesa_get_format_datatype(srcFormat);
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GLenum dstType = _mesa_get_format_datatype(dstFormat);
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if (srcType != GL_INT && srcType != GL_UNSIGNED_INT) {
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assert(srcType == GL_UNSIGNED_NORMALIZED ||
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srcType == GL_SIGNED_NORMALIZED ||
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srcType == GL_FLOAT);
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/* Boil any of those types down to GL_FLOAT */
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srcType = GL_FLOAT;
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}
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if (dstType != GL_INT && dstType != GL_UNSIGNED_INT) {
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assert(dstType == GL_UNSIGNED_NORMALIZED ||
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dstType == GL_SIGNED_NORMALIZED ||
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dstType == GL_FLOAT);
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/* Boil any of those types down to GL_FLOAT */
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dstType = GL_FLOAT;
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}
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return srcType == dstType;
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}
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static GLboolean
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compatible_resolve_formats(const struct gl_renderbuffer *readRb,
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const struct gl_renderbuffer *drawRb)
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{
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GLenum readFormat, drawFormat;
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/* The simple case where we know the backing Mesa formats are the same.
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*/
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if (_mesa_get_srgb_format_linear(readRb->Format) ==
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_mesa_get_srgb_format_linear(drawRb->Format)) {
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return GL_TRUE;
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}
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/* The Mesa formats are different, so we must check whether the internal
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* formats are compatible.
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*
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* Under some circumstances, the user may request e.g. two GL_RGBA8
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* textures and get two entirely different Mesa formats like RGBA8888 and
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* ARGB8888. Drivers behaving like that should be able to cope with
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* non-matching formats by themselves, because it's not the user's fault.
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*
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* Blits between linear and sRGB formats are also allowed.
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*/
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readFormat = _mesa_get_nongeneric_internalformat(readRb->InternalFormat);
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drawFormat = _mesa_get_nongeneric_internalformat(drawRb->InternalFormat);
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readFormat = _mesa_get_linear_internalformat(readFormat);
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drawFormat = _mesa_get_linear_internalformat(drawFormat);
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if (readFormat == drawFormat) {
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return GL_TRUE;
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}
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return GL_FALSE;
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}
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static GLboolean
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is_valid_blit_filter(const struct gl_context *ctx, GLenum filter)
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{
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switch (filter) {
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case GL_NEAREST:
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case GL_LINEAR:
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return true;
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case GL_SCALED_RESOLVE_FASTEST_EXT:
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case GL_SCALED_RESOLVE_NICEST_EXT:
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return ctx->Extensions.EXT_framebuffer_multisample_blit_scaled;
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default:
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return false;
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}
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}
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/**
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* Blit rectangular region, optionally from one framebuffer to another.
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*
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* Note, if the src buffer is multisampled and the dest is not, this is
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* when the samples must be resolved to a single color.
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*/
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void GLAPIENTRY
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_mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
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GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
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GLbitfield mask, GLenum filter)
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{
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const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
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GL_DEPTH_BUFFER_BIT |
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GL_STENCIL_BUFFER_BIT);
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const struct gl_framebuffer *readFb, *drawFb;
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GET_CURRENT_CONTEXT(ctx);
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FLUSH_VERTICES(ctx, 0);
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if (MESA_VERBOSE & VERBOSE_API)
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_mesa_debug(ctx,
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"glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n",
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srcX0, srcY0, srcX1, srcY1,
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dstX0, dstY0, dstX1, dstY1,
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mask, _mesa_lookup_enum_by_nr(filter));
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if (ctx->NewState) {
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_mesa_update_state(ctx);
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}
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readFb = ctx->ReadBuffer;
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drawFb = ctx->DrawBuffer;
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if (!readFb || !drawFb) {
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/* This will normally never happen but someday we may want to
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* support MakeCurrent() with no drawables.
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*/
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return;
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}
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/* check for complete framebuffers */
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if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
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readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
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_mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
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"glBlitFramebufferEXT(incomplete draw/read buffers)");
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return;
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}
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if (!is_valid_blit_filter(ctx, filter)) {
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_mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(%s)",
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_mesa_lookup_enum_by_nr(filter));
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return;
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}
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if ((filter == GL_SCALED_RESOLVE_FASTEST_EXT ||
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filter == GL_SCALED_RESOLVE_NICEST_EXT) &&
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(readFb->Visual.samples == 0 || drawFb->Visual.samples > 0)) {
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_mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT(%s)",
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_mesa_lookup_enum_by_nr(filter));
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return;
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}
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if (mask & ~legalMaskBits) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
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return;
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}
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/* depth/stencil must be blitted with nearest filtering */
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if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
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&& filter != GL_NEAREST) {
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_mesa_error(ctx, GL_INVALID_OPERATION,
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"glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter)");
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return;
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}
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/* get color read/draw renderbuffers */
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if (mask & GL_COLOR_BUFFER_BIT) {
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const GLuint numColorDrawBuffers = ctx->DrawBuffer->_NumColorDrawBuffers;
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const struct gl_renderbuffer *colorReadRb = readFb->_ColorReadBuffer;
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const struct gl_renderbuffer *colorDrawRb = NULL;
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GLuint i;
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/* From the EXT_framebuffer_object spec:
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*
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* "If a buffer is specified in <mask> and does not exist in both
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* the read and draw framebuffers, the corresponding bit is silently
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* ignored."
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*/
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if (!colorReadRb || numColorDrawBuffers == 0) {
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mask &= ~GL_COLOR_BUFFER_BIT;
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}
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else {
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for (i = 0; i < numColorDrawBuffers; i++) {
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colorDrawRb = ctx->DrawBuffer->_ColorDrawBuffers[i];
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if (!colorDrawRb)
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continue;
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/* Page 193 (page 205 of the PDF) in section 4.3.2 of the OpenGL
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* ES 3.0.1 spec says:
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*
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* "If the source and destination buffers are identical, an
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* INVALID_OPERATION error is generated. Different mipmap
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* levels of a texture, different layers of a three-
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* dimensional texture or two-dimensional array texture, and
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* different faces of a cube map texture do not constitute
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* identical buffers."
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*/
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if (_mesa_is_gles3(ctx) && (colorDrawRb == colorReadRb)) {
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_mesa_error(ctx, GL_INVALID_OPERATION,
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"glBlitFramebuffer(source and destination color "
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"buffer cannot be the same)");
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return;
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}
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if (!compatible_color_datatypes(colorReadRb->Format,
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colorDrawRb->Format)) {
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_mesa_error(ctx, GL_INVALID_OPERATION,
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"glBlitFramebufferEXT(color buffer datatypes mismatch)");
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return;
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}
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/* extra checks for multisample copies... */
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if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
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/* color formats must match */
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if (!compatible_resolve_formats(colorReadRb, colorDrawRb)) {
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_mesa_error(ctx, GL_INVALID_OPERATION,
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"glBlitFramebufferEXT(bad src/dst multisample pixel formats)");
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return;
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}
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}
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}
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if (filter != GL_NEAREST) {
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/* From EXT_framebuffer_multisample_blit_scaled specification:
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* "Calling BlitFramebuffer will result in an INVALID_OPERATION error
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* if filter is not NEAREST and read buffer contains integer data."
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*/
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GLenum type = _mesa_get_format_datatype(colorReadRb->Format);
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if (type == GL_INT || type == GL_UNSIGNED_INT) {
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_mesa_error(ctx, GL_INVALID_OPERATION,
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"glBlitFramebufferEXT(integer color type)");
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return;
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}
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}
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}
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}
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if (mask & GL_STENCIL_BUFFER_BIT) {
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struct gl_renderbuffer *readRb =
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readFb->Attachment[BUFFER_STENCIL].Renderbuffer;
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struct gl_renderbuffer *drawRb =
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drawFb->Attachment[BUFFER_STENCIL].Renderbuffer;
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|
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/* From the EXT_framebuffer_object spec:
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*
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||||||
|
* "If a buffer is specified in <mask> and does not exist in both
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||||||
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* the read and draw framebuffers, the corresponding bit is silently
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* ignored."
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*/
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if ((readRb == NULL) || (drawRb == NULL)) {
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mask &= ~GL_STENCIL_BUFFER_BIT;
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}
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else {
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int read_z_bits, draw_z_bits;
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if (_mesa_is_gles3(ctx) && (drawRb == readRb)) {
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_mesa_error(ctx, GL_INVALID_OPERATION,
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"glBlitFramebuffer(source and destination stencil "
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"buffer cannot be the same)");
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return;
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}
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if (_mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
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_mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
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/* There is no need to check the stencil datatype here, because
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* there is only one: GL_UNSIGNED_INT.
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*/
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_mesa_error(ctx, GL_INVALID_OPERATION,
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"glBlitFramebuffer(stencil attachment format mismatch)");
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return;
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}
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||||||
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read_z_bits = _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS);
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draw_z_bits = _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS);
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||||||
|
/* If both buffers also have depth data, the depth formats must match
|
||||||
|
* as well. If one doesn't have depth, it's not blitted, so we should
|
||||||
|
* ignore the depth format check.
|
||||||
|
*/
|
||||||
|
if (read_z_bits > 0 && draw_z_bits > 0 &&
|
||||||
|
(read_z_bits != draw_z_bits ||
|
||||||
|
_mesa_get_format_datatype(readRb->Format) !=
|
||||||
|
_mesa_get_format_datatype(drawRb->Format))) {
|
||||||
|
|
||||||
|
_mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebuffer"
|
||||||
|
"(stencil attachment depth format mismatch)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (mask & GL_DEPTH_BUFFER_BIT) {
|
||||||
|
struct gl_renderbuffer *readRb =
|
||||||
|
readFb->Attachment[BUFFER_DEPTH].Renderbuffer;
|
||||||
|
struct gl_renderbuffer *drawRb =
|
||||||
|
drawFb->Attachment[BUFFER_DEPTH].Renderbuffer;
|
||||||
|
|
||||||
|
/* From the EXT_framebuffer_object spec:
|
||||||
|
*
|
||||||
|
* "If a buffer is specified in <mask> and does not exist in both
|
||||||
|
* the read and draw framebuffers, the corresponding bit is silently
|
||||||
|
* ignored."
|
||||||
|
*/
|
||||||
|
if ((readRb == NULL) || (drawRb == NULL)) {
|
||||||
|
mask &= ~GL_DEPTH_BUFFER_BIT;
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
int read_s_bit, draw_s_bit;
|
||||||
|
|
||||||
|
if (_mesa_is_gles3(ctx) && (drawRb == readRb)) {
|
||||||
|
_mesa_error(ctx, GL_INVALID_OPERATION,
|
||||||
|
"glBlitFramebuffer(source and destination depth "
|
||||||
|
"buffer cannot be the same)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ((_mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
|
||||||
|
_mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) ||
|
||||||
|
(_mesa_get_format_datatype(readRb->Format) !=
|
||||||
|
_mesa_get_format_datatype(drawRb->Format))) {
|
||||||
|
_mesa_error(ctx, GL_INVALID_OPERATION,
|
||||||
|
"glBlitFramebuffer(depth attachment format mismatch)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
read_s_bit = _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS);
|
||||||
|
draw_s_bit = _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS);
|
||||||
|
|
||||||
|
/* If both buffers also have stencil data, the stencil formats must
|
||||||
|
* match as well. If one doesn't have stencil, it's not blitted, so
|
||||||
|
* we should ignore the stencil format check.
|
||||||
|
*/
|
||||||
|
if (read_s_bit > 0 && draw_s_bit > 0 && read_s_bit != draw_s_bit) {
|
||||||
|
_mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebuffer"
|
||||||
|
"(depth attachment stencil bits mismatch)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
if (_mesa_is_gles3(ctx)) {
|
||||||
|
/* Page 194 (page 206 of the PDF) in section 4.3.2 of the OpenGL ES
|
||||||
|
* 3.0.1 spec says:
|
||||||
|
*
|
||||||
|
* "If SAMPLE_BUFFERS for the draw framebuffer is greater than zero,
|
||||||
|
* an INVALID_OPERATION error is generated."
|
||||||
|
*/
|
||||||
|
if (drawFb->Visual.samples > 0) {
|
||||||
|
_mesa_error(ctx, GL_INVALID_OPERATION,
|
||||||
|
"glBlitFramebuffer(destination samples must be 0)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Page 194 (page 206 of the PDF) in section 4.3.2 of the OpenGL ES
|
||||||
|
* 3.0.1 spec says:
|
||||||
|
*
|
||||||
|
* "If SAMPLE_BUFFERS for the read framebuffer is greater than zero,
|
||||||
|
* no copy is performed and an INVALID_OPERATION error is generated
|
||||||
|
* if the formats of the read and draw framebuffers are not
|
||||||
|
* identical or if the source and destination rectangles are not
|
||||||
|
* defined with the same (X0, Y0) and (X1, Y1) bounds."
|
||||||
|
*
|
||||||
|
* The format check was made above because desktop OpenGL has the same
|
||||||
|
* requirement.
|
||||||
|
*/
|
||||||
|
if (readFb->Visual.samples > 0
|
||||||
|
&& (srcX0 != dstX0 || srcY0 != dstY0
|
||||||
|
|| srcX1 != dstX1 || srcY1 != dstY1)) {
|
||||||
|
_mesa_error(ctx, GL_INVALID_OPERATION,
|
||||||
|
"glBlitFramebuffer(bad src/dst multisample region)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (readFb->Visual.samples > 0 &&
|
||||||
|
drawFb->Visual.samples > 0 &&
|
||||||
|
readFb->Visual.samples != drawFb->Visual.samples) {
|
||||||
|
_mesa_error(ctx, GL_INVALID_OPERATION,
|
||||||
|
"glBlitFramebufferEXT(mismatched samples)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* extra checks for multisample copies... */
|
||||||
|
if ((readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) &&
|
||||||
|
(filter == GL_NEAREST || filter == GL_LINEAR)) {
|
||||||
|
/* src and dest region sizes must be the same */
|
||||||
|
if (abs(srcX1 - srcX0) != abs(dstX1 - dstX0) ||
|
||||||
|
abs(srcY1 - srcY0) != abs(dstY1 - dstY0)) {
|
||||||
|
_mesa_error(ctx, GL_INVALID_OPERATION,
|
||||||
|
"glBlitFramebufferEXT(bad src/dst multisample region sizes)");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Debug code */
|
||||||
|
if (DEBUG_BLIT) {
|
||||||
|
const struct gl_renderbuffer *colorReadRb = readFb->_ColorReadBuffer;
|
||||||
|
const struct gl_renderbuffer *colorDrawRb = NULL;
|
||||||
|
GLuint i = 0;
|
||||||
|
|
||||||
|
printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
|
||||||
|
" 0x%x, 0x%x)\n",
|
||||||
|
srcX0, srcY0, srcX1, srcY1,
|
||||||
|
dstX0, dstY0, dstX1, dstY1,
|
||||||
|
mask, filter);
|
||||||
|
if (colorReadRb) {
|
||||||
|
const struct gl_renderbuffer_attachment *att;
|
||||||
|
|
||||||
|
att = find_attachment(readFb, colorReadRb);
|
||||||
|
printf(" Src FBO %u RB %u (%dx%d) ",
|
||||||
|
readFb->Name, colorReadRb->Name,
|
||||||
|
colorReadRb->Width, colorReadRb->Height);
|
||||||
|
if (att && att->Texture) {
|
||||||
|
printf("Tex %u tgt 0x%x level %u face %u",
|
||||||
|
att->Texture->Name,
|
||||||
|
att->Texture->Target,
|
||||||
|
att->TextureLevel,
|
||||||
|
att->CubeMapFace);
|
||||||
|
}
|
||||||
|
printf("\n");
|
||||||
|
|
||||||
|
/* Print all active color render buffers */
|
||||||
|
for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
|
||||||
|
colorDrawRb = ctx->DrawBuffer->_ColorDrawBuffers[i];
|
||||||
|
if (!colorDrawRb)
|
||||||
|
continue;
|
||||||
|
|
||||||
|
att = find_attachment(drawFb, colorDrawRb);
|
||||||
|
printf(" Dst FBO %u RB %u (%dx%d) ",
|
||||||
|
drawFb->Name, colorDrawRb->Name,
|
||||||
|
colorDrawRb->Width, colorDrawRb->Height);
|
||||||
|
if (att && att->Texture) {
|
||||||
|
printf("Tex %u tgt 0x%x level %u face %u",
|
||||||
|
att->Texture->Name,
|
||||||
|
att->Texture->Target,
|
||||||
|
att->TextureLevel,
|
||||||
|
att->CubeMapFace);
|
||||||
|
}
|
||||||
|
printf("\n");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!mask ||
|
||||||
|
(srcX1 - srcX0) == 0 || (srcY1 - srcY0) == 0 ||
|
||||||
|
(dstX1 - dstX0) == 0 || (dstY1 - dstY0) == 0) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
ASSERT(ctx->Driver.BlitFramebuffer);
|
||||||
|
ctx->Driver.BlitFramebuffer(ctx,
|
||||||
|
srcX0, srcY0, srcX1, srcY1,
|
||||||
|
dstX0, dstY0, dstX1, dstY1,
|
||||||
|
mask, filter);
|
||||||
|
}
|
||||||
39
src/mesa/main/blit.h
Normal file
39
src/mesa/main/blit.h
Normal file
@@ -0,0 +1,39 @@
|
|||||||
|
/*
|
||||||
|
* Mesa 3-D graphics library
|
||||||
|
*
|
||||||
|
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
||||||
|
* copy of this software and associated documentation files (the "Software"),
|
||||||
|
* to deal in the Software without restriction, including without limitation
|
||||||
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||||
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be included
|
||||||
|
* in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||||||
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||||
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
||||||
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
||||||
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef BLIT_H
|
||||||
|
#define BLIT_H
|
||||||
|
|
||||||
|
#include "compiler.h"
|
||||||
|
#include "glheader.h"
|
||||||
|
|
||||||
|
|
||||||
|
extern void GLAPIENTRY
|
||||||
|
_mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
|
||||||
|
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
|
||||||
|
GLbitfield mask, GLenum filter);
|
||||||
|
|
||||||
|
|
||||||
|
#endif /* BLIT_H */
|
||||||
@@ -50,10 +50,6 @@
|
|||||||
#include "texobj.h"
|
#include "texobj.h"
|
||||||
|
|
||||||
|
|
||||||
/** Set this to 1 to debug/log glBlitFramebuffer() calls */
|
|
||||||
#define DEBUG_BLIT 0
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Notes:
|
* Notes:
|
||||||
*
|
*
|
||||||
@@ -3069,475 +3065,6 @@ _mesa_GenerateMipmap(GLenum target)
|
|||||||
_mesa_unlock_texture(ctx, texObj);
|
_mesa_unlock_texture(ctx, texObj);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static const struct gl_renderbuffer_attachment *
|
|
||||||
find_attachment(const struct gl_framebuffer *fb,
|
|
||||||
const struct gl_renderbuffer *rb)
|
|
||||||
{
|
|
||||||
GLuint i;
|
|
||||||
for (i = 0; i < Elements(fb->Attachment); i++) {
|
|
||||||
if (fb->Attachment[i].Renderbuffer == rb)
|
|
||||||
return &fb->Attachment[i];
|
|
||||||
}
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Helper function for checking if the datatypes of color buffers are
|
|
||||||
* compatible for glBlitFramebuffer. From the 3.1 spec, page 198:
|
|
||||||
*
|
|
||||||
* "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT
|
|
||||||
* and any of the following conditions hold:
|
|
||||||
* - The read buffer contains fixed-point or floating-point values and any
|
|
||||||
* draw buffer contains neither fixed-point nor floating-point values.
|
|
||||||
* - The read buffer contains unsigned integer values and any draw buffer
|
|
||||||
* does not contain unsigned integer values.
|
|
||||||
* - The read buffer contains signed integer values and any draw buffer
|
|
||||||
* does not contain signed integer values."
|
|
||||||
*/
|
|
||||||
static GLboolean
|
|
||||||
compatible_color_datatypes(mesa_format srcFormat, mesa_format dstFormat)
|
|
||||||
{
|
|
||||||
GLenum srcType = _mesa_get_format_datatype(srcFormat);
|
|
||||||
GLenum dstType = _mesa_get_format_datatype(dstFormat);
|
|
||||||
|
|
||||||
if (srcType != GL_INT && srcType != GL_UNSIGNED_INT) {
|
|
||||||
assert(srcType == GL_UNSIGNED_NORMALIZED ||
|
|
||||||
srcType == GL_SIGNED_NORMALIZED ||
|
|
||||||
srcType == GL_FLOAT);
|
|
||||||
/* Boil any of those types down to GL_FLOAT */
|
|
||||||
srcType = GL_FLOAT;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (dstType != GL_INT && dstType != GL_UNSIGNED_INT) {
|
|
||||||
assert(dstType == GL_UNSIGNED_NORMALIZED ||
|
|
||||||
dstType == GL_SIGNED_NORMALIZED ||
|
|
||||||
dstType == GL_FLOAT);
|
|
||||||
/* Boil any of those types down to GL_FLOAT */
|
|
||||||
dstType = GL_FLOAT;
|
|
||||||
}
|
|
||||||
|
|
||||||
return srcType == dstType;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static GLboolean
|
|
||||||
compatible_resolve_formats(const struct gl_renderbuffer *readRb,
|
|
||||||
const struct gl_renderbuffer *drawRb)
|
|
||||||
{
|
|
||||||
GLenum readFormat, drawFormat;
|
|
||||||
|
|
||||||
/* The simple case where we know the backing Mesa formats are the same.
|
|
||||||
*/
|
|
||||||
if (_mesa_get_srgb_format_linear(readRb->Format) ==
|
|
||||||
_mesa_get_srgb_format_linear(drawRb->Format)) {
|
|
||||||
return GL_TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* The Mesa formats are different, so we must check whether the internal
|
|
||||||
* formats are compatible.
|
|
||||||
*
|
|
||||||
* Under some circumstances, the user may request e.g. two GL_RGBA8
|
|
||||||
* textures and get two entirely different Mesa formats like RGBA8888 and
|
|
||||||
* ARGB8888. Drivers behaving like that should be able to cope with
|
|
||||||
* non-matching formats by themselves, because it's not the user's fault.
|
|
||||||
*
|
|
||||||
* Blits between linear and sRGB formats are also allowed.
|
|
||||||
*/
|
|
||||||
readFormat = _mesa_get_nongeneric_internalformat(readRb->InternalFormat);
|
|
||||||
drawFormat = _mesa_get_nongeneric_internalformat(drawRb->InternalFormat);
|
|
||||||
readFormat = _mesa_get_linear_internalformat(readFormat);
|
|
||||||
drawFormat = _mesa_get_linear_internalformat(drawFormat);
|
|
||||||
|
|
||||||
if (readFormat == drawFormat) {
|
|
||||||
return GL_TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
return GL_FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
static GLboolean
|
|
||||||
is_valid_blit_filter(const struct gl_context *ctx, GLenum filter)
|
|
||||||
{
|
|
||||||
switch (filter) {
|
|
||||||
case GL_NEAREST:
|
|
||||||
case GL_LINEAR:
|
|
||||||
return true;
|
|
||||||
case GL_SCALED_RESOLVE_FASTEST_EXT:
|
|
||||||
case GL_SCALED_RESOLVE_NICEST_EXT:
|
|
||||||
return ctx->Extensions.EXT_framebuffer_multisample_blit_scaled;
|
|
||||||
default:
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Blit rectangular region, optionally from one framebuffer to another.
|
|
||||||
*
|
|
||||||
* Note, if the src buffer is multisampled and the dest is not, this is
|
|
||||||
* when the samples must be resolved to a single color.
|
|
||||||
*/
|
|
||||||
void GLAPIENTRY
|
|
||||||
_mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
|
|
||||||
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
|
|
||||||
GLbitfield mask, GLenum filter)
|
|
||||||
{
|
|
||||||
const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
|
|
||||||
GL_DEPTH_BUFFER_BIT |
|
|
||||||
GL_STENCIL_BUFFER_BIT);
|
|
||||||
const struct gl_framebuffer *readFb, *drawFb;
|
|
||||||
GET_CURRENT_CONTEXT(ctx);
|
|
||||||
|
|
||||||
FLUSH_VERTICES(ctx, 0);
|
|
||||||
|
|
||||||
if (MESA_VERBOSE & VERBOSE_API)
|
|
||||||
_mesa_debug(ctx,
|
|
||||||
"glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n",
|
|
||||||
srcX0, srcY0, srcX1, srcY1,
|
|
||||||
dstX0, dstY0, dstX1, dstY1,
|
|
||||||
mask, _mesa_lookup_enum_by_nr(filter));
|
|
||||||
|
|
||||||
if (ctx->NewState) {
|
|
||||||
_mesa_update_state(ctx);
|
|
||||||
}
|
|
||||||
|
|
||||||
readFb = ctx->ReadBuffer;
|
|
||||||
drawFb = ctx->DrawBuffer;
|
|
||||||
|
|
||||||
if (!readFb || !drawFb) {
|
|
||||||
/* This will normally never happen but someday we may want to
|
|
||||||
* support MakeCurrent() with no drawables.
|
|
||||||
*/
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* check for complete framebuffers */
|
|
||||||
if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
|
|
||||||
readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
|
|
||||||
"glBlitFramebufferEXT(incomplete draw/read buffers)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!is_valid_blit_filter(ctx, filter)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(%s)",
|
|
||||||
_mesa_lookup_enum_by_nr(filter));
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if ((filter == GL_SCALED_RESOLVE_FASTEST_EXT ||
|
|
||||||
filter == GL_SCALED_RESOLVE_NICEST_EXT) &&
|
|
||||||
(readFb->Visual.samples == 0 || drawFb->Visual.samples > 0)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT(%s)",
|
|
||||||
_mesa_lookup_enum_by_nr(filter));
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (mask & ~legalMaskBits) {
|
|
||||||
_mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* depth/stencil must be blitted with nearest filtering */
|
|
||||||
if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
|
|
||||||
&& filter != GL_NEAREST) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* get color read/draw renderbuffers */
|
|
||||||
if (mask & GL_COLOR_BUFFER_BIT) {
|
|
||||||
const GLuint numColorDrawBuffers = ctx->DrawBuffer->_NumColorDrawBuffers;
|
|
||||||
const struct gl_renderbuffer *colorReadRb = readFb->_ColorReadBuffer;
|
|
||||||
const struct gl_renderbuffer *colorDrawRb = NULL;
|
|
||||||
GLuint i;
|
|
||||||
|
|
||||||
/* From the EXT_framebuffer_object spec:
|
|
||||||
*
|
|
||||||
* "If a buffer is specified in <mask> and does not exist in both
|
|
||||||
* the read and draw framebuffers, the corresponding bit is silently
|
|
||||||
* ignored."
|
|
||||||
*/
|
|
||||||
if (!colorReadRb || numColorDrawBuffers == 0) {
|
|
||||||
mask &= ~GL_COLOR_BUFFER_BIT;
|
|
||||||
}
|
|
||||||
else {
|
|
||||||
for (i = 0; i < numColorDrawBuffers; i++) {
|
|
||||||
colorDrawRb = ctx->DrawBuffer->_ColorDrawBuffers[i];
|
|
||||||
if (!colorDrawRb)
|
|
||||||
continue;
|
|
||||||
|
|
||||||
/* Page 193 (page 205 of the PDF) in section 4.3.2 of the OpenGL
|
|
||||||
* ES 3.0.1 spec says:
|
|
||||||
*
|
|
||||||
* "If the source and destination buffers are identical, an
|
|
||||||
* INVALID_OPERATION error is generated. Different mipmap
|
|
||||||
* levels of a texture, different layers of a three-
|
|
||||||
* dimensional texture or two-dimensional array texture, and
|
|
||||||
* different faces of a cube map texture do not constitute
|
|
||||||
* identical buffers."
|
|
||||||
*/
|
|
||||||
if (_mesa_is_gles3(ctx) && (colorDrawRb == colorReadRb)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebuffer(source and destination color "
|
|
||||||
"buffer cannot be the same)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!compatible_color_datatypes(colorReadRb->Format,
|
|
||||||
colorDrawRb->Format)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebufferEXT(color buffer datatypes mismatch)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
/* extra checks for multisample copies... */
|
|
||||||
if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
|
|
||||||
/* color formats must match */
|
|
||||||
if (!compatible_resolve_formats(colorReadRb, colorDrawRb)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebufferEXT(bad src/dst multisample pixel formats)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (filter != GL_NEAREST) {
|
|
||||||
/* From EXT_framebuffer_multisample_blit_scaled specification:
|
|
||||||
* "Calling BlitFramebuffer will result in an INVALID_OPERATION error
|
|
||||||
* if filter is not NEAREST and read buffer contains integer data."
|
|
||||||
*/
|
|
||||||
GLenum type = _mesa_get_format_datatype(colorReadRb->Format);
|
|
||||||
if (type == GL_INT || type == GL_UNSIGNED_INT) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebufferEXT(integer color type)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (mask & GL_STENCIL_BUFFER_BIT) {
|
|
||||||
struct gl_renderbuffer *readRb =
|
|
||||||
readFb->Attachment[BUFFER_STENCIL].Renderbuffer;
|
|
||||||
struct gl_renderbuffer *drawRb =
|
|
||||||
drawFb->Attachment[BUFFER_STENCIL].Renderbuffer;
|
|
||||||
|
|
||||||
/* From the EXT_framebuffer_object spec:
|
|
||||||
*
|
|
||||||
* "If a buffer is specified in <mask> and does not exist in both
|
|
||||||
* the read and draw framebuffers, the corresponding bit is silently
|
|
||||||
* ignored."
|
|
||||||
*/
|
|
||||||
if ((readRb == NULL) || (drawRb == NULL)) {
|
|
||||||
mask &= ~GL_STENCIL_BUFFER_BIT;
|
|
||||||
}
|
|
||||||
else {
|
|
||||||
int read_z_bits, draw_z_bits;
|
|
||||||
|
|
||||||
if (_mesa_is_gles3(ctx) && (drawRb == readRb)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebuffer(source and destination stencil "
|
|
||||||
"buffer cannot be the same)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (_mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
|
|
||||||
_mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
|
|
||||||
/* There is no need to check the stencil datatype here, because
|
|
||||||
* there is only one: GL_UNSIGNED_INT.
|
|
||||||
*/
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebuffer(stencil attachment format mismatch)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
read_z_bits = _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS);
|
|
||||||
draw_z_bits = _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS);
|
|
||||||
|
|
||||||
/* If both buffers also have depth data, the depth formats must match
|
|
||||||
* as well. If one doesn't have depth, it's not blitted, so we should
|
|
||||||
* ignore the depth format check.
|
|
||||||
*/
|
|
||||||
if (read_z_bits > 0 && draw_z_bits > 0 &&
|
|
||||||
(read_z_bits != draw_z_bits ||
|
|
||||||
_mesa_get_format_datatype(readRb->Format) !=
|
|
||||||
_mesa_get_format_datatype(drawRb->Format))) {
|
|
||||||
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebuffer"
|
|
||||||
"(stencil attachment depth format mismatch)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (mask & GL_DEPTH_BUFFER_BIT) {
|
|
||||||
struct gl_renderbuffer *readRb =
|
|
||||||
readFb->Attachment[BUFFER_DEPTH].Renderbuffer;
|
|
||||||
struct gl_renderbuffer *drawRb =
|
|
||||||
drawFb->Attachment[BUFFER_DEPTH].Renderbuffer;
|
|
||||||
|
|
||||||
/* From the EXT_framebuffer_object spec:
|
|
||||||
*
|
|
||||||
* "If a buffer is specified in <mask> and does not exist in both
|
|
||||||
* the read and draw framebuffers, the corresponding bit is silently
|
|
||||||
* ignored."
|
|
||||||
*/
|
|
||||||
if ((readRb == NULL) || (drawRb == NULL)) {
|
|
||||||
mask &= ~GL_DEPTH_BUFFER_BIT;
|
|
||||||
}
|
|
||||||
else {
|
|
||||||
int read_s_bit, draw_s_bit;
|
|
||||||
|
|
||||||
if (_mesa_is_gles3(ctx) && (drawRb == readRb)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebuffer(source and destination depth "
|
|
||||||
"buffer cannot be the same)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if ((_mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
|
|
||||||
_mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) ||
|
|
||||||
(_mesa_get_format_datatype(readRb->Format) !=
|
|
||||||
_mesa_get_format_datatype(drawRb->Format))) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebuffer(depth attachment format mismatch)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
read_s_bit = _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS);
|
|
||||||
draw_s_bit = _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS);
|
|
||||||
|
|
||||||
/* If both buffers also have stencil data, the stencil formats must
|
|
||||||
* match as well. If one doesn't have stencil, it's not blitted, so
|
|
||||||
* we should ignore the stencil format check.
|
|
||||||
*/
|
|
||||||
if (read_s_bit > 0 && draw_s_bit > 0 && read_s_bit != draw_s_bit) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebuffer"
|
|
||||||
"(depth attachment stencil bits mismatch)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
if (_mesa_is_gles3(ctx)) {
|
|
||||||
/* Page 194 (page 206 of the PDF) in section 4.3.2 of the OpenGL ES
|
|
||||||
* 3.0.1 spec says:
|
|
||||||
*
|
|
||||||
* "If SAMPLE_BUFFERS for the draw framebuffer is greater than zero,
|
|
||||||
* an INVALID_OPERATION error is generated."
|
|
||||||
*/
|
|
||||||
if (drawFb->Visual.samples > 0) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebuffer(destination samples must be 0)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Page 194 (page 206 of the PDF) in section 4.3.2 of the OpenGL ES
|
|
||||||
* 3.0.1 spec says:
|
|
||||||
*
|
|
||||||
* "If SAMPLE_BUFFERS for the read framebuffer is greater than zero,
|
|
||||||
* no copy is performed and an INVALID_OPERATION error is generated
|
|
||||||
* if the formats of the read and draw framebuffers are not
|
|
||||||
* identical or if the source and destination rectangles are not
|
|
||||||
* defined with the same (X0, Y0) and (X1, Y1) bounds."
|
|
||||||
*
|
|
||||||
* The format check was made above because desktop OpenGL has the same
|
|
||||||
* requirement.
|
|
||||||
*/
|
|
||||||
if (readFb->Visual.samples > 0
|
|
||||||
&& (srcX0 != dstX0 || srcY0 != dstY0
|
|
||||||
|| srcX1 != dstX1 || srcY1 != dstY1)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebuffer(bad src/dst multisample region)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
if (readFb->Visual.samples > 0 &&
|
|
||||||
drawFb->Visual.samples > 0 &&
|
|
||||||
readFb->Visual.samples != drawFb->Visual.samples) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebufferEXT(mismatched samples)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* extra checks for multisample copies... */
|
|
||||||
if ((readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) &&
|
|
||||||
(filter == GL_NEAREST || filter == GL_LINEAR)) {
|
|
||||||
/* src and dest region sizes must be the same */
|
|
||||||
if (abs(srcX1 - srcX0) != abs(dstX1 - dstX0) ||
|
|
||||||
abs(srcY1 - srcY0) != abs(dstY1 - dstY0)) {
|
|
||||||
_mesa_error(ctx, GL_INVALID_OPERATION,
|
|
||||||
"glBlitFramebufferEXT(bad src/dst multisample region sizes)");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Debug code */
|
|
||||||
if (DEBUG_BLIT) {
|
|
||||||
const struct gl_renderbuffer *colorReadRb = readFb->_ColorReadBuffer;
|
|
||||||
const struct gl_renderbuffer *colorDrawRb = NULL;
|
|
||||||
GLuint i = 0;
|
|
||||||
|
|
||||||
printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
|
|
||||||
" 0x%x, 0x%x)\n",
|
|
||||||
srcX0, srcY0, srcX1, srcY1,
|
|
||||||
dstX0, dstY0, dstX1, dstY1,
|
|
||||||
mask, filter);
|
|
||||||
if (colorReadRb) {
|
|
||||||
const struct gl_renderbuffer_attachment *att;
|
|
||||||
|
|
||||||
att = find_attachment(readFb, colorReadRb);
|
|
||||||
printf(" Src FBO %u RB %u (%dx%d) ",
|
|
||||||
readFb->Name, colorReadRb->Name,
|
|
||||||
colorReadRb->Width, colorReadRb->Height);
|
|
||||||
if (att && att->Texture) {
|
|
||||||
printf("Tex %u tgt 0x%x level %u face %u",
|
|
||||||
att->Texture->Name,
|
|
||||||
att->Texture->Target,
|
|
||||||
att->TextureLevel,
|
|
||||||
att->CubeMapFace);
|
|
||||||
}
|
|
||||||
printf("\n");
|
|
||||||
|
|
||||||
/* Print all active color render buffers */
|
|
||||||
for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
|
|
||||||
colorDrawRb = ctx->DrawBuffer->_ColorDrawBuffers[i];
|
|
||||||
if (!colorDrawRb)
|
|
||||||
continue;
|
|
||||||
|
|
||||||
att = find_attachment(drawFb, colorDrawRb);
|
|
||||||
printf(" Dst FBO %u RB %u (%dx%d) ",
|
|
||||||
drawFb->Name, colorDrawRb->Name,
|
|
||||||
colorDrawRb->Width, colorDrawRb->Height);
|
|
||||||
if (att && att->Texture) {
|
|
||||||
printf("Tex %u tgt 0x%x level %u face %u",
|
|
||||||
att->Texture->Name,
|
|
||||||
att->Texture->Target,
|
|
||||||
att->TextureLevel,
|
|
||||||
att->CubeMapFace);
|
|
||||||
}
|
|
||||||
printf("\n");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!mask ||
|
|
||||||
(srcX1 - srcX0) == 0 || (srcY1 - srcY0) == 0 ||
|
|
||||||
(dstX1 - dstX0) == 0 || (dstY1 - dstY0) == 0) {
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
ASSERT(ctx->Driver.BlitFramebuffer);
|
|
||||||
ctx->Driver.BlitFramebuffer(ctx,
|
|
||||||
srcX0, srcY0, srcX1, srcY1,
|
|
||||||
dstX0, dstY0, dstX1, dstY1,
|
|
||||||
mask, filter);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
static void
|
||||||
invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
|
invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
|
||||||
const GLenum *attachments, GLint x, GLint y,
|
const GLenum *attachments, GLint x, GLint y,
|
||||||
|
|||||||
@@ -206,11 +206,6 @@ extern void GLAPIENTRY
|
|||||||
_mesa_GenerateMipmap(GLenum target);
|
_mesa_GenerateMipmap(GLenum target);
|
||||||
|
|
||||||
|
|
||||||
extern void GLAPIENTRY
|
|
||||||
_mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
|
|
||||||
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
|
|
||||||
GLbitfield mask, GLenum filter);
|
|
||||||
|
|
||||||
extern void GLAPIENTRY
|
extern void GLAPIENTRY
|
||||||
_mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
|
_mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
|
||||||
const GLenum *attachments, GLint x, GLint y,
|
const GLenum *attachments, GLint x, GLint y,
|
||||||
|
|||||||
Reference in New Issue
Block a user