From cd6b8dd9e82fedc55d033131fbc0f8ee950567c8 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 9 Dec 2009 10:08:07 -0800 Subject: mesa: Move OES_read_format support from drivers into the core. The assertion is that the correct read type to be using is the native type of the underlying read renderbuffer. For some fallback paths, this may be worse than GL_RGBA/GL_UNSIGNED_BYTE for reads today, but it gets all drivers the expected GL_BGRA/GL_UNSIGNED_BYTE for ARGB8888 or GL_BGR//GL_UNSIGNED_SHORT_5_6_5_REV for rgb565 with no work. This fixes the intel (and other) DRI drivers to report read formats that should hit blit PBO readpixels paths. --- src/mesa/state_tracker/st_cb_get.c | 97 -------------------------------------- 1 file changed, 97 deletions(-) delete mode 100644 src/mesa/state_tracker/st_cb_get.c (limited to 'src/mesa/state_tracker/st_cb_get.c') diff --git a/src/mesa/state_tracker/st_cb_get.c b/src/mesa/state_tracker/st_cb_get.c deleted file mode 100644 index e7d7f03bc9..0000000000 --- a/src/mesa/state_tracker/st_cb_get.c +++ /dev/null @@ -1,97 +0,0 @@ -/************************************************************************** - * - * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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, sub license, 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 (including the - * next paragraph) 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. - * - **************************************************************************/ - - -/** - * glGet functions - * - * \author Brian Paul - */ - -#include "main/imports.h" -#include "main/context.h" - -#include "pipe/p_defines.h" - -#include "st_cb_fbo.h" -#include "st_cb_get.h" - - - -/** - * Examine the current color read buffer format to determine - * which GL pixel format/type combo is the best match. - */ -static void -get_preferred_read_format_type(GLcontext *ctx, GLint *format, GLint *type) -{ - struct gl_framebuffer *fb = ctx->ReadBuffer; - struct st_renderbuffer *strb = st_renderbuffer(fb->_ColorReadBuffer); - - /* defaults */ - *format = ctx->Const.ColorReadFormat; - *type = ctx->Const.ColorReadType; - - if (strb) { - /* XXX could add more cases here... */ - if (strb->format == PIPE_FORMAT_A8R8G8B8_UNORM) { - *format = GL_BGRA; - if (_mesa_little_endian()) - *type = GL_UNSIGNED_INT_8_8_8_8_REV; - else - *type = GL_UNSIGNED_INT_8_8_8_8; - } - } -} - - -/** - * We only intercept the OES preferred ReadPixels format/type. - * Everything else goes to the default _mesa_GetIntegerv. - */ -static GLboolean -st_GetIntegerv(GLcontext *ctx, GLenum pname, GLint *params) -{ - GLint dummy; - - switch (pname) { - case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES: - get_preferred_read_format_type(ctx, &dummy, params); - return GL_TRUE; - case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES: - get_preferred_read_format_type(ctx, params, &dummy); - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -void st_init_get_functions(struct dd_function_table *functions) -{ - functions->GetIntegerv = st_GetIntegerv; -} -- cgit v1.2.3