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authorKeith Whitwell <keithw@vmware.com>2009-02-02 12:17:01 +0000
committerKeith Whitwell <keithw@vmware.com>2009-02-02 12:17:01 +0000
commite4d1757f81323636e99abc5fff411d42e19e901a (patch)
tree4fd889e01445ce7c79688fa51dc78e9ad97be8c4 /src/mesa/state_tracker/wgl/stw_wgl_arbpixelformat.c
parent59edbc70cd1042a884e7d153ba547c2f7f87318d (diff)
parenta38b8213ff1b99b73aae884e7b90be3d1999e3bf (diff)
Merge branch 'gallium-wgl-rework' into gallium-0.2
Conflicts: src/gallium/state_trackers/wgl/shared/stw_public.h
Diffstat (limited to 'src/mesa/state_tracker/wgl/stw_wgl_arbpixelformat.c')
-rw-r--r--src/mesa/state_tracker/wgl/stw_wgl_arbpixelformat.c513
1 files changed, 0 insertions, 513 deletions
diff --git a/src/mesa/state_tracker/wgl/stw_wgl_arbpixelformat.c b/src/mesa/state_tracker/wgl/stw_wgl_arbpixelformat.c
deleted file mode 100644
index 344bb15d3c..0000000000
--- a/src/mesa/state_tracker/wgl/stw_wgl_arbpixelformat.c
+++ /dev/null
@@ -1,513 +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.
- *
- **************************************************************************/
-
-#include <windows.h>
-
-#include "pipe/p_compiler.h"
-#include "util/u_memory.h"
-#include "stw_pixelformat.h"
-#include "stw_wgl_arbmultisample.h"
-#include "stw_wgl_arbpixelformat.h"
-
-#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000
-#define WGL_DRAW_TO_WINDOW_ARB 0x2001
-#define WGL_DRAW_TO_BITMAP_ARB 0x2002
-#define WGL_ACCELERATION_ARB 0x2003
-#define WGL_NEED_PALETTE_ARB 0x2004
-#define WGL_NEED_SYSTEM_PALETTE_ARB 0x2005
-#define WGL_SWAP_LAYER_BUFFERS_ARB 0x2006
-#define WGL_SWAP_METHOD_ARB 0x2007
-#define WGL_NUMBER_OVERLAYS_ARB 0x2008
-#define WGL_NUMBER_UNDERLAYS_ARB 0x2009
-#define WGL_TRANSPARENT_ARB 0x200A
-#define WGL_TRANSPARENT_RED_VALUE_ARB 0x2037
-#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038
-#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039
-#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A
-#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B
-#define WGL_SHARE_DEPTH_ARB 0x200C
-#define WGL_SHARE_STENCIL_ARB 0x200D
-#define WGL_SHARE_ACCUM_ARB 0x200E
-#define WGL_SUPPORT_GDI_ARB 0x200F
-#define WGL_SUPPORT_OPENGL_ARB 0x2010
-#define WGL_DOUBLE_BUFFER_ARB 0x2011
-#define WGL_STEREO_ARB 0x2012
-#define WGL_PIXEL_TYPE_ARB 0x2013
-#define WGL_COLOR_BITS_ARB 0x2014
-#define WGL_RED_BITS_ARB 0x2015
-#define WGL_RED_SHIFT_ARB 0x2016
-#define WGL_GREEN_BITS_ARB 0x2017
-#define WGL_GREEN_SHIFT_ARB 0x2018
-#define WGL_BLUE_BITS_ARB 0x2019
-#define WGL_BLUE_SHIFT_ARB 0x201A
-#define WGL_ALPHA_BITS_ARB 0x201B
-#define WGL_ALPHA_SHIFT_ARB 0x201C
-#define WGL_ACCUM_BITS_ARB 0x201D
-#define WGL_ACCUM_RED_BITS_ARB 0x201E
-#define WGL_ACCUM_GREEN_BITS_ARB 0x201F
-#define WGL_ACCUM_BLUE_BITS_ARB 0x2020
-#define WGL_ACCUM_ALPHA_BITS_ARB 0x2021
-#define WGL_DEPTH_BITS_ARB 0x2022
-#define WGL_STENCIL_BITS_ARB 0x2023
-#define WGL_AUX_BUFFERS_ARB 0x2024
-
-#define WGL_NO_ACCELERATION_ARB 0x2025
-#define WGL_GENERIC_ACCELERATION_ARB 0x2026
-#define WGL_FULL_ACCELERATION_ARB 0x2027
-
-#define WGL_SWAP_EXCHANGE_ARB 0x2028
-#define WGL_SWAP_COPY_ARB 0x2029
-#define WGL_SWAP_UNDEFINED_ARB 0x202A
-
-#define WGL_TYPE_RGBA_ARB 0x202B
-#define WGL_TYPE_COLORINDEX_ARB 0x202C
-
-static boolean
-query_attrib(
- int iPixelFormat,
- int iLayerPlane,
- int attrib,
- int *pvalue )
-{
- uint count;
- uint index;
- const struct pixelformat_info *pf;
-
- count = pixelformat_get_extended_count();
-
- if (attrib == WGL_NUMBER_PIXEL_FORMATS_ARB) {
- *pvalue = (int) count;
- return TRUE;
- }
-
- index = (uint) iPixelFormat - 1;
- if (index >= count)
- return FALSE;
-
- pf = pixelformat_get_info( index );
-
- switch (attrib) {
- case WGL_DRAW_TO_WINDOW_ARB:
- *pvalue = TRUE;
- return TRUE;
-
- case WGL_DRAW_TO_BITMAP_ARB:
- *pvalue = FALSE;
- return TRUE;
-
- case WGL_NEED_PALETTE_ARB:
- *pvalue = FALSE;
- return TRUE;
-
- case WGL_NEED_SYSTEM_PALETTE_ARB:
- *pvalue = FALSE;
- return TRUE;
-
- case WGL_SWAP_METHOD_ARB:
- if (pf->flags & PF_FLAG_DOUBLEBUFFER)
- *pvalue = WGL_SWAP_COPY_ARB;
- else
- *pvalue = WGL_SWAP_UNDEFINED_ARB;
- return TRUE;
-
- case WGL_SWAP_LAYER_BUFFERS_ARB:
- *pvalue = FALSE;
- return TRUE;
-
- case WGL_NUMBER_OVERLAYS_ARB:
- *pvalue = 0;
- return TRUE;
-
- case WGL_NUMBER_UNDERLAYS_ARB:
- *pvalue = 0;
- return TRUE;
- }
-
- if (iLayerPlane != 0)
- return FALSE;
-
- switch (attrib) {
- case WGL_ACCELERATION_ARB:
- *pvalue = WGL_FULL_ACCELERATION_ARB;
- break;
-
- case WGL_TRANSPARENT_ARB:
- *pvalue = FALSE;
- break;
-
- case WGL_TRANSPARENT_RED_VALUE_ARB:
- case WGL_TRANSPARENT_GREEN_VALUE_ARB:
- case WGL_TRANSPARENT_BLUE_VALUE_ARB:
- case WGL_TRANSPARENT_ALPHA_VALUE_ARB:
- case WGL_TRANSPARENT_INDEX_VALUE_ARB:
- break;
-
- case WGL_SHARE_DEPTH_ARB:
- case WGL_SHARE_STENCIL_ARB:
- case WGL_SHARE_ACCUM_ARB:
- *pvalue = TRUE;
- break;
-
- case WGL_SUPPORT_GDI_ARB:
- *pvalue = FALSE;
- break;
-
- case WGL_SUPPORT_OPENGL_ARB:
- *pvalue = TRUE;
- break;
-
- case WGL_DOUBLE_BUFFER_ARB:
- if (pf->flags & PF_FLAG_DOUBLEBUFFER)
- *pvalue = TRUE;
- else
- *pvalue = FALSE;
- break;
-
- case WGL_STEREO_ARB:
- *pvalue = FALSE;
- break;
-
- case WGL_PIXEL_TYPE_ARB:
- *pvalue = WGL_TYPE_RGBA_ARB;
- break;
-
- case WGL_COLOR_BITS_ARB:
- *pvalue = (int) (pf->color.redbits + pf->color.greenbits + pf->color.bluebits);
- break;
-
- case WGL_RED_BITS_ARB:
- *pvalue = (int) pf->color.redbits;
- break;
-
- case WGL_RED_SHIFT_ARB:
- *pvalue = (int) pf->color.redshift;
- break;
-
- case WGL_GREEN_BITS_ARB:
- *pvalue = (int) pf->color.greenbits;
- break;
-
- case WGL_GREEN_SHIFT_ARB:
- *pvalue = (int) pf->color.greenshift;
- break;
-
- case WGL_BLUE_BITS_ARB:
- *pvalue = (int) pf->color.bluebits;
- break;
-
- case WGL_BLUE_SHIFT_ARB:
- *pvalue = (int) pf->color.blueshift;
- break;
-
- case WGL_ALPHA_BITS_ARB:
- *pvalue = (int) pf->alpha.alphabits;
- break;
-
- case WGL_ALPHA_SHIFT_ARB:
- *pvalue = (int) pf->alpha.alphashift;
- break;
-
- case WGL_ACCUM_BITS_ARB:
- case WGL_ACCUM_RED_BITS_ARB:
- case WGL_ACCUM_GREEN_BITS_ARB:
- case WGL_ACCUM_BLUE_BITS_ARB:
- case WGL_ACCUM_ALPHA_BITS_ARB:
- *pvalue = 0;
- break;
-
- case WGL_DEPTH_BITS_ARB:
- *pvalue = (int) pf->depth.depthbits;
- break;
-
- case WGL_STENCIL_BITS_ARB:
- *pvalue = (int) pf->depth.stencilbits;
- break;
-
- case WGL_AUX_BUFFERS_ARB:
- *pvalue = 0;
- break;
-
- case WGL_SAMPLE_BUFFERS_ARB:
- if (pf->flags & PF_FLAG_MULTISAMPLED)
- *pvalue = wgl_query_sample_buffers();
- else
- *pvalue = 0;
- break;
-
- case WGL_SAMPLES_ARB:
- if (pf->flags & PF_FLAG_MULTISAMPLED)
- *pvalue = wgl_query_samples();
- else
- *pvalue = 0;
- break;
-
- default:
- return FALSE;
- }
-
- return TRUE;
-}
-
-struct attrib_match_info
-{
- int attribute;
- int weight;
- BOOL exact;
-};
-
-static struct attrib_match_info attrib_match[] = {
-
- /* WGL_ARB_pixel_format */
- { WGL_DRAW_TO_WINDOW_ARB, 0, TRUE },
- { WGL_DRAW_TO_BITMAP_ARB, 0, TRUE },
- { WGL_ACCELERATION_ARB, 0, TRUE },
- { WGL_NEED_PALETTE_ARB, 0, TRUE },
- { WGL_NEED_SYSTEM_PALETTE_ARB, 0, TRUE },
- { WGL_SWAP_LAYER_BUFFERS_ARB, 0, TRUE },
- { WGL_SWAP_METHOD_ARB, 0, TRUE },
- { WGL_NUMBER_OVERLAYS_ARB, 4, FALSE },
- { WGL_NUMBER_UNDERLAYS_ARB, 4, FALSE },
- /*{ WGL_SHARE_DEPTH_ARB, 0, TRUE },*/ /* no overlays -- ignore */
- /*{ WGL_SHARE_STENCIL_ARB, 0, TRUE },*/ /* no overlays -- ignore */
- /*{ WGL_SHARE_ACCUM_ARB, 0, TRUE },*/ /* no overlays -- ignore */
- { WGL_SUPPORT_GDI_ARB, 0, TRUE },
- { WGL_SUPPORT_OPENGL_ARB, 0, TRUE },
- { WGL_DOUBLE_BUFFER_ARB, 0, TRUE },
- { WGL_STEREO_ARB, 0, TRUE },
- { WGL_PIXEL_TYPE_ARB, 0, TRUE },
- { WGL_COLOR_BITS_ARB, 1, FALSE },
- { WGL_RED_BITS_ARB, 1, FALSE },
- { WGL_GREEN_BITS_ARB, 1, FALSE },
- { WGL_BLUE_BITS_ARB, 1, FALSE },
- { WGL_ALPHA_BITS_ARB, 1, FALSE },
- { WGL_ACCUM_BITS_ARB, 1, FALSE },
- { WGL_ACCUM_RED_BITS_ARB, 1, FALSE },
- { WGL_ACCUM_GREEN_BITS_ARB, 1, FALSE },
- { WGL_ACCUM_BLUE_BITS_ARB, 1, FALSE },
- { WGL_ACCUM_ALPHA_BITS_ARB, 1, FALSE },
- { WGL_DEPTH_BITS_ARB, 1, FALSE },
- { WGL_STENCIL_BITS_ARB, 1, FALSE },
- { WGL_AUX_BUFFERS_ARB, 2, FALSE },
-
- /* WGL_ARB_multisample */
- { WGL_SAMPLE_BUFFERS_ARB, 2, FALSE },
- { WGL_SAMPLES_ARB, 2, FALSE }
-};
-
-struct pixelformat_score
-{
- int points;
- uint index;
-};
-
-static BOOL
-score_pixelformats(
- struct pixelformat_score *scores,
- uint count,
- int attribute,
- int expected_value )
-{
- uint i;
- struct attrib_match_info *ami = NULL;
- uint index;
-
- /* Find out if a given attribute should be considered for score calculation.
- */
- for (i = 0; i < sizeof( attrib_match ) / sizeof( attrib_match[0] ); i++) {
- if (attrib_match[i].attribute == attribute) {
- ami = &attrib_match[i];
- break;
- }
- }
- if (ami == NULL)
- return TRUE;
-
- /* Iterate all pixelformats, query the requested attribute and calculate
- * score points.
- */
- for (index = 0; index < count; index++) {
- int actual_value;
-
- if (!query_attrib( index + 1, 0, attribute, &actual_value ))
- return FALSE;
-
- if (ami->exact) {
- /* For an exact match criteria, if the actual and expected values differ,
- * the score is set to 0 points, effectively removing the pixelformat
- * from a list of matching pixelformats.
- */
- if (actual_value != expected_value)
- scores[index].points = 0;
- }
- else {
- /* For a minimum match criteria, if the actual value is smaller than the expected
- * value, the pixelformat is rejected (score set to 0). However, if the actual
- * value is bigger, the pixelformat is given a penalty to favour pixelformats that
- * more closely match the expected values.
- */
- if (actual_value < expected_value)
- scores[index].points = 0;
- else if (actual_value > expected_value)
- scores[index].points -= (actual_value - expected_value) * ami->weight;
- }
- }
-
- return TRUE;
-}
-
-WINGDIAPI BOOL APIENTRY
-wglChoosePixelFormatARB(
- HDC hdc,
- const int *piAttribIList,
- const FLOAT *pfAttribFList,
- UINT nMaxFormats,
- int *piFormats,
- UINT *nNumFormats )
-{
- uint count;
- struct pixelformat_score *scores;
- uint i;
-
- *nNumFormats = 0;
-
- /* Allocate and initialize pixelformat score table -- better matches
- * have higher scores. Start with a high score and take out penalty
- * points for a mismatch when the match does not have to be exact.
- * Set a score to 0 if there is a mismatch for an exact match criteria.
- */
- count = pixelformat_get_extended_count();
- scores = (struct pixelformat_score *) MALLOC( count * sizeof( struct pixelformat_score ) );
- if (scores == NULL)
- return FALSE;
- for (i = 0; i < count; i++) {
- scores[i].points = 0x7fffffff;
- scores[i].index = i;
- }
-
- /* Given the attribute list calculate a score for each pixelformat.
- */
- if (piAttribIList != NULL) {
- while (*piAttribIList != 0) {
- if (!score_pixelformats( scores, count, piAttribIList[0], piAttribIList[1] )) {
- FREE( scores );
- return FALSE;
- }
- piAttribIList += 2;
- }
- }
- if (pfAttribFList != NULL) {
- while (*pfAttribFList != 0) {
- if (!score_pixelformats( scores, count, (int) pfAttribFList[0], (int) pfAttribFList[1] )) {
- FREE( scores );
- return FALSE;
- }
- pfAttribFList += 2;
- }
- }
-
- /* Bubble-sort the resulting scores. Pixelformats with higher scores go first.
- * TODO: Find out if there are any patent issues with it.
- */
- if (count > 1) {
- uint n = count;
- boolean swapped;
-
- do {
- swapped = FALSE;
- for (i = 1; i < n; i++) {
- if (scores[i - 1].points < scores[i].points) {
- struct pixelformat_score score = scores[i - 1];
-
- scores[i - 1] = scores[i];
- scores[i] = score;
- swapped = TRUE;
- }
- }
- n--;
- }
- while (swapped);
- }
-
- /* Return a list of pixelformats that are the best match.
- * Reject pixelformats with non-positive scores.
- */
- for (i = 0; i < count; i++) {
- if (scores[i].points > 0) {
- if (*nNumFormats < nMaxFormats)
- piFormats[*nNumFormats] = scores[i].index + 1;
- (*nNumFormats)++;
- }
- }
-
- FREE( scores );
- return TRUE;
-}
-
-WINGDIAPI BOOL APIENTRY
-wglGetPixelFormatAttribfvARB(
- HDC hdc,
- int iPixelFormat,
- int iLayerPlane,
- UINT nAttributes,
- const int *piAttributes,
- FLOAT *pfValues )
-{
- UINT i;
-
- (void) hdc;
-
- for (i = 0; i < nAttributes; i++) {
- int value;
-
- if (!query_attrib( iPixelFormat, iLayerPlane, piAttributes[i], &value ))
- return FALSE;
- pfValues[i] = (FLOAT) value;
- }
-
- return TRUE;
-}
-
-WINGDIAPI BOOL APIENTRY
-wglGetPixelFormatAttribivARB(
- HDC hdc,
- int iPixelFormat,
- int iLayerPlane,
- UINT nAttributes,
- const int *piAttributes,
- int *piValues )
-{
- UINT i;
-
- (void) hdc;
-
- for (i = 0; i < nAttributes; i++) {
- if (!query_attrib( iPixelFormat, iLayerPlane, piAttributes[i], &piValues[i] ))
- return FALSE;
- }
-
- return TRUE;
-}