diff options
Diffstat (limited to 'src/mesa/state_tracker/wgl/stw_wgl_arbpixelformat.c')
| -rw-r--r-- | src/mesa/state_tracker/wgl/stw_wgl_arbpixelformat.c | 513 |
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; -} |