1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mtypes.h"
29 #include "main/context.h"
31 #include "pipe/p_format.h"
32 #include "pipe/p_defines.h"
33 #include "pipe/p_screen.h"
35 #include "util/u_format.h"
36 #include "util/u_debug.h"
39 #include "stw_device.h"
40 #include "stw_pixelformat.h"
44 struct stw_pf_color_info
46 enum pipe_format format;
61 struct stw_pf_depth_info
63 enum pipe_format format;
66 unsigned char stencil;
71 /* NOTE: order matters, since in otherwise equal circumstances the first
72 * format listed will get chosen */
74 static const struct stw_pf_color_info
77 { PIPE_FORMAT_B8G8R8X8_UNORM, { 8, 8, 8, 0}, {16, 8, 0, 0} },
78 { PIPE_FORMAT_X8R8G8B8_UNORM, { 8, 8, 8, 0}, { 8, 16, 24, 0} },
79 { PIPE_FORMAT_B5G6R5_UNORM, { 5, 6, 5, 0}, {11, 5, 0, 0} },
81 { PIPE_FORMAT_B8G8R8A8_UNORM, { 8, 8, 8, 8}, {16, 8, 0, 24} },
82 { PIPE_FORMAT_A8R8G8B8_UNORM, { 8, 8, 8, 8}, { 8, 16, 24, 0} },
84 { PIPE_FORMAT_R10G10B10A2_UNORM, {10, 10, 10, 2}, { 0, 10, 20, 30} },
86 { PIPE_FORMAT_B5G5R5A1_UNORM, { 5, 5, 5, 1}, {10, 5, 0, 15} },
87 { PIPE_FORMAT_B4G4R4A4_UNORM, { 4, 4, 4, 4}, {16, 4, 0, 12} }
91 static const struct stw_pf_depth_info
92 stw_pf_depth_stencil[] = {
94 { PIPE_FORMAT_Z32_UNORM, {32, 0} },
95 { PIPE_FORMAT_X8Z24_UNORM, {24, 0} },
96 { PIPE_FORMAT_Z24X8_UNORM, {24, 0} },
97 { PIPE_FORMAT_Z16_UNORM, {16, 0} },
98 /* combined depth-stencil */
99 { PIPE_FORMAT_Z24_UNORM_S8_USCALED, {24, 8} },
100 { PIPE_FORMAT_S8_USCALED_Z24_UNORM, {24, 8} }
105 stw_pf_doublebuffer[] = {
112 stw_pf_multisample[] = {
120 struct stw_device *stw_dev,
121 const struct stw_pf_color_info *color,
122 const struct stw_pf_depth_info *depth,
124 boolean doublebuffer,
127 boolean extended = FALSE;
128 struct stw_pixelformat_info *pfi;
130 assert(stw_dev->pixelformat_extended_count < STW_MAX_PIXELFORMATS);
131 if(stw_dev->pixelformat_extended_count >= STW_MAX_PIXELFORMATS)
134 assert(util_format_get_component_bits(color->format, UTIL_FORMAT_COLORSPACE_RGB, 0) == color->bits.red);
135 assert(util_format_get_component_bits(color->format, UTIL_FORMAT_COLORSPACE_RGB, 1) == color->bits.green);
136 assert(util_format_get_component_bits(color->format, UTIL_FORMAT_COLORSPACE_RGB, 2) == color->bits.blue);
137 assert(util_format_get_component_bits(color->format, UTIL_FORMAT_COLORSPACE_RGB, 3) == color->bits.alpha);
138 assert(util_format_get_component_bits(depth->format, UTIL_FORMAT_COLORSPACE_ZS, 0) == depth->bits.depth);
139 assert(util_format_get_component_bits(depth->format, UTIL_FORMAT_COLORSPACE_ZS, 1) == depth->bits.stencil);
141 pfi = &stw_dev->pixelformats[stw_dev->pixelformat_extended_count];
143 memset(pfi, 0, sizeof *pfi);
145 pfi->color_format = color->format;
146 pfi->depth_stencil_format = depth->format;
148 pfi->pfd.nSize = sizeof pfi->pfd;
149 pfi->pfd.nVersion = 1;
151 pfi->pfd.dwFlags = PFD_SUPPORT_OPENGL;
153 /* TODO: also support non-native pixel formats */
154 pfi->pfd.dwFlags |= PFD_DRAW_TO_WINDOW;
156 /* See http://www.opengl.org/pipeline/article/vol003_7/ */
157 pfi->pfd.dwFlags |= PFD_SUPPORT_COMPOSITION;
160 pfi->pfd.dwFlags |= PFD_DOUBLEBUFFER | PFD_SWAP_COPY;
162 pfi->pfd.iPixelType = PFD_TYPE_RGBA;
164 pfi->pfd.cColorBits = color->bits.red + color->bits.green + color->bits.blue + color->bits.alpha;
165 pfi->pfd.cRedBits = color->bits.red;
166 pfi->pfd.cRedShift = color->shift.red;
167 pfi->pfd.cGreenBits = color->bits.green;
168 pfi->pfd.cGreenShift = color->shift.green;
169 pfi->pfd.cBlueBits = color->bits.blue;
170 pfi->pfd.cBlueShift = color->shift.blue;
171 pfi->pfd.cAlphaBits = color->bits.alpha;
172 pfi->pfd.cAlphaShift = color->shift.alpha;
173 pfi->pfd.cAccumBits = 4*accum;
174 pfi->pfd.cAccumRedBits = accum;
175 pfi->pfd.cAccumGreenBits = accum;
176 pfi->pfd.cAccumBlueBits = accum;
177 pfi->pfd.cAccumAlphaBits = accum;
178 pfi->pfd.cDepthBits = depth->bits.depth;
179 pfi->pfd.cStencilBits = depth->bits.stencil;
180 pfi->pfd.cAuxBuffers = 0;
181 pfi->pfd.iLayerType = 0;
182 pfi->pfd.bReserved = 0;
183 pfi->pfd.dwLayerMask = 0;
184 pfi->pfd.dwVisibleMask = 0;
185 pfi->pfd.dwDamageMask = 0;
188 pfi->numSampleBuffers = 1;
189 pfi->numSamples = samples;
193 ++stw_dev->pixelformat_extended_count;
196 ++stw_dev->pixelformat_count;
197 assert(stw_dev->pixelformat_count == stw_dev->pixelformat_extended_count);
202 stw_pixelformat_init( void )
204 struct pipe_screen *screen = stw_dev->screen;
207 assert( !stw_dev->pixelformat_count );
208 assert( !stw_dev->pixelformat_extended_count );
210 for(i = 0; i < Elements(stw_pf_multisample); ++i) {
211 unsigned samples = stw_pf_multisample[i];
213 /* FIXME: re-enabled MSAA when we can query it */
217 for(j = 0; j < Elements(stw_pf_color); ++j) {
218 const struct stw_pf_color_info *color = &stw_pf_color[j];
220 if(!screen->is_format_supported(screen, color->format, PIPE_TEXTURE_2D,
221 PIPE_BIND_RENDER_TARGET |
222 PIPE_BIND_DISPLAY_TARGET, 0))
225 for(k = 0; k < Elements(stw_pf_doublebuffer); ++k) {
226 unsigned doublebuffer = stw_pf_doublebuffer[k];
228 for(l = 0; l < Elements(stw_pf_depth_stencil); ++l) {
229 const struct stw_pf_depth_info *depth = &stw_pf_depth_stencil[l];
231 if(!screen->is_format_supported(screen, depth->format, PIPE_TEXTURE_2D,
232 PIPE_BIND_DEPTH_STENCIL, 0))
235 stw_pixelformat_add( stw_dev, color, depth, 0, doublebuffer, samples );
236 stw_pixelformat_add( stw_dev, color, depth, 16, doublebuffer, samples );
242 assert( stw_dev->pixelformat_count <= stw_dev->pixelformat_extended_count );
243 assert( stw_dev->pixelformat_extended_count <= STW_MAX_PIXELFORMATS );
247 stw_pixelformat_get_count( void )
249 return stw_dev->pixelformat_count;
253 stw_pixelformat_get_extended_count( void )
255 return stw_dev->pixelformat_extended_count;
258 const struct stw_pixelformat_info *
259 stw_pixelformat_get_info( uint index )
261 assert( index < stw_dev->pixelformat_extended_count );
263 return &stw_dev->pixelformats[index];
268 stw_pixelformat_visual(GLvisual *visual,
269 const struct stw_pixelformat_info *pfi )
271 memset(visual, 0, sizeof *visual);
272 _mesa_initialize_visual(
274 (pfi->pfd.dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE,
275 (pfi->pfd.dwFlags & PFD_STEREO) ? GL_TRUE : GL_FALSE,
281 pfi->pfd.cStencilBits,
282 pfi->pfd.cAccumRedBits,
283 pfi->pfd.cAccumGreenBits,
284 pfi->pfd.cAccumBlueBits,
285 pfi->pfd.cAccumAlphaBits,
291 DrvDescribePixelFormat(
295 PIXELFORMATDESCRIPTOR *ppfd )
299 const struct stw_pixelformat_info *pfi;
306 count = stw_pixelformat_get_extended_count();
307 index = (uint) iPixelFormat - 1;
311 if (index >= count || cjpfd != sizeof( PIXELFORMATDESCRIPTOR ))
314 pfi = stw_pixelformat_get_info( index );
316 memcpy(ppfd, &pfi->pfd, sizeof( PIXELFORMATDESCRIPTOR ));
322 DrvDescribeLayerPlane(
327 LPLAYERPLANEDESCRIPTOR plpd )
334 DrvGetLayerPaletteEntries(
346 DrvSetLayerPaletteEntries(
351 CONST COLORREF *pcr )
358 DrvRealizeLayerPalette(
367 /* Only used by the wgl code, but have it here to avoid exporting the
368 * pixelformat.h functionality.
370 int stw_pixelformat_choose( HDC hdc,
371 CONST PIXELFORMATDESCRIPTOR *ppfd )
380 count = stw_pixelformat_get_count();
384 for (index = 0; index < count; index++) {
386 const struct stw_pixelformat_info *pfi = stw_pixelformat_get_info( index );
388 if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) &&
389 !!(ppfd->dwFlags & PFD_DOUBLEBUFFER) !=
390 !!(pfi->pfd.dwFlags & PFD_DOUBLEBUFFER))
393 /* FIXME: Take in account individual channel bits */
394 if (ppfd->cColorBits != pfi->pfd.cColorBits)
397 if (ppfd->cDepthBits != pfi->pfd.cDepthBits)
400 if (ppfd->cStencilBits != pfi->pfd.cStencilBits)
403 if (ppfd->cAlphaBits != pfi->pfd.cAlphaBits)
406 if (delta < bestdelta) {
414 if (bestindex == count)
417 return bestindex + 1;