1 /*
2 * Copyright (c) 2007, 2008 Apple Inc.
3 * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved.
4 * Copyright (c) 2002 Greg Parker. All Rights Reserved.
5 *
6 * Portions of this file are copied from Mesa's xf86glx.c,
7 * which contains the following copyright:
8 *
9 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
10 * All Rights Reserved.
11 *
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the "Software"),
14 * to deal in the Software without restriction, including without limitation
15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16 * and/or sell copies of the Software, and to permit persons to whom the
17 * Software is furnished to do so, subject to the following conditions:
18 *
19 * The above copyright notice and this permission notice shall be included in
20 * all copies or substantial portions of the Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25 * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
26 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
27 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28 * DEALINGS IN THE SOFTWARE.
29 */
30
31 #ifdef HAVE_DIX_CONFIG_H
32 #include <dix-config.h>
33 #endif
34
35 #include "dri.h"
36
37 #include <OpenGL/OpenGL.h>
38 #include <OpenGL/gl.h>
39 #include <OpenGL/glext.h>
40 #include <OpenGL/CGLContext.h>
41
42 #include <GL/glxproto.h>
43 #include <windowstr.h>
44 #include <resource.h>
45 #include <GL/glxint.h>
46 #include <GL/glxtokens.h>
47 #include <scrnintstr.h>
48 #include <glxserver.h>
49 #include <glxscreens.h>
50 #include <glxdrawable.h>
51 #include <glxcontext.h>
52 #include <glxext.h>
53 #include <glxutil.h>
54
55 #include "capabilities.h"
56 #include "visualConfigs.h"
57 #include "darwinfb.h"
58
59 /* Based originally on code from indirect.c which was based on code from i830_dri.c. */
__glXAquaCreateVisualConfigs(int * numConfigsPtr,int screenNumber)60 __GLXconfig *__glXAquaCreateVisualConfigs(int *numConfigsPtr, int screenNumber) {
61 int numConfigs = 0;
62 __GLXconfig *visualConfigs, *c, *l;
63 struct glCapabilities caps;
64 struct glCapabilitiesConfig *conf;
65 int stereo, depth, aux, buffers, stencil, accum, color, msample;
66
67 if(getGlCapabilities(&caps)) {
68 ErrorF("error from getGlCapabilities()!\n");
69 return NULL;
70 }
71
72 /*
73 conf->stereo is 0 or 1, but we need at least 1 iteration of the loop,
74 so we treat a true conf->stereo as 2.
75
76 The depth size is 0 or 24. Thus we do 2 iterations for that.
77
78 conf->aux_buffers (when available/non-zero) result in 2 iterations instead of 1.
79
80 conf->buffers indicates whether we have single or double buffering.
81
82 conf->total_stencil_bit_depths
83
84 conf->total_color_buffers indicates the RGB/RGBA color depths.
85
86 conf->total_accum_buffers iterations for accum (with at least 1 if equal to 0)
87
88 conf->total_depth_buffer_depths
89
90 conf->multisample_buffers iterations (with at least 1 if equal to 0). We add 1
91 for the 0 multisampling config.
92
93 */
94
95 assert(NULL != caps.configurations);
96
97 numConfigs = 0;
98
99 for(conf = caps.configurations; conf; conf = conf->next) {
100 if(conf->total_color_buffers <= 0)
101 continue;
102
103 numConfigs += (conf->stereo ? 2 : 1)
104 * (conf->aux_buffers ? 2 : 1)
105 * conf->buffers
106 * ((conf->total_stencil_bit_depths > 0) ? conf->total_stencil_bit_depths : 1)
107 * conf->total_color_buffers
108 * ((conf->total_accum_buffers > 0) ? conf->total_accum_buffers : 1)
109 * conf->total_depth_buffer_depths
110 * (conf->multisample_buffers + 1);
111 }
112
113 if(numConfigsPtr)
114 *numConfigsPtr = numConfigs;
115
116 /* Note that as of 1.20.0, we cannot allocate all the configs at once.
117 * __glXScreenDestroy now walks all the fbconfigs and frees them one at a time.
118 * See 4b0a3cbab131eb453e2b3fc0337121969258a7be.
119 */
120 visualConfigs = calloc(sizeof(*visualConfigs), 1);
121
122 l = NULL;
123 c = visualConfigs; /* current buffer */
124 for(conf = caps.configurations; conf; conf = conf->next) {
125 for(stereo = 0; stereo < (conf->stereo ? 2 : 1); ++stereo) {
126 for(aux = 0; aux < (conf->aux_buffers ? 2 : 1); ++aux) {
127 for(buffers = 0; buffers < conf->buffers; ++buffers) {
128 for(stencil = 0; stencil < ((conf->total_stencil_bit_depths > 0) ?
129 conf->total_stencil_bit_depths : 1); ++stencil) {
130 for(color = 0; color < conf->total_color_buffers; ++color) {
131 for(accum = 0; accum < ((conf->total_accum_buffers > 0) ?
132 conf->total_accum_buffers : 1); ++accum) {
133 for(depth = 0; depth < conf->total_depth_buffer_depths; ++depth) {
134 for(msample = 0; msample < (conf->multisample_buffers + 1); ++msample) {
135
136 // Global
137 c->visualID = -1;
138 c->visualType = GLX_TRUE_COLOR;
139 c->next = calloc(sizeof(*visualConfigs), 1);
140 assert(c->next);
141
142 c->level = 0;
143 c->indexBits = 0;
144
145 if(conf->accelerated) {
146 c->visualRating = GLX_NONE;
147 } else {
148 c->visualRating = GLX_SLOW_VISUAL_EXT;
149 }
150
151 c->transparentPixel = GLX_NONE;
152 c->transparentRed = GLX_NONE;
153 c->transparentGreen = GLX_NONE;
154 c->transparentBlue = GLX_NONE;
155 c->transparentAlpha = GLX_NONE;
156 c->transparentIndex = GLX_NONE;
157
158 c->visualSelectGroup = 0;
159
160 c->swapMethod = GLX_SWAP_UNDEFINED_OML;
161
162 // Stereo
163 c->stereoMode = stereo ? TRUE : FALSE;
164
165 // Aux buffers
166 c->numAuxBuffers = aux ? conf->aux_buffers : 0;
167
168 // Double Buffered
169 c->doubleBufferMode = buffers ? TRUE : FALSE;
170
171 // Stencil Buffer
172 if(conf->total_stencil_bit_depths > 0) {
173 c->stencilBits = conf->stencil_bit_depths[stencil];
174 } else {
175 c->stencilBits = 0;
176 }
177
178 // Color
179 if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->color_buffers[color].a) {
180 c->alphaBits = conf->color_buffers[color].a;
181 } else {
182 c->alphaBits = 0;
183 }
184 c->redBits = conf->color_buffers[color].r;
185 c->greenBits = conf->color_buffers[color].g;
186 c->blueBits = conf->color_buffers[color].b;
187
188 c->rgbBits = c->alphaBits + c->redBits + c->greenBits + c->blueBits;
189
190 c->alphaMask = AM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits);
191 c->redMask = RM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits);
192 c->greenMask = GM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits);
193 c->blueMask = BM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits);
194
195 // Accumulation Buffers
196 if(conf->total_accum_buffers > 0) {
197 c->accumRedBits = conf->accum_buffers[accum].r;
198 c->accumGreenBits = conf->accum_buffers[accum].g;
199 c->accumBlueBits = conf->accum_buffers[accum].b;
200 if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->accum_buffers[accum].a) {
201 c->accumAlphaBits = conf->accum_buffers[accum].a;
202 } else {
203 c->accumAlphaBits = 0;
204 }
205 } else {
206 c->accumRedBits = 0;
207 c->accumGreenBits = 0;
208 c->accumBlueBits = 0;
209 c->accumAlphaBits = 0;
210 }
211
212 // Depth
213 c->depthBits = conf->depth_buffers[depth];
214
215 // MultiSample
216 if(msample > 0) {
217 c->samples = conf->multisample_samples;
218 c->sampleBuffers = conf->multisample_buffers;
219 } else {
220 c->samples = 0;
221 c->sampleBuffers = 0;
222 }
223
224 /*
225 * The Apple libGL supports GLXPixmaps and
226 * GLXPbuffers in direct mode.
227 */
228 /* SGIX_fbconfig / GLX 1.3 */
229 c->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT;
230 c->renderType = GLX_RGBA_BIT;
231 c->fbconfigID = -1;
232
233 /* SGIX_pbuffer / GLX 1.3 */
234
235 /*
236 * The CGL layer provides a way of retrieving
237 * the maximum pbuffer width/height, but only
238 * if we create a context and call glGetIntegerv.
239 *
240 * The following values are from a test program
241 * that does so.
242 */
243 c->maxPbufferWidth = 8192;
244 c->maxPbufferHeight = 8192;
245 c->maxPbufferPixels = /*Do we need this?*/ 0;
246 /*
247 * There is no introspection for this sort of thing
248 * with CGL. What should we do realistically?
249 */
250 c->optimalPbufferWidth = 0;
251 c->optimalPbufferHeight = 0;
252
253 /* EXT_texture_from_pixmap */
254 c->bindToTextureRgb = 0;
255 c->bindToTextureRgba = 0;
256 c->bindToMipmapTexture = 0;
257 c->bindToTextureTargets = 0;
258 c->yInverted = 0;
259
260 /* EXT_framebuffer_sRGB */
261 c->sRGBCapable = GL_FALSE;
262
263 l = c;
264 c = c->next;
265 }
266 }
267 }
268 }
269 }
270 }
271 }
272 }
273 }
274
275 free(c);
276 l->next = NULL;
277
278 freeGlCapabilities(&caps);
279 return visualConfigs;
280 }
281