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-rw-r--r--xorg-server/hw/xquartz/GL/capabilities.c559
1 files changed, 559 insertions, 0 deletions
diff --git a/xorg-server/hw/xquartz/GL/capabilities.c b/xorg-server/hw/xquartz/GL/capabilities.c
new file mode 100644
index 000000000..bc3966f4b
--- /dev/null
+++ b/xorg-server/hw/xquartz/GL/capabilities.c
@@ -0,0 +1,559 @@
+/*
+ * Copyright (c) 2008 Apple Inc.
+ *
+ * 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, sublicense,
+ * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE ABOVE LISTED COPYRIGHT HOLDER(S) 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 <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <OpenGL/OpenGL.h>
+#include <OpenGL/gl.h>
+#include <OpenGL/glu.h>
+#include <OpenGL/glext.h>
+#include <ApplicationServices/ApplicationServices.h>
+
+#include "capabilities.h"
+
+static void handleBufferModes(struct glCapabilitiesConfig *c, GLint bufferModes) {
+ if(bufferModes & kCGLStereoscopicBit) {
+ c->stereo = true;
+ }
+
+ if(bufferModes & kCGLDoubleBufferBit) {
+ c->buffers = 2;
+ } else {
+ c->buffers = 1;
+ }
+}
+
+static void handleStencilModes(struct glCapabilitiesConfig *c, GLint smodes) {
+ int offset = 0;
+
+ if(kCGL0Bit & smodes)
+ c->stencil_bit_depths[offset++] = 0;
+
+ if(kCGL1Bit & smodes)
+ c->stencil_bit_depths[offset++] = 1;
+
+ if(kCGL2Bit & smodes)
+ c->stencil_bit_depths[offset++] = 2;
+
+ if(kCGL3Bit & smodes)
+ c->stencil_bit_depths[offset++] = 3;
+
+ if(kCGL4Bit & smodes)
+ c->stencil_bit_depths[offset++] = 4;
+
+ if(kCGL5Bit & smodes)
+ c->stencil_bit_depths[offset++] = 5;
+
+ if(kCGL6Bit & smodes)
+ c->stencil_bit_depths[offset++] = 6;
+
+ if(kCGL8Bit & smodes)
+ c->stencil_bit_depths[offset++] = 8;
+
+ if(kCGL10Bit & smodes)
+ c->stencil_bit_depths[offset++] = 10;
+
+ if(kCGL12Bit & smodes)
+ c->stencil_bit_depths[offset++] = 12;
+
+ if(kCGL16Bit & smodes)
+ c->stencil_bit_depths[offset++] = 16;
+
+ if(kCGL24Bit & smodes)
+ c->stencil_bit_depths[offset++] = 24;
+
+ if(kCGL32Bit & smodes)
+ c->stencil_bit_depths[offset++] = 32;
+
+ if(kCGL48Bit & smodes)
+ c->stencil_bit_depths[offset++] = 48;
+
+ if(kCGL64Bit & smodes)
+ c->stencil_bit_depths[offset++] = 64;
+
+ if(kCGL96Bit & smodes)
+ c->stencil_bit_depths[offset++] = 96;
+
+ if(kCGL128Bit & smodes)
+ c->stencil_bit_depths[offset++] = 128;
+
+ assert(offset < GLCAPS_STENCIL_BIT_DEPTH_BUFFERS);
+
+ c->total_stencil_bit_depths = offset;
+}
+
+static int handleColorAndAccumulation(struct glColorBufCapabilities *c,
+ GLint cmodes) {
+ int offset = 0;
+
+ /*1*/
+ if(kCGLRGB444Bit & cmodes) {
+ c[offset].r = 4;
+ c[offset].g = 4;
+ c[offset].b = 4;
+ ++offset;
+ }
+
+ /*2*/
+ if(kCGLARGB4444Bit & cmodes) {
+ c[offset].a = 4;
+ c[offset].r = 4;
+ c[offset].g = 4;
+ c[offset].b = 4;
+ c[offset].is_argb = true;
+ ++offset;
+ }
+
+ /*3*/
+ if(kCGLRGB444A8Bit & cmodes) {
+ c[offset].r = 4;
+ c[offset].g = 4;
+ c[offset].b = 4;
+ c[offset].a = 8;
+ ++offset;
+ }
+
+ /*4*/
+ if(kCGLRGB555Bit & cmodes) {
+ c[offset].r = 5;
+ c[offset].g = 5;
+ c[offset].b = 5;
+ ++offset;
+ }
+
+ /*5*/
+ if(kCGLARGB1555Bit & cmodes) {
+ c[offset].a = 1;
+ c[offset].r = 5;
+ c[offset].g = 5;
+ c[offset].b = 5;
+ c[offset].is_argb = true;
+ ++offset;
+ }
+
+ /*6*/
+ if(kCGLRGB555A8Bit & cmodes) {
+ c[offset].r = 5;
+ c[offset].g = 5;
+ c[offset].b = 5;
+ c[offset].a = 8;
+ ++offset;
+ }
+
+ /*7*/
+ if(kCGLRGB565Bit & cmodes) {
+ c[offset].r = 5;
+ c[offset].g = 6;
+ c[offset].b = 5;
+ ++offset;
+ }
+
+ /*8*/
+ if(kCGLRGB565A8Bit & cmodes) {
+ c[offset].r = 5;
+ c[offset].g = 6;
+ c[offset].b = 5;
+ c[offset].a = 8;
+ ++offset;
+ }
+
+ /*9*/
+ if(kCGLRGB888Bit & cmodes) {
+ c[offset].r = 8;
+ c[offset].g = 8;
+ c[offset].b = 8;
+ ++offset;
+ }
+
+ /*10*/
+ if(kCGLARGB8888Bit & cmodes) {
+ c[offset].a = 8;
+ c[offset].r = 8;
+ c[offset].g = 8;
+ c[offset].b = 8;
+ c[offset].is_argb = true;
+ ++offset;
+ }
+
+ /*11*/
+ if(kCGLRGB888A8Bit & cmodes) {
+ c[offset].r = 8;
+ c[offset].g = 8;
+ c[offset].b = 8;
+ c[offset].a = 8;
+ ++offset;
+ }
+
+#if 0
+ /*
+ * Disable this path, because some part of libGL, X, or Xplugin
+ * doesn't work with sizes greater than 8.
+ * When this is enabled and visuals are chosen using depths
+ * such as 16, the result is that the windows don't redraw
+ * and are often white, until a resize.
+ */
+
+ /*12*/
+ if(kCGLRGB101010Bit & cmodes) {
+ c[offset].r = 10;
+ c[offset].g = 10;
+ c[offset].b = 10;
+ ++offset;
+ }
+
+ /*13*/
+ if(kCGLARGB2101010Bit & cmodes) {
+ c[offset].a = 2;
+ c[offset].r = 10;
+ c[offset].g = 10;
+ c[offset].b = 10;
+ c[offset].is_argb = true;
+ ++offset;
+ }
+
+ /*14*/
+ if(kCGLRGB101010_A8Bit & cmodes) {
+ c[offset].r = 10;
+ c[offset].g = 10;
+ c[offset].b = 10;
+ c[offset].a = 8;
+ ++offset;
+ }
+
+ /*15*/
+ if(kCGLRGB121212Bit & cmodes) {
+ c[offset].r = 12;
+ c[offset].g = 12;
+ c[offset].b = 12;
+ ++offset;
+ }
+
+ /*16*/
+ if(kCGLARGB12121212Bit & cmodes) {
+ c[offset].a = 12;
+ c[offset].r = 12;
+ c[offset].g = 12;
+ c[offset].b = 12;
+ c[offset].is_argb = true;
+ ++offset;
+ }
+
+ /*17*/
+ if(kCGLRGB161616Bit & cmodes) {
+ c[offset].r = 16;
+ c[offset].g = 16;
+ c[offset].b = 16;
+ ++offset;
+ }
+
+ /*18*/
+ if(kCGLRGBA16161616Bit & cmodes) {
+ c[offset].r = 16;
+ c[offset].g = 16;
+ c[offset].b = 16;
+ c[offset].a = 16;
+ ++offset;
+ }
+#endif
+
+ /* FIXME should we handle the floating point color modes, and if so, how? */
+
+ return offset;
+}
+
+
+static void handleColorModes(struct glCapabilitiesConfig *c, GLint cmodes) {
+ c->total_color_buffers = handleColorAndAccumulation(c->color_buffers,
+ cmodes);
+
+ assert(c->total_color_buffers < GLCAPS_COLOR_BUFFERS);
+}
+
+static void handleAccumulationModes(struct glCapabilitiesConfig *c, GLint cmodes) {
+ c->total_accum_buffers = handleColorAndAccumulation(c->accum_buffers,
+ cmodes);
+ assert(c->total_accum_buffers < GLCAPS_COLOR_BUFFERS);
+}
+
+static void handleDepthModes(struct glCapabilitiesConfig *c, GLint dmodes) {
+ int offset = 0;
+#define DEPTH(flag,value) do { \
+ if(dmodes & flag) { \
+ c->depth_buffers[offset++] = value; \
+ } \
+ } while(0)
+
+ /*1*/
+ DEPTH(kCGL0Bit, 0);
+ /*2*/
+ DEPTH(kCGL1Bit, 1);
+ /*3*/
+ DEPTH(kCGL2Bit, 2);
+ /*4*/
+ DEPTH(kCGL3Bit, 3);
+ /*5*/
+ DEPTH(kCGL4Bit, 4);
+ /*6*/
+ DEPTH(kCGL5Bit, 5);
+ /*7*/
+ DEPTH(kCGL6Bit, 6);
+ /*8*/
+ DEPTH(kCGL8Bit, 8);
+ /*9*/
+ DEPTH(kCGL10Bit, 10);
+ /*10*/
+ DEPTH(kCGL12Bit, 12);
+ /*11*/
+ DEPTH(kCGL16Bit, 16);
+ /*12*/
+ DEPTH(kCGL24Bit, 24);
+ /*13*/
+ DEPTH(kCGL32Bit, 32);
+ /*14*/
+ DEPTH(kCGL48Bit, 48);
+ /*15*/
+ DEPTH(kCGL64Bit, 64);
+ /*16*/
+ DEPTH(kCGL96Bit, 96);
+ /*17*/
+ DEPTH(kCGL128Bit, 128);
+
+#undef DEPTH
+
+ c->total_depth_buffer_depths = offset;
+ assert(c->total_depth_buffer_depths < GLCAPS_DEPTH_BUFFERS);
+}
+
+/* Return non-zero if an error occured. */
+static CGLError handleRendererDescriptions(CGLRendererInfoObj info, GLint r,
+ struct glCapabilitiesConfig *c) {
+ CGLError err;
+ GLint accelerated = 0, flags = 0, aux = 0, samplebufs = 0, samples = 0;
+
+ err = CGLDescribeRenderer (info, r, kCGLRPAccelerated, &accelerated);
+
+ if(err)
+ return err;
+
+ c->accelerated = accelerated;
+
+ /* Buffering modes: single/double, stereo */
+ err = CGLDescribeRenderer(info, r, kCGLRPBufferModes, &flags);
+
+ if(err)
+ return err;
+
+ handleBufferModes(c, flags);
+
+ /* AUX buffers */
+ err = CGLDescribeRenderer(info, r, kCGLRPMaxAuxBuffers, &aux);
+
+ if(err)
+ return err;
+
+ c->aux_buffers = aux;
+
+
+ /* Depth buffer size */
+ err = CGLDescribeRenderer(info, r, kCGLRPDepthModes, &flags);
+
+ if(err)
+ return err;
+
+ handleDepthModes(c, flags);
+
+
+ /* Multisample buffers */
+ err = CGLDescribeRenderer(info, r, kCGLRPMaxSampleBuffers, &samplebufs);
+
+ if(err)
+ return err;
+
+ c->multisample_buffers = samplebufs;
+
+
+ /* Multisample samples per multisample buffer */
+ err = CGLDescribeRenderer(info, r, kCGLRPMaxSamples, &samples);
+
+ if(err)
+ return err;
+
+ c->multisample_samples = samples;
+
+
+ /* Stencil bit depths */
+ err = CGLDescribeRenderer(info, r, kCGLRPStencilModes, &flags);
+
+ if(err)
+ return err;
+
+ handleStencilModes(c, flags);
+
+
+ /* Color modes (RGB/RGBA depths supported */
+ err = CGLDescribeRenderer(info, r, kCGLRPColorModes, &flags);
+
+ if(err)
+ return err;
+
+ handleColorModes(c, flags);
+
+ err = CGLDescribeRenderer(info, r, kCGLRPAccumModes, &flags);
+
+ if(err)
+ return err;
+
+ handleAccumulationModes(c, flags);
+
+ return 0;
+}
+
+static void initCapabilities(struct glCapabilities *cap) {
+ cap->configurations = NULL;
+ cap->total_configurations = 0;
+}
+
+static void initConfig(struct glCapabilitiesConfig *c) {
+ int i;
+
+ c->accelerated = false;
+ c->stereo = false;
+ c->aux_buffers = 0;
+ c->buffers = 0;
+
+ c->total_depth_buffer_depths = 0;
+
+ for(i = 0; i < GLCAPS_DEPTH_BUFFERS; ++i) {
+ c->depth_buffers[i] = GLCAPS_INVALID_DEPTH_VALUE;
+ }
+
+ c->multisample_buffers = 0;
+ c->multisample_samples = 0;
+
+ c->total_stencil_bit_depths = 0;
+
+ for(i = 0; i < GLCAPS_STENCIL_BIT_DEPTH_BUFFERS; ++i) {
+ c->stencil_bit_depths[i] = GLCAPS_INVALID_STENCIL_DEPTH;
+ }
+
+ c->total_color_buffers = 0;
+
+ for(i = 0; i < GLCAPS_COLOR_BUFFERS; ++i) {
+ c->color_buffers[i].r = c->color_buffers[i].g =
+ c->color_buffers[i].b = c->color_buffers[i].a =
+ GLCAPS_COLOR_BUF_INVALID_VALUE;
+ c->color_buffers[i].is_argb = false;
+ }
+
+ c->total_accum_buffers = 0;
+
+ for(i = 0; i < GLCAPS_COLOR_BUFFERS; ++i) {
+ c->accum_buffers[i].r = c->accum_buffers[i].g =
+ c->accum_buffers[i].b = c->accum_buffers[i].a =
+ GLCAPS_COLOR_BUF_INVALID_VALUE;
+ c->accum_buffers[i].is_argb = false;
+ }
+
+ c->next = NULL;
+}
+
+void freeGlCapabilities(struct glCapabilities *cap) {
+ struct glCapabilitiesConfig *conf, *next;
+
+ conf = cap->configurations;
+
+ while(conf) {
+ next = conf->next;
+ free(conf);
+ conf = next;
+ }
+
+ cap->configurations = NULL;
+}
+
+enum { MAX_DISPLAYS = 3 };
+
+/*Return true if an error occured. */
+bool getGlCapabilities(struct glCapabilities *cap) {
+ CGDirectDisplayID dspys[MAX_DISPLAYS];
+ CGDisplayErr err;
+ CGOpenGLDisplayMask displayMask;
+ CGDisplayCount i, displayCount = 0;
+
+ initCapabilities(cap);
+
+ err = CGGetActiveDisplayList(MAX_DISPLAYS, dspys, &displayCount);
+ if(err) {
+ fprintf(stderr, "CGGetActiveDisplayList error: %s\n", CGLErrorString(err));
+ return true;
+ }
+
+ for(i = 0; i < displayCount; ++i) {
+ displayMask = CGDisplayIDToOpenGLDisplayMask(dspys[i]);
+
+ CGLRendererInfoObj info;
+ GLint numRenderers = 0, r, renderCount = 0;
+
+ err = CGLQueryRendererInfo(displayMask, &info, &numRenderers);
+
+ if(err) {
+ fprintf(stderr, "CGLQueryRendererInfo error: %s\n", CGLErrorString(err));
+ fprintf(stderr, "trying to continue...\n");
+ continue;
+ }
+
+ CGLDescribeRenderer(info, 0, kCGLRPRendererCount, &renderCount);
+
+ for(r = 0; r < renderCount; ++r) {
+ CGLError derr;
+ struct glCapabilitiesConfig tmpconf, *conf;
+
+ initConfig(&tmpconf);
+
+ derr = handleRendererDescriptions(info, r, &tmpconf);
+ if(derr) {
+ fprintf(stderr, "error: %s\n", CGLErrorString(derr));
+ fprintf(stderr, "trying to continue...\n");
+ continue;
+ }
+
+ conf = malloc(sizeof(*conf));
+ if(NULL == conf) {
+ perror("malloc");
+ abort();
+ }
+
+ /* Copy the struct. */
+ *conf = tmpconf;
+
+ /* Now link the configuration into the list. */
+ conf->next = cap->configurations;
+ cap->configurations = conf;
+ }
+
+ CGLDestroyRendererInfo(info);
+ }
+
+ /* No error occured. We are done. */
+ return false;
+}
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