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authordavidovski <david@davidovski.xyz>2022-05-04 23:52:30 +0100
committerdavidovski <david@davidovski.xyz>2022-05-04 23:52:30 +0100
commit739c65c54cb0e957df5e9b76f93fb02554e5cac3 (patch)
tree09ddfa0a342f3ea9de136cb50abdd79821bf1b53 /repo/x11/mesa/mesa-21.3.7-add_xdemos-1.patch
parent4c585ad54388285500fd18a6aaa516894e0f2c16 (diff)
moved everything to new file formatting
Diffstat (limited to 'repo/x11/mesa/mesa-21.3.7-add_xdemos-1.patch')
-rw-r--r--repo/x11/mesa/mesa-21.3.7-add_xdemos-1.patch3197
1 files changed, 3197 insertions, 0 deletions
diff --git a/repo/x11/mesa/mesa-21.3.7-add_xdemos-1.patch b/repo/x11/mesa/mesa-21.3.7-add_xdemos-1.patch
new file mode 100644
index 0000000..6b41e57
--- /dev/null
+++ b/repo/x11/mesa/mesa-21.3.7-add_xdemos-1.patch
@@ -0,0 +1,3197 @@
+Submitted By: DJ Lucas <dj@linuxfromscratch.org>
+ based on previous patches submitted
+ by Armin K and Fernando de Oliveira
+Date: 2020-10-16
+Initial Package Version: 19.0.4
+Upstream Status: Not applicable.
+Origin: Self.
+Description: This patch adds two OpenGL demos, glxinfo and
+ glxgears and respective man pages.
+
+diff -Naurp mesa-20.2.1-orig/src/glx/meson.build mesa-20.2.1/src/glx/meson.build
+--- mesa-20.2.1-orig/src/glx/meson.build 2020-10-14 12:19:10.623185200 -0500
++++ mesa-20.2.1/src/glx/meson.build 2020-10-15 23:06:45.823362439 -0500
+@@ -165,6 +165,8 @@ libgl = shared_library(
+ install : true,
+ )
+
++subdir('xdemos')
++
+ if with_tests
+ subdir('tests')
+ endif
+diff -Naurp mesa-20.2.1-orig/src/glx/xdemos/glinfo_common.c mesa-20.2.1/src/glx/xdemos/glinfo_common.c
+--- mesa-20.2.1-orig/src/glx/xdemos/glinfo_common.c 1969-12-31 18:00:00.000000000 -0600
++++ mesa-20.2.1/src/glx/xdemos/glinfo_common.c 2020-10-15 23:06:45.826695773 -0500
+@@ -0,0 +1,800 @@
++/*
++ * Copyright (C) 1999-2014 Brian Paul 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, 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
++ * BRIAN PAUL 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 <assert.h>
++#include <ctype.h>
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#include "glinfo_common.h"
++
++#ifdef _WIN32
++#define snprintf _snprintf
++#endif
++
++
++/**
++ * Return the GL enum name for a numeric value.
++ * We really only care about the compressed texture formats for now.
++ */
++static const char *
++enum_name(GLenum val)
++{
++ static const struct {
++ const char *name;
++ GLenum val;
++ } enums [] = {
++ { "GL_COMPRESSED_ALPHA", 0x84E9 },
++ { "GL_COMPRESSED_LUMINANCE", 0x84EA },
++ { "GL_COMPRESSED_LUMINANCE_ALPHA", 0x84EB },
++ { "GL_COMPRESSED_INTENSITY", 0x84EC },
++ { "GL_COMPRESSED_RGB", 0x84ED },
++ { "GL_COMPRESSED_RGBA", 0x84EE },
++ { "GL_COMPRESSED_TEXTURE_FORMATS", 0x86A3 },
++ { "GL_COMPRESSED_RGB", 0x84ED },
++ { "GL_COMPRESSED_RGBA", 0x84EE },
++ { "GL_COMPRESSED_TEXTURE_FORMATS", 0x86A3 },
++ { "GL_COMPRESSED_ALPHA", 0x84E9 },
++ { "GL_COMPRESSED_LUMINANCE", 0x84EA },
++ { "GL_COMPRESSED_LUMINANCE_ALPHA", 0x84EB },
++ { "GL_COMPRESSED_INTENSITY", 0x84EC },
++ { "GL_COMPRESSED_SRGB", 0x8C48 },
++ { "GL_COMPRESSED_SRGB_ALPHA", 0x8C49 },
++ { "GL_COMPRESSED_SLUMINANCE", 0x8C4A },
++ { "GL_COMPRESSED_SLUMINANCE_ALPHA", 0x8C4B },
++ { "GL_COMPRESSED_RED", 0x8225 },
++ { "GL_COMPRESSED_RG", 0x8226 },
++ { "GL_COMPRESSED_RED_RGTC1", 0x8DBB },
++ { "GL_COMPRESSED_SIGNED_RED_RGTC1", 0x8DBC },
++ { "GL_COMPRESSED_RG_RGTC2", 0x8DBD },
++ { "GL_COMPRESSED_SIGNED_RG_RGTC2", 0x8DBE },
++ { "GL_COMPRESSED_RGB8_ETC2", 0x9274 },
++ { "GL_COMPRESSED_SRGB8_ETC2", 0x9275 },
++ { "GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2", 0x9276 },
++ { "GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2", 0x9277 },
++ { "GL_COMPRESSED_RGBA8_ETC2_EAC", 0x9278 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC", 0x9279 },
++ { "GL_COMPRESSED_R11_EAC", 0x9270 },
++ { "GL_COMPRESSED_SIGNED_R11_EAC", 0x9271 },
++ { "GL_COMPRESSED_RG11_EAC", 0x9272 },
++ { "GL_COMPRESSED_SIGNED_RG11_EAC", 0x9273 },
++ { "GL_COMPRESSED_ALPHA_ARB", 0x84E9 },
++ { "GL_COMPRESSED_LUMINANCE_ARB", 0x84EA },
++ { "GL_COMPRESSED_LUMINANCE_ALPHA_ARB", 0x84EB },
++ { "GL_COMPRESSED_INTENSITY_ARB", 0x84EC },
++ { "GL_COMPRESSED_RGB_ARB", 0x84ED },
++ { "GL_COMPRESSED_RGBA_ARB", 0x84EE },
++ { "GL_COMPRESSED_TEXTURE_FORMATS_ARB", 0x86A3 },
++ { "GL_COMPRESSED_RGBA_BPTC_UNORM_ARB", 0x8E8C },
++ { "GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB", 0x8E8D },
++ { "GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB", 0x8E8E },
++ { "GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB", 0x8E8F },
++ { "GL_COMPRESSED_RGBA_ASTC_4x4_KHR", 0x93B0 },
++ { "GL_COMPRESSED_RGBA_ASTC_5x4_KHR", 0x93B1 },
++ { "GL_COMPRESSED_RGBA_ASTC_5x5_KHR", 0x93B2 },
++ { "GL_COMPRESSED_RGBA_ASTC_6x5_KHR", 0x93B3 },
++ { "GL_COMPRESSED_RGBA_ASTC_6x6_KHR", 0x93B4 },
++ { "GL_COMPRESSED_RGBA_ASTC_8x5_KHR", 0x93B5 },
++ { "GL_COMPRESSED_RGBA_ASTC_8x6_KHR", 0x93B6 },
++ { "GL_COMPRESSED_RGBA_ASTC_8x8_KHR", 0x93B7 },
++ { "GL_COMPRESSED_RGBA_ASTC_10x5_KHR", 0x93B8 },
++ { "GL_COMPRESSED_RGBA_ASTC_10x6_KHR", 0x93B9 },
++ { "GL_COMPRESSED_RGBA_ASTC_10x8_KHR", 0x93BA },
++ { "GL_COMPRESSED_RGBA_ASTC_10x10_KHR", 0x93BB },
++ { "GL_COMPRESSED_RGBA_ASTC_12x10_KHR", 0x93BC },
++ { "GL_COMPRESSED_RGBA_ASTC_12x12_KHR", 0x93BD },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR", 0x93D0 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR", 0x93D1 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR", 0x93D2 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR", 0x93D3 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR", 0x93D4 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR", 0x93D5 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR", 0x93D6 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR", 0x93D7 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR", 0x93D8 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR", 0x93D9 },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR", 0x93DA },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR", 0x93DB },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR", 0x93DC },
++ { "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR", 0x93DD },
++ { "GL_COMPRESSED_RGB_FXT1_3DFX", 0x86B0 },
++ { "GL_COMPRESSED_RGBA_FXT1_3DFX", 0x86B1 },
++ { "GL_COMPRESSED_LUMINANCE_LATC1_EXT", 0x8C70 },
++ { "GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT", 0x8C71 },
++ { "GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT", 0x8C72 },
++ { "GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT", 0x8C73 },
++ { "GL_COMPRESSED_RED_RGTC1_EXT", 0x8DBB },
++ { "GL_COMPRESSED_SIGNED_RED_RGTC1_EXT", 0x8DBC },
++ { "GL_COMPRESSED_RED_GREEN_RGTC2_EXT", 0x8DBD },
++ { "GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT", 0x8DBE },
++ { "GL_COMPRESSED_RGB_S3TC_DXT1_EXT", 0x83F0 },
++ { "GL_COMPRESSED_RGBA_S3TC_DXT1_EXT", 0x83F1 },
++ { "GL_COMPRESSED_RGBA_S3TC_DXT3_EXT", 0x83F2 },
++ { "GL_COMPRESSED_RGBA_S3TC_DXT5_EXT", 0x83F3 },
++ { "GL_COMPRESSED_SRGB_EXT", 0x8C48 },
++ { "GL_COMPRESSED_SRGB_ALPHA_EXT", 0x8C49 },
++ { "GL_COMPRESSED_SLUMINANCE_EXT", 0x8C4A },
++ { "GL_COMPRESSED_SLUMINANCE_ALPHA_EXT", 0x8C4B },
++ { "GL_COMPRESSED_SRGB_S3TC_DXT1_EXT", 0x8C4C },
++ { "GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT", 0x8C4D },
++ { "GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT", 0x8C4E },
++ { "GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT", 0x8C4F },
++ { "GL_PALETTE4_RGB8_OES", 0x8B90 },
++ { "GL_PALETTE4_RGBA8_OES", 0x8B91 },
++ { "GL_PALETTE4_R5_G6_B5_OES", 0x8B92 },
++ { "GL_PALETTE4_RGBA4_OES", 0x8B93 },
++ { "GL_PALETTE4_RGB5_A1_OES", 0x8B94 },
++ { "GL_PALETTE8_RGB8_OES", 0x8B95 },
++ { "GL_PALETTE8_RGBA8_OES", 0x8B96 },
++ { "GL_PALETTE8_R5_G6_B5_OES", 0x8B97 },
++ { "GL_PALETTE8_RGBA4_OES", 0x8B98 },
++ { "GL_PALETTE8_RGB5_A1_OES", 0x8B99 }
++ };
++ const int n = sizeof(enums) / sizeof(enums[0]);
++ static char buffer[100];
++ int i;
++ for (i = 0; i < n; i++) {
++ if (enums[i].val == val) {
++ return enums[i].name;
++ }
++ }
++ /* enum val not found, just print hexadecimal value into static buffer */
++ snprintf(buffer, sizeof(buffer), "0x%x", val);
++ return buffer;
++}
++
++
++/*
++ * qsort callback for string comparison.
++ */
++static int
++compare_string_ptr(const void *p1, const void *p2)
++{
++ return strcmp(* (char * const *) p1, * (char * const *) p2);
++}
++
++/*
++ * Print a list of extensions, with word-wrapping.
++ */
++void
++print_extension_list(const char *ext, GLboolean singleLine)
++{
++ char **extensions;
++ int num_extensions;
++ const char *indentString = " ";
++ const int indent = 4;
++ const int max = 79;
++ int width, i, j, k;
++
++ if (!ext || !ext[0])
++ return;
++
++ /* count the number of extensions, ignoring successive spaces */
++ num_extensions = 0;
++ j = 1;
++ do {
++ if ((ext[j] == ' ' || ext[j] == 0) && ext[j - 1] != ' ') {
++ ++num_extensions;
++ }
++ } while(ext[j++]);
++
++ /* copy individual extensions to an array */
++ extensions = malloc(num_extensions * sizeof *extensions);
++ if (!extensions) {
++ fprintf(stderr, "Error: malloc() failed\n");
++ exit(1);
++ }
++ i = j = k = 0;
++ while (1) {
++ if (ext[j] == ' ' || ext[j] == 0) {
++ /* found end of an extension name */
++ const int len = j - i;
++
++ if (len) {
++ assert(k < num_extensions);
++
++ extensions[k] = malloc(len + 1);
++ if (!extensions[k]) {
++ fprintf(stderr, "Error: malloc() failed\n");
++ exit(1);
++ }
++
++ memcpy(extensions[k], ext + i, len);
++ extensions[k][len] = 0;
++
++ ++k;
++ };
++
++ i += len + 1;
++
++ if (ext[j] == 0) {
++ break;
++ }
++ }
++ j++;
++ }
++ assert(k == num_extensions);
++
++ /* sort extensions alphabetically */
++ qsort(extensions, num_extensions, sizeof extensions[0], compare_string_ptr);
++
++ /* print the extensions */
++ width = indent;
++ printf("%s", indentString);
++ for (k = 0; k < num_extensions; ++k) {
++ const int len = strlen(extensions[k]);
++ if ((!singleLine) && (width + len > max)) {
++ /* start a new line */
++ printf("\n");
++ width = indent;
++ printf("%s", indentString);
++ }
++ /* print the extension name */
++ printf("%s", extensions[k]);
++
++ /* either we're all done, or we'll continue with next extension */
++ width += len + 1;
++
++ if (singleLine) {
++ printf("\n");
++ width = indent;
++ printf("%s", indentString);
++ }
++ else if (k < (num_extensions -1)) {
++ printf(", ");
++ width += 2;
++ }
++ }
++ printf("\n");
++
++ for (k = 0; k < num_extensions; ++k) {
++ free(extensions[k]);
++ }
++ free(extensions);
++}
++
++
++
++
++/**
++ * Get list of OpenGL extensions using core profile's glGetStringi().
++ */
++char *
++build_core_profile_extension_list(const struct ext_functions *extfuncs)
++{
++ GLint i, n, totalLen;
++ char *buffer;
++
++ glGetIntegerv(GL_NUM_EXTENSIONS, &n);
++
++ /* compute totalLen */
++ totalLen = 0;
++ for (i = 0; i < n; i++) {
++ const char *ext = (const char *) extfuncs->GetStringi(GL_EXTENSIONS, i);
++ if (ext)
++ totalLen += strlen(ext) + 1; /* plus a space */
++ }
++
++ if (!totalLen)
++ return NULL;
++
++ buffer = malloc(totalLen + 1);
++ if (buffer) {
++ int pos = 0;
++ for (i = 0; i < n; i++) {
++ const char *ext = (const char *) extfuncs->GetStringi(GL_EXTENSIONS, i);
++ strcpy(buffer + pos, ext);
++ pos += strlen(ext);
++ buffer[pos++] = ' ';
++ }
++ buffer[pos] = '\0';
++ }
++ return buffer;
++}
++
++
++/** Is extension 'ext' supported? */
++GLboolean
++extension_supported(const char *ext, const char *extensionsList)
++{
++ while (1) {
++ const char *p = strstr(extensionsList, ext);
++ if (p) {
++ /* check that next char is a space or end of string */
++ int extLen = strlen(ext);
++ if (p[extLen] == 0 || p[extLen] == ' ') {
++ return 1;
++ }
++ else {
++ /* We found a superset string, keep looking */
++ extensionsList += extLen;
++ }
++ }
++ else {
++ break;
++ }
++ }
++ return 0;
++}
++
++
++/**
++ * Is verNum >= verString?
++ * \param verString such as "2.1", "3.0", etc.
++ * \param verNum such as 20, 21, 30, 31, 32, etc.
++ */
++static GLboolean
++version_supported(const char *verString, int verNum)
++{
++ int v;
++
++ if (!verString ||
++ !isdigit(verString[0]) ||
++ verString[1] != '.' ||
++ !isdigit(verString[2])) {
++ return GL_FALSE;
++ }
++
++ v = (verString[0] - '0') * 10 + (verString[2] - '0');
++
++ return verNum >= v;
++}
++
++
++struct token_name
++{
++ GLenum token;
++ const char *name;
++};
++
++
++static void
++print_shader_limit_list(const struct token_name *lim)
++{
++ GLint max[1];
++ unsigned i;
++
++ for (i = 0; lim[i].token; i++) {
++ glGetIntegerv(lim[i].token, max);
++ if (glGetError() == GL_NO_ERROR) {
++ printf(" %s = %d\n", lim[i].name, max[0]);
++ }
++ }
++}
++
++
++/**
++ * Print interesting limits for vertex/fragment shaders.
++ */
++static void
++print_shader_limits(GLenum target)
++{
++ static const struct token_name vertex_limits[] = {
++ { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, "GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB" },
++ { GL_MAX_VARYING_FLOATS_ARB, "GL_MAX_VARYING_FLOATS_ARB" },
++ { GL_MAX_VERTEX_ATTRIBS_ARB, "GL_MAX_VERTEX_ATTRIBS_ARB" },
++ { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_TEXTURE_IMAGE_UNITS_ARB" },
++ { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB" },
++ { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB" },
++ { GL_MAX_TEXTURE_COORDS_ARB, "GL_MAX_TEXTURE_COORDS_ARB" },
++ { GL_MAX_VERTEX_OUTPUT_COMPONENTS , "GL_MAX_VERTEX_OUTPUT_COMPONENTS " },
++ { (GLenum) 0, NULL }
++ };
++ static const struct token_name fragment_limits[] = {
++ { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, "GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB" },
++ { GL_MAX_TEXTURE_COORDS_ARB, "GL_MAX_TEXTURE_COORDS_ARB" },
++ { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_TEXTURE_IMAGE_UNITS_ARB" },
++ { GL_MAX_FRAGMENT_INPUT_COMPONENTS , "GL_MAX_FRAGMENT_INPUT_COMPONENTS " },
++ { (GLenum) 0, NULL }
++ };
++ static const struct token_name geometry_limits[] = {
++ { GL_MAX_GEOMETRY_UNIFORM_COMPONENTS, "GL_MAX_GEOMETRY_UNIFORM_COMPONENTS" },
++ { GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS, "GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS" },
++ { GL_MAX_GEOMETRY_OUTPUT_VERTICES , "GL_MAX_GEOMETRY_OUTPUT_VERTICES " },
++ { GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS, "GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS" },
++ { GL_MAX_GEOMETRY_INPUT_COMPONENTS , "GL_MAX_GEOMETRY_INPUT_COMPONENTS " },
++ { GL_MAX_GEOMETRY_OUTPUT_COMPONENTS, "GL_MAX_GEOMETRY_OUTPUT_COMPONENTS" },
++ { (GLenum) 0, NULL }
++ };
++
++ switch (target) {
++ case GL_VERTEX_SHADER:
++ printf(" GL_VERTEX_SHADER_ARB:\n");
++ print_shader_limit_list(vertex_limits);
++ break;
++
++ case GL_FRAGMENT_SHADER:
++ printf(" GL_FRAGMENT_SHADER_ARB:\n");
++ print_shader_limit_list(fragment_limits);
++ break;
++
++ case GL_GEOMETRY_SHADER:
++ printf(" GL_GEOMETRY_SHADER:\n");
++ print_shader_limit_list(geometry_limits);
++ break;
++ }
++}
++
++
++/**
++ * Print interesting limits for vertex/fragment programs.
++ */
++static void
++print_program_limits(GLenum target,
++ const struct ext_functions *extfuncs)
++{
++#if defined(GL_ARB_vertex_program) || defined(GL_ARB_fragment_program)
++ struct token_name {
++ GLenum token;
++ const char *name;
++ };
++ static const struct token_name common_limits[] = {
++ { GL_MAX_PROGRAM_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_INSTRUCTIONS_ARB" },
++ { GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB" },
++ { GL_MAX_PROGRAM_TEMPORARIES_ARB, "GL_MAX_PROGRAM_TEMPORARIES_ARB" },
++ { GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB, "GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB" },
++ { GL_MAX_PROGRAM_PARAMETERS_ARB, "GL_MAX_PROGRAM_PARAMETERS_ARB" },
++ { GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB, "GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB" },
++ { GL_MAX_PROGRAM_ATTRIBS_ARB, "GL_MAX_PROGRAM_ATTRIBS_ARB" },
++ { GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB, "GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB" },
++ { GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB, "GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB" },
++ { GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB, "GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB" },
++ { GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB, "GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB" },
++ { GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, "GL_MAX_PROGRAM_ENV_PARAMETERS_ARB" },
++ { (GLenum) 0, NULL }
++ };
++ static const struct token_name fragment_limits[] = {
++ { GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB" },
++ { GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB" },
++ { GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB, "GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB" },
++ { GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB" },
++ { GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB" },
++ { GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB" },
++ { (GLenum) 0, NULL }
++ };
++
++ GLint max[1];
++ int i;
++
++ if (target == GL_VERTEX_PROGRAM_ARB) {
++ printf(" GL_VERTEX_PROGRAM_ARB:\n");
++ }
++ else if (target == GL_FRAGMENT_PROGRAM_ARB) {
++ printf(" GL_FRAGMENT_PROGRAM_ARB:\n");
++ }
++ else {
++ return; /* something's wrong */
++ }
++
++ for (i = 0; common_limits[i].token; i++) {
++ extfuncs->GetProgramivARB(target, common_limits[i].token, max);
++ if (glGetError() == GL_NO_ERROR) {
++ printf(" %s = %d\n", common_limits[i].name, max[0]);
++ }
++ }
++ if (target == GL_FRAGMENT_PROGRAM_ARB) {
++ for (i = 0; fragment_limits[i].token; i++) {
++ extfuncs->GetProgramivARB(target, fragment_limits[i].token, max);
++ if (glGetError() == GL_NO_ERROR) {
++ printf(" %s = %d\n", fragment_limits[i].name, max[0]);
++ }
++ }
++ }
++#endif /* GL_ARB_vertex_program / GL_ARB_fragment_program */
++}
++
++
++/**
++ * Print interesting OpenGL implementation limits.
++ * \param version 20, 21, 30, 31, 32, etc.
++ */
++void
++print_limits(const char *extensions, const char *oglstring, int version,
++ const struct ext_functions *extfuncs)
++{
++ struct token_name {
++ GLuint count;
++ GLenum token;
++ const char *name;
++ const char *extension; /* NULL or GL extension name or version string */
++ };
++ static const struct token_name limits[] = {
++ { 1, GL_MAX_ATTRIB_STACK_DEPTH, "GL_MAX_ATTRIB_STACK_DEPTH", NULL },
++ { 1, GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, "GL_MAX_CLIENT_ATTRIB_STACK_DEPTH", NULL },
++ { 1, GL_MAX_CLIP_PLANES, "GL_MAX_CLIP_PLANES", NULL },
++ { 1, GL_MAX_COLOR_MATRIX_STACK_DEPTH, "GL_MAX_COLOR_MATRIX_STACK_DEPTH", "GL_ARB_imaging" },
++ { 1, GL_MAX_ELEMENTS_VERTICES, "GL_MAX_ELEMENTS_VERTICES", NULL },
++ { 1, GL_MAX_ELEMENTS_INDICES, "GL_MAX_ELEMENTS_INDICES", NULL },
++ { 1, GL_MAX_EVAL_ORDER, "GL_MAX_EVAL_ORDER", NULL },
++ { 1, GL_MAX_LIGHTS, "GL_MAX_LIGHTS", NULL },
++ { 1, GL_MAX_LIST_NESTING, "GL_MAX_LIST_NESTING", NULL },
++ { 1, GL_MAX_MODELVIEW_STACK_DEPTH, "GL_MAX_MODELVIEW_STACK_DEPTH", NULL },
++ { 1, GL_MAX_NAME_STACK_DEPTH, "GL_MAX_NAME_STACK_DEPTH", NULL },
++ { 1, GL_MAX_PIXEL_MAP_TABLE, "GL_MAX_PIXEL_MAP_TABLE", NULL },
++ { 1, GL_MAX_PROJECTION_STACK_DEPTH, "GL_MAX_PROJECTION_STACK_DEPTH", NULL },
++ { 1, GL_MAX_TEXTURE_STACK_DEPTH, "GL_MAX_TEXTURE_STACK_DEPTH", NULL },
++ { 1, GL_MAX_TEXTURE_SIZE, "GL_MAX_TEXTURE_SIZE", NULL },
++ { 1, GL_MAX_3D_TEXTURE_SIZE, "GL_MAX_3D_TEXTURE_SIZE", NULL },
++#if defined(GL_EXT_texture_array)
++ { 1, GL_MAX_ARRAY_TEXTURE_LAYERS_EXT, "GL_MAX_ARRAY_TEXTURE_LAYERS", "GL_EXT_texture_array" },
++#endif
++ { 2, GL_MAX_VIEWPORT_DIMS, "GL_MAX_VIEWPORT_DIMS", NULL },
++ { 2, GL_ALIASED_LINE_WIDTH_RANGE, "GL_ALIASED_LINE_WIDTH_RANGE", NULL },
++ { 2, GL_SMOOTH_LINE_WIDTH_RANGE, "GL_SMOOTH_LINE_WIDTH_RANGE", NULL },
++ { 2, GL_ALIASED_POINT_SIZE_RANGE, "GL_ALIASED_POINT_SIZE_RANGE", NULL },
++ { 2, GL_SMOOTH_POINT_SIZE_RANGE, "GL_SMOOTH_POINT_SIZE_RANGE", NULL },
++#if defined(GL_ARB_texture_cube_map)
++ { 1, GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, "GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB", "GL_ARB_texture_cube_map" },
++#endif
++#if defined(GL_NV_texture_rectangle)
++ { 1, GL_MAX_RECTANGLE_TEXTURE_SIZE_NV, "GL_MAX_RECTANGLE_TEXTURE_SIZE_NV", "GL_NV_texture_rectangle" },
++#endif
++#if defined(GL_ARB_multitexture)
++ { 1, GL_MAX_TEXTURE_UNITS_ARB, "GL_MAX_TEXTURE_UNITS_ARB", "GL_ARB_multitexture" },
++#endif
++#if defined(GL_EXT_texture_lod_bias)
++ { 1, GL_MAX_TEXTURE_LOD_BIAS_EXT, "GL_MAX_TEXTURE_LOD_BIAS_EXT", "GL_EXT_texture_lod_bias" },
++#endif
++#if defined(GL_EXT_texture_filter_anisotropic)
++ { 1, GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, "GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT", "GL_EXT_texture_filter_anisotropic" },
++#endif
++#if defined(GL_ARB_draw_buffers)
++ { 1, GL_MAX_DRAW_BUFFERS_ARB, "GL_MAX_DRAW_BUFFERS_ARB", "GL_ARB_draw_buffers" },
++#endif
++#if defined(GL_ARB_blend_func_extended)
++ { 1, GL_MAX_DUAL_SOURCE_DRAW_BUFFERS, "GL_MAX_DUAL_SOURCE_DRAW_BUFFERS", "GL_ARB_blend_func_extended" },
++#endif
++#if defined (GL_ARB_framebuffer_object)
++ { 1, GL_MAX_RENDERBUFFER_SIZE, "GL_MAX_RENDERBUFFER_SIZE", "GL_ARB_framebuffer_object" },
++ { 1, GL_MAX_COLOR_ATTACHMENTS, "GL_MAX_COLOR_ATTACHMENTS", "GL_ARB_framebuffer_object" },
++ { 1, GL_MAX_SAMPLES, "GL_MAX_SAMPLES", "GL_ARB_framebuffer_object" },
++#endif
++#if defined (GL_EXT_transform_feedback)
++ { 1, GL_MAX_TRANSFORM_FEEDBACK_BUFFERS, "GL_MAX_TRANSFORM_FEEDBACK_BUFFERS", "GL_EXT_transform_feedback" },
++ { 1, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT, "GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS", "GL_EXT_transform_feedback" },
++ { 1, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT, "GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS", "GL_EXT_transform_feedback", },
++ { 1, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT, "GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS", "GL_EXT_transform_feedback" },
++#endif
++#if defined (GL_ARB_texture_buffer_object)
++ { 1, GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT, "GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT", "GL_ARB_texture_buffer_object" },
++ { 1, GL_MAX_TEXTURE_BUFFER_SIZE, "GL_MAX_TEXTURE_BUFFER_SIZE", "GL_ARB_texture_buffer_object" },
++#endif
++#if defined (GL_ARB_texture_multisample)
++ { 1, GL_MAX_COLOR_TEXTURE_SAMPLES, "GL_MAX_COLOR_TEXTURE_SAMPLES", "GL_ARB_texture_multisample" },
++ { 1, GL_MAX_DEPTH_TEXTURE_SAMPLES, "GL_MAX_DEPTH_TEXTURE_SAMPLES", "GL_ARB_texture_multisample" },
++ { 1, GL_MAX_INTEGER_SAMPLES, "GL_MAX_INTEGER_SAMPLES", "GL_ARB_texture_multisample" },
++#endif
++#if defined (GL_ARB_uniform_buffer_object)
++ { 1, GL_MAX_VERTEX_UNIFORM_BLOCKS, "GL_MAX_VERTEX_UNIFORM_BLOCKS", "GL_ARB_uniform_buffer_object" },
++ { 1, GL_MAX_FRAGMENT_UNIFORM_BLOCKS, "GL_MAX_FRAGMENT_UNIFORM_BLOCKS", "GL_ARB_uniform_buffer_object" },
++ { 1, GL_MAX_GEOMETRY_UNIFORM_BLOCKS, "GL_MAX_GEOMETRY_UNIFORM_BLOCKS" , "GL_ARB_uniform_buffer_object" },
++ { 1, GL_MAX_COMBINED_UNIFORM_BLOCKS, "GL_MAX_COMBINED_UNIFORM_BLOCKS", "GL_ARB_uniform_buffer_object" },
++ { 1, GL_MAX_UNIFORM_BUFFER_BINDINGS, "GL_MAX_UNIFORM_BUFFER_BINDINGS", "GL_ARB_uniform_buffer_object" },
++ { 1, GL_MAX_UNIFORM_BLOCK_SIZE, "GL_MAX_UNIFORM_BLOCK_SIZE", "GL_ARB_uniform_buffer_object" },
++ { 1, GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, "GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS", "GL_ARB_uniform_buffer_object" },
++ { 1, GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS, "GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS", "GL_ARB_uniform_buffer_object" },
++ { 1, GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS, "GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS", "GL_ARB_uniform_buffer_object" },
++ { 1, GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, "GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT", "GL_ARB_uniform_buffer_object" },
++#endif
++#if defined (GL_ARB_vertex_attrib_binding)
++ { 1, GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET, "GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET", "GL_ARB_vertex_attrib_binding" },
++ { 1, GL_MAX_VERTEX_ATTRIB_BINDINGS, "GL_MAX_VERTEX_ATTRIB_BINDINGS", "GL_ARB_vertex_attrib_binding" },
++#endif
++#if defined(GL_VERSION_4_4)
++ { 1, GL_MAX_VERTEX_ATTRIB_STRIDE, "GL_MAX_VERTEX_ATTRIB_STRIDE", "4.4" },
++#endif
++ { 0, (GLenum) 0, NULL, NULL }
++ };
++ GLint i, max[2];
++
++ printf("%s limits:\n", oglstring);
++ for (i = 0; limits[i].count; i++) {
++ if (!limits[i].extension ||
++ version_supported(limits[i].extension, version) ||
++ extension_supported(limits[i].extension, extensions)) {
++ glGetIntegerv(limits[i].token, max);
++ if (glGetError() == GL_NO_ERROR) {
++ if (limits[i].count == 1)
++ printf(" %s = %d\n", limits[i].name, max[0]);
++ else /* XXX fix if we ever query something with more than 2 values */
++ printf(" %s = %d, %d\n", limits[i].name, max[0], max[1]);
++ }
++ }
++ }
++
++ /* these don't fit into the above mechanism, unfortunately */
++ if (extension_supported("GL_ARB_imaging", extensions)) {
++ extfuncs->GetConvolutionParameteriv(GL_CONVOLUTION_2D,
++ GL_MAX_CONVOLUTION_WIDTH, max);
++ extfuncs->GetConvolutionParameteriv(GL_CONVOLUTION_2D,
++ GL_MAX_CONVOLUTION_HEIGHT, max+1);
++ printf(" GL_MAX_CONVOLUTION_WIDTH/HEIGHT = %d, %d\n", max[0], max[1]);
++ }
++
++ if (extension_supported("GL_ARB_texture_compression", extensions)) {
++ GLint i, n;
++ GLint *formats;
++ glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &n);
++ printf(" GL_NUM_COMPRESSED_TEXTURE_FORMATS = %d\n", n);
++ formats = (GLint *) malloc(n * sizeof(GLint));
++ glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, formats);
++ for (i = 0; i < n; i++) {
++ printf(" %s\n", enum_name(formats[i]));
++ }
++ free(formats);
++ }
++#if defined(GL_ARB_vertex_program)
++ if (extension_supported("GL_ARB_vertex_program", extensions)) {
++ print_program_limits(GL_VERTEX_PROGRAM_ARB, extfuncs);
++ }
++#endif
++#if defined(GL_ARB_fragment_program)
++ if (extension_supported("GL_ARB_fragment_program", extensions)) {
++ print_program_limits(GL_FRAGMENT_PROGRAM_ARB, extfuncs);
++ }
++#endif
++ if (extension_supported("GL_ARB_vertex_shader", extensions)) {
++ print_shader_limits(GL_VERTEX_SHADER_ARB);
++ }
++ if (extension_supported("GL_ARB_fragment_shader", extensions)) {
++ print_shader_limits(GL_FRAGMENT_SHADER_ARB);
++ }
++ if (version >= 32) {
++ print_shader_limits(GL_GEOMETRY_SHADER);
++ }
++}
++
++
++
++/**
++ * Return string representation for bits in a bitmask.
++ */
++const char *
++bitmask_to_string(const struct bit_info bits[], int numBits, int mask)
++{
++ static char buffer[256], *p;
++ int i;
++
++ strcpy(buffer, "(none)");
++ p = buffer;
++ for (i = 0; i < numBits; i++) {
++ if (mask & bits[i].bit) {
++ if (p > buffer)
++ *p++ = ',';
++ strcpy(p, bits[i].name);
++ p += strlen(bits[i].name);
++ }
++ }
++
++ return buffer;
++}
++
++/**
++ * Return string representation for the bitmask returned by
++ * GL_CONTEXT_PROFILE_MASK (OpenGL 3.2 or later).
++ */
++const char *
++profile_mask_string(int mask)
++{
++ const static struct bit_info bits[] = {
++#ifdef GL_CONTEXT_CORE_PROFILE_BIT
++ { GL_CONTEXT_CORE_PROFILE_BIT, "core profile"},
++#endif
++#ifdef GL_CONTEXT_COMPATIBILITY_PROFILE_BIT
++ { GL_CONTEXT_COMPATIBILITY_PROFILE_BIT, "compatibility profile" }
++#endif
++ };
++
++ return bitmask_to_string(bits, ELEMENTS(bits), mask);
++}
++
++
++/**
++ * Return string representation for the bitmask returned by
++ * GL_CONTEXT_FLAGS (OpenGL 3.0 or later).
++ */
++const char *
++context_flags_string(int mask)
++{
++ const static struct bit_info bits[] = {
++#ifdef GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT
++ { GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT, "forward-compatible" },
++#endif
++#ifdef GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB
++ { GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB, "robust-access" },
++#endif
++ };
++
++ return bitmask_to_string(bits, ELEMENTS(bits), mask);
++}
++
++
++static void
++usage(void)
++{
++#ifdef _WIN32
++ printf("Usage: wglinfo [-v] [-t] [-h] [-b] [-l] [-s]\n");
++#else
++ printf("Usage: glxinfo [-v] [-t] [-h] [-b] [-l] [-s] [-i] [-display <dname>]\n");
++ printf("\t-display <dname>: Print GLX visuals on specified server.\n");
++ printf("\t-i: Force an indirect rendering context.\n");
++#endif
++ printf("\t-B: brief output, print only the basics.\n");
++ printf("\t-v: Print visuals info in verbose form.\n");
++ printf("\t-t: Print verbose table.\n");
++ printf("\t-h: This information.\n");
++ printf("\t-b: Find the 'best' visual and print its number.\n");
++ printf("\t-l: Print interesting OpenGL limits.\n");
++ printf("\t-s: Print a single extension per line.\n");
++}
++
++void
++parse_args(int argc, char *argv[], struct options *options)
++{
++ int i;
++
++ options->mode = Normal;
++ options->findBest = GL_FALSE;
++ options->limits = GL_FALSE;
++ options->singleLine = GL_FALSE;
++ options->displayName = NULL;
++ options->allowDirect = GL_TRUE;
++
++ for (i = 1; i < argc; i++) {
++#ifndef _WIN32
++ if (strcmp(argv[i], "-display") == 0 && i + 1 < argc) {
++ options->displayName = argv[i + 1];
++ i++;
++ }
++ else if (strcmp(argv[i], "-i") == 0) {
++ options->allowDirect = GL_FALSE;
++ }
++ else
++#endif
++ if (strcmp(argv[i], "-t") == 0) {
++ options->mode = Wide;
++ }
++ else if (strcmp(argv[i], "-v") == 0) {
++ options->mode = Verbose;
++ }
++ else if (strcmp(argv[i], "-B") == 0) {
++ options->mode = Brief;
++ }
++ else if (strcmp(argv[i], "-b") == 0) {
++ options->findBest = GL_TRUE;
++ }
++ else if (strcmp(argv[i], "-l") == 0) {
++ options->limits = GL_TRUE;
++ }
++ else if (strcmp(argv[i], "-h") == 0) {
++ usage();
++ exit(0);
++ }
++ else if(strcmp(argv[i], "-s") == 0) {
++ options->singleLine = GL_TRUE;
++ }
++ else {
++ printf("Unknown option `%s'\n", argv[i]);
++ usage();
++ exit(0);
++ }
++ }
++}
+diff -Naurp mesa-20.2.1-orig/src/glx/xdemos/glinfo_common.h mesa-20.2.1/src/glx/xdemos/glinfo_common.h
+--- mesa-20.2.1-orig/src/glx/xdemos/glinfo_common.h 1969-12-31 18:00:00.000000000 -0600
++++ mesa-20.2.1/src/glx/xdemos/glinfo_common.h 2020-10-15 23:06:45.826695773 -0500
+@@ -0,0 +1,142 @@
++/*
++ * Copyright (C) 1999-2014 Brian Paul 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, 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
++ * BRIAN PAUL 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.
++ */
++
++
++/**
++ * Common code shared by glxinfo and wglinfo.
++ */
++
++#ifndef GLINFO_COMMON_H
++#define GLINFO_COMMON_H
++
++
++#ifdef _WIN32
++/* GL/glext.h is not commonly available on Windows. */
++#include <GL/glew.h>
++#else
++#include <GL/gl.h>
++#include <GL/glext.h>
++#endif
++
++typedef void (APIENTRY * GETPROGRAMIVARBPROC) (GLenum target, GLenum pname, GLint *params);
++typedef const GLubyte *(APIENTRY * GETSTRINGIPROC) (GLenum name, GLuint index);
++typedef void (APIENTRY * GETCONVOLUTIONPARAMETERIVPROC) (GLenum target, GLenum pname, GLint *params);
++
++
++/**
++ * Ext functions needed in common code but must be provided by
++ * glxinfo or wglinfo.
++ */
++struct ext_functions
++{
++ GETPROGRAMIVARBPROC GetProgramivARB;
++ GETSTRINGIPROC GetStringi;
++ GETCONVOLUTIONPARAMETERIVPROC GetConvolutionParameteriv;
++};
++
++
++#define ELEMENTS(array) (sizeof(array) / sizeof(array[0]))
++
++
++struct bit_info
++{
++ int bit;
++ const char *name;
++};
++
++
++typedef enum
++{
++ Normal,
++ Wide,
++ Verbose,
++ Brief
++} InfoMode;
++
++
++struct options
++{
++ InfoMode mode;
++ GLboolean findBest;
++ GLboolean limits;
++ GLboolean singleLine;
++ /* GLX only */
++ char *displayName;
++ GLboolean allowDirect;
++};
++
++
++/** list of known OpenGL versions */
++static const struct { int major, minor; } gl_versions[] = {
++ {4, 5},
++ {4, 4},
++ {4, 3},
++ {4, 2},
++ {4, 1},
++ {4, 0},
++
++ {3, 3},
++ {3, 2},
++ {3, 1},
++ {3, 0},
++
++ {2, 1},
++ {2, 0},
++
++ {1, 5},
++ {1, 4},
++ {1, 3},
++ {1, 2},
++ {1, 1},
++ {1, 0},
++
++ {0, 0} /* end of list */
++};
++
++
++void
++print_extension_list(const char *ext, GLboolean singleLine);
++
++char *
++build_core_profile_extension_list(const struct ext_functions *extfuncs);
++
++GLboolean
++extension_supported(const char *ext, const char *extensionsList);
++
++void
++print_limits(const char *extensions, const char *oglstring, int version,
++ const struct ext_functions *extfuncs);
++
++const char *
++bitmask_to_string(const struct bit_info bits[], int numBits, int mask);
++
++const char *
++profile_mask_string(int mask);
++
++const char *
++context_flags_string(int mask);
++
++
++void
++parse_args(int argc, char *argv[], struct options *options);
++
++
++#endif /* GLINFO_COMMON_H */
+diff -Naurp mesa-20.2.1-orig/src/glx/xdemos/glxgears.1 mesa-20.2.1/src/glx/xdemos/glxgears.1
+--- mesa-20.2.1-orig/src/glx/xdemos/glxgears.1 1969-12-31 18:00:00.000000000 -0600
++++ mesa-20.2.1/src/glx/xdemos/glxgears.1 2020-10-15 23:06:45.826695773 -0500
+@@ -0,0 +1,37 @@
++.TH glxgears 1 "2006-11-29"
++.SH NAME
++glxgears \- ``gears'' demo for GLX
++.SH SYNOPSIS
++.B glxgears
++.RI [ options ]
++.SH DESCRIPTION
++The \fIglxgears\fP program is a port of the ``gears'' demo to GLX. It displays
++a set of rotating gears and prints out the frame rate at regular intervals. It
++has become quite popular as basic benchmarking tool.
++.SH OPTIONS
++.TP 8
++.B \-display \fIdisplay\fP
++Specify which X display to run on.
++.TP 8
++.B \-stereo
++Use a stereo enabled GLX visual.
++.TP 8
++.B \-samples \fIN\fP
++Run in multisample mode with at least N samples.
++.TP 8
++.B \-fullscreen
++Run in fullscreen mode.
++.TP 8
++.B \-info
++Display OpenGL renderer information.
++.TP 8
++.B \-geometry \fIWxH+X+Y\fP
++Window geometry.
++.SH AUTHOR
++glxgears was written by Brian Paul <brian.paul@tungstengraphics.com>.
++.PP
++This manual page was written by Thierry Reding <thierry@gilfi.de>, for the
++Debian project and updated by Fernando de Oliveira <famobr at yahoo dot
++com dot br>, for the Linux From Scratch (LFS) project (but may be used by
++others).
++
+diff -Naurp mesa-20.2.1-orig/src/glx/xdemos/glxgears.c mesa-20.2.1/src/glx/xdemos/glxgears.c
+--- mesa-20.2.1-orig/src/glx/xdemos/glxgears.c 1969-12-31 18:00:00.000000000 -0600
++++ mesa-20.2.1/src/glx/xdemos/glxgears.c 2020-10-15 23:06:45.826695773 -0500
+@@ -0,0 +1,809 @@
++/*
++ * Copyright (C) 1999-2001 Brian Paul 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, 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
++ * BRIAN PAUL 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.
++ */
++
++/*
++ * This is a port of the infamous "gears" demo to straight GLX (i.e. no GLUT)
++ * Port by Brian Paul 23 March 2001
++ *
++ * See usage() below for command line options.
++ */
++
++
++#include <math.h>
++#include <stdlib.h>
++#include <stdio.h>
++#include <string.h>
++#include <X11/Xlib.h>
++#include <X11/keysym.h>
++#include <GL/gl.h>
++#include <GL/glx.h>
++#include <GL/glxext.h>
++
++#ifndef GLX_MESA_swap_control
++#define GLX_MESA_swap_control 1
++typedef int (*PFNGLXGETSWAPINTERVALMESAPROC)(void);
++#endif
++
++
++#define BENCHMARK
++
++#ifdef BENCHMARK
++
++/* XXX this probably isn't very portable */
++
++#include <sys/time.h>
++#include <unistd.h>
++
++/* return current time (in seconds) */
++static double
++current_time(void)
++{
++ struct timeval tv;
++#ifdef __VMS
++ (void) gettimeofday(&tv, NULL );
++#else
++ struct timezone tz;
++ (void) gettimeofday(&tv, &tz);
++#endif
++ return (double) tv.tv_sec + tv.tv_usec / 1000000.0;
++}
++
++#else /*BENCHMARK*/
++
++/* dummy */
++static double
++current_time(void)
++{
++ /* update this function for other platforms! */
++ static double t = 0.0;
++ static int warn = 1;
++ if (warn) {
++ fprintf(stderr, "Warning: current_time() not implemented!!\n");
++ warn = 0;
++ }
++ return t += 1.0;
++}
++
++#endif /*BENCHMARK*/
++
++
++
++#ifndef M_PI
++#define M_PI 3.14159265
++#endif
++
++
++/** Event handler results: */
++#define NOP 0
++#define EXIT 1
++#define DRAW 2
++
++static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
++static GLint gear1, gear2, gear3;
++static GLfloat angle = 0.0;
++
++static GLboolean fullscreen = GL_FALSE; /* Create a single fullscreen window */
++static GLboolean stereo = GL_FALSE; /* Enable stereo. */
++static GLint samples = 0; /* Choose visual with at least N samples. */
++static GLboolean animate = GL_TRUE; /* Animation */
++static GLfloat eyesep = 5.0; /* Eye separation. */
++static GLfloat fix_point = 40.0; /* Fixation point distance. */
++static GLfloat left, right, asp; /* Stereo frustum params. */
++
++
++/*
++ *
++ * Draw a gear wheel. You'll probably want to call this function when
++ * building a display list since we do a lot of trig here.
++ *
++ * Input: inner_radius - radius of hole at center
++ * outer_radius - radius at center of teeth
++ * width - width of gear
++ * teeth - number of teeth
++ * tooth_depth - depth of tooth
++ */
++static void
++gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
++ GLint teeth, GLfloat tooth_depth)
++{
++ GLint i;
++ GLfloat r0, r1, r2;
++ GLfloat angle, da;
++ GLfloat u, v, len;
++
++ r0 = inner_radius;
++ r1 = outer_radius - tooth_depth / 2.0;
++ r2 = outer_radius + tooth_depth / 2.0;
++
++ da = 2.0 * M_PI / teeth / 4.0;
++
++ glShadeModel(GL_FLAT);
++
++ glNormal3f(0.0, 0.0, 1.0);
++
++ /* draw front face */
++ glBegin(GL_QUAD_STRIP);
++ for (i = 0; i <= teeth; i++) {
++ angle = i * 2.0 * M_PI / teeth;
++ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
++ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
++ if (i < teeth) {
++ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
++ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
++ width * 0.5);
++ }
++ }
++ glEnd();
++
++ /* draw front sides of teeth */
++ glBegin(GL_QUADS);
++ da = 2.0 * M_PI / teeth / 4.0;
++ for (i = 0; i < teeth; i++) {
++ angle = i * 2.0 * M_PI / teeth;
++
++ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
++ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
++ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
++ width * 0.5);
++ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
++ width * 0.5);
++ }
++ glEnd();
++
++ glNormal3f(0.0, 0.0, -1.0);
++
++ /* draw back face */
++ glBegin(GL_QUAD_STRIP);
++ for (i = 0; i <= teeth; i++) {
++ angle = i * 2.0 * M_PI / teeth;
++ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
++ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
++ if (i < teeth) {
++ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
++ -width * 0.5);
++ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
++ }
++ }
++ glEnd();
++
++ /* draw back sides of teeth */
++ glBegin(GL_QUADS);
++ da = 2.0 * M_PI / teeth / 4.0;
++ for (i = 0; i < teeth; i++) {
++ angle = i * 2.0 * M_PI / teeth;
++
++ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
++ -width * 0.5);
++ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
++ -width * 0.5);
++ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
++ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
++ }
++ glEnd();
++
++ /* draw outward faces of teeth */
++ glBegin(GL_QUAD_STRIP);
++ for (i = 0; i < teeth; i++) {
++ angle = i * 2.0 * M_PI / teeth;
++
++ glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
++ glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
++ u = r2 * cos(angle + da) - r1 * cos(angle);
++ v = r2 * sin(angle + da) - r1 * sin(angle);
++ len = sqrt(u * u + v * v);
++ u /= len;
++ v /= len;
++ glNormal3f(v, -u, 0.0);
++ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
++ glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
++ glNormal3f(cos(angle), sin(angle), 0.0);
++ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
++ width * 0.5);
++ glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
++ -width * 0.5);
++ u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
++ v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
++ glNormal3f(v, -u, 0.0);
++ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
++ width * 0.5);
++ glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
++ -width * 0.5);
++ glNormal3f(cos(angle), sin(angle), 0.0);
++ }
++
++ glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
++ glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
++
++ glEnd();
++
++ glShadeModel(GL_SMOOTH);
++
++ /* draw inside radius cylinder */
++ glBegin(GL_QUAD_STRIP);
++ for (i = 0; i <= teeth; i++) {
++ angle = i * 2.0 * M_PI / teeth;
++ glNormal3f(-cos(angle), -sin(angle), 0.0);
++ glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
++ glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
++ }
++ glEnd();
++}
++
++
++static void
++draw(void)
++{
++ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
++
++ glPushMatrix();
++ glRotatef(view_rotx, 1.0, 0.0, 0.0);
++ glRotatef(view_roty, 0.0, 1.0, 0.0);
++ glRotatef(view_rotz, 0.0, 0.0, 1.0);
++
++ glPushMatrix();
++ glTranslatef(-3.0, -2.0, 0.0);
++ glRotatef(angle, 0.0, 0.0, 1.0);
++ glCallList(gear1);
++ glPopMatrix();
++
++ glPushMatrix();
++ glTranslatef(3.1, -2.0, 0.0);
++ glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
++ glCallList(gear2);
++ glPopMatrix();
++
++ glPushMatrix();
++ glTranslatef(-3.1, 4.2, 0.0);
++ glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
++ glCallList(gear3);
++ glPopMatrix();
++
++ glPopMatrix();
++}
++
++
++static void
++draw_gears(void)
++{
++ if (stereo) {
++ /* First left eye. */
++ glDrawBuffer(GL_BACK_LEFT);
++
++ glMatrixMode(GL_PROJECTION);
++ glLoadIdentity();
++ glFrustum(left, right, -asp, asp, 5.0, 60.0);
++
++ glMatrixMode(GL_MODELVIEW);
++
++ glPushMatrix();
++ glTranslated(+0.5 * eyesep, 0.0, 0.0);
++ draw();
++ glPopMatrix();
++
++ /* Then right eye. */
++ glDrawBuffer(GL_BACK_RIGHT);
++
++ glMatrixMode(GL_PROJECTION);
++ glLoadIdentity();
++ glFrustum(-right, -left, -asp, asp, 5.0, 60.0);
++
++ glMatrixMode(GL_MODELVIEW);
++
++ glPushMatrix();
++ glTranslated(-0.5 * eyesep, 0.0, 0.0);
++ draw();
++ glPopMatrix();
++ }
++ else {
++ draw();
++ }
++}
++
++
++/** Draw single frame, do SwapBuffers, compute FPS */
++static void
++draw_frame(Display *dpy, Window win)
++{
++ static int frames = 0;
++ static double tRot0 = -1.0, tRate0 = -1.0;
++ double dt, t = current_time();
++
++ if (tRot0 < 0.0)
++ tRot0 = t;
++ dt = t - tRot0;
++ tRot0 = t;
++
++ if (animate) {
++ /* advance rotation for next frame */
++ angle += 70.0 * dt; /* 70 degrees per second */
++ if (angle > 3600.0)
++ angle -= 3600.0;
++ }
++
++ draw_gears();
++ glXSwapBuffers(dpy, win);
++
++ frames++;
++
++ if (tRate0 < 0.0)
++ tRate0 = t;
++ if (t - tRate0 >= 5.0) {
++ GLfloat seconds = t - tRate0;
++ GLfloat fps = frames / seconds;
++ printf("%d frames in %3.1f seconds = %6.3f FPS\n", frames, seconds,
++ fps);
++ fflush(stdout);
++ tRate0 = t;
++ frames = 0;
++ }
++}
++
++
++/* new window size or exposure */
++static void
++reshape(int width, int height)
++{
++ glViewport(0, 0, (GLint) width, (GLint) height);
++
++ if (stereo) {
++ GLfloat w;
++
++ asp = (GLfloat) height / (GLfloat) width;
++ w = fix_point * (1.0 / 5.0);
++
++ left = -5.0 * ((w - 0.5 * eyesep) / fix_point);
++ right = 5.0 * ((w + 0.5 * eyesep) / fix_point);
++ }
++ else {
++ GLfloat h = (GLfloat) height / (GLfloat) width;
++
++ glMatrixMode(GL_PROJECTION);
++ glLoadIdentity();
++ glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
++ }
++
++ glMatrixMode(GL_MODELVIEW);
++ glLoadIdentity();
++ glTranslatef(0.0, 0.0, -40.0);
++}
++
++
++
++static void
++init(void)
++{
++ static GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
++ static GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
++ static GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
++ static GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
++
++ glLightfv(GL_LIGHT0, GL_POSITION, pos);
++ glEnable(GL_CULL_FACE);
++ glEnable(GL_LIGHTING);
++ glEnable(GL_LIGHT0);
++ glEnable(GL_DEPTH_TEST);
++
++ /* make the gears */
++ gear1 = glGenLists(1);
++ glNewList(gear1, GL_COMPILE);
++ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
++ gear(1.0, 4.0, 1.0, 20, 0.7);
++ glEndList();
++
++ gear2 = glGenLists(1);
++ glNewList(gear2, GL_COMPILE);
++ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
++ gear(0.5, 2.0, 2.0, 10, 0.7);
++ glEndList();
++
++ gear3 = glGenLists(1);
++ glNewList(gear3, GL_COMPILE);
++ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
++ gear(1.3, 2.0, 0.5, 10, 0.7);
++ glEndList();
++
++ glEnable(GL_NORMALIZE);
++}
++
++
++/**
++ * Remove window border/decorations.
++ */
++static void
++no_border( Display *dpy, Window w)
++{
++ static const unsigned MWM_HINTS_DECORATIONS = (1 << 1);
++ static const int PROP_MOTIF_WM_HINTS_ELEMENTS = 5;
++
++ typedef struct
++ {
++ unsigned long flags;
++ unsigned long functions;
++ unsigned long decorations;
++ long inputMode;
++ unsigned long status;
++ } PropMotifWmHints;
++
++ PropMotifWmHints motif_hints;
++ Atom prop, proptype;
++ unsigned long flags = 0;
++
++ /* setup the property */
++ motif_hints.flags = MWM_HINTS_DECORATIONS;
++ motif_hints.decorations = flags;
++
++ /* get the atom for the property */
++ prop = XInternAtom( dpy, "_MOTIF_WM_HINTS", True );
++ if (!prop) {
++ /* something went wrong! */
++ return;
++ }
++
++ /* not sure this is correct, seems to work, XA_WM_HINTS didn't work */
++ proptype = prop;
++
++ XChangeProperty( dpy, w, /* display, window */
++ prop, proptype, /* property, type */
++ 32, /* format: 32-bit datums */
++ PropModeReplace, /* mode */
++ (unsigned char *) &motif_hints, /* data */
++ PROP_MOTIF_WM_HINTS_ELEMENTS /* nelements */
++ );
++}
++
++
++/*
++ * Create an RGB, double-buffered window.
++ * Return the window and context handles.
++ */
++static void
++make_window( Display *dpy, const char *name,
++ int x, int y, int width, int height,
++ Window *winRet, GLXContext *ctxRet, VisualID *visRet)
++{
++ int attribs[64];
++ int i = 0;
++
++ int scrnum;
++ XSetWindowAttributes attr;
++ unsigned long mask;
++ Window root;
++ Window win;
++ GLXContext ctx;
++ XVisualInfo *visinfo;
++
++ /* Singleton attributes. */
++ attribs[i++] = GLX_RGBA;
++ attribs[i++] = GLX_DOUBLEBUFFER;
++ if (stereo)
++ attribs[i++] = GLX_STEREO;
++
++ /* Key/value attributes. */
++ attribs[i++] = GLX_RED_SIZE;
++ attribs[i++] = 1;
++ attribs[i++] = GLX_GREEN_SIZE;
++ attribs[i++] = 1;
++ attribs[i++] = GLX_BLUE_SIZE;
++ attribs[i++] = 1;
++ attribs[i++] = GLX_DEPTH_SIZE;
++ attribs[i++] = 1;
++ if (samples > 0) {
++ attribs[i++] = GLX_SAMPLE_BUFFERS;
++ attribs[i++] = 1;
++ attribs[i++] = GLX_SAMPLES;
++ attribs[i++] = samples;
++ }
++
++ attribs[i++] = None;
++
++ scrnum = DefaultScreen( dpy );
++ root = RootWindow( dpy, scrnum );
++
++ visinfo = glXChooseVisual(dpy, scrnum, attribs);
++ if (!visinfo) {
++ printf("Error: couldn't get an RGB, Double-buffered");
++ if (stereo)
++ printf(", Stereo");
++ if (samples > 0)
++ printf(", Multisample");
++ printf(" visual\n");
++ exit(1);
++ }
++
++ /* window attributes */
++ attr.background_pixel = 0;
++ attr.border_pixel = 0;
++ attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
++ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
++ /* XXX this is a bad way to get a borderless window! */
++ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
++
++ win = XCreateWindow( dpy, root, x, y, width, height,
++ 0, visinfo->depth, InputOutput,
++ visinfo->visual, mask, &attr );
++
++ if (fullscreen)
++ no_border(dpy, win);
++
++ /* set hints and properties */
++ {
++ XSizeHints sizehints;
++ sizehints.x = x;
++ sizehints.y = y;
++ sizehints.width = width;
++ sizehints.height = height;
++ sizehints.flags = USSize | USPosition;
++ XSetNormalHints(dpy, win, &sizehints);
++ XSetStandardProperties(dpy, win, name, name,
++ None, (char **)NULL, 0, &sizehints);
++ }
++
++ ctx = glXCreateContext( dpy, visinfo, NULL, True );
++ if (!ctx) {
++ printf("Error: glXCreateContext failed\n");
++ exit(1);
++ }
++
++ *winRet = win;
++ *ctxRet = ctx;
++ *visRet = visinfo->visualid;
++
++ XFree(visinfo);
++}
++
++
++/**
++ * Determine whether or not a GLX extension is supported.
++ */
++static int
++is_glx_extension_supported(Display *dpy, const char *query)
++{
++ const int scrnum = DefaultScreen(dpy);
++ const char *glx_extensions = NULL;
++ const size_t len = strlen(query);
++ const char *ptr;
++
++ if (glx_extensions == NULL) {
++ glx_extensions = glXQueryExtensionsString(dpy, scrnum);
++ }
++
++ ptr = strstr(glx_extensions, query);
++ return ((ptr != NULL) && ((ptr[len] == ' ') || (ptr[len] == '\0')));
++}
++
++
++/**
++ * Attempt to determine whether or not the display is synched to vblank.
++ */
++static void
++query_vsync(Display *dpy, GLXDrawable drawable)
++{
++ int interval = 0;
++
++#if defined(GLX_EXT_swap_control)
++ if (is_glx_extension_supported(dpy, "GLX_EXT_swap_control")) {
++ unsigned int tmp = -1;
++ glXQueryDrawable(dpy, drawable, GLX_SWAP_INTERVAL_EXT, &tmp);
++ interval = tmp;
++ } else
++#endif
++ if (is_glx_extension_supported(dpy, "GLX_MESA_swap_control")) {
++ PFNGLXGETSWAPINTERVALMESAPROC pglXGetSwapIntervalMESA =
++ (PFNGLXGETSWAPINTERVALMESAPROC)
++ glXGetProcAddressARB((const GLubyte *) "glXGetSwapIntervalMESA");
++
++ interval = (*pglXGetSwapIntervalMESA)();
++ } else if (is_glx_extension_supported(dpy, "GLX_SGI_swap_control")) {
++ /* The default swap interval with this extension is 1. Assume that it
++ * is set to the default.
++ *
++ * Many Mesa-based drivers default to 0, but all of these drivers also
++ * export GLX_MESA_swap_control. In that case, this branch will never
++ * be taken, and the correct result should be reported.
++ */
++ interval = 1;
++ }
++
++
++ if (interval > 0) {
++ printf("Running synchronized to the vertical refresh. The framerate should be\n");
++ if (interval == 1) {
++ printf("approximately the same as the monitor refresh rate.\n");
++ } else if (interval > 1) {
++ printf("approximately 1/%d the monitor refresh rate.\n",
++ interval);
++ }
++ }
++}
++
++/**
++ * Handle one X event.
++ * \return NOP, EXIT or DRAW
++ */
++static int
++handle_event(Display *dpy, Window win, XEvent *event)
++{
++ (void) dpy;
++ (void) win;
++
++ switch (event->type) {
++ case Expose:
++ return DRAW;
++ case ConfigureNotify:
++ reshape(event->xconfigure.width, event->xconfigure.height);
++ break;
++ case KeyPress:
++ {
++ char buffer[10];
++ int code;
++ code = XLookupKeysym(&event->xkey, 0);
++ if (code == XK_Left) {
++ view_roty += 5.0;
++ }
++ else if (code == XK_Right) {
++ view_roty -= 5.0;
++ }
++ else if (code == XK_Up) {
++ view_rotx += 5.0;
++ }
++ else if (code == XK_Down) {
++ view_rotx -= 5.0;
++ }
++ else {
++ XLookupString(&event->xkey, buffer, sizeof(buffer),
++ NULL, NULL);
++ if (buffer[0] == 27) {
++ /* escape */
++ return EXIT;
++ }
++ else if (buffer[0] == 'a' || buffer[0] == 'A') {
++ animate = !animate;
++ }
++ }
++ return DRAW;
++ }
++ }
++ return NOP;
++}
++
++
++static void
++event_loop(Display *dpy, Window win)
++{
++ while (1) {
++ int op;
++ while (!animate || XPending(dpy) > 0) {
++ XEvent event;
++ XNextEvent(dpy, &event);
++ op = handle_event(dpy, win, &event);
++ if (op == EXIT)
++ return;
++ else if (op == DRAW)
++ break;
++ }
++
++ draw_frame(dpy, win);
++ }
++}
++
++
++static void
++usage(void)
++{
++ printf("Usage:\n");
++ printf(" -display <displayname> set the display to run on\n");
++ printf(" -stereo run in stereo mode\n");
++ printf(" -samples N run in multisample mode with at least N samples\n");
++ printf(" -fullscreen run in fullscreen mode\n");
++ printf(" -info display OpenGL renderer info\n");
++ printf(" -geometry WxH+X+Y window geometry\n");
++}
++
++
++int
++main(int argc, char *argv[])
++{
++ unsigned int winWidth = 300, winHeight = 300;
++ int x = 0, y = 0;
++ Display *dpy;
++ Window win;
++ GLXContext ctx;
++ char *dpyName = NULL;
++ GLboolean printInfo = GL_FALSE;
++ VisualID visId;
++ int i;
++
++ for (i = 1; i < argc; i++) {
++ if (strcmp(argv[i], "-display") == 0) {
++ dpyName = argv[i+1];
++ i++;
++ }
++ else if (strcmp(argv[i], "-info") == 0) {
++ printInfo = GL_TRUE;
++ }
++ else if (strcmp(argv[i], "-stereo") == 0) {
++ stereo = GL_TRUE;
++ }
++ else if (i < argc-1 && strcmp(argv[i], "-samples") == 0) {
++ samples = strtod(argv[i+1], NULL );
++ ++i;
++ }
++ else if (strcmp(argv[i], "-fullscreen") == 0) {
++ fullscreen = GL_TRUE;
++ }
++ else if (i < argc-1 && strcmp(argv[i], "-geometry") == 0) {
++ XParseGeometry(argv[i+1], &x, &y, &winWidth, &winHeight);
++ i++;
++ }
++ else {
++ usage();
++ return -1;
++ }
++ }
++
++ dpy = XOpenDisplay(dpyName);
++ if (!dpy) {
++ printf("Error: couldn't open display %s\n",
++ dpyName ? dpyName : getenv("DISPLAY"));
++ return -1;
++ }
++
++ if (fullscreen) {
++ int scrnum = DefaultScreen(dpy);
++
++ x = 0; y = 0;
++ winWidth = DisplayWidth(dpy, scrnum);
++ winHeight = DisplayHeight(dpy, scrnum);
++ }
++
++ make_window(dpy, "glxgears", x, y, winWidth, winHeight, &win, &ctx, &visId);
++ XMapWindow(dpy, win);
++ glXMakeCurrent(dpy, win, ctx);
++ query_vsync(dpy, win);
++
++ if (printInfo) {
++ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
++ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
++ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
++ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
++ printf("VisualID %d, 0x%x\n", (int) visId, (int) visId);
++ }
++
++ init();
++
++ /* Set initial projection/viewing transformation.
++ * We can't be sure we'll get a ConfigureNotify event when the window
++ * first appears.
++ */
++ reshape(winWidth, winHeight);
++
++ event_loop(dpy, win);
++
++ glDeleteLists(gear1, 1);
++ glDeleteLists(gear2, 1);
++ glDeleteLists(gear3, 1);
++ glXMakeCurrent(dpy, None, NULL);
++ glXDestroyContext(dpy, ctx);
++ XDestroyWindow(dpy, win);
++ XCloseDisplay(dpy);
++
++ return 0;
++}
+diff -Naurp mesa-20.2.1-orig/src/glx/xdemos/glxinfo.1 mesa-20.2.1/src/glx/xdemos/glxinfo.1
+--- mesa-20.2.1-orig/src/glx/xdemos/glxinfo.1 1969-12-31 18:00:00.000000000 -0600
++++ mesa-20.2.1/src/glx/xdemos/glxinfo.1 2020-10-15 23:06:45.826695773 -0500
+@@ -0,0 +1,46 @@
++.TH glxinfo 1 "2006-11-29"
++.SH NAME
++glxinfo \- show information about the GLX implementation
++.SH SYNOPSIS
++.B glxinfo
++.RI [ options ]
++.SH DESCRIPTION
++The \fIglxinfo\fP program shows information about the OpenGL and GLX
++implementations running on a given X display.
++.PP
++The information includes details about the server- and client-side GLX
++implementation, the OpenGL and GLU implementations as well as a list
++of available GLX visuals.
++.SH OPTIONS
++.TP 8
++.B \-v
++Print visuals info in verbose form.
++.TP 8
++.B \-t
++Print verbose table.
++.TP 8
++.B \-display \fIdisplay\fP
++Specify the X display to interrogate.
++.TP 8
++.B \-h
++Print usage information.
++.TP 8
++.B \-i
++Force an indirect rendering context.
++.TP 8
++.B \-b
++Find the "best" visual and print its number.
++.TP 8
++.B \-l
++Print interesting OpenGL limits.
++.TP 8
++.B \-s
++Print a single extension per line.
++.SH AUTHOR
++glxinfo was written by Brian Paul <brian.paul@tungstengraphics.com>.
++.PP
++This manual page was written by Thierry Reding <thierry@gilfi.de>, for the
++Debian project and updated by Fernando de Oliveira <famobr at yahoo dot
++com dot br>, for the Linux From Scratch (LFS) project (but may be used by
++others).
++
+diff -Naurp mesa-20.2.1-orig/src/glx/xdemos/glxinfo.c mesa-20.2.1/src/glx/xdemos/glxinfo.c
+--- mesa-20.2.1-orig/src/glx/xdemos/glxinfo.c 1969-12-31 18:00:00.000000000 -0600
++++ mesa-20.2.1/src/glx/xdemos/glxinfo.c 2020-10-15 23:06:45.826695773 -0500
+@@ -0,0 +1,1281 @@
++/*
++ * Copyright (C) 1999-2006 Brian Paul 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, 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
++ * BRIAN PAUL 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.
++ */
++
++
++/*
++ * This program is a work-alike of the IRIX glxinfo program.
++ * Command line options:
++ * -t print wide table
++ * -v print verbose information
++ * -display DisplayName specify the X display to interogate
++ * -B brief, print only the basics
++ * -b only print ID of "best" visual on screen 0
++ * -i use indirect rendering connection only
++ * -l print interesting OpenGL limits (added 5 Sep 2002)
++ *
++ * Brian Paul 26 January 2000
++ */
++
++#define GLX_GLXEXT_PROTOTYPES
++#define GL_GLEXT_PROTOTYPES
++
++#include <assert.h>
++#include <X11/Xlib.h>
++#include <X11/Xutil.h>
++#include <GL/gl.h>
++#include <GL/glx.h>
++#include <stdio.h>
++#include <string.h>
++#include <stdlib.h>
++#include "glinfo_common.h"
++
++
++#ifndef GLX_NONE_EXT
++#define GLX_NONE_EXT 0x8000
++#endif
++
++#ifndef GLX_TRANSPARENT_RGB
++#define GLX_TRANSPARENT_RGB 0x8008
++#endif
++
++#ifndef GLX_RGBA_BIT
++#define GLX_RGBA_BIT 0x00000001
++#endif
++
++#ifndef GLX_COLOR_INDEX_BIT
++#define GLX_COLOR_INDEX_BIT 0x00000002
++#endif
++
++
++struct visual_attribs
++{
++ /* X visual attribs */
++ int id; /* May be visual ID or FBConfig ID */
++ int vis_id; /* Visual ID. Only set for FBConfigs */
++ int klass;
++ int depth;
++ int redMask, greenMask, blueMask;
++ int colormapSize;
++ int bitsPerRGB;
++
++ /* GL visual attribs */
++ int supportsGL;
++ int drawableType;
++ int transparentType;
++ int transparentRedValue;
++ int transparentGreenValue;
++ int transparentBlueValue;
++ int transparentAlphaValue;
++ int transparentIndexValue;
++ int bufferSize;
++ int level;
++ int render_type;
++ int doubleBuffer;
++ int stereo;
++ int auxBuffers;
++ int redSize, greenSize, blueSize, alphaSize;
++ int depthSize;
++ int stencilSize;
++ int accumRedSize, accumGreenSize, accumBlueSize, accumAlphaSize;
++ int numSamples, numMultisample;
++ int visualCaveat;
++ int floatComponents;
++ int packedfloatComponents;
++ int srgb;
++};
++
++
++/**
++ * Version of the context that was created
++ *
++ * 20, 21, 30, 31, 32, etc.
++ */
++static int version;
++
++/**
++ * GL Error checking/warning.
++ */
++static void
++CheckError(int line)
++{
++ int n;
++ n = glGetError();
++ if (n)
++ printf("Warning: GL error 0x%x at line %d\n", n, line);
++}
++
++
++static void
++print_display_info(Display *dpy)
++{
++ printf("name of display: %s\n", DisplayString(dpy));
++}
++
++
++/**
++ * Choose a simple FB Config.
++ */
++static GLXFBConfig *
++choose_fb_config(Display *dpy, int scrnum)
++{
++ int fbAttribSingle[] = {
++ GLX_RENDER_TYPE, GLX_RGBA_BIT,
++ GLX_RED_SIZE, 1,
++ GLX_GREEN_SIZE, 1,
++ GLX_BLUE_SIZE, 1,
++ GLX_DOUBLEBUFFER, False,
++ None };
++ int fbAttribDouble[] = {
++ GLX_RENDER_TYPE, GLX_RGBA_BIT,
++ GLX_RED_SIZE, 1,
++ GLX_GREEN_SIZE, 1,
++ GLX_BLUE_SIZE, 1,
++ GLX_DOUBLEBUFFER, True,
++ None };
++ GLXFBConfig *configs;
++ int nConfigs;
++
++ configs = glXChooseFBConfig(dpy, scrnum, fbAttribSingle, &nConfigs);
++ if (!configs)
++ configs = glXChooseFBConfig(dpy, scrnum, fbAttribDouble, &nConfigs);
++
++ return configs;
++}
++
++
++static Bool CreateContextErrorFlag;
++
++static int
++create_context_error_handler(Display *dpy, XErrorEvent *error)
++{
++ (void) dpy;
++ (void) error->error_code;
++ CreateContextErrorFlag = True;
++ return 0;
++}
++
++
++/**
++ * Try to create a GLX context of the given version with flags/options.
++ * Note: A version number is required in order to get a core profile
++ * (at least w/ NVIDIA).
++ */
++static GLXContext
++create_context_flags(Display *dpy, GLXFBConfig fbconfig, int major, int minor,
++ int contextFlags, int profileMask, Bool direct)
++{
++#ifdef GLX_ARB_create_context
++ static PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB_func = 0;
++ static Bool firstCall = True;
++ int (*old_handler)(Display *, XErrorEvent *);
++ GLXContext context;
++ int attribs[20];
++ int n = 0;
++
++ if (firstCall) {
++ /* See if we have GLX_ARB_create_context_profile and get pointer to
++ * glXCreateContextAttribsARB() function.
++ */
++ const char *glxExt = glXQueryExtensionsString(dpy, 0);
++ if (extension_supported("GLX_ARB_create_context_profile", glxExt)) {
++ glXCreateContextAttribsARB_func = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
++ glXGetProcAddress((const GLubyte *) "glXCreateContextAttribsARB");
++ }
++ firstCall = False;
++ }
++
++ if (!glXCreateContextAttribsARB_func)
++ return 0;
++
++ /* setup attribute array */
++ if (major) {
++ attribs[n++] = GLX_CONTEXT_MAJOR_VERSION_ARB;
++ attribs[n++] = major;
++ attribs[n++] = GLX_CONTEXT_MINOR_VERSION_ARB;
++ attribs[n++] = minor;
++ }
++ if (contextFlags) {
++ attribs[n++] = GLX_CONTEXT_FLAGS_ARB;
++ attribs[n++] = contextFlags;
++ }
++#ifdef GLX_ARB_create_context_profile
++ if (profileMask) {
++ attribs[n++] = GLX_CONTEXT_PROFILE_MASK_ARB;
++ attribs[n++] = profileMask;
++ }
++#endif
++ attribs[n++] = 0;
++
++ /* install X error handler */
++ old_handler = XSetErrorHandler(create_context_error_handler);
++ CreateContextErrorFlag = False;
++
++ /* try creating context */
++ context = glXCreateContextAttribsARB_func(dpy,
++ fbconfig,
++ 0, /* share_context */
++ direct,
++ attribs);
++
++ /* restore error handler */
++ XSetErrorHandler(old_handler);
++
++ if (CreateContextErrorFlag)
++ context = 0;
++
++ if (context && direct) {
++ if (!glXIsDirect(dpy, context)) {
++ glXDestroyContext(dpy, context);
++ return 0;
++ }
++ }
++
++ return context;
++#else
++ return 0;
++#endif
++}
++
++
++/**
++ * Try to create a GLX context of the newest version.
++ */
++static GLXContext
++create_context_with_config(Display *dpy, GLXFBConfig config,
++ Bool coreProfile, Bool es2Profile, Bool direct)
++{
++ GLXContext ctx = 0;
++
++ if (coreProfile) {
++ /* Try to create a core profile, starting with the newest version of
++ * GL that we're aware of. If we don't specify the version
++ */
++ int i;
++ for (i = 0; gl_versions[i].major > 0; i++) {
++ /* don't bother below GL 3.0 */
++ if (gl_versions[i].major == 3 &&
++ gl_versions[i].minor == 0)
++ return 0;
++ ctx = create_context_flags(dpy, config,
++ gl_versions[i].major,
++ gl_versions[i].minor,
++ 0x0,
++ GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
++ direct);
++ if (ctx)
++ return ctx;
++ }
++ /* couldn't get core profile context */
++ return 0;
++ }
++
++ if (es2Profile) {
++#ifdef GLX_CONTEXT_ES2_PROFILE_BIT_EXT
++ if (extension_supported("GLX_EXT_create_context_es2_profile",
++ glXQueryExtensionsString(dpy, 0))) {
++ ctx = create_context_flags(dpy, config, 2, 0, 0x0,
++ GLX_CONTEXT_ES2_PROFILE_BIT_EXT,
++ direct);
++ return ctx;
++ }
++#endif
++ return 0;
++ }
++
++ /* GLX should return a context of the latest GL version that supports
++ * the full profile.
++ */
++ ctx = glXCreateNewContext(dpy, config, GLX_RGBA_TYPE, NULL, direct);
++
++ /* make sure the context is direct, if direct was requested */
++ if (ctx && direct) {
++ if (!glXIsDirect(dpy, ctx)) {
++ glXDestroyContext(dpy, ctx);
++ return 0;
++ }
++ }
++
++ return ctx;
++}
++
++
++static XVisualInfo *
++choose_xvisinfo(Display *dpy, int scrnum)
++{
++ int attribSingle[] = {
++ GLX_RGBA,
++ GLX_RED_SIZE, 1,
++ GLX_GREEN_SIZE, 1,
++ GLX_BLUE_SIZE, 1,
++ None };
++ int attribDouble[] = {
++ GLX_RGBA,
++ GLX_RED_SIZE, 1,
++ GLX_GREEN_SIZE, 1,
++ GLX_BLUE_SIZE, 1,
++ GLX_DOUBLEBUFFER,
++ None };
++ XVisualInfo *visinfo;
++
++ visinfo = glXChooseVisual(dpy, scrnum, attribSingle);
++ if (!visinfo)
++ visinfo = glXChooseVisual(dpy, scrnum, attribDouble);
++
++ return visinfo;
++}
++
++
++static void
++query_renderer(void)
++{
++#ifdef GLX_MESA_query_renderer
++ PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC queryInteger;
++ PFNGLXQUERYCURRENTRENDERERSTRINGMESAPROC queryString;
++ unsigned int v[3];
++
++ queryInteger = (PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC)
++ glXGetProcAddressARB((const GLubyte *)
++ "glXQueryCurrentRendererIntegerMESA");
++ queryString = (PFNGLXQUERYCURRENTRENDERERSTRINGMESAPROC)
++ glXGetProcAddressARB((const GLubyte *)
++ "glXQueryCurrentRendererStringMESA");
++
++ printf("Extended renderer info (GLX_MESA_query_renderer):\n");
++ queryInteger(GLX_RENDERER_VENDOR_ID_MESA, v);
++ printf(" Vendor: %s (0x%x)\n",
++ queryString(GLX_RENDERER_VENDOR_ID_MESA), *v);
++ queryInteger(GLX_RENDERER_DEVICE_ID_MESA, v);
++ printf(" Device: %s (0x%x)\n",
++ queryString(GLX_RENDERER_DEVICE_ID_MESA), *v);
++ queryInteger(GLX_RENDERER_VERSION_MESA, v);
++ printf(" Version: %d.%d.%d\n", v[0], v[1], v[2]);
++ queryInteger(GLX_RENDERER_ACCELERATED_MESA, v);
++ printf(" Accelerated: %s\n", *v ? "yes" : "no");
++ queryInteger(GLX_RENDERER_VIDEO_MEMORY_MESA, v);
++ printf(" Video memory: %dMB\n", *v);
++ queryInteger(GLX_RENDERER_UNIFIED_MEMORY_ARCHITECTURE_MESA, v);
++ printf(" Unified memory: %s\n", *v ? "yes" : "no");
++ queryInteger(GLX_RENDERER_PREFERRED_PROFILE_MESA, v);
++ printf(" Preferred profile: %s (0x%x)\n",
++ *v == GLX_CONTEXT_CORE_PROFILE_BIT_ARB ? "core" :
++ *v == GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB ? "compat" :
++ "unknown", *v);
++ queryInteger(GLX_RENDERER_OPENGL_CORE_PROFILE_VERSION_MESA, v);
++ printf(" Max core profile version: %d.%d\n", v[0], v[1]);
++ queryInteger(GLX_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION_MESA, v);
++ printf(" Max compat profile version: %d.%d\n", v[0], v[1]);
++ queryInteger(GLX_RENDERER_OPENGL_ES_PROFILE_VERSION_MESA, v);
++ printf(" Max GLES1 profile version: %d.%d\n", v[0], v[1]);
++ queryInteger(GLX_RENDERER_OPENGL_ES2_PROFILE_VERSION_MESA, v);
++ printf(" Max GLES[23] profile version: %d.%d\n", v[0], v[1]);
++#endif
++}
++
++
++static Bool
++print_screen_info(Display *dpy, int scrnum,
++ const struct options *opts,
++ Bool coreProfile, Bool es2Profile, Bool limits,
++ Bool coreWorked)
++{
++ Window win;
++ XSetWindowAttributes attr;
++ unsigned long mask;
++ Window root;
++ GLXContext ctx = NULL;
++ XVisualInfo *visinfo;
++ int width = 100, height = 100;
++ GLXFBConfig *fbconfigs;
++ const char *oglstring = coreProfile ? "OpenGL core profile" :
++ es2Profile ? "OpenGL ES profile" : "OpenGL";
++
++ root = RootWindow(dpy, scrnum);
++
++ /*
++ * Choose FBConfig or XVisualInfo and create a context.
++ */
++ fbconfigs = choose_fb_config(dpy, scrnum);
++ if (fbconfigs) {
++ ctx = create_context_with_config(dpy, fbconfigs[0],
++ coreProfile, es2Profile,
++ opts->allowDirect);
++ if (!ctx && opts->allowDirect && !coreProfile) {
++ /* try indirect */
++ ctx = create_context_with_config(dpy, fbconfigs[0],
++ coreProfile, es2Profile, False);
++ }
++
++ visinfo = glXGetVisualFromFBConfig(dpy, fbconfigs[0]);
++ XFree(fbconfigs);
++ }
++ else if (!coreProfile && !es2Profile) {
++ visinfo = choose_xvisinfo(dpy, scrnum);
++ if (visinfo)
++ ctx = glXCreateContext(dpy, visinfo, NULL, opts->allowDirect);
++ } else
++ visinfo = NULL;
++
++ if (!visinfo && !coreProfile && !es2Profile) {
++ fprintf(stderr, "Error: couldn't find RGB GLX visual or fbconfig\n");
++ return False;
++ }
++
++ if (!ctx) {
++ if (!coreProfile && !es2Profile)
++ fprintf(stderr, "Error: glXCreateContext failed\n");
++ XFree(visinfo);
++ return False;
++ }
++
++ /*
++ * Create a window so that we can just bind the context.
++ */
++ attr.background_pixel = 0;
++ attr.border_pixel = 0;
++ attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
++ attr.event_mask = StructureNotifyMask | ExposureMask;
++ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
++ win = XCreateWindow(dpy, root, 0, 0, width, height,
++ 0, visinfo->depth, InputOutput,
++ visinfo->visual, mask, &attr);
++
++ if (glXMakeCurrent(dpy, win, ctx)) {
++ const char *serverVendor = glXQueryServerString(dpy, scrnum, GLX_VENDOR);
++ const char *serverVersion = glXQueryServerString(dpy, scrnum, GLX_VERSION);
++ const char *serverExtensions = glXQueryServerString(dpy, scrnum, GLX_EXTENSIONS);
++ const char *clientVendor = glXGetClientString(dpy, GLX_VENDOR);
++ const char *clientVersion = glXGetClientString(dpy, GLX_VERSION);
++ const char *clientExtensions = glXGetClientString(dpy, GLX_EXTENSIONS);
++ const char *glxExtensions = glXQueryExtensionsString(dpy, scrnum);
++ const char *glVendor = (const char *) glGetString(GL_VENDOR);
++ const char *glRenderer = (const char *) glGetString(GL_RENDERER);
++ const char *glVersion = (const char *) glGetString(GL_VERSION);
++ char *glExtensions = NULL;
++ int glxVersionMajor = 0;
++ int glxVersionMinor = 0;
++ char *displayName = NULL;
++ char *colon = NULL, *period = NULL;
++ struct ext_functions extfuncs;
++
++ CheckError(__LINE__);
++
++ /* Get some ext functions */
++ extfuncs.GetProgramivARB = (GETPROGRAMIVARBPROC)
++ glXGetProcAddressARB((GLubyte *) "glGetProgramivARB");
++ extfuncs.GetStringi = (GETSTRINGIPROC)
++ glXGetProcAddressARB((GLubyte *) "glGetStringi");
++ extfuncs.GetConvolutionParameteriv = (GETCONVOLUTIONPARAMETERIVPROC)
++ glXGetProcAddressARB((GLubyte *) "glGetConvolutionParameteriv");
++
++ if (!glXQueryVersion(dpy, & glxVersionMajor, & glxVersionMinor)) {
++ fprintf(stderr, "Error: glXQueryVersion failed\n");
++ exit(1);
++ }
++
++ /* Get list of GL extensions */
++ if (coreProfile && extfuncs.GetStringi)
++ glExtensions = build_core_profile_extension_list(&extfuncs);
++ if (!glExtensions) {
++ coreProfile = False;
++ glExtensions = (char *) glGetString(GL_EXTENSIONS);
++ }
++
++ CheckError(__LINE__);
++
++ if (!coreWorked) {
++ /* Strip the screen number from the display name, if present. */
++ if (!(displayName = (char *) malloc(strlen(DisplayString(dpy)) + 1))) {
++ fprintf(stderr, "Error: malloc() failed\n");
++ exit(1);
++ }
++ strcpy(displayName, DisplayString(dpy));
++ colon = strrchr(displayName, ':');
++ if (colon) {
++ period = strchr(colon, '.');
++ if (period)
++ *period = '\0';
++ }
++
++ printf("display: %s screen: %d\n", displayName, scrnum);
++ free(displayName);
++ printf("direct rendering: ");
++ if (glXIsDirect(dpy, ctx)) {
++ printf("Yes\n");
++ }
++ else {
++ if (!opts->allowDirect) {
++ printf("No (-i specified)\n");
++ }
++ else if (getenv("LIBGL_ALWAYS_INDIRECT")) {
++ printf("No (LIBGL_ALWAYS_INDIRECT set)\n");
++ }
++ else {
++ printf("No (If you want to find out why, try setting "
++ "LIBGL_DEBUG=verbose)\n");
++ }
++ }
++ if (opts->mode != Brief) {
++ printf("server glx vendor string: %s\n", serverVendor);
++ printf("server glx version string: %s\n", serverVersion);
++ printf("server glx extensions:\n");
++ print_extension_list(serverExtensions, opts->singleLine);
++ printf("client glx vendor string: %s\n", clientVendor);
++ printf("client glx version string: %s\n", clientVersion);
++ printf("client glx extensions:\n");
++ print_extension_list(clientExtensions, opts->singleLine);
++ printf("GLX version: %u.%u\n", glxVersionMajor, glxVersionMinor);
++ printf("GLX extensions:\n");
++ print_extension_list(glxExtensions, opts->singleLine);
++ }
++ if (strstr(glxExtensions, "GLX_MESA_query_renderer"))
++ query_renderer();
++ printf("OpenGL vendor string: %s\n", glVendor);
++ printf("OpenGL renderer string: %s\n", glRenderer);
++ } else
++ printf("\n");
++
++ printf("%s version string: %s\n", oglstring, glVersion);
++
++ version = (glVersion[0] - '0') * 10 + (glVersion[2] - '0');
++
++ CheckError(__LINE__);
++
++#ifdef GL_VERSION_2_0
++ if (version >= 20) {
++ char *v = (char *) glGetString(GL_SHADING_LANGUAGE_VERSION);
++ printf("%s shading language version string: %s\n", oglstring, v);
++ }
++#endif
++ CheckError(__LINE__);
++#ifdef GL_VERSION_3_0
++ if (version >= 30 && !es2Profile) {
++ GLint flags;
++ glGetIntegerv(GL_CONTEXT_FLAGS, &flags);
++ printf("%s context flags: %s\n", oglstring, context_flags_string(flags));
++ }
++#endif
++ CheckError(__LINE__);
++#ifdef GL_VERSION_3_2
++ if (version >= 32 && !es2Profile) {
++ GLint mask;
++ glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
++ printf("%s profile mask: %s\n", oglstring, profile_mask_string(mask));
++ }
++#endif
++
++ CheckError(__LINE__);
++
++ if (opts->mode != Brief) {
++ printf("%s extensions:\n", oglstring);
++ print_extension_list(glExtensions, opts->singleLine);
++ }
++
++ if (limits) {
++ print_limits(glExtensions, oglstring, version, &extfuncs);
++ }
++
++ if (coreProfile)
++ free(glExtensions);
++ }
++ else {
++ fprintf(stderr, "Error: glXMakeCurrent failed\n");
++ }
++
++ glXDestroyContext(dpy, ctx);
++ XFree(visinfo);
++ XDestroyWindow(dpy, win);
++ XSync(dpy, 1);
++ return True;
++}
++
++
++static const char *
++visual_class_name(int cls)
++{
++ switch (cls) {
++ case StaticColor:
++ return "StaticColor";
++ case PseudoColor:
++ return "PseudoColor";
++ case StaticGray:
++ return "StaticGray";
++ case GrayScale:
++ return "GrayScale";
++ case TrueColor:
++ return "TrueColor";
++ case DirectColor:
++ return "DirectColor";
++ default:
++ return "";
++ }
++}
++
++static const char *
++visual_drawable_type(int type)
++{
++ const static struct bit_info bits[] = {
++ { GLX_WINDOW_BIT, "window" },
++ { GLX_PIXMAP_BIT, "pixmap" },
++ { GLX_PBUFFER_BIT, "pbuffer" }
++ };
++
++ return bitmask_to_string(bits, ELEMENTS(bits), type);
++}
++
++static const char *
++visual_class_abbrev(int cls)
++{
++ switch (cls) {
++ case StaticColor:
++ return "sc";
++ case PseudoColor:
++ return "pc";
++ case StaticGray:
++ return "sg";
++ case GrayScale:
++ return "gs";
++ case TrueColor:
++ return "tc";
++ case DirectColor:
++ return "dc";
++ default:
++ return "";
++ }
++}
++
++static const char *
++visual_render_type_name(int type)
++{
++ switch (type) {
++ case GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT:
++ return "ufloat";
++ case GLX_RGBA_FLOAT_BIT_ARB:
++ return "float";
++ case GLX_RGBA_BIT:
++ return "rgba";
++ case GLX_COLOR_INDEX_BIT:
++ return "ci";
++ case GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT:
++ return "rgba|ci";
++ default:
++ return "";
++ }
++}
++
++static const char *
++caveat_string(int caveat)
++{
++ switch (caveat) {
++#ifdef GLX_EXT_visual_rating
++ case GLX_SLOW_VISUAL_EXT:
++ return "Slow";
++ case GLX_NON_CONFORMANT_VISUAL_EXT:
++ return "Ncon";
++ case GLX_NONE_EXT:
++ /* fall-through */
++#endif
++ case 0:
++ /* fall-through */
++ default:
++ return "None";
++ }
++}
++
++
++static Bool
++get_visual_attribs(Display *dpy, XVisualInfo *vInfo,
++ struct visual_attribs *attribs)
++{
++ const char *ext = glXQueryExtensionsString(dpy, vInfo->screen);
++ int rgba;
++
++ memset(attribs, 0, sizeof(struct visual_attribs));
++
++ attribs->id = vInfo->visualid;
++#if defined(__cplusplus) || defined(c_plusplus)
++ attribs->klass = vInfo->c_class;
++#else
++ attribs->klass = vInfo->class;
++#endif
++ attribs->depth = vInfo->depth;
++ attribs->redMask = vInfo->red_mask;
++ attribs->greenMask = vInfo->green_mask;
++ attribs->blueMask = vInfo->blue_mask;
++ attribs->colormapSize = vInfo->colormap_size;
++ attribs->bitsPerRGB = vInfo->bits_per_rgb;
++
++ if (glXGetConfig(dpy, vInfo, GLX_USE_GL, &attribs->supportsGL) != 0 ||
++ !attribs->supportsGL)
++ return False;
++ glXGetConfig(dpy, vInfo, GLX_BUFFER_SIZE, &attribs->bufferSize);
++ glXGetConfig(dpy, vInfo, GLX_LEVEL, &attribs->level);
++ glXGetConfig(dpy, vInfo, GLX_RGBA, &rgba);
++ if (rgba)
++ attribs->render_type = GLX_RGBA_BIT;
++ else
++ attribs->render_type = GLX_COLOR_INDEX_BIT;
++
++ glXGetConfig(dpy, vInfo, GLX_DRAWABLE_TYPE, &attribs->drawableType);
++ glXGetConfig(dpy, vInfo, GLX_DOUBLEBUFFER, &attribs->doubleBuffer);
++ glXGetConfig(dpy, vInfo, GLX_STEREO, &attribs->stereo);
++ glXGetConfig(dpy, vInfo, GLX_AUX_BUFFERS, &attribs->auxBuffers);
++ glXGetConfig(dpy, vInfo, GLX_RED_SIZE, &attribs->redSize);
++ glXGetConfig(dpy, vInfo, GLX_GREEN_SIZE, &attribs->greenSize);
++ glXGetConfig(dpy, vInfo, GLX_BLUE_SIZE, &attribs->blueSize);
++ glXGetConfig(dpy, vInfo, GLX_ALPHA_SIZE, &attribs->alphaSize);
++ glXGetConfig(dpy, vInfo, GLX_DEPTH_SIZE, &attribs->depthSize);
++ glXGetConfig(dpy, vInfo, GLX_STENCIL_SIZE, &attribs->stencilSize);
++ glXGetConfig(dpy, vInfo, GLX_ACCUM_RED_SIZE, &attribs->accumRedSize);
++ glXGetConfig(dpy, vInfo, GLX_ACCUM_GREEN_SIZE, &attribs->accumGreenSize);
++ glXGetConfig(dpy, vInfo, GLX_ACCUM_BLUE_SIZE, &attribs->accumBlueSize);
++ glXGetConfig(dpy, vInfo, GLX_ACCUM_ALPHA_SIZE, &attribs->accumAlphaSize);
++
++ /* get transparent pixel stuff */
++ glXGetConfig(dpy, vInfo,GLX_TRANSPARENT_TYPE, &attribs->transparentType);
++ if (attribs->transparentType == GLX_TRANSPARENT_RGB) {
++ glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_RED_VALUE, &attribs->transparentRedValue);
++ glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_GREEN_VALUE, &attribs->transparentGreenValue);
++ glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_BLUE_VALUE, &attribs->transparentBlueValue);
++ glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_ALPHA_VALUE, &attribs->transparentAlphaValue);
++ }
++ else if (attribs->transparentType == GLX_TRANSPARENT_INDEX) {
++ glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_INDEX_VALUE, &attribs->transparentIndexValue);
++ }
++
++ /* multisample attribs */
++#ifdef GLX_ARB_multisample
++ if (ext && strstr(ext, "GLX_ARB_multisample")) {
++ glXGetConfig(dpy, vInfo, GLX_SAMPLE_BUFFERS_ARB, &attribs->numMultisample);
++ glXGetConfig(dpy, vInfo, GLX_SAMPLES_ARB, &attribs->numSamples);
++ }
++#endif
++ else {
++ attribs->numSamples = 0;
++ attribs->numMultisample = 0;
++ }
++
++#if defined(GLX_EXT_visual_rating)
++ if (ext && strstr(ext, "GLX_EXT_visual_rating")) {
++ glXGetConfig(dpy, vInfo, GLX_VISUAL_CAVEAT_EXT, &attribs->visualCaveat);
++ }
++ else {
++ attribs->visualCaveat = GLX_NONE_EXT;
++ }
++#else
++ attribs->visualCaveat = 0;
++#endif
++
++#if defined(GLX_EXT_framebuffer_sRGB)
++ if (ext && strstr(ext, "GLX_EXT_framebuffer_sRGB")) {
++ glXGetConfig(dpy, vInfo, GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT, &attribs->srgb);
++ }
++#endif
++
++ return True;
++}
++
++#ifdef GLX_VERSION_1_3
++
++static int
++glx_token_to_visual_class(int visual_type)
++{
++ switch (visual_type) {
++ case GLX_TRUE_COLOR:
++ return TrueColor;
++ case GLX_DIRECT_COLOR:
++ return DirectColor;
++ case GLX_PSEUDO_COLOR:
++ return PseudoColor;
++ case GLX_STATIC_COLOR:
++ return StaticColor;
++ case GLX_GRAY_SCALE:
++ return GrayScale;
++ case GLX_STATIC_GRAY:
++ return StaticGray;
++ case GLX_NONE:
++ default:
++ return None;
++ }
++}
++
++static Bool
++get_fbconfig_attribs(Display *dpy, GLXFBConfig fbconfig,
++ struct visual_attribs *attribs)
++{
++ const char *ext = glXQueryExtensionsString(dpy, 0);
++ int visual_type;
++ XVisualInfo *vInfo;
++
++ memset(attribs, 0, sizeof(struct visual_attribs));
++
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_FBCONFIG_ID, &attribs->id);
++
++ vInfo = glXGetVisualFromFBConfig(dpy, fbconfig);
++
++ if (vInfo != NULL) {
++ attribs->vis_id = vInfo->visualid;
++ attribs->depth = vInfo->depth;
++ attribs->redMask = vInfo->red_mask;
++ attribs->greenMask = vInfo->green_mask;
++ attribs->blueMask = vInfo->blue_mask;
++ attribs->colormapSize = vInfo->colormap_size;
++ attribs->bitsPerRGB = vInfo->bits_per_rgb;
++ }
++
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_X_VISUAL_TYPE, &visual_type);
++ attribs->klass = glx_token_to_visual_class(visual_type);
++
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_DRAWABLE_TYPE, &attribs->drawableType);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_BUFFER_SIZE, &attribs->bufferSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_LEVEL, &attribs->level);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_RENDER_TYPE, &attribs->render_type);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_DOUBLEBUFFER, &attribs->doubleBuffer);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_STEREO, &attribs->stereo);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_AUX_BUFFERS, &attribs->auxBuffers);
++
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_RED_SIZE, &attribs->redSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_GREEN_SIZE, &attribs->greenSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_BLUE_SIZE, &attribs->blueSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_ALPHA_SIZE, &attribs->alphaSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_DEPTH_SIZE, &attribs->depthSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_STENCIL_SIZE, &attribs->stencilSize);
++
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_ACCUM_RED_SIZE, &attribs->accumRedSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_ACCUM_GREEN_SIZE, &attribs->accumGreenSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_ACCUM_BLUE_SIZE, &attribs->accumBlueSize);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_ACCUM_ALPHA_SIZE, &attribs->accumAlphaSize);
++
++ /* get transparent pixel stuff */
++ glXGetFBConfigAttrib(dpy, fbconfig,GLX_TRANSPARENT_TYPE, &attribs->transparentType);
++ if (attribs->transparentType == GLX_TRANSPARENT_RGB) {
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_RED_VALUE, &attribs->transparentRedValue);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_GREEN_VALUE, &attribs->transparentGreenValue);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_BLUE_VALUE, &attribs->transparentBlueValue);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_ALPHA_VALUE, &attribs->transparentAlphaValue);
++ }
++ else if (attribs->transparentType == GLX_TRANSPARENT_INDEX) {
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_INDEX_VALUE, &attribs->transparentIndexValue);
++ }
++
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_SAMPLE_BUFFERS, &attribs->numMultisample);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_SAMPLES, &attribs->numSamples);
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_CONFIG_CAVEAT, &attribs->visualCaveat);
++
++#if defined(GLX_NV_float_buffer)
++ if (ext && strstr(ext, "GLX_NV_float_buffer")) {
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_FLOAT_COMPONENTS_NV, &attribs->floatComponents);
++ }
++#endif
++#if defined(GLX_ARB_fbconfig_float)
++ if (ext && strstr(ext, "GLX_ARB_fbconfig_float")) {
++ if (attribs->render_type & GLX_RGBA_FLOAT_BIT_ARB) {
++ attribs->floatComponents = True;
++ }
++ }
++#endif
++#if defined(GLX_EXT_fbconfig_packed_float)
++ if (ext && strstr(ext, "GLX_EXT_fbconfig_packed_float")) {
++ if (attribs->render_type & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) {
++ attribs->packedfloatComponents = True;
++ }
++ }
++#endif
++
++#if defined(GLX_EXT_framebuffer_sRGB)
++ if (ext && strstr(ext, "GLX_EXT_framebuffer_sRGB")) {
++ glXGetFBConfigAttrib(dpy, fbconfig, GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT, &attribs->srgb);
++ }
++#endif
++ return True;
++}
++
++#endif
++
++
++
++static void
++print_visual_attribs_verbose(const struct visual_attribs *attribs,
++ int fbconfigs)
++{
++ if (fbconfigs) {
++ printf("FBConfig ID: %x Visual ID=%x depth=%d class=%s, type=%s\n",
++ attribs->id, attribs->vis_id, attribs->depth,
++ visual_class_name(attribs->klass),
++ visual_drawable_type(attribs->drawableType));
++ }
++ else {
++ printf("Visual ID: %x depth=%d class=%s, type=%s\n",
++ attribs->id, attribs->depth, visual_class_name(attribs->klass),
++ visual_drawable_type(attribs->drawableType));
++ }
++ printf(" bufferSize=%d level=%d renderType=%s doubleBuffer=%d stereo=%d\n",
++ attribs->bufferSize, attribs->level,
++ visual_render_type_name(attribs->render_type),
++ attribs->doubleBuffer, attribs->stereo);
++ printf(" rgba: redSize=%d greenSize=%d blueSize=%d alphaSize=%d float=%c sRGB=%c\n",
++ attribs->redSize, attribs->greenSize,
++ attribs->blueSize, attribs->alphaSize,
++ attribs->packedfloatComponents ? 'P' : attribs->floatComponents ? 'Y' : 'N',
++ attribs->srgb ? 'Y' : 'N');
++ printf(" auxBuffers=%d depthSize=%d stencilSize=%d\n",
++ attribs->auxBuffers, attribs->depthSize, attribs->stencilSize);
++ printf(" accum: redSize=%d greenSize=%d blueSize=%d alphaSize=%d\n",
++ attribs->accumRedSize, attribs->accumGreenSize,
++ attribs->accumBlueSize, attribs->accumAlphaSize);
++ printf(" multiSample=%d multiSampleBuffers=%d\n",
++ attribs->numSamples, attribs->numMultisample);
++#ifdef GLX_EXT_visual_rating
++ if (attribs->visualCaveat == GLX_NONE_EXT || attribs->visualCaveat == 0)
++ printf(" visualCaveat=None\n");
++ else if (attribs->visualCaveat == GLX_SLOW_VISUAL_EXT)
++ printf(" visualCaveat=Slow\n");
++ else if (attribs->visualCaveat == GLX_NON_CONFORMANT_VISUAL_EXT)
++ printf(" visualCaveat=Nonconformant\n");
++#endif
++ if (attribs->transparentType == GLX_NONE) {
++ printf(" Opaque.\n");
++ }
++ else if (attribs->transparentType == GLX_TRANSPARENT_RGB) {
++ printf(" Transparent RGB: Red=%d Green=%d Blue=%d Alpha=%d\n",attribs->transparentRedValue,attribs->transparentGreenValue,attribs->transparentBlueValue,attribs->transparentAlphaValue);
++ }
++ else if (attribs->transparentType == GLX_TRANSPARENT_INDEX) {
++ printf(" Transparent index=%d\n",attribs->transparentIndexValue);
++ }
++}
++
++
++static void
++print_visual_attribs_short_header(void)
++{
++ printf(" visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav\n");
++ printf(" id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat\n");
++ printf("----------------------------------------------------------------------------\n");
++}
++
++
++static void
++print_visual_attribs_short(const struct visual_attribs *attribs)
++{
++ const char *caveat = caveat_string(attribs->visualCaveat);
++
++ printf("0x%03x %2d %2s %2d %3d %2d %c%c %c %c %2d %2d %2d %2d %c %c %2d %2d %2d",
++ attribs->id,
++ attribs->depth,
++ visual_class_abbrev(attribs->klass),
++ attribs->transparentType != GLX_NONE,
++ attribs->bufferSize,
++ attribs->level,
++ (attribs->render_type & GLX_RGBA_BIT) ? 'r' : ' ',
++ (attribs->render_type & GLX_COLOR_INDEX_BIT) ? 'c' : ' ',
++ attribs->doubleBuffer ? 'y' : '.',
++ attribs->stereo ? 'y' : '.',
++ attribs->redSize, attribs->greenSize,
++ attribs->blueSize, attribs->alphaSize,
++ attribs->packedfloatComponents ? 'u' : attribs->floatComponents ? 'f' : '.',
++ attribs->srgb ? 's' : '.',
++ attribs->auxBuffers,
++ attribs->depthSize,
++ attribs->stencilSize
++ );
++
++ printf(" %2d %2d %2d %2d %2d %1d %s\n",
++ attribs->accumRedSize, attribs->accumGreenSize,
++ attribs->accumBlueSize, attribs->accumAlphaSize,
++ attribs->numSamples, attribs->numMultisample,
++ caveat
++ );
++}
++
++
++static void
++print_visual_attribs_long_header(void)
++{
++ printf("Vis Vis Visual Trans buff lev render DB ste r g b a s aux dep ste accum buffer MS MS \n");
++ printf(" ID Depth Type parent size el type reo sz sz sz sz flt rgb buf th ncl r g b a num bufs caveats\n");
++ printf("--------------------------------------------------------------------------------------------------------------------\n");
++}
++
++
++static void
++print_visual_attribs_long(const struct visual_attribs *attribs)
++{
++ const char *caveat = caveat_string(attribs->visualCaveat);
++
++ printf("0x%3x %2d %-11s %2d %3d %2d %4s %3d %3d %3d %3d %3d %3d",
++ attribs->id,
++ attribs->depth,
++ visual_class_name(attribs->klass),
++ attribs->transparentType != GLX_NONE,
++ attribs->bufferSize,
++ attribs->level,
++ visual_render_type_name(attribs->render_type),
++ attribs->doubleBuffer,
++ attribs->stereo,
++ attribs->redSize, attribs->greenSize,
++ attribs->blueSize, attribs->alphaSize
++ );
++
++ printf(" %c %c %3d %4d %2d %3d %3d %3d %3d %2d %2d %6s\n",
++ attribs->floatComponents ? 'f' : '.',
++ attribs->srgb ? 's' : '.',
++ attribs->auxBuffers,
++ attribs->depthSize,
++ attribs->stencilSize,
++ attribs->accumRedSize, attribs->accumGreenSize,
++ attribs->accumBlueSize, attribs->accumAlphaSize,
++ attribs->numSamples, attribs->numMultisample,
++ caveat
++ );
++}
++
++
++static void
++print_visual_info(Display *dpy, int scrnum, InfoMode mode)
++{
++ XVisualInfo theTemplate;
++ XVisualInfo *visuals;
++ int numVisuals, numGlxVisuals;
++ long mask;
++ int i;
++ struct visual_attribs attribs;
++
++ /* get list of all visuals on this screen */
++ theTemplate.screen = scrnum;
++ mask = VisualScreenMask;
++ visuals = XGetVisualInfo(dpy, mask, &theTemplate, &numVisuals);
++
++ numGlxVisuals = 0;
++ for (i = 0; i < numVisuals; i++) {
++ if (get_visual_attribs(dpy, &visuals[i], &attribs))
++ numGlxVisuals++;
++ }
++
++ if (numGlxVisuals == 0)
++ return;
++
++ printf("%d GLX Visuals\n", numGlxVisuals);
++
++ if (mode == Normal)
++ print_visual_attribs_short_header();
++ else if (mode == Wide)
++ print_visual_attribs_long_header();
++
++ for (i = 0; i < numVisuals; i++) {
++ if (!get_visual_attribs(dpy, &visuals[i], &attribs))
++ continue;
++
++ if (mode == Verbose)
++ print_visual_attribs_verbose(&attribs, False);
++ else if (mode == Normal)
++ print_visual_attribs_short(&attribs);
++ else if (mode == Wide)
++ print_visual_attribs_long(&attribs);
++ }
++ printf("\n");
++
++ XFree(visuals);
++}
++
++#ifdef GLX_VERSION_1_3
++
++static void
++print_fbconfig_info(Display *dpy, int scrnum, InfoMode mode)
++{
++ int numFBConfigs = 0;
++ struct visual_attribs attribs;
++ GLXFBConfig *fbconfigs;
++ int i;
++
++ /* get list of all fbconfigs on this screen */
++ fbconfigs = glXGetFBConfigs(dpy, scrnum, &numFBConfigs);
++
++ if (numFBConfigs == 0) {
++ XFree(fbconfigs);
++ return;
++ }
++
++ printf("%d GLXFBConfigs:\n", numFBConfigs);
++ if (mode == Normal)
++ print_visual_attribs_short_header();
++ else if (mode == Wide)
++ print_visual_attribs_long_header();
++
++ for (i = 0; i < numFBConfigs; i++) {
++ get_fbconfig_attribs(dpy, fbconfigs[i], &attribs);
++
++ if (mode == Verbose)
++ print_visual_attribs_verbose(&attribs, True);
++ else if (mode == Normal)
++ print_visual_attribs_short(&attribs);
++ else if (mode == Wide)
++ print_visual_attribs_long(&attribs);
++ }
++ printf("\n");
++
++ XFree(fbconfigs);
++}
++
++#endif
++
++/*
++ * Stand-alone Mesa doesn't really implement the GLX protocol so it
++ * doesn't really know the GLX attributes associated with an X visual.
++ * The first time a visual is presented to Mesa's pseudo-GLX it
++ * attaches ancilliary buffers to it (like depth and stencil).
++ * But that usually only works if glXChooseVisual is used.
++ * This function calls glXChooseVisual() to sort of "prime the pump"
++ * for Mesa's GLX so that the visuals that get reported actually
++ * reflect what applications will see.
++ * This has no effect when using true GLX.
++ */
++static void
++mesa_hack(Display *dpy, int scrnum)
++{
++ static int attribs[] = {
++ GLX_RGBA,
++ GLX_RED_SIZE, 1,
++ GLX_GREEN_SIZE, 1,
++ GLX_BLUE_SIZE, 1,
++ GLX_DEPTH_SIZE, 1,
++ GLX_STENCIL_SIZE, 1,
++ GLX_ACCUM_RED_SIZE, 1,
++ GLX_ACCUM_GREEN_SIZE, 1,
++ GLX_ACCUM_BLUE_SIZE, 1,
++ GLX_ACCUM_ALPHA_SIZE, 1,
++ GLX_DOUBLEBUFFER,
++ None
++ };
++ XVisualInfo *visinfo;
++
++ visinfo = glXChooseVisual(dpy, scrnum, attribs);
++ if (visinfo)
++ XFree(visinfo);
++}
++
++
++/*
++ * Examine all visuals to find the so-called best one.
++ * We prefer deepest RGBA buffer with depth, stencil and accum
++ * that has no caveats.
++ */
++static int
++find_best_visual(Display *dpy, int scrnum)
++{
++ XVisualInfo theTemplate;
++ XVisualInfo *visuals;
++ int numVisuals;
++ long mask;
++ int i;
++ struct visual_attribs bestVis;
++
++ /* get list of all visuals on this screen */
++ theTemplate.screen = scrnum;
++ mask = VisualScreenMask;
++ visuals = XGetVisualInfo(dpy, mask, &theTemplate, &numVisuals);
++
++ /* init bestVis with first visual info */
++ get_visual_attribs(dpy, &visuals[0], &bestVis);
++
++ /* try to find a "better" visual */
++ for (i = 1; i < numVisuals; i++) {
++ struct visual_attribs vis;
++
++ get_visual_attribs(dpy, &visuals[i], &vis);
++
++ /* always skip visuals with caveats */
++ if (vis.visualCaveat != GLX_NONE_EXT)
++ continue;
++
++ /* see if this vis is better than bestVis */
++ if ((!bestVis.supportsGL && vis.supportsGL) ||
++ (bestVis.visualCaveat != GLX_NONE_EXT) ||
++ (!(bestVis.render_type & GLX_RGBA_BIT) && (vis.render_type & GLX_RGBA_BIT)) ||
++ (!bestVis.doubleBuffer && vis.doubleBuffer) ||
++ (bestVis.redSize < vis.redSize) ||
++ (bestVis.greenSize < vis.greenSize) ||
++ (bestVis.blueSize < vis.blueSize) ||
++ (bestVis.alphaSize < vis.alphaSize) ||
++ (bestVis.depthSize < vis.depthSize) ||
++ (bestVis.stencilSize < vis.stencilSize) ||
++ (bestVis.accumRedSize < vis.accumRedSize)) {
++ /* found a better visual */
++ bestVis = vis;
++ }
++ }
++
++ XFree(visuals);
++
++ return bestVis.id;
++}
++
++
++int
++main(int argc, char *argv[])
++{
++ Display *dpy;
++ int numScreens, scrnum;
++ struct options opts;
++ Bool coreWorked;
++
++ parse_args(argc, argv, &opts);
++
++ dpy = XOpenDisplay(opts.displayName);
++ if (!dpy) {
++ fprintf(stderr, "Error: unable to open display %s\n",
++ XDisplayName(opts.displayName));
++ return -1;
++ }
++
++ if (opts.findBest) {
++ int b;
++ mesa_hack(dpy, 0);
++ b = find_best_visual(dpy, 0);
++ printf("%d\n", b);
++ }
++ else {
++ numScreens = ScreenCount(dpy);
++ print_display_info(dpy);
++ for (scrnum = 0; scrnum < numScreens; scrnum++) {
++ mesa_hack(dpy, scrnum);
++ coreWorked = print_screen_info(dpy, scrnum, &opts,
++ True, False, opts.limits, False);
++ print_screen_info(dpy, scrnum, &opts, False, False,
++ opts.limits, coreWorked);
++ print_screen_info(dpy, scrnum, &opts, False, True, False, True);
++
++ printf("\n");
++
++ if (opts.mode != Brief) {
++ print_visual_info(dpy, scrnum, opts.mode);
++#ifdef GLX_VERSION_1_3
++ print_fbconfig_info(dpy, scrnum, opts.mode);
++#endif
++ }
++
++ if (scrnum + 1 < numScreens)
++ printf("\n\n");
++ }
++ }
++
++ XCloseDisplay(dpy);
++
++ return 0;
++}
+diff -Naurp mesa-20.2.1-orig/src/glx/xdemos/meson.build mesa-20.2.1/src/glx/xdemos/meson.build
+--- mesa-20.2.1-orig/src/glx/xdemos/meson.build 1969-12-31 18:00:00.000000000 -0600
++++ mesa-20.2.1/src/glx/xdemos/meson.build 2020-10-15 23:07:14.486696790 -0500
+@@ -0,0 +1,32 @@
++inc_xdemos = include_directories('.')
++
++glxinfo_files = files(
++ 'glxinfo.c',
++ 'glinfo_common.c',
++)
++
++x11_dep = dependency('x11', required: true)
++
++executable('glxinfo', glxinfo_files,
++ install : true,
++ #c_args : gl_lib_cargs,
++ link_args : [ld_args_bsymbolic, ld_args_gc_sections, extra_ld_args_libgl, '-lm'],
++ link_with : libgl,
++ include_directories : [ inc_src, inc_include, inc_mesa, inc_glx],
++ dependencies : [x11_dep]
++)
++
++executable('glxgears', 'glxgears.c',
++ install : true,
++ #c_args : gl_lib_cargs,
++ link_args : [ld_args_bsymbolic, ld_args_gc_sections, extra_ld_args_libgl, '-lm'],
++ link_with : libgl,
++ include_directories : [inc_src, inc_include, inc_mesa, inc_glx],
++ dependencies : [x11_dep]
++)
++
++man_dir = get_option('prefix') + '/share/man/man1'
++install_data(['glxinfo.1', 'glxgears.1'],
++ install_dir : man_dir
++)
++
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-11 05:44:59 +0000