author | Matt Plumtree <matt.plumtree@nokia.com> |
Thu, 16 Sep 2010 09:43:14 +0100 | |
branch | bug235_bringup_0 |
changeset 20 | d2d6724aef32 |
permissions | -rw-r--r-- |
20
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/* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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#ifndef COMMON_H_ |
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#define COMMON_H_ |
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|
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#include <stdio.h> |
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#include <string.h> |
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#include <assert.h> |
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// Correct defines for platform detection. |
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#if(CONFIG_X11 == 1) |
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# ifndef __unix__ |
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# define __unix__ |
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# endif |
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#elif(CONFIG_OFFSCREEN == 1) |
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# define __offscreen__ |
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#elif(CONFIG_WIN32 == 1) |
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# define __win32__ |
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#else |
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# error "Backend needs to be enabled!" |
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#endif // else |
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// DLL-mangling. |
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#ifdef _WIN32 |
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# define DGLES2_EXPORT __declspec(dllexport) |
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# define DGLES2_IMPORT __declspec(dllimport) |
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# define DGLES2_CALL __stdcall |
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#else |
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# define DGLES2_EXPORT |
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# define DGLES2_IMPORT extern |
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# define DGLES2_CALL |
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#endif |
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|
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// For proper imports and exports. |
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#if(defined BUILD_EGL) |
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# define EGLAPI extern |
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# define EGLAPI_BUILD DGLES2_EXPORT |
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#elif(defined BUILD_GLES2) |
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# define GL_APICALL DGLES2_EXPORT |
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# define GL_APICALL_BUILD DGLES2_EXPORT |
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#else |
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# error "Only to be used with EGL or GLES!" |
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#endif |
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|
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// The actual standard headers. |
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#include "EGL/egl.h" |
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#include "GLES2/gl2.h" |
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#include "GLES2/gl2ext.h" |
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// For malloc |
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#ifdef __APPLE__ |
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# include <stdlib.h> |
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#else |
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# include <malloc.h> |
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#endif |
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// Debug location aids. |
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#ifdef _MSC_VER |
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# define __PRETTY_FUNCTION__ __FUNCSIG__ |
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# ifdef _DEBUG |
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# define CONFIG_DEBUG 1 |
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# endif |
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#else |
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# if !defined(NDEBUG) |
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# define CONFIG_DEBUG 1 |
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# endif |
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#endif |
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#define COMMON_STAMP_FMT "%s:%d(%s)" |
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#define COMMON_STAMP_ARGS ,(strchr(__FILE__, '/')?"":__FILE__), __LINE__, __PRETTY_FUNCTION__ |
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#define DUMMY() \ |
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fprintf(stderr, "\x1b[41mDUMMY\x1b[0m " COMMON_STAMP_FMT ": Unimplemented!\n" COMMON_STAMP_ARGS) |
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#define STUB_ONCE(format, ...) \ |
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{ \ |
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static int once = 1; \ |
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if(once) \ |
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{ \ |
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fprintf(stderr, "\x1b[43mSTUB ONCE\x1b[0m " COMMON_STAMP_FMT ": " format COMMON_STAMP_ARGS, __VA_ARGS__); \ |
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106 |
once = 0; \ |
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107 |
} \ |
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108 |
} (void) 0 |
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109 |
#define STUB(format, ...) \ |
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fprintf(stderr, "STUB " COMMON_STAMP_FMT ": " format COMMON_STAMP_ARGS, __VA_ARGS__) |
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111 |
|
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112 |
#if(CONFIG_DEBUG == 1 && !defined NDEBUG) |
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113 |
# define Dprintf(format, ...) fprintf(stderr, "DEBUG " COMMON_STAMP_FMT ": " format COMMON_STAMP_ARGS, __VA_ARGS__) |
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114 |
#else // NDEBUG |
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# define Dprintf(format, ...) (void)0 |
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#endif // !NDEBUG |
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117 |
|
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#if(CONFIG_DEBUG == 1 && !defined NDEBUG) |
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# define DGLES2_ASSERT assert |
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#else |
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# define DGLES2_ASSERT |
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#endif |
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123 |
|
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124 |
// Context acquisition |
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125 |
#define DGLES2_NO_RETVAL ; |
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126 |
|
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127 |
#define DGLES2_ENTER_RET(retval) \ |
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128 |
DGLContext* ctx; \ |
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129 |
{ \ |
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130 |
dglGetLock(); \ |
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ctx = deglGetCurrentContext(); \ |
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132 |
if(!ctx) \ |
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133 |
{ \ |
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134 |
dglReleaseLock(); \ |
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135 |
return retval; \ |
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136 |
} \ |
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137 |
if(!ctx->initialized) \ |
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138 |
{ \ |
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139 |
if(!DGLContext_initialize(ctx)) \ |
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140 |
{ \ |
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141 |
dglReleaseLock(); \ |
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142 |
return retval; \ |
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143 |
} \ |
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144 |
} \ |
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145 |
} (void) 0 |
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146 |
|
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147 |
// Check the host error API function calls so that the error flag |
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148 |
// in the wrapper always contains the latest error. |
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149 |
#define DGLES2_LEAVE_RET(retval) \ |
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150 |
{ \ |
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151 |
DGLContext_getHostError(ctx); \ |
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152 |
dglReleaseLock(); \ |
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153 |
return retval; \ |
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154 |
} (void) 0 |
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155 |
|
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156 |
// Error checking is not necessary when DGLContext_getHostError was already |
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157 |
// called at the end of the function body. Also, the EGL<->GLES interface |
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158 |
// functions should preserve the error flag, so this macro should be used there. |
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159 |
#define DGLES2_LEAVE_NO_ERROR_CHECK_RET(retval) \ |
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160 |
{ \ |
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161 |
dglReleaseLock(); \ |
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162 |
return retval; \ |
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163 |
} (void) 0 |
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164 |
|
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165 |
#define DGLES2_ENTER() DGLES2_ENTER_RET(DGLES2_NO_RETVAL) |
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166 |
#define DGLES2_LEAVE() DGLES2_LEAVE_RET(DGLES2_NO_RETVAL) |
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167 |
#define DGLES2_LEAVE_NO_ERROR_CHECK() DGLES2_LEAVE_NO_ERROR_CHECK_RET(DGLES2_NO_RETVAL) |
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168 |
|
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169 |
// Surface locking |
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170 |
#define DGLES2_LOCK_SURFACE_RET(read, draw, retval) \ |
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171 |
do \ |
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172 |
{ \ |
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173 |
if(!deglLockSurface(read, draw)) \ |
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174 |
{ \ |
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175 |
DGLES2_LEAVE_NO_ERROR_CHECK_RET(retval); \ |
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176 |
} \ |
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177 |
} while(0) |
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178 |
|
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179 |
#define DGLES2_LOCK_DRAW_SURFACE_RET(retval) DGLES2_LOCK_SURFACE_RET(0, 1, retval) |
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180 |
#define DGLES2_LOCK_READ_SURFACE_RET(retval) DGLES2_LOCK_SURFACE_RET(1, 0, retval) |
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181 |
|
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182 |
#define DGLES2_UNLOCK_SURFACE_RET(retval) \ |
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183 |
do \ |
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184 |
{ \ |
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185 |
if(!deglUnlockSurface()) \ |
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186 |
{ \ |
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187 |
DGLES2_LEAVE_RET(retval); \ |
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188 |
} \ |
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189 |
} while(0) |
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190 |
|
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191 |
#define DGLES2_UNLOCK_SURFACE() DGLES2_UNLOCK_SURFACE_RET(DGLES2_NO_RETVAL) |
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192 |
|
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193 |
#define DGLES2_BEGIN_DRAWING_RET(retval) \ |
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194 |
do \ |
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195 |
{ \ |
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196 |
if(ctx->framebuffer_binding == 0) \ |
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197 |
{ \ |
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198 |
/* Using default framebuffer. */ \ |
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199 |
DGLES2_LOCK_DRAW_SURFACE_RET(retval); \ |
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200 |
} \ |
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201 |
} while(0) |
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202 |
|
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203 |
#define DGLES2_BEGIN_DRAWING() DGLES2_BEGIN_DRAWING_RET(DGLES2_NO_RETVAL) |
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204 |
|
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205 |
#define DGLES2_END_DRAWING_RET(retval) \ |
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206 |
do \ |
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207 |
{ \ |
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208 |
if(ctx->framebuffer_binding == 0) \ |
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209 |
{ \ |
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/* Using default framebuffer. */ \ |
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DGLES2_UNLOCK_SURFACE_RET(retval); \ |
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} \ |
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else \ |
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{ \ |
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/* Using user-created framebuffer. */ \ |
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DGLContext_updateFBOAttachmentSiblings(ctx); \ |
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} \ |
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} while(0) |
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#define DGLES2_END_DRAWING() DGLES2_END_DRAWING_RET(DGLES2_NO_RETVAL) |
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#define DGLES2_BEGIN_READING_RET(retval) \ |
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do \ |
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{ \ |
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if(ctx->framebuffer_binding == 0) \ |
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{ \ |
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/* Using default framebuffer. */ \ |
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DGLES2_LOCK_READ_SURFACE_RET(retval); \ |
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} \ |
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} while(0) |
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#define DGLES2_BEGIN_READING() DGLES2_BEGIN_READING_RET(DGLES2_NO_RETVAL) |
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#define DGLES2_END_READING_RET(retval) \ |
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do \ |
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{ \ |
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if(ctx->framebuffer_binding == 0) \ |
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{ \ |
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/* Using default framebuffer. */ \ |
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DGLES2_UNLOCK_SURFACE_RET(retval); \ |
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} \ |
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} while(0) |
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|
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#define DGLES2_END_READING() DGLES2_END_READING_RET(DGLES2_NO_RETVAL) |
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// GL error handling |
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#define DGLES2_ERROR_IF_RET(cond, error_, retval) \ |
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{ \ |
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if(cond) \ |
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{ \ |
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/* Clear the host GL error flag(s). */ \ |
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while(ctx->hgl.GetError() != GL_NO_ERROR); \ |
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DGLContext_setError(ctx, error_); \ |
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dglReleaseLock(); \ |
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return retval; \ |
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} \ |
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} (void) 0 |
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#define DGLES2_ERROR_IF(cond, error) DGLES2_ERROR_IF_RET(cond, error, DGLES2_NO_RETVAL) |
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#define DGLES2_ERROR_RET(error, retval) DGLES2_ERROR_IF_RET(1, error, retval) |
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#define DGLES2_ERROR(error) DGLES2_ERROR_IF(1, error) |
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#endif /* COMMON_H_ */ |