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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "graphics/opengl/debug.h"
#include "common/str.h"
#include "common/textconsole.h"
#include "graphics/opengl/system_headers.h"
#if defined(USE_OPENGL)
namespace OpenGL {
namespace {
Common::String getGLErrStr(GLenum error) {
switch (error) {
case GL_INVALID_ENUM:
return "GL_INVALID_ENUM";
case GL_INVALID_VALUE:
return "GL_INVALID_VALUE";
case GL_INVALID_OPERATION:
return "GL_INVALID_OPERATION";
// OpenGL ES 2.0 doesn't have GL_STACK_OVERFLOW and GL_STACK_UNDERFLOW
// see https://registry.khronos.org/OpenGL/api/GLES2/gl2.h and https://registry.khronos.org/OpenGL/api/GLES2/gl2ext.h
#ifdef USE_FORCED_GLES2
case GL_STACK_OVERFLOW_KHR:
return "GL_STACK_OVERFLOW_KHR";
case GL_STACK_UNDERFLOW_KHR:
return "GL_STACK_UNDERFLOW_KHR";
#else
case GL_STACK_OVERFLOW:
return "GL_STACK_OVERFLOW";
case GL_STACK_UNDERFLOW:
return "GL_STACK_UNDERFLOW";
#endif
case GL_OUT_OF_MEMORY:
return "GL_OUT_OF_MEMORY";
default:
break;
}
return Common::String::format("(Unknown GL error code 0x%X)", error);
}
} // End of anonymous namespace
void clearGLError() {
GLenum error;
while ((error = glGetError()) != GL_NO_ERROR)
;
}
bool checkGLError(const char *expr, const char *file, int line) {
bool ret = false;
GLenum error;
while ((error = glGetError()) != GL_NO_ERROR) {
// We cannot use error here because we do not know whether we have a
// working screen or not.
warning("GL ERROR: %s on %s (%s:%d)", getGLErrStr(error).c_str(), expr, file, line);
ret = true;
}
return ret;
}
} // End of namespace OpenGL
#endif
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