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dbe9763af3
Modern OpenGL implementations emit > "0:4(15): error: A shader cannot redefine built-in function `round' > in GLSL ES 1.00" This commit uses a ROUND macro instead, which should not trigger this error.
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
/* ResidualVM - A 3D game interpreter
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*
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* ResidualVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/scummsys.h"
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#if defined(USE_GLES2) || defined(USE_OPENGL_SHADERS)
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namespace OpenGL {
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namespace BuiltinShaders {
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const char *compatVertex =
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"#if defined(GL_ES)\n"
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"#define ROUND(x) (sign(x) * floor(abs(x) + .5))\n"
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"#define in attribute\n"
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"#define out varying\n"
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"#elif __VERSION__ < 130\n"
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"#define ROUND(x) (sign(x) * floor(abs(x) + .5))\n"
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"#define highp\n"
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"#define in attribute\n"
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"#define out varying\n"
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"#else\n"
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"#define ROUND(x) round(x)\n"
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"#endif\n";
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const char *compatFragment =
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"#if defined(GL_ES)\n"
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"#define in varying\n"
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"#ifdef GL_FRAGMENT_PRECISION_HIGH\n"
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"precision highp float;\n"
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"#else\n"
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"precision mediump float;\n"
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"#endif\n"
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"#define OUTPUT\n"
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"#define outColor gl_FragColor\n"
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"#define texture texture2D\n"
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"#elif __VERSION__ < 130\n"
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"#define in varying\n"
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"#define OUTPUT\n"
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"#define outColor gl_FragColor\n"
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"#define texture texture2D\n"
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"#else\n"
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"#define OUTPUT out vec4 outColor;\n"
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"#endif\n";
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}
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} // End of namespace OpenGL
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#endif
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