82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* 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
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* included 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,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* 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
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* SOFTWARE.
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*
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#pragma once
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#define _COGL_COMMON_SHADER_BOILERPLATE \
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"#define COGL_VERSION 100\n" \
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"\n" \
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"uniform mat4 cogl_modelview_matrix;\n" \
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"uniform mat4 cogl_modelview_projection_matrix;\n" \
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"uniform mat4 cogl_projection_matrix;\n"
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/* This declares all of the variables that we might need. This is
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* working on the assumption that the compiler will optimise them out
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* if they are not actually used. The GLSL spec at least implies that
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* this will happen for varyings but it doesn't explicitly so for
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* attributes */
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#define _COGL_VERTEX_SHADER_BOILERPLATE \
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_COGL_COMMON_SHADER_BOILERPLATE \
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"#define cogl_color_out _cogl_color\n" \
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"varying vec4 _cogl_color;\n" \
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"#define cogl_tex_coord_out _cogl_tex_coord\n" \
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"#define cogl_position_out gl_Position\n" \
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"#define cogl_point_size_out gl_PointSize\n" \
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"\n" \
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"attribute vec4 cogl_color_in;\n" \
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"attribute vec4 cogl_position_in;\n" \
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"#define cogl_tex_coord_in cogl_tex_coord0_in;\n" \
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"attribute vec3 cogl_normal_in;\n"
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#define _COGL_FRAGMENT_SHADER_BOILERPLATE \
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"#ifdef GL_ES\n" \
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"precision highp float;\n" \
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"#endif\n" \
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_COGL_COMMON_SHADER_BOILERPLATE \
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"\n" \
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"varying vec4 _cogl_color;\n" \
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"\n" \
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"#define cogl_color_in _cogl_color\n" \
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"#define cogl_tex_coord_in _cogl_tex_coord\n" \
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"\n" \
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"#define cogl_color_out gl_FragColor\n" \
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"#define cogl_depth_out gl_FragDepth\n" \
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"\n" \
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"#define cogl_front_facing gl_FrontFacing\n" \
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"\n" \
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"#define cogl_point_coord gl_PointCoord\n"
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#if 0
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/* GLSL 1.2 has a bottom left origin, though later versions
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* allow use of an origin_upper_left keyword which would be
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* more appropriate for Cogl. */
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"#define coglFragCoord gl_FragCoord\n"
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#endif
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