68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
#define GL_GLEXT_PROTOTYPES
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#include <GL/gl.h>
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#include "main.h"
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#define NULL ((void*)0)
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void destroy_shader( unsigned int shader )
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{
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return glDeleteProgram( shader );
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}
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unsigned int create_shader( void )
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{
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return glCreateProgram();
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}
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void use_shader( unsigned int program )
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{
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return glUseProgram( program );
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}
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unsigned char gload_program( unsigned int program, const char * src,
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unsigned int i )
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{
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int shader, status;
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unsigned int type[] =
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{
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[VERTEX]=GL_VERTEX_SHADER,
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[FRAGMENT]=GL_FRAGMENT_SHADER
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};
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if( !src )
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return 0;
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shader = glCreateShader(type[i]);
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glShaderSource( shader, 1, (const GLchar **)&src, NULL);
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glCompileShader(shader);
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glGetShaderiv( shader, GL_COMPILE_STATUS, &status );
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if( !status )
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{
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#ifdef DEBUG
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char log[256];
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glGetShaderInfoLog( shader, 256, NULL, log );
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#endif
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return 0;
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}
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glAttachShader(program, shader);
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glDeleteShader(shader);
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glLinkProgram(program);
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return 1;
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}
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void gload_float( unsigned int program, char * var, float f )
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{
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glUseProgram( program );
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glUniform1f( glGetUniformLocation( program, var ), f );
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}
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void gload_mat4( unsigned int program, char * var, float * mat )
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{
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glUseProgram( program );
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glUniformMatrix4fv( glGetUniformLocation( program, var ), 1, 0, mat );
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}
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