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https://github.com/outbackdingo/UltraGrid.git
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d6523202af
* this is only used for macOS so use built-in defines instead * the version is still used for some feature check in configure itself
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
#ifndef _GL_CONTEXT_H_
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#define _GL_CONTEXT_H_
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#include "config_win32.h"
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#include "config_unix.h"
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#endif // HAVE_CONFIG_H
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#if defined HAVE_LINUX || defined WIN32
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#include <GL/glew.h>
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#else
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#include <OpenGL/GL.h>
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#endif /* HAVE_LINUX */
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#ifdef HAVE_MACOSX
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#include <Availability.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#if defined HAVE_MACOSX && ! defined__MAC_10_11
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#define glGenFramebuffers glGenFramebuffersEXT
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#define glBindFramebuffer glBindFramebufferEXT
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#define GL_FRAMEBUFFER GL_FRAMEBUFFER_EXT
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#define glFramebufferTexture2D glFramebufferTexture2DEXT
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#define glDeleteFramebuffers glDeleteFramebuffersEXT
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#define GL_FRAMEBUFFER_COMPLETE GL_FRAMEBUFFER_COMPLETE_EXT
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#define glCheckFramebufferStatus glCheckFramebufferStatusEXT
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#endif
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struct gl_context {
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int legacy:1;
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void *context;
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int gl_major;
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int gl_minor;
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};
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#define GL_CONTEXT_ANY 0x00
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#define GL_CONTEXT_LEGACY 0x01
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/**
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* @param which GL_CONTEXT_ANY or GL_CONTEXT_LEGACY
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*/
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bool init_gl_context(struct gl_context *context, int which);
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void gl_context_make_current(struct gl_context *context);
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void destroy_gl_context(struct gl_context *context);
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static void gl_check_error(void) __attribute__((unused));
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static void gl_check_error()
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{
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GLenum msg;
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msg=glGetError();
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int flag = 1;
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switch(msg){
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case GL_NO_ERROR:
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flag = 0;
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//printf("No error\n");
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break;
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case GL_INVALID_ENUM:
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fprintf(stderr, "GL_INVALID_ENUM\n");
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break;
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case GL_INVALID_VALUE:
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fprintf(stderr, "GL_INVALID_VALUE\n");
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break;
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case GL_INVALID_OPERATION:
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fprintf(stderr, "GL_INVALID_OPERATION\n");
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break;
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case GL_STACK_OVERFLOW:
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fprintf(stderr, "GL_STACK_OVERFLOW\n");
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break;
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case GL_STACK_UNDERFLOW:
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fprintf(stderr, "GL_STACK_UNDERFLOW\n");
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break;
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case GL_OUT_OF_MEMORY:
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fprintf(stderr, "GL_OUT_OF_MEMORY\n");
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break;
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case 1286:
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fprintf(stderr, "INVALID_FRAMEBUFFER_OPERATION_EXT\n");
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break;
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default:
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fprintf(stderr, "wft mate? Unknown GL ERROR: %d\n", msg);
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break;
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}
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if(flag)
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abort();
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}
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GLuint glsl_compile_link(const char *vprogram, const char *fprogram);
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif /* _GL_CONTEXT_H_ */
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