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comparison src/video/SDL_video.c @ 5212:115fff0641ee

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Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS
author Sam Lantinga <slouken@libsdl.org>
date Sun, 06 Feb 2011 10:22:25 -0800
parents ef5a61ea3202
children 1be088cec098
comparison
equal deleted inserted replaced
5211:78db79f5a4e2 5212:115fff0641ee
28 #include "SDL_sysvideo.h" 28 #include "SDL_sysvideo.h"
29 #include "SDL_blit.h" 29 #include "SDL_blit.h"
30 #include "SDL_pixels_c.h" 30 #include "SDL_pixels_c.h"
31 #include "../events/SDL_events_c.h" 31 #include "../events/SDL_events_c.h"
32 32
33 #if SDL_VIDEO_OPENGL
34 #include "SDL_opengl.h"
35 #endif /* SDL_VIDEO_OPENGL */
36
33 #if SDL_VIDEO_OPENGL_ES 37 #if SDL_VIDEO_OPENGL_ES
34 #include "SDL_opengles.h" 38 #include "SDL_opengles.h"
35 #endif /* SDL_VIDEO_OPENGL_ES */ 39 #endif /* SDL_VIDEO_OPENGL_ES */
36 40
37 #if SDL_VIDEO_OPENGL 41 #if SDL_VIDEO_OPENGL_ES2
38 #include "SDL_opengl.h" 42 #include "SDL_opengles2.h"
39 #endif /* SDL_VIDEO_OPENGL */ 43 #endif /* SDL_VIDEO_OPENGL_ES2 */
40 44
41 #include "SDL_syswm.h" 45 #include "SDL_syswm.h"
42 46
43 /* On Windows, windows.h defines CreateWindow */ 47 /* On Windows, windows.h defines CreateWindow */
44 #ifdef CreateWindow 48 #ifdef CreateWindow
479 _this->gl_config.stereo = 0; 483 _this->gl_config.stereo = 0;
480 _this->gl_config.multisamplebuffers = 0; 484 _this->gl_config.multisamplebuffers = 0;
481 _this->gl_config.multisamplesamples = 0; 485 _this->gl_config.multisamplesamples = 0;
482 _this->gl_config.retained_backing = 1; 486 _this->gl_config.retained_backing = 1;
483 _this->gl_config.accelerated = -1; /* accelerated or not, both are fine */ 487 _this->gl_config.accelerated = -1; /* accelerated or not, both are fine */
488 #if SDL_VIDEO_OPENGL
484 _this->gl_config.major_version = 2; 489 _this->gl_config.major_version = 2;
485 _this->gl_config.minor_version = 1; 490 _this->gl_config.minor_version = 1;
491 #elif SDL_VIDEO_OPENGL_ES2
492 _this->gl_config.major_version = 2;
493 _this->gl_config.minor_version = 0;
494 #elif SDL_VIDEO_OPENGL_ES
495 _this->gl_config.major_version = 1;
496 _this->gl_config.minor_version = 1;
497 #endif
486 498
487 /* Initialize the video subsystem */ 499 /* Initialize the video subsystem */
488 if (_this->VideoInit(_this) < 0) { 500 if (_this->VideoInit(_this) < 0) {
489 SDL_VideoQuit(); 501 SDL_VideoQuit();
490 return -1; 502 return -1;
1895 } 1907 }
1896 1908
1897 SDL_bool 1909 SDL_bool
1898 SDL_GL_ExtensionSupported(const char *extension) 1910 SDL_GL_ExtensionSupported(const char *extension)
1899 { 1911 {
1900 #if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES 1912 #if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
1901 const GLubyte *(APIENTRY * glGetStringFunc) (GLenum); 1913 const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
1902 const char *extensions; 1914 const char *extensions;
1903 const char *start; 1915 const char *start;
1904 const char *where, *terminator; 1916 const char *where, *terminator;
1905 1917
1949 } 1961 }
1950 1962
1951 int 1963 int
1952 SDL_GL_SetAttribute(SDL_GLattr attr, int value) 1964 SDL_GL_SetAttribute(SDL_GLattr attr, int value)
1953 { 1965 {
1954 #if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES 1966 #if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
1955 int retval; 1967 int retval;
1956 1968
1957 if (!_this) { 1969 if (!_this) {
1958 SDL_UninitializedVideo(); 1970 SDL_UninitializedVideo();
1959 return -1; 1971 return -1;
2030 } 2042 }
2031 2043
2032 int 2044 int
2033 SDL_GL_GetAttribute(SDL_GLattr attr, int *value) 2045 SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
2034 { 2046 {
2035 #if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES 2047 #if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
2036 void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params); 2048 void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
2037 GLenum(APIENTRY * glGetErrorFunc) (void); 2049 GLenum(APIENTRY * glGetErrorFunc) (void);
2038 GLenum attrib = 0; 2050 GLenum attrib = 0;
2039 GLenum error = 0; 2051 GLenum error = 0;
2040 2052
2066 break; 2078 break;
2067 case SDL_GL_ALPHA_SIZE: 2079 case SDL_GL_ALPHA_SIZE:
2068 attrib = GL_ALPHA_BITS; 2080 attrib = GL_ALPHA_BITS;
2069 break; 2081 break;
2070 case SDL_GL_DOUBLEBUFFER: 2082 case SDL_GL_DOUBLEBUFFER:
2071 #ifndef SDL_VIDEO_OPENGL_ES 2083 #if SDL_VIDEO_OPENGL
2072 attrib = GL_DOUBLEBUFFER; 2084 attrib = GL_DOUBLEBUFFER;
2073 break; 2085 break;
2074 #else 2086 #else
2075 /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER */ 2087 /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER */
2076 /* parameter which switches double buffer to single buffer. OpenGL ES */ 2088 /* parameter which switches double buffer to single buffer. OpenGL ES */
2082 attrib = GL_DEPTH_BITS; 2094 attrib = GL_DEPTH_BITS;
2083 break; 2095 break;
2084 case SDL_GL_STENCIL_SIZE: 2096 case SDL_GL_STENCIL_SIZE:
2085 attrib = GL_STENCIL_BITS; 2097 attrib = GL_STENCIL_BITS;
2086 break; 2098 break;
2087 #ifndef SDL_VIDEO_OPENGL_ES 2099 #if SDL_VIDEO_OPENGL
2088 case SDL_GL_ACCUM_RED_SIZE: 2100 case SDL_GL_ACCUM_RED_SIZE:
2089 attrib = GL_ACCUM_RED_BITS; 2101 attrib = GL_ACCUM_RED_BITS;
2090 break; 2102 break;
2091 case SDL_GL_ACCUM_GREEN_SIZE: 2103 case SDL_GL_ACCUM_GREEN_SIZE:
2092 attrib = GL_ACCUM_GREEN_BITS; 2104 attrib = GL_ACCUM_GREEN_BITS;
2109 /* none of these are supported in OpenGL ES */ 2121 /* none of these are supported in OpenGL ES */
2110 *value = 0; 2122 *value = 0;
2111 return 0; 2123 return 0;
2112 #endif 2124 #endif
2113 case SDL_GL_MULTISAMPLEBUFFERS: 2125 case SDL_GL_MULTISAMPLEBUFFERS:
2114 #ifndef SDL_VIDEO_OPENGL_ES 2126 #if SDL_VIDEO_OPENGL
2115 attrib = GL_SAMPLE_BUFFERS_ARB; 2127 attrib = GL_SAMPLE_BUFFERS_ARB;
2116 #else 2128 #else
2117 attrib = GL_SAMPLE_BUFFERS; 2129 attrib = GL_SAMPLE_BUFFERS;
2118 #endif 2130 #endif
2119 break; 2131 break;
2120 case SDL_GL_MULTISAMPLESAMPLES: 2132 case SDL_GL_MULTISAMPLESAMPLES:
2121 #ifndef SDL_VIDEO_OPENGL_ES 2133 #if SDL_VIDEO_OPENGL
2122 attrib = GL_SAMPLES_ARB; 2134 attrib = GL_SAMPLES_ARB;
2123 #else 2135 #else
2124 attrib = GL_SAMPLES; 2136 attrib = GL_SAMPLES;
2125 #endif 2137 #endif
2126 break; 2138 break;