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ref_gl: request gl1.1 if compatibility profile unavailiable, this fixes launching with GL <= 2.0, improve old version extension detection

pull/2/head
mittorn 1 year ago committed by Alibek Omarov
parent
6041bb0a43
commit
35be80fc21
1 changed files with 12 additions and 4 deletions
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  1. 16
      ref/gl/gl_opengl.c

16
ref/gl/gl_opengl.c
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@ -750,10 +750,12 @@ void GL_InitExtensionsGLES( void ) @@ -750,10 +750,12 @@ void GL_InitExtensionsGLES( void )
GL_CheckExtension( "ES2 Shaders", shaderobjectsfuncs_gles, "gl_shaderobjects", extid, 2.0 );
break;
case GL_ARB_VERTEX_ARRAY_OBJECT_EXT:
GL_CheckExtension( "vertex_array_object", vaofuncs, "gl_vertex_array_object", extid, 0 );
if(!GL_CheckExtension( "GL_OES_vertex_array_object", vaofuncs, "gl_vertex_array_object", extid, 3.0 ))
!GL_CheckExtension( "GL_EXT_vertex_array_object", vaofuncs, "gl_vertex_array_object", extid, 3.0 );
break;
case GL_DRAW_RANGEELEMENTS_EXT:
GL_CheckExtension( "draw_range_elements", drawrangeelementsfuncs, "gl_drawrangeelements", extid, 0 );
if(!GL_CheckExtension( "GL_EXT_draw_range_elements", drawrangeelementsfuncs, "gl_drawrangeelements", extid, 3.0 ))
GL_CheckExtension( "GL_OES_draw_range_elements", drawrangeelementsfuncs, "gl_drawrangeelements", extid, 3.0 );
break;
case GL_DRAW_RANGE_ELEMENTS_BASE_VERTEX_EXT:
if( !GL_CheckExtension( "GL_OES_draw_elements_base_vertex", drawrangeelementsbasevertexfuncs, "gl_drawrangeelementsbasevertex", GL_DRAW_RANGE_ELEMENTS_BASE_VERTEX_EXT, 0 ) )
@ -884,7 +886,7 @@ void GL_InitExtensionsBigGL( void ) @@ -884,7 +886,7 @@ void GL_InitExtensionsBigGL( void )
GL_CheckExtension( "GL_ARB_texture_float", NULL, "gl_texture_float", GL_ARB_TEXTURE_FLOAT_EXT, 0 );
GL_CheckExtension( "GL_ARB_depth_buffer_float", NULL, "gl_texture_depth_float", GL_ARB_DEPTH_FLOAT_EXT, 0 );
GL_CheckExtension( "GL_EXT_gpu_shader4", NULL, NULL, GL_EXT_GPU_SHADER4, 0 ); // don't confuse users
GL_CheckExtension( "GL_ARB_vertex_buffer_object", vbofuncs, "gl_vertex_buffer_object", GL_ARB_VERTEX_BUFFER_OBJECT_EXT, 3.0 );
GL_CheckExtension( "GL_ARB_vertex_buffer_object", vbofuncs, "gl_vertex_buffer_object", GL_ARB_VERTEX_BUFFER_OBJECT_EXT, 2.0 );
GL_CheckExtension( "GL_ARB_texture_multisample", multisampletexfuncs, "gl_texture_multisample", GL_TEXTURE_MULTISAMPLE, 0 );
GL_CheckExtension( "GL_ARB_texture_compression_bptc", NULL, "gl_texture_bptc_compression", GL_ARB_TEXTURE_COMPRESSION_BPTC, 0 );
#ifndef XASH_GL_STATIC
@ -1287,7 +1289,13 @@ void GL_SetupAttributes( int safegl ) @@ -1287,7 +1289,13 @@ void GL_SetupAttributes( int safegl )
}
else
{
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_PROFILE_MASK, REF_GL_CONTEXT_PROFILE_COMPATIBILITY );
if( !safegl )
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_PROFILE_MASK, REF_GL_CONTEXT_PROFILE_COMPATIBILITY );
else
{
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MAJOR_VERSION, 1 );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MINOR_VERSION, 1 );
}
}
#endif // XASH_GLES

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