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support GL_ANGLE_base_vertex_base_instance

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Andrei Alexeyev 2020-02-15 20:58:15 +02:00
parent 7474ff3a25
commit f4a3207f61
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GPG key ID: 363707CD4C7FE8A4
1 changed files with 29 additions and 0 deletions
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29
src/renderer/glcommon/opengl.c
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@ -37,6 +37,24 @@ struct glext_s glext;
typedef void (*glad_glproc_ptr)(void);
#ifndef STATIC_GLES3
//
// Extension not yet handled by glad
//
// GL_ANGLE_base_vertex_base_instance
typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEANGLEPROC)(GLenum mode, GLint first, GLsizei count, GLsizei instanceCount, GLuint baseInstance);
static PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEANGLEPROC glad_glDrawArraysInstancedBaseInstanceANGLE;
typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEANGLEPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex, GLuint baseinstance);
static PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEANGLEPROC glad_glDrawElementsInstancedBaseVertexBaseInstanceANGLE;
static void glad_glDrawElementsInstancedBaseInstanceANGLE(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLuint baseinstance) {
// shim
glad_glDrawElementsInstancedBaseVertexBaseInstanceANGLE(mode, count, type, indices, instancecount, 0, baseinstance);
}
#endif
static const char *const ext_vendor_table[] = {
#define TSGL_EXT_VENDOR(v) [_TSGL_EXTVNUM_##v] = #v,
TSGL_EXT_VENDORS
@ -186,6 +204,14 @@ static void glcommon_ext_base_instance(void) {
log_info("Using GL_EXT_base_instance");
return;
}
if((glext.base_instance = glcommon_check_extension("GL_ANGLE_base_vertex_base_instance"))
&& (glext.DrawArraysInstancedBaseInstance = GL_FUNC(DrawArraysInstancedBaseInstanceANGLE))
&& (glext.DrawElementsInstancedBaseInstance = GL_FUNC(DrawElementsInstancedBaseInstanceANGLE))
) {
log_info("Using GL_ANGLE_base_vertex_base_instance");
return;
}
#endif
glext.base_instance = 0;
@ -800,6 +826,9 @@ void glcommon_load_functions(void) {
log_fatal("Failed to load OpenGL functions");
}
}
glad_glDrawArraysInstancedBaseInstanceANGLE = (PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEANGLEPROC)SDL_GL_GetProcAddress("glDrawArraysInstancedBaseInstanceANGLE");
glad_glDrawElementsInstancedBaseVertexBaseInstanceANGLE = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEANGLEPROC)SDL_GL_GetProcAddress("glDrawElementsInstancedBaseVertexBaseInstanceANGLE");
#endif
}