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[Android] Support grabbing OpenGL extensions and a function for checking for support.

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This commit is contained in:
Ryan Houdek
2013-12-28 01:04:52 -06:00
parent e04edd89cc
commit d8b7f4d73f
3 changed files with 27 additions and 1 deletions
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22
Source/Core/VideoBackends/OGL/Src/GLFunctions.cpp
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@ -5,7 +5,9 @@
#include "DriverDetails.h"
#include "GLFunctions.h"
#include "Log.h"
#include <dlfcn.h>
#include <unordered_map>
#ifdef USE_GLES3
PFNGLMAPBUFFERRANGEPROC glMapBufferRange;
@ -13,6 +15,7 @@ PFNGLUNMAPBUFFERPROC glUnmapBuffer;
PFNGLBINDBUFFERRANGEPROC glBindBufferRange;
PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
PFNGLGETSTRINGIPROC glGetStringi;
PFNGLGENVERTEXARRAYSPROC glGenVertexArrays;
PFNGLDELETEVERTEXARRAYSPROC glDeleteVertexArrays;
@ -49,6 +52,8 @@ PFNGLGENQUERIESPROC glGenQueries;
namespace GLFunc
{
void *self;
std::unordered_map<std::string, bool> _extensions;
void LoadFunction(const char *name, void **func)
{
#ifdef USE_GLES3
@ -67,10 +72,27 @@ namespace GLFunc
#endif
}
bool SupportsExt(std::string ext)
{
return _extensions.find(ext) != _extensions.end();
}
void InitExtensions()
{
GLint NumExtension = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &NumExtension);
for (GLint i = 0; i < NumExtension; ++i)
_extensions[std::string((const char*)glGetStringi(GL_EXTENSIONS, i))] = true;
}
void Init()
{
self = dlopen(NULL, RTLD_LAZY);
LoadFunction("glGetStringi", (void**)&glGetStringi);
InitExtensions();
LoadFunction("glUnmapBuffer", (void**)&glUnmapBuffer);
LoadFunction("glBeginQuery", (void**)&glBeginQuery);
LoadFunction("glEndQuery", (void**)&glEndQuery);