thirdparty/scummvm
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GRAPHICS: Only manually pull pointers if USE_GLEW not defined

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This commit is contained in:
Dries Harnie 2015-05-06 11:24:42 +08:00
parent 9e1b0f1516
commit 5c813a8b64
3 changed files with 10 additions and 4 deletions
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4
engines/grim/gfx_opengl.cpp
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@ -52,7 +52,7 @@
#include "engines/grim/registry.h"
#if defined (SDL_BACKEND) && defined(GL_ARB_fragment_program)
#if defined (SDL_BACKEND) && defined(GL_ARB_fragment_program) && !defined(USE_GLEW)
// We need SDL.h for SDL_GL_GetProcAddress.
#include "backends/platform/sdl/sdl-sys.h"
@ -177,6 +177,7 @@ void GfxOpenGL::initExtensions() {
}
#if defined (SDL_BACKEND) && defined(GL_ARB_fragment_program)
#ifndef USE_GLEW
union {
void *obj_ptr;
void (APIENTRY *func_ptr)();
@ -194,6 +195,7 @@ void GfxOpenGL::initExtensions() {
glDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC)u.func_ptr;
u.obj_ptr = SDL_GL_GetProcAddress("glProgramLocalParameter4fARB");
glProgramLocalParameter4fARB = (PFNGLPROGRAMLOCALPARAMETER4FARBPROC)u.func_ptr;
#endif
const char *extensions = (const char *)glGetString(GL_EXTENSIONS);
if (strstr(extensions, "ARB_fragment_program")) {

4
engines/grim/gfx_opengl.h
View file

@ -27,7 +27,9 @@
#ifdef USE_OPENGL
#if defined (SDL_BACKEND) && !defined(__amigaos4__)
#ifdef USE_GLEW
#include <GL/glew.h>
#elif defined (SDL_BACKEND) && !defined(__amigaos4__)
#include <SDL_opengl.h>
#undef ARRAYSIZE
#else

6
graphics/opengles2/framebuffer.cpp
View file

@ -48,7 +48,7 @@
namespace Graphics {
#if defined(SDL_BACKEND) && !defined(USE_OPENGL_SHADERS)
#if defined(SDL_BACKEND) && !defined(USE_GLEW)
static bool framebuffer_object_functions = false;
static PFNGLBINDFRAMEBUFFEREXTPROC glBindFramebuffer;
static PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbuffer;
@ -122,10 +122,12 @@ static bool usePackedBuffer() {
FrameBuffer::FrameBuffer(uint width, uint height) :
_managedTexture(true), _width(width), _height(height),
_texWidth(nextHigher2(width)), _texHeight(nextHigher2(height)) {
#if defined(SDL_BACKEND) && !defined(USE_OPENGL_SHADERS)
#ifdef SDL_BACKEND
if (!Graphics::isExtensionSupported("GL_EXT_framebuffer_object")) {
error("GL_EXT_framebuffer_object extension is not supported!");
}
#endif
#if defined(SDL_BACKEND) && !defined(USE_GLEW)
grabFramebufferObjectPointers();
#endif
glGenTextures(1, &_colorTexture);