skia2/include/utils/SkEGLContext.h
2010-12-21 16:26:39 +00:00

70 lines
1.5 KiB
C++

#include <AGL/agl.h>
class SkEGLContext {
public:
SkEGLContext();
~SkEGLContext();
bool init(int width, int height);
private:
AGLContext fAGLContext;
};
SkEGLContext::SkEGLContext() : fAGLContext(NULL) {
}
SkEGLContext::~SkEGLContext() {
if (fAGLContext) {
aglDestroyContext(fAGLContext);
}
}
bool SkEGLContext::init(int width, int height) {
GLint major, minor;
AGLContext ctx;
aglGetVersion(&major, &minor);
SkDebugf("---- agl version %d %d\n", major, minor);
const GLint pixelAttrs[] = {
AGL_RGBA,
AGL_STENCIL_SIZE, 8,
/*
AGL_SAMPLE_BUFFERS_ARB, 1,
AGL_MULTISAMPLE,
AGL_SAMPLES_ARB, 2,
*/
AGL_ACCELERATED,
AGL_NONE
};
AGLPixelFormat format = aglChoosePixelFormat(NULL, 0, pixelAttrs);
//AGLPixelFormat format = aglCreatePixelFormat(pixelAttrs);
SkDebugf("----- agl format %p\n", format);
ctx = aglCreateContext(format, NULL);
SkDebugf("----- agl context %p\n", ctx);
aglDestroyPixelFormat(format);
SkDebugf("---- sizeof aglcontext %d\n", sizeof(AGLContext));
/*
static const GLint interval = 1;
aglSetInteger(ctx, AGL_SWAP_INTERVAL, &interval);
*/
aglSetCurrentContext(ctx);
fAGLContext = ctx;
// Now create our FBO render target
GLuint fboID;
GLuint cbID;
glGenFramebuffersEXT(1, &fboID);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboID);
glGenRenderbuffers(1, &cbID);
glBindRenderbuffer(GL_RENDERBUFFER, cbID);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA, width, height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, cbID);
return true;
}