1 #include "SkEGLContext.h"
2 //#include "SkTypes.h"
3 #include <AGL/agl.h>
4
SkEGLContext()5 SkEGLContext::SkEGLContext() : context(NULL) {
6 }
7
~SkEGLContext()8 SkEGLContext::~SkEGLContext() {
9 if (this->context) {
10 aglDestroyContext(this->context);
11 }
12 }
13
init(int width,int height)14 bool SkEGLContext::init(int width, int height) {
15 GLint major, minor;
16 AGLContext ctx;
17
18 aglGetVersion(&major, &minor);
19 //SkDebugf("---- agl version %d %d\n", major, minor);
20
21 const GLint pixelAttrs[] = {
22 AGL_RGBA,
23 AGL_STENCIL_SIZE, 8,
24 /*
25 AGL_SAMPLE_BUFFERS_ARB, 1,
26 AGL_MULTISAMPLE,
27 AGL_SAMPLES_ARB, 2,
28 */
29 AGL_ACCELERATED,
30 AGL_NONE
31 };
32 AGLPixelFormat format = aglChoosePixelFormat(NULL, 0, pixelAttrs);
33 //AGLPixelFormat format = aglCreatePixelFormat(pixelAttrs);
34 //SkDebugf("----- agl format %p\n", format);
35 ctx = aglCreateContext(format, NULL);
36 //SkDebugf("----- agl context %p\n", ctx);
37 aglDestroyPixelFormat(format);
38
39 /*
40 static const GLint interval = 1;
41 aglSetInteger(ctx, AGL_SWAP_INTERVAL, &interval);
42 */
43
44 aglSetCurrentContext(ctx);
45 this->context = ctx;
46
47 // Now create our FBO render target
48
49 GLuint fboID;
50 GLuint cbID;
51 GLuint dsID;
52 glGenFramebuffersEXT(1, &fboID);
53 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboID);
54 glGenRenderbuffers(1, &cbID);
55 glBindRenderbuffer(GL_RENDERBUFFER, cbID);
56 glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA, width, height);
57 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, cbID);
58 glGenRenderbuffers(1, &dsID);
59 glBindRenderbuffer(GL_RENDERBUFFER, dsID);
60 glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_STENCIL, width, height);
61 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, dsID);
62 glViewport(0, 0, width, height);
63 glClearStencil(0);
64 glClear(GL_STENCIL_BUFFER_BIT);
65
66 GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
67 return GL_FRAMEBUFFER_COMPLETE == status;
68 }
69