diff options
Diffstat (limited to 'opengl/libs/GLES_trace/src/gltrace_context.cpp')
| -rw-r--r-- | opengl/libs/GLES_trace/src/gltrace_context.cpp | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/opengl/libs/GLES_trace/src/gltrace_context.cpp b/opengl/libs/GLES_trace/src/gltrace_context.cpp index 8cf5a51..e0dd5f4 100644 --- a/opengl/libs/GLES_trace/src/gltrace_context.cpp +++ b/opengl/libs/GLES_trace/src/gltrace_context.cpp @@ -82,19 +82,33 @@ void GLTraceContext::resizeFBMemory(unsigned minSize) { /** obtain a pointer to the compressed framebuffer image */ void GLTraceContext::getCompressedFB(void **fb, unsigned *fbsize, unsigned *fbwidth, - unsigned *fbheight) { + unsigned *fbheight, FBBinding fbToRead) { int viewport[4] = {}; hooks->gl.glGetIntegerv(GL_VIEWPORT, viewport); unsigned fbContentsSize = viewport[2] * viewport[3] * 4; resizeFBMemory(fbContentsSize); - //TODO: On eglSwapBuffer, read FB0. For glDraw calls, read currently - // bound FB. - //hooks->gl.glGetIntegerv(GL_FRAMEBUFFER_BINDING, &bound_fb); - //hooks->gl.glBindFramebuffer(GL_FRAMEBUFFER, 0); + // switch current framebuffer binding if necessary + GLint currentFb = -1; + bool fbSwitched = false; + if (fbToRead != CURRENTLY_BOUND_FB) { + hooks->gl.glGetIntegerv(GL_FRAMEBUFFER_BINDING, ¤tFb); + + if (currentFb != 0) { + hooks->gl.glBindFramebuffer(GL_FRAMEBUFFER, 0); + fbSwitched = true; + } + } + hooks->gl.glReadPixels(viewport[0], viewport[1], viewport[2], viewport[3], GL_RGBA, GL_UNSIGNED_BYTE, fbcontents); + + // switch back to previously bound buffer if necessary + if (fbSwitched) { + hooks->gl.glBindFramebuffer(GL_FRAMEBUFFER, currentFb); + } + *fbsize = lzf_compress(fbcontents, fbContentsSize, fbcompressed, fbContentsSize); *fb = fbcompressed; *fbwidth = viewport[2]; |