GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* handle, int* width,
int* height, int* format, void** buffer)
{
void* mesaBuffer;
GLint mesaWidth, mesaHeight, mesaFormat;
_GLFWwindow* window = (_GLFWwindow*) handle;
assert(window != NULL);
_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
if (!OSMesaGetColorBuffer(window->context.osmesa.handle,
&mesaWidth, &mesaHeight,
&mesaFormat, &mesaBuffer))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"OSMesa: Failed to retrieve color buffer");
return GLFW_FALSE;
}
if (width)
*width = mesaWidth;
if (height)
*height = mesaHeight;
if (format)
*format = mesaFormat;
if (buffer)
*buffer = mesaBuffer;
return GLFW_TRUE;
}
SkMesaGLContext::AutoContextRestore::AutoContextRestore() {
fOldContext = (Context)OSMesaGetCurrentContext();
if (NULL != (OSMesaContext)fOldContext) {
OSMesaGetColorBuffer((OSMesaContext)fOldContext,
&fOldWidth, &fOldHeight,
&fOldFormat, &fOldImage);
}
}
void
Renderer3dImpl::get_buffers(int width, int height, void* rgb, void* depth) const
{
GLint tmp_width;
GLint tmp_height;
GLint tmp_format;
void* tmp;
if (rgb) {
OSMesaGetColorBuffer( ctx_, &tmp_width, &tmp_height, &tmp_format, &tmp );
std::memcpy(rgb, tmp, tmp_width*tmp_height*tmp_format);
}
if (depth) {
OSMesaGetDepthBuffer( ctx_, &tmp_width, &tmp_height, &tmp_format, &tmp );
std::memcpy(depth, tmp, tmp_width*tmp_height*tmp_format);
}
}
