void
MesaSoftwareRenderer::_Error(gl_context* ctx)
{
MesaSoftwareRenderer* mr = (MesaSoftwareRenderer*)ctx->DriverCtx;
if (mr && mr->GLView())
mr->GLView()->ErrorCallback((unsigned long)ctx->ErrorValue);
}
void
MesaSoftwareRenderer::_Flush(GLcontext *ctx)
{
CALLED();
MesaSoftwareRenderer *mr = (MesaSoftwareRenderer *) ctx->DriverCtx;
if ((mr->fOptions & BGL_DOUBLE) == 0) {
mr->SwapBuffers();
}
}
void
MesaSoftwareRenderer::_Flush(gl_context* ctx)
{
CALLED();
MesaSoftwareRenderer* mr = (MesaSoftwareRenderer*)ctx->DriverCtx;
if ((mr->fOptions & BGL_DOUBLE) == 0) {
// TODO: SwapBuffers() can call _CopyToDirect(), which should
// be always called with with the BGLView drawlocked.
// This is not always the case if called from here.
mr->SwapBuffers();
}
}
void
MesaSoftwareRenderer::_ClearFront(gl_context* ctx)
{
CALLED();
MesaSoftwareRenderer* mr = (MesaSoftwareRenderer*)ctx->DriverCtx;
BGLView* bglview = mr->GLView();
assert(bglview);
BBitmap* bitmap = mr->fBitmap;
assert(bitmap);
GLuint* start = (GLuint*)bitmap->Bits();
size_t pixelSize = 0;
get_pixel_size_for(bitmap->ColorSpace(), &pixelSize, NULL, NULL);
const GLuint* clearPixelPtr = (const GLuint*)mr->fClearColor;
const GLuint clearPixel = B_LENDIAN_TO_HOST_INT32(*clearPixelPtr);
int x = ctx->DrawBuffer->_Xmin;
int y = ctx->DrawBuffer->_Ymin;
uint32 width = ctx->DrawBuffer->_Xmax - x;
uint32 height = ctx->DrawBuffer->_Ymax - y;
GLboolean all = (width == ctx->DrawBuffer->Width
&& height == ctx->DrawBuffer->Height);
if (all) {
const int numPixels = mr->fWidth * mr->fHeight;
if (clearPixel == 0) {
memset(start, 0, numPixels * pixelSize);
} else {
for (int i = 0; i < numPixels; i++) {
start[i] = clearPixel;
}
}
} else {
// XXX untested
start += y * mr->fWidth + x;
for (uint32 i = 0; i < height; i++) {
for (uint32 j = 0; j < width; j++) {
start[j] = clearPixel;
}
start += mr->fWidth;
}
}
}
