diff options
| -rw-r--r-- | src/mesa/drivers/windows/gdi/wmesa.c | 95 |
1 files changed, 78 insertions, 17 deletions
diff --git a/src/mesa/drivers/windows/gdi/wmesa.c b/src/mesa/drivers/windows/gdi/wmesa.c index ea3f1780d3..7e8a87921b 100644 --- a/src/mesa/drivers/windows/gdi/wmesa.c +++ b/src/mesa/drivers/windows/gdi/wmesa.c @@ -458,23 +458,84 @@ static void write_rgba_span_front(const GLcontext *ctx, const GLubyte rgba[][4], const GLubyte mask[] ) { - WMesaContext pwc = wmesa_context(ctx); - GLuint i; - - (void) ctx; - y=FLIP(y); - if (mask) { - for (i=0; i<n; i++) - if (mask[i]) - SetPixel(pwc->hDC, x+i, y, RGB(rgba[i][RCOMP], rgba[i][GCOMP], - rgba[i][BCOMP])); - } - else { - for (i=0; i<n; i++) - SetPixel(pwc->hDC, x+i, y, RGB(rgba[i][RCOMP], rgba[i][GCOMP], - rgba[i][BCOMP])); - } - + WMesaContext pwc = wmesa_context(ctx); + WMesaFramebuffer pwfb = wmesa_lookup_framebuffer(pwc->hDC); + CONST BITMAPINFO bmi= + { + { + sizeof(BITMAPINFOHEADER), + n, 1, 1, 32, BI_RGB, 0, 1, 1, 0, 0 + } + }; + HBITMAP bmp=0; + HDC mdc=0; + typedef union + { + unsigned i; + struct { + unsigned b:8, g:8, r:8, a:8; + }; + } BGRA; + BGRA *bgra, c; + int i; + + if (n < 16) { // the value 16 is just guessed + y=FLIP(y); + if (mask) { + for (i=0; i<n; i++) + if (mask[i]) + SetPixel(pwc->hDC, x+i, y, + RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP])); + } + else { + for (i=0; i<n; i++) + SetPixel(pwc->hDC, x+i, y, + RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP])); + } + } + else { + if (!pwfb) { + _mesa_problem(NULL, "wmesa: write_rgba_span_front on unknown hdc"); + return; + } + bgra=malloc(n*sizeof(BGRA)); + if (!bgra) { + _mesa_problem(NULL, "wmesa: write_rgba_span_front: out of memory"); + return; + } + c.a=0; + if (mask) { + for (i=0; i<n; i++) { + if (mask[i]) { + c.r=rgba[i][RCOMP]; + c.g=rgba[i][GCOMP]; + c.b=rgba[i][BCOMP]; + c.a=rgba[i][ACOMP]; + bgra[i]=c; + } + else + bgra[i].i=0; + } + } + else { + for (i=0; i<n; i++) { + c.r=rgba[i][RCOMP]; + c.g=rgba[i][GCOMP]; + c.b=rgba[i][BCOMP]; + c.a=rgba[i][ACOMP]; + bgra[i]=c; + } + } + bmp=CreateBitmap(n, 1, 1, 32, bgra); + mdc=CreateCompatibleDC(pwfb->hDC); + SelectObject(mdc, bmp); + y=FLIP(y); + BitBlt(pwfb->hDC, x, y, n, 1, mdc, 0, 0, SRCCOPY); + SelectObject(mdc, 0); + DeleteObject(bmp); + DeleteDC(mdc); + free(bgra); + } } /* Write a horizontal span of RGB color pixels with a boolean mask. */ |