/**
* Draw quad with texcoords and optional color.
- * Coords are window coords with y=0=bottom.
+ * Coords are gallium window coords with y=0=top.
* \param color may be null
* \param invertTex if true, flip texcoords vertically
*/
pipe->set_fragment_sampler_textures(pipe, 1, &pt);
}
- /* Compute window coords (y=0=bottom) with pixel zoom.
+ /* Compute Gallium window coords (y=0=top) with pixel zoom.
* Recall that these coords are transformed by the current
* vertex shader and viewport transformation.
*/
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
+ y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY);
+ invertTex = !invertTex;
+ }
+
x0 = (GLfloat) x;
x1 = x + width * ctx->Pixel.ZoomX;
y0 = (GLfloat) y;
GLfloat *color;
enum pipe_format srcFormat, texFormat;
int ptw, pth;
+ GLboolean invertTex = GL_FALSE;
pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
}
}
- if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
- srcy = ctx->DrawBuffer->Height - srcy - height;
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ srcy = ctx->ReadBuffer->Height - srcy - height;
if (srcy < 0) {
height -= -srcy;
if (height < 0)
return;
+
+ invertTex = !invertTex;
}
/* Need to use POT texture? */
if (!pt)
return;
-
+ /* Make temporary texture which is a copy of the src region.
+ * We'll draw a quad with this texture to draw the dest image.
+ */
if (srcFormat == texFormat) {
/* copy source framebuffer surface into mipmap/texture */
struct pipe_surface *psRead = screen->get_tex_surface(screen,
psRead,
srcx, srcy, width, height);
}
+
+ if (0) {
+ /* debug */
+ debug_dump_surface("copypixsrcsurf", psRead);
+ debug_dump_surface("copypixtemptex", psTex);
+ }
+
pipe_surface_reference(&psRead, NULL);
pipe_surface_reference(&psTex, NULL);
}
pt,
driver_vp,
driver_fp,
- color, GL_TRUE);
+ color, invertTex);
pipe_texture_reference(&pt, NULL);
}