diff options
| -rw-r--r-- | src/mesa/state_tracker/st_cb_drawpixels.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c index 98453321f86..5278309e32d 100644 --- a/src/mesa/state_tracker/st_cb_drawpixels.c +++ b/src/mesa/state_tracker/st_cb_drawpixels.c @@ -405,7 +405,7 @@ make_texture(struct st_context *st, /** * 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 */ @@ -592,10 +592,15 @@ draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, 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; |