diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_pixel_draw.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_pixel_draw.c b/src/mesa/drivers/dri/intel/intel_pixel_draw.c index d79d625f77..ddcc661e00 100644 --- a/src/mesa/drivers/dri/intel/intel_pixel_draw.c +++ b/src/mesa/drivers/dri/intel/intel_pixel_draw.c @@ -211,8 +211,9 @@ intel_stencil_drawpixels(GLcontext * ctx, struct gl_renderbuffer *rb; struct gl_pixelstore_attrib old_unpack; GLstencil *stencil_pixels; - int row; + int row, y1, y2; GLint old_active_texture; + GLboolean rendering_to_fbo = ctx->DrawBuffer->Name != 0; if (format != GL_STENCIL_INDEX) return GL_FALSE; @@ -348,14 +349,25 @@ intel_stencil_drawpixels(GLcontext * ctx, _mesa_free(stencil_pixels); intel_meta_set_passthrough_transform(intel); + + /* Since we're rendering to the framebuffer as if it was an FBO, + * if it's the window system we have to flip the coordinates. + */ + if (rendering_to_fbo) { + y1 = y; + y2 = y + height * ctx->Pixel.ZoomY; + } else { + y1 = irb->Base.Height - (y + height * ctx->Pixel.ZoomY); + y2 = irb->Base.Height - y; + } vertices[0][0] = x; - vertices[0][1] = y; + vertices[0][1] = y1; vertices[1][0] = x + width * ctx->Pixel.ZoomX; - vertices[1][1] = y; + vertices[1][1] = y1; vertices[2][0] = x + width * ctx->Pixel.ZoomX; - vertices[2][1] = y + height * ctx->Pixel.ZoomY; + vertices[2][1] = y2; vertices[3][0] = x; - vertices[3][1] = y + height * ctx->Pixel.ZoomY; + vertices[3][1] = y2; _mesa_VertexPointer(2, GL_FLOAT, 2 * sizeof(GLfloat), &vertices); _mesa_Enable(GL_VERTEX_ARRAY); |