{
raster->front_ccw = (ctx->Polygon.FrontFace == GL_CCW);
- /* XXX
- * I think the intention here is that user-created framebuffer objects
- * use Y=0=TOP layout instead of OpenGL's normal Y=0=bottom layout.
- * Flipping Y changes CW to CCW and vice-versa.
- * But this is an implementation/driver-specific artifact - remove...
+ /*
+ * Gallium's surfaces are Y=0=TOP orientation. OpenGL is the
+ * opposite. Window system surfaces are Y=0=TOP. Mesa's FBOs
+ * must match OpenGL conventions so FBOs use Y=0=BOTTOM. In that
+ * case, we must invert Y and flip the notion of front vs. back.
*/
- if (ctx->DrawBuffer && ctx->DrawBuffer->Name != 0)
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
+ /* Drawing to an FBO. The viewport will be inverted. */
raster->front_ccw ^= 1;
+ }
}
/* _NEW_LIGHT
raster->light_twoside = 1;
}
+ raster->clamp_vertex_color = ctx->Light._ClampVertexColor;
+
/* _NEW_POLYGON
*/
if (ctx->Polygon.CullFlag) {
if (ctx->Scissor.Enabled)
raster->scissor = 1;
+ /* _NEW_FRAG_CLAMP */
+ raster->clamp_fragment_color = ctx->Color._ClampFragmentColor;
+
raster->gl_rasterization_rules = 1;
cso_set_rasterizer(st->cso_context, raster);
_NEW_POINT |
_NEW_POLYGON |
_NEW_PROGRAM |
- _NEW_SCISSOR), /* mesa state dependencies*/
+ _NEW_SCISSOR |
+ _NEW_FRAG_CLAMP), /* mesa state dependencies*/
ST_NEW_VERTEX_PROGRAM, /* state tracker dependencies */
},
update_raster_state /* update function */