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-rw-r--r--src/mesa/drivers/dri/i965/brw_defines.h1
-rw-r--r--src/mesa/drivers/dri/i965/gen6_sf_state.c13
-rw-r--r--src/mesa/drivers/dri/i965/gen7_sf_state.c18
3 files changed, 27 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h
index 4d90a99442a..029be872d77 100644
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -1128,6 +1128,7 @@ enum brw_message_target {
/* DW1 (for gen6) */
# define GEN6_SF_NUM_OUTPUTS_SHIFT 22
# define GEN6_SF_SWIZZLE_ENABLE (1 << 21)
+# define GEN6_SF_POINT_SPRITE_UPPERLEFT (0 << 20)
# define GEN6_SF_POINT_SPRITE_LOWERLEFT (1 << 20)
# define GEN6_SF_URB_ENTRY_READ_LENGTH_SHIFT 11
# define GEN6_SF_URB_ENTRY_READ_OFFSET_SHIFT 4
diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c
index 548c5a397cc..163b54c3557 100644
--- a/src/mesa/drivers/dri/i965/gen6_sf_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c
@@ -129,6 +129,7 @@ upload_sf_state(struct brw_context *brw)
float point_size;
uint16_t attr_overrides[FRAG_ATTRIB_MAX];
bool userclip_active;
+ uint32_t point_sprite_origin;
/* _NEW_TRANSFORM */
userclip_active = (ctx->Transform.ClipPlanesEnabled != 0);
@@ -258,8 +259,16 @@ upload_sf_state(struct brw_context *brw)
/* Clamp to the hardware limits and convert to fixed point */
dw4 |= U_FIXED(CLAMP(point_size, 0.125, 255.875), 3);
- if (ctx->Point.SpriteOrigin == GL_LOWER_LEFT)
- dw1 |= GEN6_SF_POINT_SPRITE_LOWERLEFT;
+ /*
+ * Window coordinates in an FBO are inverted, which means point
+ * sprite origin must be inverted, too.
+ */
+ if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo) {
+ point_sprite_origin = GEN6_SF_POINT_SPRITE_LOWERLEFT;
+ } else {
+ point_sprite_origin = GEN6_SF_POINT_SPRITE_UPPERLEFT;
+ }
+ dw1 |= point_sprite_origin;
/* _NEW_LIGHT */
if (ctx->Light.ProvokingVertex != GL_FIRST_VERTEX_CONVENTION) {
diff --git a/src/mesa/drivers/dri/i965/gen7_sf_state.c b/src/mesa/drivers/dri/i965/gen7_sf_state.c
index 7691cb218d6..da7ef81cddf 100644
--- a/src/mesa/drivers/dri/i965/gen7_sf_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_sf_state.c
@@ -48,6 +48,9 @@ upload_sbe_state(struct brw_context *brw)
int urb_entry_read_offset = 1;
bool userclip_active = (ctx->Transform.ClipPlanesEnabled != 0);
uint16_t attr_overrides[FRAG_ATTRIB_MAX];
+ /* _NEW_BUFFERS */
+ bool render_to_fbo = ctx->DrawBuffer->Name != 0;
+ uint32_t point_sprite_origin;
brw_compute_vue_map(&vue_map, intel, userclip_active, vs_outputs_written);
urb_entry_read_length = (vue_map.num_slots + 1)/2 - urb_entry_read_offset;
@@ -65,9 +68,18 @@ upload_sbe_state(struct brw_context *brw)
urb_entry_read_length << GEN7_SBE_URB_ENTRY_READ_LENGTH_SHIFT |
urb_entry_read_offset << GEN7_SBE_URB_ENTRY_READ_OFFSET_SHIFT;
- /* _NEW_POINT */
- if (ctx->Point.SpriteOrigin == GL_LOWER_LEFT)
- dw1 |= GEN6_SF_POINT_SPRITE_LOWERLEFT;
+ /* _NEW_POINT
+ *
+ * Window coordinates in an FBO are inverted, which means point
+ * sprite origin must be inverted.
+ */
+ if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo) {
+ point_sprite_origin = GEN6_SF_POINT_SPRITE_LOWERLEFT;
+ } else {
+ point_sprite_origin = GEN6_SF_POINT_SPRITE_UPPERLEFT;
+ }
+ dw1 |= point_sprite_origin;
+
dw10 = 0;
dw11 = 0;