freedreno/a4xx: frag-coord / face fixes

Signed-off-by: Rob Clark <robclark@freedesktop.org>

diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_program.c b/src/gallium/drivers/freedreno/a4xx/fd4_program.c
index 76cadcccfa5fd667b9ff20208186fde2df6cd4ba..cbfd8b2d4cc241db4fac72d8fd040946abc771fb 100644 (file)
--- a/src/gallium/drivers/freedreno/a4xx/fd4_program.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_program.c
@@ -200,6 +200,7 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit)
 {
        struct stage s[MAX_STAGES];
        uint32_t pos_regid, posz_regid, psize_regid, color_regid;
+       uint32_t face_regid, coord_regid;
        int constmode;
        int i, j, k;
 
@@ -217,6 +218,10 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit)
        color_regid = ir3_find_output_regid(s[FS].v,
                ir3_semantic_name(TGSI_SEMANTIC_COLOR, 0));
 
+       /* TODO get these dynamically: */
+       face_regid = s[FS].v->frag_face ? regid(0,0) : regid(63,0);
+       coord_regid = s[FS].v->frag_coord ? regid(0,0) : regid(63,0);
+
        /* we could probably divide this up into things that need to be
         * emitted if frag-prog is dirty vs if vert-prog is dirty..
         */
@@ -235,11 +240,14 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit)
                        A4XX_HLSQ_CONTROL_0_REG_SPSHADERRESTART |
                        A4XX_HLSQ_CONTROL_0_REG_SPCONSTFULLUPDATE);
        OUT_RING(ring, A4XX_HLSQ_CONTROL_1_REG_VSTHREADSIZE(TWO_QUADS) |
-                       0xfcfc0000 |          /* XXX */
+                       0xfc000000 |          /* XXX */
                        A4XX_HLSQ_CONTROL_1_REG_VSSUPERTHREADENABLE |
-                       COND(s[FS].v->frag_coord, A4XX_HLSQ_CONTROL_1_REG_ZWCOORD));
-       OUT_RING(ring, A4XX_HLSQ_CONTROL_2_REG_PRIMALLOCTHRESHOLD(31));
-       OUT_RING(ring, A4XX_HLSQ_CONTROL_3_REG_REGID(s[FS].v->pos_regid));
+                       A4XX_HLSQ_CONTROL_1_REG_COORDREGID(coord_regid));
+       OUT_RING(ring, A4XX_HLSQ_CONTROL_2_REG_PRIMALLOCTHRESHOLD(63) |
+                       0x3f3f000 |           /* XXX */
+                       A4XX_HLSQ_CONTROL_2_REG_FACEREGID(face_regid));
+       OUT_RING(ring, A4XX_HLSQ_CONTROL_3_REG_REGID(s[FS].v->pos_regid) |
+                       0xfcfcfc00);
 
        OUT_PKT0(ring, REG_A4XX_HLSQ_VS_CONTROL_REG, 5);
        OUT_RING(ring, A4XX_HLSQ_VS_CONTROL_REG_CONSTLENGTH(s[VS].constlen) |
@@ -349,7 +357,9 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit)
                        COND(s[FS].v->has_samp, A4XX_SP_FS_CTRL_REG0_PIXLODENABLE));
        OUT_RING(ring, A4XX_SP_FS_CTRL_REG1_CONSTLENGTH(s[FS].constlen) |
                        0x80000000 |      /* XXX */
-                       COND(s[FS].v->total_in > 0, A4XX_SP_FS_CTRL_REG1_VARYING));
+                       COND(s[FS].v->frag_face, A4XX_SP_FS_CTRL_REG1_FACENESS) |
+                       COND(s[FS].v->total_in > 0, A4XX_SP_FS_CTRL_REG1_VARYING) |
+                       COND(s[FS].v->frag_coord, A4XX_SP_FS_CTRL_REG1_FRAGCOORD));
 
        OUT_PKT0(ring, REG_A4XX_SP_FS_OBJ_OFFSET_REG, 2);
        OUT_RING(ring, A4XX_SP_FS_OBJ_OFFSET_REG_CONSTOBJECTOFFSET(s[FS].constoff) |
@@ -373,7 +383,10 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit)
 
        OUT_PKT0(ring, REG_A4XX_RB_RENDER_CONTROL2, 1);
        OUT_RING(ring, A4XX_RB_RENDER_CONTROL2_MSAA_SAMPLES(0) |
-                       COND(s[FS].v->total_in > 0, A4XX_RB_RENDER_CONTROL2_VARYING));
+                       COND(s[FS].v->total_in > 0, A4XX_RB_RENDER_CONTROL2_VARYING) |
+                       COND(s[FS].v->frag_face, A4XX_RB_RENDER_CONTROL2_FACENESS) |
+                       COND(s[FS].v->frag_coord, A4XX_RB_RENDER_CONTROL2_XCOORD |
+                                       A4XX_RB_RENDER_CONTROL2_YCOORD));
 
        OUT_PKT0(ring, REG_A4XX_RB_FS_OUTPUT_REG, 1);
        OUT_RING(ring, A4XX_RB_FS_OUTPUT_REG_COLOR_PIPE_ENABLE |