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-rw-r--r--src/gallium/drivers/radeonsi/evergreen_state.c18
-rw-r--r--src/gallium/drivers/radeonsi/radeonsi_shader.c8
2 files changed, 22 insertions, 4 deletions
diff --git a/src/gallium/drivers/radeonsi/evergreen_state.c b/src/gallium/drivers/radeonsi/evergreen_state.c
index c7bd6c1fe25..9c45719c750 100644
--- a/src/gallium/drivers/radeonsi/evergreen_state.c
+++ b/src/gallium/drivers/radeonsi/evergreen_state.c
@@ -1058,7 +1058,8 @@ static void *evergreen_create_rs_state(struct pipe_context *ctx,
rs->offset_scale = state->offset_scale * 12.0f;
rstate->id = R600_PIPE_STATE_RASTERIZER;
- tmp = S_0286D4_FLAT_SHADE_ENA(state->flatshade);
+ /* XXX: Flat shading hangs the GPU */
+ tmp = S_0286D4_FLAT_SHADE_ENA(0);
if (state->sprite_coord_enable) {
tmp |= S_0286D4_PNT_SPRITE_ENA(1) |
S_0286D4_PNT_SPRITE_OVRD_X(V_0286D4_SPI_PNT_SPRITE_SEL_S) |
@@ -2032,6 +2033,11 @@ void si_pipe_shader_ps(struct pipe_context *ctx, struct si_pipe_shader *shader)
db_shader_control = S_02880C_Z_ORDER(V_02880C_EARLY_Z_THEN_LATE_Z);
for (i = 0; i < rshader->ninput; i++) {
ninterp++;
+ /* XXX: Flat shading hangs the GPU */
+ if (rshader->input[i].interpolate == TGSI_INTERPOLATE_CONSTANT ||
+ (rshader->input[i].interpolate == TGSI_INTERPOLATE_COLOR &&
+ rctx->rasterizer->flatshade))
+ have_linear = TRUE;
if (rshader->input[i].interpolate == TGSI_INTERPOLATE_LINEAR)
have_linear = TRUE;
if (rshader->input[i].interpolate == TGSI_INTERPOLATE_PERSPECTIVE)
@@ -2224,11 +2230,15 @@ void si_update_spi_map(struct r600_context *rctx)
for (i = 0; i < ps->ninput; i++) {
tmp = 0;
- if (ps->input[i].name == TGSI_SEMANTIC_COLOR ||
- ps->input[i].name == TGSI_SEMANTIC_BCOLOR ||
- ps->input[i].name == TGSI_SEMANTIC_POSITION) {
+#if 0
+ /* XXX: Flat shading hangs the GPU */
+ if (ps->input[i].name == TGSI_SEMANTIC_POSITION ||
+ ps->input[i].interpolate == TGSI_INTERPOLATE_CONSTANT ||
+ (ps->input[i].interpolate == TGSI_INTERPOLATE_COLOR &&
+ rctx->rasterizer && rctx->rasterizer->flatshade)) {
tmp |= S_028644_FLAT_SHADE(1);
}
+#endif
if (ps->input[i].name == TGSI_SEMANTIC_GENERIC &&
rctx->sprite_coord_enable & (1 << ps->input[i].sid)) {
diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c
index 0a4f04bdb12..d0820b80302 100644
--- a/src/gallium/drivers/radeonsi/radeonsi_shader.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c
@@ -250,8 +250,13 @@ static void declare_input_fs(
/* XXX: Handle all possible interpolation modes */
switch (decl->Interp.Interpolate) {
case TGSI_INTERPOLATE_COLOR:
+ /* XXX: Flat shading hangs the GPU */
if (si_shader_ctx->rctx->rasterizer->flatshade) {
+#if 0
intr_name = "llvm.SI.fs.interp.constant";
+#else
+ intr_name = "llvm.SI.fs.interp.linear.center";
+#endif
} else {
if (decl->Interp.Centroid)
intr_name = "llvm.SI.fs.interp.persp.centroid";
@@ -260,8 +265,11 @@ static void declare_input_fs(
}
break;
case TGSI_INTERPOLATE_CONSTANT:
+ /* XXX: Flat shading hangs the GPU */
+#if 0
intr_name = "llvm.SI.fs.interp.constant";
break;
+#endif
case TGSI_INTERPOLATE_LINEAR:
if (decl->Interp.Centroid)
intr_name = "llvm.SI.fs.interp.linear.centroid";