r300g: add polygon mode

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>

5 files changed, 67 insertions, 3 deletions

diff --git a/src/gallium/drivers/r300/r300_context.h b/src/gallium/drivers/r300/r300_context.h
index 8c65c04d01..850e5a41c9 100644
--- a/src/gallium/drivers/r300/r300_context.h
+++ b/src/gallium/drivers/r300/r300_context.h
@@ -78,6 +78,7 @@ struct r300_rs_state {
     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
+    uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
 };
 
 struct r300_rs_block {
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c
index 6415c59c2d..69ce5966e8 100644
--- a/src/gallium/drivers/r300/r300_emit.c
+++ b/src/gallium/drivers/r300/r300_emit.c
@@ -483,7 +483,7 @@ void r300_emit_rs_state(struct r300_context* r300, struct r300_rs_state* rs)
 {
     CS_LOCALS(r300);
 
-    BEGIN_CS(20);
+    BEGIN_CS(22);
     OUT_CS_REG(R300_VAP_CNTL_STATUS, rs->vap_control_status);
     OUT_CS_REG(R300_GA_POINT_SIZE, rs->point_size);
     OUT_CS_REG_SEQ(R300_GA_POINT_MINMAX, 2);
@@ -499,6 +499,7 @@ void r300_emit_rs_state(struct r300_context* r300, struct r300_rs_state* rs)
     OUT_CS_REG(R300_GA_LINE_STIPPLE_CONFIG, rs->line_stipple_config);
     OUT_CS_REG(R300_GA_LINE_STIPPLE_VALUE, rs->line_stipple_value);
     OUT_CS_REG(R300_GA_COLOR_CONTROL, rs->color_control);
+    OUT_CS_REG(R300_GA_POLY_MODE, rs->polygon_mode);
     END_CS;
 }
 
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 242ec9f365..658a8cba13 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -398,25 +398,52 @@ static void* r300_create_rs_state(struct pipe_context* pipe,
     rs->line_control = pack_float_16_6x(state->line_width) |
         R300_GA_LINE_CNTL_END_TYPE_COMP;
 
+    /* XXX I think there is something wrong with the polygon mode,
+     * XXX re-test when r300g is in a better shape */
+
+    /* Enable polygon mode */
+    if (state->fill_cw != PIPE_POLYGON_MODE_FILL ||
+        state->fill_ccw != PIPE_POLYGON_MODE_FILL) {
+        rs->polygon_mode = R300_GA_POLY_MODE_DUAL;
+    }
+
     /* Radeons don't think in "CW/CCW", they think in "front/back". */
     if (state->front_winding == PIPE_WINDING_CW) {
         rs->cull_mode = R300_FRONT_FACE_CW;
 
+        /* Polygon offset */
         if (state->offset_cw) {
             rs->polygon_offset_enable |= R300_FRONT_ENABLE;
         }
         if (state->offset_ccw) {
             rs->polygon_offset_enable |= R300_BACK_ENABLE;
         }
+
+        /* Polygon mode */
+        if (rs->polygon_mode) {
+            rs->polygon_mode |=
+                r300_translate_polygon_mode_front(state->fill_cw);
+            rs->polygon_mode |=
+                r300_translate_polygon_mode_back(state->fill_ccw);
+        }
     } else {
         rs->cull_mode = R300_FRONT_FACE_CCW;
 
+        /* Polygon offset */
         if (state->offset_ccw) {
             rs->polygon_offset_enable |= R300_FRONT_ENABLE;
         }
         if (state->offset_cw) {
             rs->polygon_offset_enable |= R300_BACK_ENABLE;
         }
+
+        /* Polygon mode */
+        if (rs->polygon_mode) {
+            rs->polygon_mode |=
+                r300_translate_polygon_mode_front(state->fill_ccw);
+            rs->polygon_mode |=
+                r300_translate_polygon_mode_back(state->fill_cw);
+        }
     }
     if (state->front_winding & state->cull_mode) {
         rs->cull_mode |= R300_CULL_FRONT;
diff --git a/src/gallium/drivers/r300/r300_state_inlines.h b/src/gallium/drivers/r300/r300_state_inlines.h
index 176e59f281..52b9650fc1 100644
--- a/src/gallium/drivers/r300/r300_state_inlines.h
+++ b/src/gallium/drivers/r300/r300_state_inlines.h
@@ -504,4 +504,40 @@ r300_translate_vertex_data_swizzle(enum pipe_format format) {
         (0xf << R300_WRITE_ENA_SHIFT));
 }
 
+static INLINE uint32_t
+r300_translate_polygon_mode_front(unsigned mode) {
+    switch (mode)
+    {
+        case PIPE_POLYGON_MODE_FILL:
+            return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
+        case PIPE_POLYGON_MODE_LINE:
+            return R300_GA_POLY_MODE_FRONT_PTYPE_LINE;
+        case PIPE_POLYGON_MODE_POINT:
+            return R300_GA_POLY_MODE_FRONT_PTYPE_POINT;
+
+        default:
+            debug_printf("r300: Bad polygon mode %i in %s\n", mode,
+                __FUNCTION__);
+            return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
+    }
+}
+
+static INLINE uint32_t
+r300_translate_polygon_mode_back(unsigned mode) {
+    switch (mode)
+    {
+        case PIPE_POLYGON_MODE_FILL:
+            return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
+        case PIPE_POLYGON_MODE_LINE:
+            return R300_GA_POLY_MODE_BACK_PTYPE_LINE;
+        case PIPE_POLYGON_MODE_POINT:
+            return R300_GA_POLY_MODE_BACK_PTYPE_POINT;
+
+        default:
+            debug_printf("r300: Bad polygon mode %i in %s\n", mode,
+                __FUNCTION__);
+            return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
+    }
+}
+
 #endif /* R300_STATE_INLINES_H */
diff --git a/src/gallium/drivers/r300/r300_state_invariant.c b/src/gallium/drivers/r300/r300_state_invariant.c
index 7e4d5c7c72..c07e6ae676 100644
--- a/src/gallium/drivers/r300/r300_state_invariant.c
+++ b/src/gallium/drivers/r300/r300_state_invariant.c
@@ -84,7 +84,7 @@ void r300_emit_invariant_state(struct r300_context* r300)
     END_CS;
 
     /* XXX unsorted stuff from surface_fill */
-    BEGIN_CS(62 + (caps->has_tcl ? 5 : 0) + (caps->is_r500 ? 4 : 0));
+    BEGIN_CS(60 + (caps->has_tcl ? 5 : 0) + (caps->is_r500 ? 4 : 0));
     /* Flush PVS. */
     OUT_CS_REG(R300_VAP_PVS_STATE_FLUSH_REG, 0x0);
 
@@ -114,7 +114,6 @@ void r300_emit_invariant_state(struct r300_context* r300)
     /* XXX this big chunk should be refactored into rs_state */
     OUT_CS_REG(R300_GA_SOLID_RG, 0x00000000);
     OUT_CS_REG(R300_GA_SOLID_BA, 0x00000000);
-    OUT_CS_REG(R300_GA_POLY_MODE, 0x00000000);
     OUT_CS_REG(R300_GA_ROUND_MODE, 0x00000001);
     OUT_CS_REG(R300_GA_OFFSET, 0x00000000);
     OUT_CS_REG(R300_GA_FOG_SCALE, 0x3DBF1412);