tu: Implement extendedDynamicState3LineRasterizationMode

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18912>

src/freedreno/vulkan/tu_cmd_buffer.c

@@ -2615,7 +2615,10 @@ tu_CmdBindPipeline(VkCommandBuffer commandBuffer,
       }
    }
 
-   cmd->state.line_mode = pipeline->rast.line_mode;
+   if (!(pipeline->dynamic_state_mask &
+         BIT(TU_DYNAMIC_STATE_LINE_MODE)))
+      cmd->state.line_mode = pipeline->rast.line_mode;
+
    if (!(pipeline->dynamic_state_mask &
          BIT(TU_DYNAMIC_STATE_PRIMITIVE_TOPOLOGY)))
       cmd->state.primtype = pipeline->ia.primtype;
@@ -3268,6 +3271,24 @@ tu_CmdSetRasterizationStreamEXT(VkCommandBuffer commandBuffer,
    cmd->state.dirty |= TU_CMD_DIRTY_PC_RASTER_CNTL;
 }
 
+VKAPI_ATTR void VKAPI_CALL
+tu_CmdSetLineRasterizationModeEXT(VkCommandBuffer commandBuffer,
+                                  VkLineRasterizationModeEXT lineRasterizationMode)
+{
+   TU_FROM_HANDLE(tu_cmd_buffer, cmd, commandBuffer);
+
+   cmd->state.line_mode = lineRasterizationMode ==
+      VK_LINE_RASTERIZATION_MODE_BRESENHAM_EXT ? BRESENHAM : RECTANGULAR;
+
+   tu6_update_msaa_disable(cmd);
+
+   cmd->state.gras_su_cntl =
+      (cmd->state.gras_su_cntl & ~A6XX_GRAS_SU_CNTL_LINE_MODE__MASK) |
+      A6XX_GRAS_SU_CNTL_LINE_MODE(cmd->state.line_mode);
+
+   cmd->state.dirty |= TU_CMD_DIRTY_RAST;
+}
+
 static void
 tu_flush_for_access(struct tu_cache_state *cache,
                     enum tu_cmd_access_mask src_mask,

src/freedreno/vulkan/tu_device.c

@@ -774,7 +774,7 @@ tu_GetPhysicalDeviceFeatures2(VkPhysicalDevice physicalDevice,
          features->extendedDynamicState3RasterizationStream = true;
          features->extendedDynamicState3ConservativeRasterizationMode = false;
          features->extendedDynamicState3ExtraPrimitiveOverestimationSize = false;
-         features->extendedDynamicState3LineRasterizationMode = false;
+         features->extendedDynamicState3LineRasterizationMode = true;
          features->extendedDynamicState3LineStippleEnable = false;
          features->extendedDynamicState3ProvokingVertexMode = false;
          features->extendedDynamicState3SampleLocationsEnable = false;

src/freedreno/vulkan/tu_pipeline.c

@@ -3777,6 +3777,13 @@ tu_pipeline_builder_parse_dynamic(struct tu_pipeline_builder *builder,
          pipeline->rast.pc_raster_cntl_mask &=
             ~A6XX_PC_RASTER_CNTL_STREAM__MASK;
          break;
+      case VK_DYNAMIC_STATE_LINE_RASTERIZATION_MODE_EXT:
+         pipeline->dynamic_state_mask |=
+            BIT(TU_DYNAMIC_STATE_RAST) |
+            BIT(TU_DYNAMIC_STATE_LINE_MODE);
+         pipeline->rast.gras_su_cntl_mask &=
+            ~A6XX_GRAS_SU_CNTL_LINE_MODE__MASK;
+         break;
       default:
          assert(!"unsupported dynamic state");
          break;
@@ -3847,7 +3854,8 @@ tu_pipeline_builder_parse_libraries(struct tu_pipeline_builder *builder,
             BIT(TU_DYNAMIC_STATE_PATCH_CONTROL_POINTS) |
             BIT(TU_DYNAMIC_STATE_POLYGON_MODE) |
             BIT(TU_DYNAMIC_STATE_TESS_DOMAIN_ORIGIN) |
-            BIT(TU_DYNAMIC_STATE_VIEWPORT_RANGE);
+            BIT(TU_DYNAMIC_STATE_VIEWPORT_RANGE) |
+            BIT(TU_DYNAMIC_STATE_LINE_MODE);
       }
 
       if (library->state &

src/freedreno/vulkan/tu_pipeline.h

@@ -41,6 +41,7 @@ enum tu_dynamic_state
    TU_DYNAMIC_STATE_ALPHA_TO_COVERAGE,
    TU_DYNAMIC_STATE_DEPTH_CLIP_RANGE,
    TU_DYNAMIC_STATE_VIEWPORT_RANGE,
+   TU_DYNAMIC_STATE_LINE_MODE,
    /* re-use the line width enum as it uses GRAS_SU_CNTL: */
    TU_DYNAMIC_STATE_RAST = VK_DYNAMIC_STATE_LINE_WIDTH,
 };