v3dv: add subpixel precision definition

Move number of bits for subpixel precision in rasterizer to a define.

Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15407>

diff --git a/src/broadcom/common/v3d_limits.h b/src/broadcom/common/v3d_limits.h
index 129e53e..465802c 100644 (file)
--- a/src/broadcom/common/v3d_limits.h
+++ b/src/broadcom/common/v3d_limits.h
@@ -64,4 +64,7 @@
 
 #define V3D_MAX_BUFFER_RANGE (1 << 27)
 
+/* Sub-pixel precission bits in the rasterizer */
+#define V3D_COORD_SHIFT 6
+
 #endif /* V3D_LIMITS_H */

diff --git a/src/broadcom/vulkan/v3dv_device.c b/src/broadcom/vulkan/v3dv_device.c
index 751b97e..9cc4511 100644 (file)
--- a/src/broadcom/vulkan/v3dv_device.c
+++ b/src/broadcom/vulkan/v3dv_device.c
@@ -1346,9 +1346,7 @@ v3dv_GetPhysicalDeviceProperties(VkPhysicalDevice physicalDevice,
 
    const uint32_t max_varying_components = 16 * 4;
 
-   const uint32_t v3d_coord_shift = 6;
-
-   const float v3d_point_line_granularity = 2.0f / (1 << v3d_coord_shift);
+   const float v3d_point_line_granularity = 2.0f / (1 << V3D_COORD_SHIFT);
    const uint32_t max_fb_size = 4096;
 
    const VkSampleCountFlags supported_sample_counts =
@@ -1434,7 +1432,7 @@ v3dv_GetPhysicalDeviceProperties(VkPhysicalDevice physicalDevice,
       .maxComputeWorkGroupInvocations           = 256,
       .maxComputeWorkGroupSize                  = { 256, 256, 256 },
 
-      .subPixelPrecisionBits                    = v3d_coord_shift,
+      .subPixelPrecisionBits                    = V3D_COORD_SHIFT,
       .subTexelPrecisionBits                    = 8,
       .mipmapPrecisionBits                      = 8,
       .maxDrawIndexedIndexValue                 = 0x00ffffff,
@@ -1456,7 +1454,7 @@ v3dv_GetPhysicalDeviceProperties(VkPhysicalDevice physicalDevice,
       .maxTexelGatherOffset                     = 7,
       .minInterpolationOffset                   = -0.5,
       .maxInterpolationOffset                   = 0.5,
-      .subPixelInterpolationOffsetBits          = v3d_coord_shift,
+      .subPixelInterpolationOffsetBits          = V3D_COORD_SHIFT,
       .maxFramebufferWidth                      = max_fb_size,
       .maxFramebufferHeight                     = max_fb_size,
       .maxFramebufferLayers                     = 256,