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authorJason Ekstrand <[email protected]>2017-05-12 23:12:12 -0700
committerJason Ekstrand <[email protected]>2017-05-26 07:58:01 -0700
commit332a5d7a3f28f1c8b1231959085f1421e5c0c535 (patch)
tree26d6eb2ed04ed7addc4abcf601b170163608bf89 /src/intel/isl
parent8958355549014d67778f46665bfc4da645d8cf40 (diff)
intel/isl: Add support for setting component write disables
Reviewed-by: Topi Pohjolainen <[email protected]>
Diffstat (limited to 'src/intel/isl')
-rw-r--r--src/intel/isl/isl.h20
-rw-r--r--src/intel/isl/isl_surface_state.c6
2 files changed, 26 insertions, 0 deletions
diff --git a/src/intel/isl/isl.h b/src/intel/isl/isl.h
index 8131f45ae47..acc9e77d3e7 100644
--- a/src/intel/isl/isl.h
+++ b/src/intel/isl/isl.h
@@ -590,6 +590,21 @@ typedef uint64_t isl_surf_usage_flags_t;
/** @} */
/**
+ * @defgroup Channel Mask
+ *
+ * These #define values are chosen to match the values of
+ * RENDER_SURFACE_STATE::Color Buffer Component Write Disables
+ *
+ * @{
+ */
+typedef uint8_t isl_channel_mask_t;
+#define ISL_CHANNEL_BLUE_BIT (1 << 0)
+#define ISL_CHANNEL_GREEN_BIT (1 << 1)
+#define ISL_CHANNEL_RED_BIT (1 << 2)
+#define ISL_CHANNEL_ALPHA_BIT (1 << 3)
+/** @} */
+
+/**
* @brief A channel select (also known as texture swizzle) value
*/
enum isl_channel_select {
@@ -1009,6 +1024,11 @@ struct isl_surf_fill_state_info {
*/
union isl_color_value clear_color;
+ /**
+ * Surface write disables for gen4-5
+ */
+ isl_channel_mask_t write_disables;
+
/* Intra-tile offset */
uint16_t x_offset_sa, y_offset_sa;
};
diff --git a/src/intel/isl/isl_surface_state.c b/src/intel/isl/isl_surface_state.c
index fa464694862..d63b245ef23 100644
--- a/src/intel/isl/isl_surface_state.c
+++ b/src/intel/isl/isl_surface_state.c
@@ -256,6 +256,12 @@ isl_genX(surf_fill_state_s)(const struct isl_device *dev, void *state,
s.SurfaceFormat = info->view->format;
+#if GEN_GEN <= 5
+ s.ColorBufferComponentWriteDisables = info->write_disables;
+#else
+ assert(info->write_disables == 0);
+#endif
+
#if GEN_IS_HASWELL
s.IntegerSurfaceFormat = isl_format_has_int_channel(s.SurfaceFormat);
#endif