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authorTopi Pohjolainen <topi.pohjolainen@intel.com>2016-04-03 18:51:43 +0300
committerTopi Pohjolainen <topi.pohjolainen@intel.com>2016-04-21 10:20:02 +0300
commit4c3de6b2d651e43d686085872b916a04f4444930 (patch)
treedfcfc0bc0ff25031640c14de0538b2080183dac7 /src
parentda5a477ce413e4355eb5d826d112459629087fb0 (diff)
i965/blorp: Add support for disabling color blending
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/i965/brw_blorp.cpp4
-rw-r--r--src/mesa/drivers/dri/i965/brw_blorp.h1
-rw-r--r--src/mesa/drivers/dri/i965/gen6_blorp.cpp5
-rw-r--r--src/mesa/drivers/dri/i965/gen8_blorp.cpp9
4 files changed, 19 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_blorp.cpp b/src/mesa/drivers/dri/i965/brw_blorp.cpp
index 18296237efd..618949c72a8 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp.cpp
@@ -170,6 +170,10 @@ brw_blorp_params::brw_blorp_params(unsigned num_varyings,
num_draw_buffers(num_draw_buffers),
num_layers(num_layers)
{
+ color_write_disable[0] = false;
+ color_write_disable[1] = false;
+ color_write_disable[2] = false;
+ color_write_disable[3] = false;
}
extern "C" {
diff --git a/src/mesa/drivers/dri/i965/brw_blorp.h b/src/mesa/drivers/dri/i965/brw_blorp.h
index a291aff4525..ef92fdc2459 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.h
+++ b/src/mesa/drivers/dri/i965/brw_blorp.h
@@ -242,6 +242,7 @@ public:
brw_blorp_surface_info dst;
enum gen6_hiz_op hiz_op;
unsigned fast_clear_op;
+ bool color_write_disable[4];
bool use_wm_prog;
brw_blorp_wm_push_constants wm_push_consts;
const unsigned num_varyings;
diff --git a/src/mesa/drivers/dri/i965/gen6_blorp.cpp b/src/mesa/drivers/dri/i965/gen6_blorp.cpp
index d635962e7b3..cbb435578eb 100644
--- a/src/mesa/drivers/dri/i965/gen6_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen6_blorp.cpp
@@ -260,6 +260,11 @@ gen6_blorp_emit_blend_state(struct brw_context *brw,
blend[i].blend1.pre_blend_clamp_enable = 1;
blend[i].blend1.post_blend_clamp_enable = 1;
blend[i].blend1.clamp_range = BRW_RENDERTARGET_CLAMPRANGE_FORMAT;
+
+ blend[i].blend1.write_disable_r = params->color_write_disable[0];
+ blend[i].blend1.write_disable_g = params->color_write_disable[1];
+ blend[i].blend1.write_disable_b = params->color_write_disable[2];
+ blend[i].blend1.write_disable_a = params->color_write_disable[3];
}
return cc_blend_state_offset;
diff --git a/src/mesa/drivers/dri/i965/gen8_blorp.cpp b/src/mesa/drivers/dri/i965/gen8_blorp.cpp
index 65ebf5ba44c..3c0276fa0e1 100644
--- a/src/mesa/drivers/dri/i965/gen8_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen8_blorp.cpp
@@ -138,6 +138,15 @@ gen8_blorp_emit_blend_state(struct brw_context *brw,
memset(blend, 0, size);
for (unsigned i = 0; i < params->num_draw_buffers; ++i) {
+ if (params->color_write_disable[0])
+ blend[1 + 2 * i] |= GEN8_BLEND_WRITE_DISABLE_RED;
+ if (params->color_write_disable[1])
+ blend[1 + 2 * i] |= GEN8_BLEND_WRITE_DISABLE_GREEN;
+ if (params->color_write_disable[2])
+ blend[1 + 2 * i] |= GEN8_BLEND_WRITE_DISABLE_BLUE;
+ if (params->color_write_disable[3])
+ blend[1 + 2 * i] |= GEN8_BLEND_WRITE_DISABLE_ALPHA;
+
blend[1 + 2 * i + 1] = GEN8_BLEND_PRE_BLEND_COLOR_CLAMP_ENABLE |
GEN8_BLEND_POST_BLEND_COLOR_CLAMP_ENABLE |
GEN8_BLEND_COLOR_CLAMP_RANGE_RTFORMAT;