mesa: Kill GL_ARB_shadow_ambient with fire

No driver supports this extension, and it seems unlikely than any driver
ever will.  I think r300c may have supported it at one time, but that
driver has already been removed.

Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>

2 files changed, 2 insertions, 12 deletions

diff --git a/src/gallium/drivers/r300/compiler/radeon_compiler.h b/src/gallium/drivers/r300/compiler/radeon_compiler.h
index d42cee9cce1..f78a51c19c3 100644
--- a/src/gallium/drivers/r300/compiler/radeon_compiler.h
+++ b/src/gallium/drivers/r300/compiler/radeon_compiler.h
@@ -114,7 +114,6 @@ struct r300_fragment_program_compiler {
 	struct rX00_fragment_program_code *code;
 	/* Optional transformations and features. */
 	struct r300_fragment_program_external_state state;
-	unsigned enable_shadow_ambient;
 	/* Register corresponding to the depthbuffer. */
 	unsigned OutputDepth;
 	/* Registers corresponding to the four colorbuffers. */
diff --git a/src/gallium/drivers/r300/compiler/radeon_program_tex.c b/src/gallium/drivers/r300/compiler/radeon_program_tex.c
index 9d69ebd18fb..8dfcd54d238 100644
--- a/src/gallium/drivers/r300/compiler/radeon_program_tex.c
+++ b/src/gallium/drivers/r300/compiler/radeon_program_tex.c
@@ -37,17 +37,8 @@ static struct rc_src_register shadow_fail_value(struct r300_fragment_program_com
 {
 	struct rc_src_register reg = { 0, 0, 0, 0, 0, 0 };
 
-	if (compiler->enable_shadow_ambient) {
-		reg.File = RC_FILE_CONSTANT;
-		reg.Index = rc_constants_add_state(&compiler->Base.Program.Constants,
-						   RC_STATE_SHADOW_AMBIENT, tmu);
-		reg.Swizzle = RC_SWIZZLE_WWWW;
-	} else {
-		reg.File = RC_FILE_NONE;
-		reg.Swizzle = RC_SWIZZLE_0000;
-	}
-
-	reg.Swizzle = combine_swizzles(reg.Swizzle,
+	reg.File = RC_FILE_NONE;
+	reg.Swizzle = combine_swizzles(RC_SWIZZLE_0000,
 				compiler->state.unit[tmu].texture_swizzle);
 	return reg;
 }