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authorEric Anholt <[email protected]>2010-03-10 11:00:40 -0800
committerEric Anholt <[email protected]>2010-03-16 12:14:18 -0700
commit837f003eeb1ce56c2d8285e82ee86b5ffbb19442 (patch)
tree747d84c0fb08244896d8d7f0e21b80bb0d398ff6
parent7ee4db50b10ab2d8fdfc4781f26b84041cf568d7 (diff)
i965: Add support for the CMP opcode in the GLSL path.
This would be triggered by use of sqrt() along with control flow. Fixes piglit-fs-sqrt-branch and a bug in Yo Frankie!. (cherry picked from commit 48dca99feb394febc3af44e14f23fb12a9cc9204)
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm.h6
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_emit.c12
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_glsl.c3
3 files changed, 15 insertions, 6 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm.h b/src/mesa/drivers/dri/i965/brw_wm.h
index 88d84ee82fe..47b764d24d1 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.h
+++ b/src/mesa/drivers/dri/i965/brw_wm.h
@@ -328,6 +328,12 @@ void emit_cinterp(struct brw_compile *p,
const struct brw_reg *dst,
GLuint mask,
const struct brw_reg *arg0);
+void emit_cmp(struct brw_compile *p,
+ const struct brw_reg *dst,
+ GLuint mask,
+ const struct brw_reg *arg0,
+ const struct brw_reg *arg1,
+ const struct brw_reg *arg2);
void emit_ddxy(struct brw_compile *p,
const struct brw_reg *dst,
GLuint mask,
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c
index 9315bca3156..c7d87b9d94c 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c
@@ -566,12 +566,12 @@ static void emit_sne( struct brw_compile *p,
emit_sop(p, dst, mask, BRW_CONDITIONAL_NEQ, arg0, arg1);
}
-static void emit_cmp( struct brw_compile *p,
- const struct brw_reg *dst,
- GLuint mask,
- const struct brw_reg *arg0,
- const struct brw_reg *arg1,
- const struct brw_reg *arg2 )
+void emit_cmp(struct brw_compile *p,
+ const struct brw_reg *dst,
+ GLuint mask,
+ const struct brw_reg *arg0,
+ const struct brw_reg *arg1,
+ const struct brw_reg *arg2)
{
GLuint i;
diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c
index 562608e2ecd..a42e6bf7a58 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c
@@ -1960,6 +1960,9 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c)
case OPCODE_LG2:
emit_math1(c, BRW_MATH_FUNCTION_LOG, dst, dst_flags, args[0]);
break;
+ case OPCODE_CMP:
+ emit_cmp(p, dst, dst_flags, args[0], args[1], args[2]);
+ break;
case OPCODE_MIN:
unalias2(c, emit_min, dst, dst_flags, args[0], args[1]);
break;