Mesa (master): freedreno: we do actually support sqrt

[Rob Clark]

Module: Mesa
Branch: master
Commit: 4ddd4e83c70d1437caea0b9c61f89aade38e993e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=4ddd4e83c70d1437caea0b9c61f89aade38e993e

Author: Rob Clark <robclark at freedesktop.org>
Date:   Fri Oct 25 11:48:24 2013 -0400

freedreno: we do actually support sqrt

Signed-off-by: Rob Clark <robclark at freedesktop.org>

---

 src/gallium/drivers/freedreno/a2xx/fd2_compiler.c |    4 ++++
 src/gallium/drivers/freedreno/freedreno_screen.c  |    4 ++++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/freedreno/a2xx/fd2_compiler.c b/src/gallium/drivers/freedreno/a2xx/fd2_compiler.c
index 4d0dc32..e4acc7e 100644
--- a/src/gallium/drivers/freedreno/a2xx/fd2_compiler.c
+++ b/src/gallium/drivers/freedreno/a2xx/fd2_compiler.c
@@ -1042,6 +1042,10 @@ translate_instruction(struct fd2_compile_context *ctx,
 		instr = ir2_instr_create_alu(cf, ~0, RECIPSQ_IEEE);
 		add_regs_scalar_1(ctx, inst, instr);
 		break;
+	case TGSI_OPCODE_SQRT:
+		instr = ir2_instr_create_alu(cf, ~0, SQRT_IEEE);
+		add_regs_scalar_1(ctx, inst, instr);
+		break;
 	case TGSI_OPCODE_MUL:
 		instr = ir2_instr_create_alu(cf, MULv, ~0);
 		add_regs_vector_2(ctx, inst, instr);
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index 875b506..b6d37e7 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -315,7 +315,11 @@ fd_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 	case PIPE_SHADER_CAP_SUBROUTINES:
 		return 0;
 	case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
+		return 1;
 	case PIPE_SHADER_CAP_INTEGERS:
+		/* we should be able to support this on a3xx, but not
+		 * implemented yet:
+		 */
 		return 0;
 	case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 		return 16;