Mesa (master): svga: implement CEIL opcode translation
Brian Paul
brianp at kemper.freedesktop.org
Wed May 9 16:53:41 UTC 2012
Module: Mesa
Branch: master
Commit: a1c5513c175a2c13594dde7110822b205cabfc14
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a1c5513c175a2c13594dde7110822b205cabfc14
Author: Brian Paul <brianp at vmware.com>
Date: Wed May 9 10:31:07 2012 -0600
svga: implement CEIL opcode translation
Reviewed-by: José Fonseca <jfonseca at vmware.com>
---
src/gallium/drivers/svga/svga_tgsi_insn.c | 28 ++++++++++++++++++++++++++++
1 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/src/gallium/drivers/svga/svga_tgsi_insn.c b/src/gallium/drivers/svga/svga_tgsi_insn.c
index 5e6d1fb..a689126 100644
--- a/src/gallium/drivers/svga/svga_tgsi_insn.c
+++ b/src/gallium/drivers/svga/svga_tgsi_insn.c
@@ -871,6 +871,31 @@ static boolean emit_floor(struct svga_shader_emitter *emit,
}
+/* Translate the following TGSI CEIL instruction.
+ * CEIL DST, SRC
+ * To the following SVGA3D instruction sequence.
+ * FRC TMP, -SRC
+ * ADD DST, SRC, TMP
+ */
+static boolean emit_ceil(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
+{
+ SVGA3dShaderDestToken dst = translate_dst_register(emit, insn, 0);
+ const struct src_register src0 = translate_src_register(emit, &insn->Src[0]);
+ SVGA3dShaderDestToken temp = get_temp(emit);
+
+ /* FRC TMP, -SRC */
+ if (!submit_op1(emit, inst_token(SVGA3DOP_FRC), temp, negate(src0)))
+ return FALSE;
+
+ /* ADD DST, SRC, TMP */
+ if (!submit_op2(emit, inst_token(SVGA3DOP_ADD), dst, src0, src(temp)))
+ return FALSE;
+
+ return TRUE;
+}
+
+
/* Translate the following TGSI CMP instruction.
* CMP DST, SRC0, SRC1, SRC2
* To the following SVGA3D instruction sequence.
@@ -2435,6 +2460,9 @@ static boolean svga_emit_instruction( struct svga_shader_emitter *emit,
case TGSI_OPCODE_TRUNC: /* should be TRUNC, not FLR */
return emit_floor( emit, insn );
+ case TGSI_OPCODE_CEIL:
+ return emit_ceil( emit, insn );
+
case TGSI_OPCODE_CMP:
return emit_cmp( emit, insn );
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