Mesa (master): svga: Cannot use negate or abs on source to dsx/ dsy instructions.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Fri Feb 18 16:44:41 UTC 2011
Module: Mesa
Branch: master
Commit: f9b48678463e926571ab5e547bb5ced5f4a6896a
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=f9b48678463e926571ab5e547bb5ced5f4a6896a
Author: José Fonseca <jfonseca at vmware.com>
Date: Fri Feb 18 15:07:50 2011 +0000
svga: Cannot use negate or abs on source to dsx/dsy instructions.
---
src/gallium/drivers/svga/svga_tgsi_insn.c | 20 +++++++++++++++++++-
1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/src/gallium/drivers/svga/svga_tgsi_insn.c b/src/gallium/drivers/svga/svga_tgsi_insn.c
index f5842ef..99600cf 100644
--- a/src/gallium/drivers/svga/svga_tgsi_insn.c
+++ b/src/gallium/drivers/svga/svga_tgsi_insn.c
@@ -1704,6 +1704,10 @@ static boolean emit_deriv(struct svga_shader_emitter *emit,
}
else {
unsigned opcode;
+ const struct tgsi_full_src_register *reg = &insn->Src[0];
+ SVGA3dShaderInstToken inst;
+ SVGA3dShaderDestToken dst;
+ struct src_register src0;
switch (insn->Instruction.Opcode) {
case TGSI_OPCODE_DDX:
@@ -1716,7 +1720,21 @@ static boolean emit_deriv(struct svga_shader_emitter *emit,
return FALSE;
}
- return emit_simple_instruction( emit, opcode, insn );
+ inst = inst_token( opcode );
+ dst = translate_dst_register( emit, insn, 0 );
+ src0 = translate_src_register( emit, reg );
+
+ /* We cannot use negate or abs on source to dsx/dsy instruction.
+ */
+ if (reg->Register.Absolute ||
+ reg->Register.Negate) {
+ SVGA3dShaderDestToken temp = get_temp( emit );
+
+ if (!emit_repl( emit, temp, &src0 ))
+ return FALSE;
+ }
+
+ return submit_op1( emit, inst, dst, src0 );
}
}
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