fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-01-24 01:40:22 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 5

i965/vs: Apply the gen6 math workaround for math1 instructions.

Browse source 
Fixes glsl-vs-masked-cos.
This commit is contained in:
Eric Anholt 2011-08-05 20:16:21 -07:00
parent 2b7632aeaa
commit cda28bca0d
1 changed files with 4 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
View file

@ -122,14 +122,12 @@ vec4_visitor::emit_math1_gen6(enum opcode opcode, dst_reg dst, src_reg src)
{
/* The gen6 math instruction ignores the source modifiers --
* swizzle, abs, negate, and at least some parts of the register
* region description. Move the source to the corresponding slots
* of the destination generally work.
* region description.
*/
src_reg expanded = src_reg(this, glsl_type::float_type);
emit(BRW_OPCODE_MOV, dst, src);
src = expanded;
src_reg temp_src = src_reg(this, glsl_type::vec4_type);
emit(BRW_OPCODE_MOV, dst_reg(temp_src), src);
emit(opcode, dst, src);
emit(opcode, dst, temp_src);
}
void