fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-04 22:49:13 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

r300: Explicitly set absolute value for the argument of RSQ

Browse source 
This fixes the last r500 bug related to glean/fragProg1.
This commit is contained in:
Nicolai Haehnle 2008-07-12 01:19:19 +02:00
parent b6765c3499
commit 11d711df36
1 changed files with 11 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
src/mesa/drivers/dri/r300/radeon_program_alu.c
View file

@ -153,6 +153,7 @@ static struct prog_src_register absolute(struct prog_src_register reg)
{
struct prog_src_register newreg = reg;
newreg.Abs = 1;
newreg.NegateBase = 0;
newreg.NegateAbs = 0;
return newreg;
}
@ -343,6 +344,12 @@ static void transform_POW(struct radeon_transform_context* t,
emit1(t->Program, OPCODE_EX2, inst->DstReg, tempsrc);
}
static void transform_RSQ(struct radeon_transform_context* t,
struct prog_instruction* inst)
{
emit1(t->Program, OPCODE_RSQ, inst->DstReg, absolute(inst->SrcReg[0]));
}
static void transform_SGE(struct radeon_transform_context* t,
struct prog_instruction* inst)
{
@ -397,6 +404,9 @@ static void transform_XPD(struct radeon_transform_context* t,
* using:
* MOV, ADD, MUL, MAD, FRC, DP3, LG2, EX2, CMP
*
* Transforms RSQ to Radeon's native RSQ by explicitly setting
* absolute value.
*
* @note should be applicable to R300 and R500 fragment programs.
*/
GLboolean radeonTransformALU(struct radeon_transform_context* t,
@ -411,6 +421,7 @@ GLboolean radeonTransformALU(struct radeon_transform_context* t,
case OPCODE_LIT: transform_LIT(t, inst); return GL_TRUE;
case OPCODE_LRP: transform_LRP(t, inst); return GL_TRUE;
case OPCODE_POW: transform_POW(t, inst); return GL_TRUE;
case OPCODE_RSQ: transform_RSQ(t, inst); return GL_TRUE;
case OPCODE_SGE: transform_SGE(t, inst); return GL_TRUE;
case OPCODE_SLT: transform_SLT(t, inst); return GL_TRUE;
case OPCODE_SUB: transform_SUB(t, inst); return GL_TRUE;