fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-01-17 04:50:19 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

TEX to output

Browse source
This commit is contained in:
Ben Skeggs 2005-06-06 07:38:29 +00:00
parent 3c4c6d1f80
commit d59fbcdee5
1 changed files with 45 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

51
src/mesa/drivers/dri/r300/r300_fragprog.c
View file

@ -239,6 +239,32 @@ static pfs_reg_t get_temp_reg(struct r300_fragment_program *rp)
return r;
}
static pfs_reg_t get_temp_reg_tex(struct r300_fragment_program *rp)
{
pfs_reg_t r = pfs_default_reg;
int hwreg;
hwreg = ffs(~(rp->hwreg_in_use | rp->used_in_node));
if (!hwreg) {
/* Try and grab an already used temp, will
* cause an indirection, but better than failing */
return get_temp_reg(rp);
}
if (hwreg > rp->max_temp_idx)
rp->max_temp_idx = hwreg;
r.index = ffs(~rp->temp_in_use);
if (!r.index) {
ERROR("Out of program temps\n");
return r;
}
rp->temp_in_use |= (1 << --r.index);
rp->temps[r.index] = --hwreg;
r.valid = GL_TRUE;
return r;
}
static void free_temp(struct r300_fragment_program *rp, pfs_reg_t r)
{
if (!rp || !(rp->temp_in_use & (1<<r.index))) return;
@ -317,8 +343,6 @@ static int swz_emit_partial(struct r300_fragment_program *rp,
static int swz_special_case(struct r300_fragment_program *rp,
pfs_reg_t src, pfs_reg_t *r, int mask, int mc)
{
pfs_reg_t ssrc = pfs_default_reg;
switch(GET_SWZ(v_swiz[src.v_swz].hash, 0)) {
case SWIZZLE_ONE:
case SWIZZLE_ZERO:
@ -468,10 +492,15 @@ static void emit_tex(struct r300_fragment_program *rp,
int opcode)
{
pfs_reg_t coord = t_src(rp, fpi->SrcReg[0]);
pfs_reg_t dest = t_dst(rp, fpi->DstReg);
pfs_reg_t dest = t_dst(rp, fpi->DstReg), rdest = pfs_default_reg;
int unit = fpi->TexSrcUnit;
int hwsrc, hwdest, flags = 0;
if (dest.type == REG_TYPE_OUTPUT) {
rdest = dest;
dest = get_temp_reg_tex(rp);
}
switch (coord.type) {
case REG_TYPE_TEMP:
hwsrc = rp->temps[coord.index];
@ -499,6 +528,7 @@ static void emit_tex(struct r300_fragment_program *rp,
ERROR("too many levels of texture indirection\n");
return;
}
/* Finish off current node */
sync_streams(rp);
rp->node[rp->cur_node].alu_end = rp->v_pos - 1;
@ -521,9 +551,17 @@ static void emit_tex(struct r300_fragment_program *rp,
| (unit << R300_FPITX_IMAGE_SHIFT)
| (opcode << R300_FPITX_OPCODE_SHIFT) /* not entirely sure about this */
| flags;
rp->dest_in_node |= (1 << hwdest);
rp->dest_in_node |= (1 << hwdest);
if (coord.type != REG_TYPE_CONST)
rp->used_in_node |= (1 << hwsrc);
rp->node[rp->cur_node].tex_end++;
/* Copy from temp to output if needed */
if (rdest.valid) {
emit_arith(rp, PFS_OP_MAD, rdest, WRITEMASK_XYZW, dest, pfs_one, pfs_zero, 0);
free_temp(rp, dest);
}
}
#define ARG_NEG (1<<5)
@ -977,7 +1015,7 @@ void update_params(struct r300_fragment_program *rp) {
void translate_fragment_shader(struct r300_fragment_program *rp)
{
int i;
if (!rp->translated) {
init_program(rp);
@ -998,6 +1036,7 @@ void translate_fragment_shader(struct r300_fragment_program *rp)
if (0) dump_program(rp);
}
update_params(rp);
}