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r300g: set better values in the R300_VAP_CNTL register

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This commit is contained in:
Marek Olšák 2009-11-19 01:35:08 +01:00 • committed by Corbin Simpson
parent 0295edf596
commit beea241374
1 changed files with 28 additions and 5 deletions
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33
src/gallium/drivers/r300/r300_emit.c
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@ -690,12 +690,35 @@ void r300_emit_vertex_format_state(struct r300_context* r300)
END_CS;
}
/* XXX This should probably go to util ... */
/* Return the number of bits set in the given number. */
static unsigned bitcount(unsigned n)
{
unsigned bits;
for (bits = 0; n > 0; n = n >> 1) {
bits += n & 1;
}
return bits;
}
/* XXX ... and this one too. */
#define MIN3(x, y, z) MIN2(MIN2(x, y), z)
void r300_emit_vertex_program_code(struct r300_context* r300,
struct r300_vertex_program_code* code)
{
int i;
struct r300_screen* r300screen = r300_screen(r300->context.screen);
unsigned instruction_count = code->length / 4;
int vtx_mem_size = r300screen->caps->is_r500 ? 128 : 72;
int input_count = MAX2(bitcount(code->InputsRead), 1);
int output_count = MAX2(bitcount(code->OutputsWritten), 1);
int temp_count = MAX2(code->num_temporaries, 1);
int pvs_num_slots = MIN3(vtx_mem_size / input_count,
vtx_mem_size / output_count, 10);
int pvs_num_controllers = MIN2(6, vtx_mem_size / temp_count);
CS_LOCALS(r300);
if (!r300screen->caps->has_tcl) {
@ -708,8 +731,7 @@ void r300_emit_vertex_program_code(struct r300_context* r300,
/* R300_VAP_PVS_CODE_CNTL_0
* R300_VAP_PVS_CONST_CNTL
* R300_VAP_PVS_CODE_CNTL_1
* See the r5xx docs for instructions on how to use these.
* XXX these could be optimized to select better values... */
* See the r5xx docs for instructions on how to use these. */
OUT_CS_REG_SEQ(R300_VAP_PVS_CODE_CNTL_0, 3);
OUT_CS(R300_PVS_FIRST_INST(0) |
R300_PVS_XYZW_VALID_INST(instruction_count - 1) |
@ -722,10 +744,11 @@ void r300_emit_vertex_program_code(struct r300_context* r300,
for (i = 0; i < code->length; i++)
OUT_CS(code->body.d[i]);
OUT_CS_REG(R300_VAP_CNTL, R300_PVS_NUM_SLOTS(10) |
R300_PVS_NUM_CNTLRS(5) |
OUT_CS_REG(R300_VAP_CNTL, R300_PVS_NUM_SLOTS(pvs_num_slots) |
R300_PVS_NUM_CNTLRS(pvs_num_controllers) |
R300_PVS_NUM_FPUS(r300screen->caps->num_vert_fpus) |
R300_PVS_VF_MAX_VTX_NUM(12));
R300_PVS_VF_MAX_VTX_NUM(12) |
(r300screen->caps->is_r500 ? R500_TCL_STATE_OPTIMIZATION : 0));
END_CS;
}