#include "radeon_compiler.h"
+#include "util/u_math.h"
+
/* Convert info about VS output semantics into r300_shader_semantics. */
static void r300_shader_read_vs_outputs(
struct tgsi_shader_info* info,
vs_outputs->fog = i;
break;
+ case TGSI_SEMANTIC_EDGEFLAG:
+ assert(index == 0);
+ fprintf(stderr, "r300 VP: cannot handle edgeflag output\n");
+ assert(0);
+ break;
default:
assert(0);
}
gen_count++;
}
+ /* WPOS. */
+ if (vs_outputs->wpos != ATTR_UNUSED) {
+ hwfmt[1] |= (R300_INPUT_CNTL_TC0 << gen_count);
+ hwfmt[3] |= (4 << (3 * gen_count));
+ gen_count++;
+ }
+
/* XXX magic */
assert(gen_count <= 8);
}
gen_count++;
}
+ /* WPOS. */
+ if (vs_outputs->wpos != ATTR_UNUSED) {
+ assert(tabi < 16);
+ stream_loc[tabi++] = 6 + gen_count;
+ gen_count++;
+ }
+
/* XXX magic */
assert(gen_count <= 8);
if (outputs->fog != ATTR_UNUSED) {
c->code->outputs[outputs->fog] = reg++;
}
+
+ /* WPOS. */
+ if (outputs->wpos != ATTR_UNUSED) {
+ c->code->outputs[outputs->wpos] = reg++;
+ }
+}
+
+static void r300_insert_wpos(struct r300_vertex_program_compiler* c,
+ struct r300_shader_semantics* outputs)
+{
+ int i, lastOutput = 0;
+
+ /* Find the max output index. */
+ lastOutput = MAX2(lastOutput, outputs->psize);
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ lastOutput = MAX2(lastOutput, outputs->color[i]);
+ lastOutput = MAX2(lastOutput, outputs->bcolor[i]);
+ }
+ for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
+ lastOutput = MAX2(lastOutput, outputs->generic[i]);
+ }
+ lastOutput = MAX2(lastOutput, outputs->fog);
+
+ /* Set WPOS after the last output. */
+ lastOutput++;
+ rc_copy_output(&c->Base, 0, lastOutput); /* out[lastOutput] = out[0]; */
+ outputs->wpos = lastOutput;
}
void r300_translate_vertex_shader(struct r300_context* r300,
{
struct r300_vertex_program_compiler compiler;
struct tgsi_to_rc ttr;
+ boolean use_wpos = TRUE;
/* Initialize. */
r300_shader_read_vs_outputs(&vs->info, &vs->outputs);
- r300_shader_vap_output_fmt(&vs->outputs, vs->hwfmt);
- r300_stream_locations_notcl(&vs->outputs, vs->stream_loc_notcl);
/* Setup the compiler */
rc_init(&compiler.Base);
r300_tgsi_to_rc(&ttr, vs->state.tokens);
- compiler.RequiredOutputs = ~(~0 << vs->info.num_outputs);
+ compiler.RequiredOutputs = ~(~0 << (vs->info.num_outputs+use_wpos));
compiler.SetHwInputOutput = &set_vertex_inputs_outputs;
+ /* Insert the WPOS output. */
+ if (use_wpos) {
+ r300_insert_wpos(&compiler, &vs->outputs);
+ }
+
+ r300_shader_vap_output_fmt(&vs->outputs, vs->hwfmt);
+ r300_stream_locations_notcl(&vs->outputs, vs->stream_loc_notcl);
+
/* Invoke the compiler */
r3xx_compile_vertex_program(&compiler);
if (compiler.Base.Error) {