* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_vs.h"
+#include "r300_fs.h"
#include "r300_context.h"
#include "r300_screen.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_parse.h"
+#include "tgsi/tgsi_ureg.h"
#include "radeon_compiler.h"
break;
case TGSI_SEMANTIC_COLOR:
- assert(index <= ATTR_COLOR_COUNT);
+ assert(index < ATTR_COLOR_COUNT);
vs_outputs->color[index] = i;
break;
case TGSI_SEMANTIC_BCOLOR:
- assert(index <= ATTR_COLOR_COUNT);
+ assert(index < ATTR_COLOR_COUNT);
vs_outputs->bcolor[index] = i;
break;
case TGSI_SEMANTIC_GENERIC:
- assert(index <= ATTR_GENERIC_COUNT);
+ assert(index < ATTR_GENERIC_COUNT);
vs_outputs->generic[index] = i;
break;
vs_outputs->fog = i;
break;
+ case TGSI_SEMANTIC_EDGEFLAG:
+ assert(index == 0);
+ fprintf(stderr, "r300 VP: cannot handle edgeflag output.\n");
+ break;
+
default:
- assert(0);
+ fprintf(stderr, "r300 VP: unknown vertex output semantic: %i.\n",
+ info->output_semantic_name[i]);
}
}
+
+ /* WPOS is a straight copy of POSITION and it's always emitted. */
+ vs_outputs->wpos = i;
}
-static void r300_shader_vap_output_fmt(
- struct r300_shader_semantics* vs_outputs,
- uint* hwfmt)
+/* This function sets up:
+ * - VAP mapping, which maps VS registers to output semantics and
+ * at the same time it indicates which attributes are enabled and should
+ * be rasterized.
+ * - Stream mapping to VS outputs if TCL is not present. */
+static void r300_init_vs_output_mapping(struct r300_vertex_shader* vs)
{
- int i, gen_count;
-
- /* Do the actual vertex_info setup.
- *
- * vertex_info has four uints of hardware-specific data in it.
- * vinfo.hwfmt[0] is R300_VAP_VTX_STATE_CNTL
- * vinfo.hwfmt[1] is R300_VAP_VSM_VTX_ASSM
- * vinfo.hwfmt[2] is R300_VAP_OUTPUT_VTX_FMT_0
- * vinfo.hwfmt[3] is R300_VAP_OUTPUT_VTX_FMT_1 */
+ struct r300_shader_semantics* vs_outputs = &vs->outputs;
+ struct r300_vap_output_state *vap_out = &vs->vap_out;
+ int *stream_loc = vs->stream_loc_notcl;
+ int i, gen_count, tabi = 0;
+ boolean any_bcolor_used = vs_outputs->bcolor[0] != ATTR_UNUSED ||
+ vs_outputs->bcolor[1] != ATTR_UNUSED;
- hwfmt[0] = 0x5555; /* XXX this is classic Mesa bonghits */
+ vap_out->vap_vtx_state_cntl = 0x5555; /* XXX this is classic Mesa bonghits */
/* Position. */
if (vs_outputs->pos != ATTR_UNUSED) {
- hwfmt[1] |= R300_INPUT_CNTL_POS;
- hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT;
+ vap_out->vap_vsm_vtx_assm |= R300_INPUT_CNTL_POS;
+ vap_out->vap_out_vtx_fmt[0] |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT;
+
+ stream_loc[tabi++] = 0;
} else {
assert(0);
}
/* Point size. */
if (vs_outputs->psize != ATTR_UNUSED) {
- hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT;
- }
-
- /* Colors. */
- for (i = 0; i < ATTR_COLOR_COUNT; i++) {
- if (vs_outputs->color[i] != ATTR_UNUSED) {
- hwfmt[1] |= R300_INPUT_CNTL_COLOR;
- hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << i;
- }
- }
-
- /* XXX Back-face colors. */
-
- /* Texture coordinates. */
- gen_count = 0;
- for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
- if (vs_outputs->generic[i] != ATTR_UNUSED) {
- hwfmt[1] |= (R300_INPUT_CNTL_TC0 << gen_count);
- hwfmt[3] |= (4 << (3 * gen_count));
- gen_count++;
- }
- }
-
- /* Fog coordinates. */
- if (vs_outputs->fog != ATTR_UNUSED) {
- hwfmt[1] |= (R300_INPUT_CNTL_TC0 << gen_count);
- hwfmt[3] |= (4 << (3 * gen_count));
- gen_count++;
- }
-
- /* XXX magic */
- assert(gen_count <= 8);
-}
-
-/* Sets up stream mapping to equivalent VS outputs if TCL is bypassed
- * or isn't present. */
-static void r300_stream_locations_notcl(
- struct r300_shader_semantics* vs_outputs,
- int* stream_loc)
-{
- int i, tabi = 0, gen_count;
+ vap_out->vap_out_vtx_fmt[0] |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT;
- /* Position. */
- stream_loc[tabi++] = 0;
-
- /* Point size. */
- if (vs_outputs->psize != ATTR_UNUSED) {
stream_loc[tabi++] = 1;
}
/* Colors. */
for (i = 0; i < ATTR_COLOR_COUNT; i++) {
- if (vs_outputs->color[i] != ATTR_UNUSED) {
+ if (vs_outputs->color[i] != ATTR_UNUSED || any_bcolor_used ||
+ vs_outputs->color[1] != ATTR_UNUSED) {
+ vap_out->vap_vsm_vtx_assm |= R300_INPUT_CNTL_COLOR;
+ vap_out->vap_out_vtx_fmt[0] |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << i;
+
stream_loc[tabi++] = 2 + i;
}
}
/* Back-face colors. */
- for (i = 0; i < ATTR_COLOR_COUNT; i++) {
- if (vs_outputs->bcolor[i] != ATTR_UNUSED) {
+ if (any_bcolor_used) {
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ vap_out->vap_vsm_vtx_assm |= R300_INPUT_CNTL_COLOR;
+ vap_out->vap_out_vtx_fmt[0] |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << (2+i);
+
stream_loc[tabi++] = 4 + i;
}
}
/* Texture coordinates. */
gen_count = 0;
- for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
- if (vs_outputs->bcolor[i] != ATTR_UNUSED) {
- assert(tabi < 16);
+ for (i = 0; i < ATTR_GENERIC_COUNT && gen_count < 8; i++) {
+ if (vs_outputs->generic[i] != ATTR_UNUSED) {
+ vap_out->vap_vsm_vtx_assm |= (R300_INPUT_CNTL_TC0 << gen_count);
+ vap_out->vap_out_vtx_fmt[1] |= (4 << (3 * gen_count));
+
stream_loc[tabi++] = 6 + gen_count;
gen_count++;
}
}
/* Fog coordinates. */
- if (vs_outputs->fog != ATTR_UNUSED) {
- assert(tabi < 16);
+ if (gen_count < 8 && vs_outputs->fog != ATTR_UNUSED) {
+ vap_out->vap_vsm_vtx_assm |= (R300_INPUT_CNTL_TC0 << gen_count);
+ vap_out->vap_out_vtx_fmt[1] |= (4 << (3 * gen_count));
+
stream_loc[tabi++] = 6 + gen_count;
gen_count++;
}
- /* XXX magic */
- assert(gen_count <= 8);
+ /* WPOS. */
+ if (gen_count < 8) {
+ vs->wpos_tex_output = gen_count;
+ stream_loc[tabi++] = 6 + gen_count;
+ } else {
+ vs_outputs->wpos = ATTR_UNUSED;
+ }
for (; tabi < 16;) {
stream_loc[tabi++] = -1;
struct r300_shader_semantics* outputs = &vs->outputs;
struct tgsi_shader_info* info = &vs->info;
int i, reg = 0;
+ boolean any_bcolor_used = outputs->bcolor[0] != ATTR_UNUSED ||
+ outputs->bcolor[1] != ATTR_UNUSED;
/* Fill in the input mapping */
for (i = 0; i < info->num_inputs; i++)
c->code->outputs[outputs->psize] = reg++;
}
+ /* If we're writing back facing colors we need to send
+ * four colors to make front/back face colors selection work.
+ * If the vertex program doesn't write all 4 colors, lets
+ * pretend it does by skipping output index reg so the colors
+ * get written into appropriate output vectors.
+ */
+
/* Colors. */
for (i = 0; i < ATTR_COLOR_COUNT; i++) {
if (outputs->color[i] != ATTR_UNUSED) {
c->code->outputs[outputs->color[i]] = reg++;
+ } else if (any_bcolor_used ||
+ outputs->color[1] != ATTR_UNUSED) {
+ reg++;
}
}
- /* XXX Back-face colors. */
+ /* Back-face colors. */
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ if (outputs->bcolor[i] != ATTR_UNUSED) {
+ c->code->outputs[outputs->bcolor[i]] = reg++;
+ } else if (any_bcolor_used) {
+ reg++;
+ }
+ }
/* Texture coordinates. */
for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
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_dummy_vertex_shader(
+ struct r300_context* r300,
+ struct r300_vertex_shader* shader)
+{
+ struct pipe_shader_state state;
+ struct ureg_program *ureg;
+ struct ureg_dst dst;
+ struct ureg_src imm;
+
+ /* Make a simple vertex shader which outputs (0, 0, 0, 1),
+ * effectively rendering nothing. */
+ ureg = ureg_create(TGSI_PROCESSOR_VERTEX);
+ dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0);
+ imm = ureg_imm4f(ureg, 0, 0, 0, 1);
+
+ ureg_MOV(ureg, dst, imm);
+ ureg_END(ureg);
+
+ state.tokens = ureg_finalize(ureg);
+
+ shader->dummy = TRUE;
+ r300_translate_vertex_shader(r300, shader, state.tokens);
+
+ ureg_destroy(ureg);
}
void r300_translate_vertex_shader(struct r300_context* r300,
- struct r300_vertex_shader* vs)
+ struct r300_vertex_shader* vs,
+ const struct tgsi_token *tokens)
{
struct r300_vertex_program_compiler compiler;
struct tgsi_to_rc ttr;
- /* Initialize. */
+ tgsi_scan_shader(tokens, &vs->info);
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);
+ r300_init_vs_output_mapping(vs);
/* Setup the compiler */
rc_init(&compiler.Base);
if (compiler.Base.Debug) {
debug_printf("r300: Initial vertex program\n");
- tgsi_dump(vs->state.tokens, 0);
+ tgsi_dump(tokens, 0);
}
/* Translate TGSI to our internal representation */
ttr.compiler = &compiler.Base;
ttr.info = &vs->info;
+ ttr.use_half_swizzles = FALSE;
+
+ r300_tgsi_to_rc(&ttr, tokens);
- r300_tgsi_to_rc(&ttr, vs->state.tokens);
+ compiler.RequiredOutputs =
+ ~(~0 << (vs->info.num_outputs +
+ (vs->outputs.wpos != ATTR_UNUSED ? 1 : 0)));
- compiler.RequiredOutputs = ~(~0 << vs->info.num_outputs);
compiler.SetHwInputOutput = &set_vertex_inputs_outputs;
+ /* Insert the WPOS output. */
+ if (vs->outputs.wpos != ATTR_UNUSED) {
+ rc_copy_output(&compiler.Base, 0, vs->outputs.wpos);
+ }
+
/* Invoke the compiler */
r3xx_compile_vertex_program(&compiler);
if (compiler.Base.Error) {
/* XXX We should fallback using Draw. */
- fprintf(stderr, "r300 VP: Compiler error\n");
- abort();
+ fprintf(stderr, "r300 VP: Compiler error:\n%sUsing a dummy shader"
+ " instead.\n", compiler.Base.ErrorMsg);
+
+ if (vs->dummy) {
+ fprintf(stderr, "r300 VP: Cannot compile the dummy shader! "
+ "Giving up...\n");
+ abort();
+ }
+
+ rc_destroy(&compiler.Base);
+ r300_dummy_vertex_shader(r300, vs);
+ return;
}
+ /* Initialize numbers of constants for each type. */
+ vs->externals_count = ttr.immediate_offset;
+ vs->immediates_count = vs->code.constants.Count - vs->externals_count;
+
/* And, finally... */
rc_destroy(&compiler.Base);
- vs->translated = TRUE;
+}
+
+boolean r300_vertex_shader_setup_wpos(struct r300_context* r300)
+{
+ struct r300_vertex_shader* vs = r300->vs_state.state;
+ struct r300_vap_output_state *vap_out = &vs->vap_out;
+ int tex_output = vs->wpos_tex_output;
+ uint32_t tex_fmt = R300_INPUT_CNTL_TC0 << tex_output;
+
+ if (vs->outputs.wpos == ATTR_UNUSED) {
+ return FALSE;
+ }
+
+ if (r300_fs(r300)->shader->inputs.wpos != ATTR_UNUSED) {
+ /* Enable WPOS in VAP. */
+ if (!(vap_out->vap_vsm_vtx_assm & tex_fmt)) {
+ vap_out->vap_vsm_vtx_assm |= tex_fmt;
+ vap_out->vap_out_vtx_fmt[1] |= (4 << (3 * tex_output));
+ return TRUE;
+ }
+ } else {
+ /* Disable WPOS in VAP. */
+ if (vap_out->vap_vsm_vtx_assm & tex_fmt) {
+ vap_out->vap_vsm_vtx_assm &= ~tex_fmt;
+ vap_out->vap_out_vtx_fmt[1] &= ~(4 << (3 * tex_output));
+ return TRUE;
+ }
+ }
+ return FALSE;
}
projects / mesa.git / blobdiff