+/* 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;
+ boolean any_bcolor_used = vs_outputs->bcolor[0] != ATTR_UNUSED ||
+ vs_outputs->bcolor[1] != ATTR_UNUSED;
+
+ /* 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 || any_bcolor_used ||
+ vs_outputs->color[1] != ATTR_UNUSED) {
+ stream_loc[tabi++] = 2 + i;
+ }
+ }
+
+ /* Back-face colors. */
+ if (any_bcolor_used) {
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ stream_loc[tabi++] = 4 + i;
+ }
+ }
+
+ /* Texture coordinates. */
+ gen_count = 0;
+ for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
+ if (vs_outputs->generic[i] != ATTR_UNUSED) {
+ assert(tabi < 16);
+ stream_loc[tabi++] = 6 + gen_count;
+ gen_count++;
+ }
+ }
+
+ /* Fog coordinates. */
+ if (vs_outputs->fog != ATTR_UNUSED) {
+ assert(tabi < 16);
+ stream_loc[tabi++] = 6 + gen_count;
+ gen_count++;
+ }
+
+ /* WPOS. */
+ if (vs_outputs->wpos != ATTR_UNUSED) {
+ assert(tabi < 16);
+ stream_loc[tabi++] = 6 + gen_count;
+ gen_count++;
+ }
+
+ for (; tabi < 16;) {
+ stream_loc[tabi++] = -1;
+ }
+}
+
+static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
+{
+ struct r300_vertex_shader * vs = c->UserData;
+ 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->inputs[i] = i;
+
+ /* Position. */
+ if (outputs->pos != ATTR_UNUSED) {
+ c->code->outputs[outputs->pos] = reg++;
+ } else {
+ assert(0);
+ }
+
+ /* Point size. */
+ if (outputs->psize != ATTR_UNUSED) {
+ 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++;
+ }
+ }
+
+ /* 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->generic[i] != ATTR_UNUSED) {
+ c->code->outputs[outputs->generic[i]] = reg++;
+ }
+ }
+
+ /* Fog coordinates. */
+ 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;
+}