r300g: Begin separating HW TCL and SW TCL state and setup.

This patch removes draw_context entirely from the HW TCL path and cleans up
a few other things along the way. Hopefully, nothing got broken.

Thanks to Marek Olšák for testing, review, and pointing out my bugs. :3

1 files changed, 94 insertions, 98 deletions

diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c
index b4d0eeaf8c5..5aa4166d939 100644
--- a/src/gallium/drivers/r300/r300_state_derived.c
+++ b/src/gallium/drivers/r300/r300_state_derived.c
@@ -65,84 +65,43 @@ int r300_shader_key_compare(void* key1, void* key2) {
 static void r300_vs_tab_routes(struct r300_context* r300,
                                struct r300_vertex_info* vformat)
 {
-    struct r300_screen* r300screen = r300_screen(r300->context.screen);
     struct vertex_info* vinfo = &vformat->vinfo;
     int* tab = vformat->vs_tab;
     boolean pos = FALSE, psize = FALSE, fog = FALSE;
     int i, texs = 0, cols = 0;
-    struct tgsi_shader_info* info;
-
-    if (r300screen->caps->has_tcl) {
-        /* Use vertex shader to determine required routes. */
-        info = &r300->vs->info;
-    } else {
-        /* Use fragment shader to determine required routes. */
-        info = &r300->fs->info;
-    }
+    struct tgsi_shader_info* info = &r300->fs->info;
 
-    assert(info->num_inputs <= 16);
+    /* XXX One day we should figure out how to handle a different number of
+     * VS outputs and FS inputs, as well as a different number of vertex streams
+     * and VS inputs. It's definitely one of the sources of hardlocks. */
 
-    if (!r300screen->caps->has_tcl || !r300->rs_state->enable_vte)
-    {
-        for (i = 0; i < info->num_inputs; i++) {
-            switch (r300->vs->code.inputs[i]) {
-                case TGSI_SEMANTIC_POSITION:
-                    pos = TRUE;
-                    tab[i] = 0;
-                    break;
-                case TGSI_SEMANTIC_COLOR:
-                    tab[i] = 2 + cols;
-                    cols++;
-                    break;
-                case TGSI_SEMANTIC_PSIZE:
-                    assert(psize == FALSE);
-                    psize = TRUE;
-                    tab[i] = 15;
-                    break;
-                case TGSI_SEMANTIC_FOG:
-                    assert(fog == FALSE);
-                    fog = TRUE;
-                    /* Fall through */
-                case TGSI_SEMANTIC_GENERIC:
-                    tab[i] = 6 + texs;
-                    texs++;
-                    break;
-                default:
-                    debug_printf("r300: Unknown vertex input %d\n",
-                        info->input_semantic_name[i]);
-                    break;
-            }
-        }
-    }
-    else
-    {
-        /* Just copy vert attribs over as-is. */
-        for (i = 0; i < info->num_inputs; i++) {
-            tab[i] = i;
-        }
-
-        for (i = 0; i < info->num_outputs; i++) {
-            switch (info->output_semantic_name[i]) {
-                case TGSI_SEMANTIC_POSITION:
-                    pos = TRUE;
-                    break;
-                case TGSI_SEMANTIC_COLOR:
-                    cols++;
-                    break;
-                case TGSI_SEMANTIC_PSIZE:
-                    psize = TRUE;
-                    break;
-                case TGSI_SEMANTIC_FOG:
-                    fog = TRUE;
-                    /* Fall through */
-                case TGSI_SEMANTIC_GENERIC:
-                    texs++;
-                    break;
-                default:
-                    debug_printf("r300: Unknown vertex output %d\n",
-                        info->output_semantic_name[i]);
-                    break;
-            }
+    for (i = 0; i < info->num_inputs; i++) {
+        switch (info->input_semantic_name[i]) {
+            case TGSI_SEMANTIC_POSITION:
+                pos = TRUE;
+                tab[i] = 0;
+                break;
+            case TGSI_SEMANTIC_COLOR:
+                tab[i] = 2 + cols;
+                cols++;
+                break;
+            case TGSI_SEMANTIC_PSIZE:
+                assert(psize == FALSE);
+                psize = TRUE;
+                tab[i] = 15;
+                break;
+            case TGSI_SEMANTIC_FOG:
+                assert(fog == FALSE);
+                fog = TRUE;
+                /* Fall through */
+            case TGSI_SEMANTIC_GENERIC:
+                tab[i] = 6 + texs;
+                texs++;
+                break;
+            default:
+                debug_printf("r300: Unknown vertex input %d\n",
+                    info->input_semantic_name[i]);
+                break;
         }
     }
 
@@ -161,8 +120,7 @@ static void r300_vs_tab_routes(struct r300_context* r300,
 
     /* We need to add vertex position attribute only for SW TCL case,
      * for HW TCL case it could be generated by vertex shader */
-    if (!pos && !r300screen->caps->has_tcl) {
-        debug_printf("r300: Forcing vertex position attribute emit...\n");
+    if (!pos) {
         /* Make room for the position attribute
          * at the beginning of the tab. */
         for (i = 15; i > 0; i--) {
@@ -230,31 +188,66 @@ static void r300_vs_tab_routes(struct r300_context* r300,
 static void r300_vertex_psc(struct r300_context* r300,
                             struct r300_vertex_info* vformat)
 {
-    struct r300_screen* r300screen = r300_screen(r300->context.screen);
-    struct vertex_info* vinfo = &vformat->vinfo;
-    int* tab = vformat->vs_tab;
     uint16_t type, swizzle;
     enum pipe_format format;
-    unsigned i, attrib_count;
+    unsigned i;
 
     /* Vertex shaders have no semantics on their inputs,
-     * so PSC should just route stuff based on their info,
+     * so PSC should just route stuff based on the vertex elements,
      * and not on attrib information. */
-    if (r300screen->caps->has_tcl) {
-        attrib_count = r300->vs->info.num_inputs;
-        DBG(r300, DBG_DRAW, "r300: routing %d attribs in psc for vs\n",
-                attrib_count);
-    } else {
-        attrib_count = vinfo->num_attribs;
-        DBG(r300, DBG_DRAW, "r300: attrib count: %d\n", attrib_count);
-        for (i = 0; i < attrib_count; i++) {
-            DBG(r300, DBG_DRAW, "r300: attrib: offset %d, interp %d, size %d,"
-                   " tab %d\n", vinfo->attrib[i].src_index,
-                   vinfo->attrib[i].interp_mode, vinfo->attrib[i].emit,
-                   tab[i]);
+    DBG(r300, DBG_DRAW, "r300: vs expects %d attribs, routing %d elements"
+            " in psc\n",
+            r300->vs->info.num_inputs,
+            r300->vertex_element_count);
+
+    for (i = 0; i < r300->vertex_element_count; i++) {
+        format = r300->vertex_element[i].src_format;
+
+        type = r300_translate_vertex_data_type(format) |
+            (i << R300_DST_VEC_LOC_SHIFT);
+        swizzle = r300_translate_vertex_data_swizzle(format);
+
+        if (i % 2) {
+            vformat->vap_prog_stream_cntl[i >> 1] |= type << 16;
+            vformat->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 16;
+        } else {
+            vformat->vap_prog_stream_cntl[i >> 1] |= type;
+            vformat->vap_prog_stream_cntl_ext[i >> 1] |= swizzle;
         }
     }
 
+
+    assert(i <= 15);
+
+    /* Set the last vector in the PSC. */
+    if (i) {
+        i -= 1;
+    }
+    vformat->vap_prog_stream_cntl[i >> 1] |=
+        (R300_LAST_VEC << (i & 1 ? 16 : 0));
+}
+
+/* Update the PSC tables for SW TCL, using Draw. */
+static void r300_swtcl_vertex_psc(struct r300_context* r300,
+                                  struct r300_vertex_info* vformat)
+{
+    struct vertex_info* vinfo = &vformat->vinfo;
+    int* tab = vformat->vs_tab;
+    uint16_t type, swizzle;
+    enum pipe_format format;
+    unsigned i, attrib_count;
+
+    /* For each Draw attribute, route it to the fragment shader according
+     * to the tab. */
+    attrib_count = vinfo->num_attribs;
+    DBG(r300, DBG_DRAW, "r300: attrib count: %d\n", attrib_count);
+    for (i = 0; i < attrib_count; i++) {
+        DBG(r300, DBG_DRAW, "r300: attrib: offset %d, interp %d, size %d,"
+               " tab %d\n", vinfo->attrib[i].src_index,
+               vinfo->attrib[i].interp_mode, vinfo->attrib[i].emit,
+               tab[i]);
+    }
+
     for (i = 0; i < attrib_count; i++) {
         /* Make sure we have a proper destination for our attribute. */
         assert(tab[i] != -1);
@@ -272,12 +265,10 @@ static void r300_vertex_psc(struct r300_context* r300,
         /* Add the attribute to the PSC table. */
         if (i & 1) {
             vformat->vap_prog_stream_cntl[i >> 1] |= type << 16;
-
             vformat->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 16;
         } else {
-            vformat->vap_prog_stream_cntl[i >> 1] |= type <<  0;
-
-            vformat->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 0;
+            vformat->vap_prog_stream_cntl[i >> 1] |= type;
+            vformat->vap_prog_stream_cntl_ext[i >> 1] |= swizzle;
         }
     }
 
@@ -505,7 +496,13 @@ static void r300_update_derived_shader_state(struct r300_context* r300)
     }
 
     r300_vs_tab_routes(r300, vformat);
-    r300_vertex_psc(r300, vformat);
+
+    if (r300screen->caps->has_tcl) {
+        r300_vertex_psc(r300, vformat);
+    } else {
+        r300_swtcl_vertex_psc(r300, vformat);
+    }
+
     r300_update_fs_tab(r300, vformat);
 
     r300_update_rs_block(r300, rs_block);
@@ -553,8 +550,7 @@ static void r300_update_ztop(struct r300_context* r300)
 
 void r300_update_derived_state(struct r300_context* r300)
 {
-    /* XXX */
-    if (TRUE || r300->dirty_state &
+    if (r300->dirty_state &
         (R300_NEW_FRAGMENT_SHADER | R300_NEW_VERTEX_SHADER)) {
         r300_update_derived_shader_state(r300);
     }