X-Git-Url: https://git.libre-soc.org/?p=mesa.git;a=blobdiff_plain;f=src%2Fgallium%2Fdrivers%2Fi915%2Fi915_state_derived.c;h=7ad88a1ce01b2c78f0234464a3cbafd9eb97b96b;hp=1d4026a214e9d9e6504d3e4432052a78efe82b09;hb=877128505431adaf817dc8069172ebe4a1cdf5d8;hpb=695cc370a280a637f411f5ff3877b3fd1c05e424

diff --git a/src/gallium/drivers/i915/i915_state_derived.c b/src/gallium/drivers/i915/i915_state_derived.c
index 1d4026a214e..7ad88a1ce01 100644
--- a/src/gallium/drivers/i915/i915_state_derived.c
+++ b/src/gallium/drivers/i915/i915_state_derived.c
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2003 VMware, Inc.
  * All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -33,8 +33,21 @@
 #include "i915_context.h"
 #include "i915_state.h"
 #include "i915_debug.h"
+#include "i915_fpc.h"
 #include "i915_reg.h"
 
+static uint find_mapping(const struct i915_fragment_shader* fs, int unit)
+{
+   int i;
+   for (i = 0; i < I915_TEX_UNITS ; i++)
+   {
+      if (fs->generic_mapping[i] == unit)
+         return i;
+   }
+   debug_printf("Mapping not found\n");
+   return 0;
+}
+
 
 
 /***********************************************************************
@@ -46,12 +59,12 @@ static void calculate_vertex_layout(struct i915_context *i915)
    const struct i915_fragment_shader *fs = i915->fs;
    const enum interp_mode colorInterp = i915->rasterizer->color_interp;
    struct vertex_info vinfo;
-   boolean texCoords[8], colors[2], fog, needW;
+   boolean texCoords[I915_TEX_UNITS], colors[2], fog, needW, face;
    uint i;
    int src;
 
    memset(texCoords, 0, sizeof(texCoords));
-   colors[0] = colors[1] = fog = needW = FALSE;
+   colors[0] = colors[1] = fog = needW = face = FALSE;
    memset(&vinfo, 0, sizeof(vinfo));
 
    /* Determine which fragment program inputs are needed.  Setup HW vertex
@@ -60,29 +73,37 @@ static void calculate_vertex_layout(struct i915_context *i915)
    for (i = 0; i < fs->info.num_inputs; i++) {
       switch (fs->info.input_semantic_name[i]) {
       case TGSI_SEMANTIC_POSITION:
+         {
+            uint unit = I915_SEMANTIC_POS;
+            texCoords[find_mapping(fs, unit)] = TRUE;
+         }
          break;
       case TGSI_SEMANTIC_COLOR:
          assert(fs->info.input_semantic_index[i] < 2);
          colors[fs->info.input_semantic_index[i]] = TRUE;
          break;
       case TGSI_SEMANTIC_GENERIC:
-         /* usually a texcoord */
          {
-            const uint unit = fs->info.input_semantic_index[i];
-            assert(unit < 8);
-            texCoords[unit] = TRUE;
+            /* texcoords/varyings/other generic */
+            uint unit = fs->info.input_semantic_index[i];
+
+            texCoords[find_mapping(fs, unit)] = TRUE;
             needW = TRUE;
          }
          break;
       case TGSI_SEMANTIC_FOG:
          fog = TRUE;
          break;
+      case TGSI_SEMANTIC_FACE:
+         face = TRUE;
+         break;
       default:
+         debug_printf("Unknown input type %d\n", fs->info.input_semantic_name[i]);
          assert(0);
       }
    }
 
-   
+
    /* pos */
    src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_POSITION, 0);
    if (needW) {
@@ -120,12 +141,12 @@ static void calculate_vertex_layout(struct i915_context *i915)
       vinfo.hwfmt[0] |= S4_VFMT_FOG_PARAM;
    }
 
-   /* texcoords */
-   for (i = 0; i < 8; i++) {
+   /* texcoords/varyings */
+   for (i = 0; i < I915_TEX_UNITS; i++) {
       uint hwtc;
       if (texCoords[i]) {
          hwtc = TEXCOORDFMT_4D;
-         src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_GENERIC, i);
+         src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_GENERIC, fs->generic_mapping[i]);
          draw_emit_vertex_attr(&vinfo, EMIT_4F, INTERP_PERSPECTIVE, src);
       }
       else {
@@ -134,6 +155,20 @@ static void calculate_vertex_layout(struct i915_context *i915)
       vinfo.hwfmt[1] |= hwtc << (i * 4);
    }
 
+   /* front/back face */
+   if (face) {
+      uint slot = find_mapping(fs, I915_SEMANTIC_FACE);
+      debug_printf("Front/back face is broken\n");
+      /* XXX Because of limitations in the draw module, currently src will be 0
+       * for SEMANTIC_FACE, so this aliases to POS. We need to fix in the draw
+       * module by adding an extra shader output.
+       */
+      src = draw_find_shader_output(i915->draw, TGSI_SEMANTIC_FACE, 0);
+      draw_emit_vertex_attr(&vinfo, EMIT_1F, INTERP_CONSTANT, src);
+      vinfo.hwfmt[1] &= ~(TEXCOORDFMT_NOT_PRESENT << (slot * 4));
+      vinfo.hwfmt[1] |= TEXCOORDFMT_1D << (slot * 4);
+   }
+
    draw_compute_vertex_size(&vinfo);
 
    if (memcmp(&i915->current.vertex_info, &vinfo, sizeof(vinfo))) {
@@ -165,6 +200,7 @@ static struct i915_tracked_state *atoms[] = {
    &i915_hw_dynamic,
    &i915_hw_fs,
    &i915_hw_framebuffer,
+   &i915_hw_dst_buf_vars,
    &i915_hw_constants,
    NULL,
 };