Mesa (master): tgsi: add support for 1D/2D texture arrays

[Brian Paul]

Module: Mesa
Branch: master
Commit: c0d941877b410b2402ed853d1d33b0664a3d1445
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c0d941877b410b2402ed853d1d33b0664a3d1445

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Jan 25 20:25:50 2011 -0700

tgsi: add support for 1D/2D texture arrays

---

 src/gallium/auxiliary/tgsi/tgsi_dump.c     |    4 ++-
 src/gallium/auxiliary/tgsi/tgsi_exec.c     |   30 ++++++++++++++++++++++++++++
 src/gallium/auxiliary/tgsi/tgsi_util.c     |    7 +++++-
 src/gallium/include/pipe/p_shader_tokens.h |    4 ++-
 4 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_dump.c b/src/gallium/auxiliary/tgsi/tgsi_dump.c
index e97698d..c126620 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_dump.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_dump.c
@@ -158,7 +158,9 @@ tgsi_texture_names[TGSI_TEXTURE_COUNT] =
    "RECT",
    "SHADOW1D",
    "SHADOW2D",
-   "SHADOWRECT"
+   "SHADOWRECT",
+   "1DARRAY",
+   "2DARRAY"
 };
 
 const char *tgsi_property_names[TGSI_PROPERTY_COUNT] =
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index 959d978..cbb090b 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -1750,6 +1750,36 @@ exec_tex(struct tgsi_exec_machine *mach,
                   &r[0], &r[1], &r[2], &r[3]);  /* outputs */
       break;
 
+   case TGSI_TEXTURE_1D_ARRAY:
+      FETCH(&r[0], 0, CHAN_X);
+      FETCH(&r[1], 0, CHAN_Y);
+
+      if (modifier == TEX_MODIFIER_PROJECTED) {
+         micro_div(&r[0], &r[0], &r[3]);
+      }
+
+      fetch_texel(mach->Samplers[unit],
+                  &r[0], &r[1], &r[2], lod,     /* S, T, P, LOD */
+                  control,
+                  &r[0], &r[1], &r[2], &r[3]);  /* outputs */
+      break;
+
+   case TGSI_TEXTURE_2D_ARRAY:
+      FETCH(&r[0], 0, CHAN_X);
+      FETCH(&r[1], 0, CHAN_Y);
+      FETCH(&r[2], 0, CHAN_Z);
+
+      if (modifier == TEX_MODIFIER_PROJECTED) {
+         micro_div(&r[0], &r[0], &r[3]);
+         micro_div(&r[1], &r[1], &r[3]);
+      }
+
+      fetch_texel(mach->Samplers[unit],
+                  &r[0], &r[1], &r[2], lod,     /* S, T, P, LOD */
+                  control,
+                  &r[0], &r[1], &r[2], &r[3]);  /* outputs */
+      break;
+
    case TGSI_TEXTURE_3D:
    case TGSI_TEXTURE_CUBE:
       FETCH(&r[0], 0, CHAN_X);
diff --git a/src/gallium/auxiliary/tgsi/tgsi_util.c b/src/gallium/auxiliary/tgsi/tgsi_util.c
index 08e7e89..aa9a886 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_util.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_util.c
@@ -280,7 +280,12 @@ tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst,
          case TGSI_TEXTURE_CUBE:
             read_mask = TGSI_WRITEMASK_XYZ;
             break;
-
+         case TGSI_TEXTURE_1D_ARRAY:
+            read_mask = TGSI_WRITEMASK_XY;
+            break;
+         case TGSI_TEXTURE_2D_ARRAY:
+            read_mask = TGSI_WRITEMASK_XYZ;
+            break;
          default:
             assert(0);
             read_mask = 0;
diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h
index 6e5a48b..d3a3632 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -430,7 +430,9 @@ struct tgsi_instruction_label
 #define TGSI_TEXTURE_SHADOW1D       6
 #define TGSI_TEXTURE_SHADOW2D       7
 #define TGSI_TEXTURE_SHADOWRECT     8
-#define TGSI_TEXTURE_COUNT          9
+#define TGSI_TEXTURE_1D_ARRAY       9
+#define TGSI_TEXTURE_2D_ARRAY      10
+#define TGSI_TEXTURE_COUNT         11
 
 struct tgsi_instruction_texture
 {