5 files changed, 61 insertions, 15 deletions

diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index fbb9aa0e63..f7a1bb74a9 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -264,6 +264,12 @@ static void
 micro_rcp(union tgsi_exec_channel *dst,
           const union tgsi_exec_channel *src)
 {
+#if 0 /* for debugging */
+   assert(src->f[0] != 0.0f);
+   assert(src->f[1] != 0.0f);
+   assert(src->f[2] != 0.0f);
+   assert(src->f[3] != 0.0f);
+#endif
    dst->f[0] = 1.0f / src->f[0];
    dst->f[1] = 1.0f / src->f[1];
    dst->f[2] = 1.0f / src->f[2];
@@ -284,6 +290,12 @@ static void
 micro_rsq(union tgsi_exec_channel *dst,
           const union tgsi_exec_channel *src)
 {
+#if 0 /* for debugging */
+   assert(src->f[0] != 0.0f);
+   assert(src->f[1] != 0.0f);
+   assert(src->f[2] != 0.0f);
+   assert(src->f[3] != 0.0f);
+#endif
    dst->f[0] = 1.0f / sqrtf(fabsf(src->f[0]));
    dst->f[1] = 1.0f / sqrtf(fabsf(src->f[1]));
    dst->f[2] = 1.0f / sqrtf(fabsf(src->f[2]));
@@ -450,12 +462,20 @@ static const union tgsi_exec_channel ZeroVec =
    { { 0.0, 0.0, 0.0, 0.0 } };
 
 
-#define CHECK_INF_OR_NAN(chan) do {\
-      assert(!util_is_inf_or_nan((chan)->f[0]));\
-      assert(!util_is_inf_or_nan((chan)->f[1]));\
-      assert(!util_is_inf_or_nan((chan)->f[2]));\
-      assert(!util_is_inf_or_nan((chan)->f[3]));\
-   } while (0)
+/**
+ * Assert that none of the float values in 'chan' are infinite or NaN.
+ * NaN and Inf may occur normally during program execution and should
+ * not lead to crashes, etc.  But when debugging, it's helpful to catch
+ * them.
+ */
+static INLINE void
+check_inf_or_nan(const union tgsi_exec_channel *chan)
+{
+   assert(!util_is_inf_or_nan((chan)->f[0]));
+   assert(!util_is_inf_or_nan((chan)->f[1]));
+   assert(!util_is_inf_or_nan((chan)->f[2]));
+   assert(!util_is_inf_or_nan((chan)->f[3]));
+}
 
 
 #ifdef DEBUG
@@ -1219,8 +1239,9 @@ store_dest(struct tgsi_exec_machine *mach,
    int offset = 0;  /* indirection offset */
    int index;
 
-   if (dst_datatype == TGSI_EXEC_DATA_FLOAT) {
-      CHECK_INF_OR_NAN(chan);
+   /* for debugging */
+   if (0 && dst_datatype == TGSI_EXEC_DATA_FLOAT) {
+      check_inf_or_nan(chan);
    }
 
    /* There is an extra source register that indirectly subscripts
@@ -1478,7 +1499,7 @@ emit_primitive(struct tgsi_exec_machine *mach)
 }
 
 /*
- * Fetch a four texture samples using STR texture coordinates.
+ * Fetch four texture samples using STR texture coordinates.
  */
 static void
 fetch_texel( struct tgsi_sampler *sampler,
diff --git a/src/gallium/auxiliary/tgsi/tgsi_parse.c b/src/gallium/auxiliary/tgsi/tgsi_parse.c
index fd37fc3079..7e19e1fe36 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_parse.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_parse.c
@@ -284,3 +284,14 @@ tgsi_dup_tokens(const struct tgsi_token *tokens)
       memcpy(new_tokens, tokens, bytes);
    return new_tokens;
 }
+
+
+/**
+ * Allocate memory for num_tokens tokens.
+ */
+struct tgsi_token *
+tgsi_alloc_tokens(unsigned num_tokens)
+{
+   unsigned bytes = num_tokens * sizeof(struct tgsi_token);
+   return (struct tgsi_token *) MALLOC(bytes);
+}
diff --git a/src/gallium/auxiliary/tgsi/tgsi_parse.h b/src/gallium/auxiliary/tgsi/tgsi_parse.h
index 8150e3cd29..b45ccee2f6 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_parse.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_parse.h
@@ -130,6 +130,10 @@ tgsi_num_tokens(const struct tgsi_token *tokens);
 struct tgsi_token *
 tgsi_dup_tokens(const struct tgsi_token *tokens);
 
+struct tgsi_token *
+tgsi_alloc_tokens(unsigned num_tokens);
+
+
 #if defined __cplusplus
 }
 #endif
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
index 60a1cb1af4..27960bac22 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
@@ -104,6 +104,8 @@ struct ureg_program
 
    struct {
       unsigned index;
+      unsigned semantic_name;
+      unsigned semantic_index;
    } gs_input[UREG_MAX_INPUT];
    unsigned nr_gs_inputs;
 
@@ -326,10 +328,14 @@ ureg_DECL_vs_input( struct ureg_program *ureg,
 
 struct ureg_src
 ureg_DECL_gs_input(struct ureg_program *ureg,
-                   unsigned index)
+                   unsigned index,
+                   unsigned semantic_name,
+                   unsigned semantic_index)
 {
    if (ureg->nr_gs_inputs < UREG_MAX_INPUT) {
       ureg->gs_input[ureg->nr_gs_inputs].index = index;
+      ureg->gs_input[ureg->nr_gs_inputs].semantic_name = semantic_name;
+      ureg->gs_input[ureg->nr_gs_inputs].semantic_index = semantic_index;
       ureg->nr_gs_inputs++;
    } else {
       set_bad(ureg);
@@ -1252,10 +1258,12 @@ static void emit_decls( struct ureg_program *ureg )
       }
    } else {
       for (i = 0; i < ureg->nr_gs_inputs; i++) {
-         emit_decl_range(ureg, 
-                         TGSI_FILE_INPUT, 
-                         ureg->gs_input[i].index,
-                         1);
+         emit_decl(ureg,
+                   TGSI_FILE_INPUT,
+                   ureg->gs_input[i].index,
+                   ureg->gs_input[i].semantic_name,
+                   ureg->gs_input[i].semantic_index,
+                   TGSI_INTERPOLATE_CONSTANT);
       }
    }
 
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.h b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
index 6198ca3464..6be66d0694 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
@@ -161,7 +161,9 @@ ureg_DECL_vs_input( struct ureg_program *,
 
 struct ureg_src
 ureg_DECL_gs_input(struct ureg_program *,
-                   unsigned index);
+                   unsigned index,
+                   unsigned semantic_name,
+                   unsigned semantic_index);
 
 struct ureg_src
 ureg_DECL_system_value(struct ureg_program *,