1 files changed, 50 insertions, 31 deletions

diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index d8b210be539..854f8bfdaa6 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -1,6 +1,6 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.1
+ * Version:  7.2
  *
  * Copyright (C) 2004-2008  Brian Paul   All Rights Reserved.
  *
@@ -39,11 +39,11 @@
 #include "main/context.h"
 #include "main/hash.h"
 #include "main/macros.h"
-#include "program.h"
-#include "prog_parameter.h"
-#include "prog_print.h"
-#include "prog_statevars.h"
-#include "prog_uniform.h"
+#include "shader/program.h"
+#include "shader/prog_parameter.h"
+#include "shader/prog_print.h"
+#include "shader/prog_statevars.h"
+#include "shader/prog_uniform.h"
 #include "shader/shader_api.h"
 #include "shader/slang/slang_compile.h"
 #include "shader/slang/slang_link.h"
@@ -497,10 +497,14 @@ _mesa_get_attrib_location(GLcontext *ctx, GLuint program,
    if (!name)
       return -1;
 
-   if (shProg->Attributes) {
-      GLint i = _mesa_lookup_parameter_index(shProg->Attributes, -1, name);
-      if (i >= 0) {
-         return shProg->Attributes->Parameters[i].StateIndexes[0];
+   if (shProg->VertexProgram) {
+      const struct gl_program_parameter_list *attribs =
+         shProg->VertexProgram->Base.Attributes;
+      if (attribs) {
+         GLint i = _mesa_lookup_parameter_index(attribs, -1, name);
+         if (i >= 0) {
+            return attribs->Parameters[i].StateIndexes[0];
+         }
       }
    }
    return -1;
@@ -551,12 +555,10 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
       return;
    }
 
-   if (shProg->VertexProgram && oldIndex >= 0 && oldIndex != index) {
-      /* If the index changed, need to search/replace references to that attribute
-       * in the vertex program.
-       */
-      _slang_remap_attribute(&shProg->VertexProgram->Base, oldIndex, index);
-   }
+   /*
+    * Note that this attribute binding won't go into effect until
+    * glLinkProgram is called again.
+    */
 }
 
 
@@ -798,24 +800,29 @@ _mesa_get_active_attrib(GLcontext *ctx, GLuint program, GLuint index,
                         GLsizei maxLength, GLsizei *length, GLint *size,
                         GLenum *type, GLchar *nameOut)
 {
+   const struct gl_program_parameter_list *attribs = NULL;
    struct gl_shader_program *shProg;
 
    shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveAttrib");
    if (!shProg)
       return;
 
-   if (!shProg->Attributes || index >= shProg->Attributes->NumParameters) {
+   if (shProg->VertexProgram)
+      attribs = shProg->VertexProgram->Base.Attributes;
+
+   if (!attribs || index >= attribs->NumParameters) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveAttrib(index)");
       return;
    }
 
-   copy_string(nameOut, maxLength, length,
-               shProg->Attributes->Parameters[index].Name);
+   copy_string(nameOut, maxLength, length, attribs->Parameters[index].Name);
+
    if (size)
-      *size = shProg->Attributes->Parameters[index].Size
-         / sizeof_glsl_type(shProg->Attributes->Parameters[index].DataType);
+      *size = attribs->Parameters[index].Size
+         / sizeof_glsl_type(attribs->Parameters[index].DataType);
+
    if (type)
-      *type = shProg->Attributes->Parameters[index].DataType;
+      *type = attribs->Parameters[index].DataType;
 }
 
 
@@ -937,6 +944,7 @@ static void
 _mesa_get_programiv(GLcontext *ctx, GLuint program,
                     GLenum pname, GLint *params)
 {
+   const struct gl_program_parameter_list *attribs;
    struct gl_shader_program *shProg
       = _mesa_lookup_shader_program(ctx, program);
 
@@ -945,6 +953,11 @@ _mesa_get_programiv(GLcontext *ctx, GLuint program,
       return;
    }
 
+   if (shProg->VertexProgram)
+      attribs = shProg->VertexProgram->Base.Attributes;
+   else
+      attribs = NULL;
+
    switch (pname) {
    case GL_DELETE_STATUS:
       *params = shProg->DeletePending;
@@ -962,11 +975,10 @@ _mesa_get_programiv(GLcontext *ctx, GLuint program,
       *params = shProg->NumShaders;
       break;
    case GL_ACTIVE_ATTRIBUTES:
-      *params = shProg->Attributes ? shProg->Attributes->NumParameters : 0;
+      *params = attribs ? attribs->NumParameters : 0;
       break;
    case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH:
-      *params = _mesa_longest_parameter_name(shProg->Attributes,
-                                             PROGRAM_INPUT) + 1;
+      *params = _mesa_longest_parameter_name(attribs, PROGRAM_INPUT) + 1;
       break;
    case GL_ACTIVE_UNIFORMS:
       *params = shProg->Uniforms ? shProg->Uniforms->NumUniforms : 0;
@@ -1108,7 +1120,8 @@ get_matrix_dims(GLenum type, GLint *rows, GLint *cols)
 
 /**
  * Determine the number of rows and columns occupied by a uniform
- * according to its datatype.
+ * according to its datatype.  For non-matrix types (such as GL_FLOAT_VEC4),
+ * the number of rows = 1 and cols = number of elements in the vector.
  */
 static void
 get_uniform_rows_cols(const struct gl_program_parameter *p,
@@ -1117,11 +1130,17 @@ get_uniform_rows_cols(const struct gl_program_parameter *p,
    get_matrix_dims(p->DataType, rows, cols);
    if (*rows == 0 && *cols == 0) {
       /* not a matrix type, probably a float or vector */
-      *rows = p->Size / 4 + 1;
-      if (p->Size % 4 == 0)
-         *cols = 4;
-      else
-         *cols = p->Size % 4;
+      if (p->Size <= 4) {
+         *rows = 1;
+         *cols = p->Size;
+      }
+      else {
+         *rows = p->Size / 4 + 1;
+         if (p->Size % 4 == 0)
+            *cols = 4;
+         else
+            *cols = p->Size % 4;
+      }
    }
 }