From 1b4f04124ab1cf1c9df94277f9da69956991d9e8 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Thu, 25 Mar 2010 13:19:13 -0700
Subject: [PATCH] Fix matrix dimensioning

Newb GL mistake: matrices in GL are column-major.  This means that
vector_elements is the number of rows.  Making these changes causes
matrix-08.glsl to pass.
---
 builtin_types.sh |  2 +-
 glsl_types.h     | 16 ++++++++--------
 ir.cpp           |  2 +-
 ir_function.cpp  |  2 +-
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/builtin_types.sh b/builtin_types.sh
index 6dd0ea7..299a4ce 100755
--- a/builtin_types.sh
+++ b/builtin_types.sh
@@ -275,7 +275,7 @@ gen_header "120"
 for c in 2 3 4; do
     for r in 2 3 4; do
 	if [ $c -ne $r ]; then
-	    gen_integral_type "mat${c}x${r}" "GLSL_TYPE_FLOAT" $c $r
+	    gen_integral_type "mat${c}x${r}" "GLSL_TYPE_FLOAT" $r $c
 	fi
     done
 done
diff --git a/glsl_types.h b/glsl_types.h
index e1768d5..96c9a1b 100644
--- a/glsl_types.h
+++ b/glsl_types.h
@@ -75,7 +75,7 @@ struct glsl_type {
 				*/
 
    unsigned vector_elements:3; /**< 0, 2, 3, or 4 vector elements. */
-   unsigned matrix_rows:3;     /**< 0, 2, 3, or 4 matrix rows. */
+   unsigned matrix_columns:3;  /**< 0, 2, 3, or 4 matrix columns. */
 
    /**
     * Name of the data type
@@ -108,11 +108,11 @@ struct glsl_type {
 
 
    glsl_type(unsigned base_type, unsigned vector_elements,
-	     unsigned matrix_rows, const char *name) :
+	     unsigned matrix_columns, const char *name) :
       base_type(base_type), 
       sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
       sampler_type(0),
-      vector_elements(vector_elements), matrix_rows(matrix_rows),
+      vector_elements(vector_elements), matrix_columns(matrix_columns),
       name(name),
       length(0)
    {
@@ -124,7 +124,7 @@ struct glsl_type {
       base_type(GLSL_TYPE_SAMPLER),
       sampler_dimensionality(dim), sampler_shadow(shadow),
       sampler_array(array), sampler_type(type),
-      vector_elements(0), matrix_rows(0),
+      vector_elements(0), matrix_columns(0),
       name(name),
       length(0)
    {
@@ -136,7 +136,7 @@ struct glsl_type {
       base_type(GLSL_TYPE_STRUCT),
       sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
       sampler_type(0),
-      vector_elements(0), matrix_rows(0),
+      vector_elements(0), matrix_columns(0),
       name(name),
       length(num_fields)
    {
@@ -175,7 +175,7 @@ struct glsl_type {
    bool is_vector() const
    {
       return (vector_elements > 0)
-	 && (matrix_rows == 0)
+	 && (matrix_columns == 0)
 	 && (base_type >= GLSL_TYPE_UINT)
 	 && (base_type <= GLSL_TYPE_BOOL);
    }
@@ -186,7 +186,7 @@ struct glsl_type {
    bool is_matrix() const
    {
       /* GLSL only has float matrices. */
-      return (matrix_rows > 0) && (base_type == GLSL_TYPE_FLOAT);
+      return (matrix_columns > 0) && (base_type == GLSL_TYPE_FLOAT);
    }
 
    /**
@@ -239,7 +239,7 @@ struct glsl_type {
    const glsl_type *row_type() const
    {
       return is_matrix()
-	 ? get_instance(base_type, matrix_rows, 1)
+	 ? get_instance(base_type, matrix_columns, 1)
 	 : glsl_error_type;
    }
 
diff --git a/ir.cpp b/ir.cpp
index 49df754..ad75cda 100644
--- a/ir.cpp
+++ b/ir.cpp
@@ -59,7 +59,7 @@ ir_constant::ir_constant(const struct glsl_type *type, const void *data)
 {
    const unsigned elements = 
       ((type->vector_elements == 0) ? 1 : type->vector_elements)
-      * ((type->matrix_rows == 0) ? 1 : type->matrix_rows);
+      * ((type->matrix_columns == 0) ? 1 : type->matrix_columns);
    unsigned size = 0;
 
    this->type = type;
diff --git a/ir_function.cpp b/ir_function.cpp
index 1ff5b20..b6139c4 100644
--- a/ir_function.cpp
+++ b/ir_function.cpp
@@ -38,7 +38,7 @@ type_compare(const glsl_type *a, const glsl_type *b)
    case GLSL_TYPE_FLOAT:
    case GLSL_TYPE_BOOL:
       if ((a->vector_elements != b->vector_elements)
-	  || (a->matrix_rows != b->matrix_rows))
+	  || (a->matrix_columns != b->matrix_columns))
 	 return -1;
 
       /* There is no implicit conversion to or from bool.
-- 
2.7.4