commit d0e343140e3b6b4e91ecc3e8d2baeb8041b29204
author John McCutchan <john@johnmccutchan.com> Sun Jun 10 16:41:24 2012 -0700
committer John McCutchan <john@johnmccutchan.com> Sun Jun 10 16:41:24 2012 -0700
tree 17fa79ca08ab9b3be6b1668b34945889532f70f1
parent e4e6066cfac35d15c36e169a0d16f0b10c0a3421

Generate Float32Array serialization methods for vectors and matrices

Signed-off-by: John McCutchan <john@johnmccutchan.com>

gen/MatrixGen.dart

diff --git a/gen/MatrixGen.dart b/gen/MatrixGen.dart
index cea809b..18ecf26 100644
--- a/gen/MatrixGen.dart
+++ b/gen/MatrixGen.dart
@@ -1367,6 +1367,48 @@
       iPrint('}');
     }
   }
+  
+  void generateBuffer() {
+    iPrint('\/\/\/ Copies [this] into [array] starting at [offset].');
+    iPrint('void copyIntoArray(Float32Array array, [int offset=0]) {');
+    iPush();
+    iPrint('int i = offset;');
+    for (int j = 0; j < cols; j++) {
+      for (int i = 0; i < rows; i++) {
+        iPrint('array[i] = ${Access(i,j)};');
+        iPrint('i++;');
+      }
+    }
+    iPop();
+    iPrint('}');
+    iPrint('\/\/\/ Returns a copy of [this] as a [Float32Array].');
+    iPrint('Float32Array copyAsArray() {');
+    iPush();
+    iPrint('Float32Array array = new Float32Array(${rows * cols});');
+    iPrint('int i = 0;');
+    for (int j = 0; j < cols; j++) {
+      for (int i = 0; i < rows; i++) {
+        iPrint('array[i] = ${Access(i,j)};');
+        iPrint('i++;');
+      }
+    }
+    iPrint('return array;');
+    iPop();
+    iPrint('}');
+    iPrint('\/\/\/ Copies elements from [array] into [this] starting at [offset].');
+    iPrint('void copyFromArray(Float32Array array, [int offset=0]) {');
+    iPush();
+    iPrint('int i = offset;');
+    for (int j = 0; j < cols; j++) {
+      for (int i = 0; i < rows; i++) {
+        iPrint('${Access(i,j)} = array[i];');
+        iPrint('i++;');
+      }
+    }
+    iPop();
+    iPrint('}');
+  }
+  
   void generate() {
     writeLicense();
     generatePrologue();
@@ -1402,6 +1444,7 @@
     generateSelfTransposeMultiplyMatrix();
     generateSelfMultiplyTransposeMatrix();
     generateTransforms();
+    generateBuffer();
     generateEpilogue();
   }
 }

gen/VectorMathGen.dart

diff --git a/gen/VectorMathGen.dart b/gen/VectorMathGen.dart
index 991fe0b..5bbdefe 100644
--- a/gen/VectorMathGen.dart
+++ b/gen/VectorMathGen.dart
@@ -271,6 +271,17 @@
     }
     iPop();
     iPrint('}');
+    
+    iPrint('\/\/\/ Constructs a new [$generatedName] that is initialized with values from [array] starting at [offset].');
+    iPrint('$generatedName.array(Float32Array array, [int offset=0]) {');
+    iPush();
+    iPrint('int i = offset;');
+    for (String e in vectorComponents) {
+      iPrint('$e = array[i];');
+      iPrint('i++;');
+    }
+    iPop();
+    iPrint('}');
   }
   
   void generateToString() {
@@ -671,6 +682,41 @@
     iPrint('}');
   }
   
+  void generateBuffer() {
+    iPrint('\/\/\/ Copies [this] into [array] starting at [offset].');
+    iPrint('void copyIntoArray(Float32Array array, [int offset=0]) {');
+    iPush();
+    iPrint('int i = offset;');
+    for (String c in vectorComponents) {
+      iPrint('array[i] = $c;');
+      iPrint('i++;');
+    }
+    iPop();
+    iPrint('}');
+    iPrint('\/\/\/ Returns a copy of [this] as a [Float32Array].');
+    iPrint('Float32Array copyAsArray() {');
+    iPush();
+    iPrint('Float32Array array = new Float32Array($vectorLen);');
+    iPrint('int i = 0;');
+    for (String c in vectorComponents) {
+      iPrint('array[i] = $c;');
+      iPrint('i++;');
+    }
+    iPrint('return array;');
+    iPop();
+    iPrint('}');
+    iPrint('\/\/\/ Copies elements from [array] into [this] starting at [offset].');
+    iPrint('void copyFromArray(Float32Array array, [int offset=0]) {');
+    iPush();
+    iPrint('int i = offset;');
+    for (String c in vectorComponents) {
+      iPrint('$c = array[i];');
+      iPrint('i++;');
+    }
+    iPop();
+    iPrint('}');
+  }
+  
   void generate() {
     writeLicense();
     generatePrologue();
@@ -719,6 +765,7 @@
     generateSelfScalarOp('Scale', '*');
     generateSelfNegate();
     generateCopy();
+    generateBuffer();
     generateEpilogue();
   }
 }

lib/VectorMath/VectorMath.dart

diff --git a/lib/VectorMath/VectorMath.dart b/lib/VectorMath/VectorMath.dart
index 0a1c029..c2484d2 100644
--- a/lib/VectorMath/VectorMath.dart
+++ b/lib/VectorMath/VectorMath.dart
@@ -23,6 +23,7 @@
 */
 #library("VectorMath");
 #import('dart:builtin');
+#import('dart:html'); // For Float32Array
 #source("src/ScalarMath.dart");
 #source("gen/vec2_gen.dart");
 #source("gen/vec3_gen.dart");