Merge pull request #5977 from dabingnn/develop_fixID_Android_bug

Develop fix id android bug

cocos/2d/CCGLProgram.cpp

@@ -84,6 +84,38 @@ const char* GLProgram::ATTRIBUTE_NAME_COLOR = "a_color";
 const char* GLProgram::ATTRIBUTE_NAME_POSITION = "a_position";
 const char* GLProgram::ATTRIBUTE_NAME_TEX_COORD = "a_texCoord";
 
+#define CC_GLPROGRAM_MAX_MATERIAL_ID_NUMBER 1024
+
+GLProgram::MaterialProgramIDAllocator::MaterialProgramIDAllocator()
+{
+    for(GLuint id = 1; id < CC_GLPROGRAM_MAX_MATERIAL_ID_NUMBER; ++id)
+    {
+        _freeIDs.insert(id);
+    }
+}
+
+GLProgram::MaterialProgramIDAllocator::~MaterialProgramIDAllocator()
+{
+    //do nothing
+}
+
+GLuint GLProgram::MaterialProgramIDAllocator::allocID()
+{
+    CCASSERT(_freeIDs.size()!=0, "There are no allocated ID");
+    GLuint id = *(_freeIDs.begin());
+    _freeIDs.erase(id);
+    return id;
+}
+
+void GLProgram::MaterialProgramIDAllocator::freeID(GLuint id)
+{
+    CCASSERT(_freeIDs.find(id) == _freeIDs.end() && id != 0, "free id is 0 or a duplicated id");
+    _freeIDs.insert(id);
+}
+
+GLProgram::MaterialProgramIDAllocator GLProgram::_idAllocator;
+const GLuint GLProgram::_maxMaterialIDNumber = CC_GLPROGRAM_MAX_MATERIAL_ID_NUMBER;
+
 GLProgram::GLProgram()
 : _program(0)
 , _vertShader(0)
@@ -92,10 +124,13 @@ GLProgram::GLProgram()
 , _flags()
 {
     memset(_uniforms, 0, sizeof(_uniforms));
+    _materialProgramID = _idAllocator.allocID();
 }
 
 GLProgram::~GLProgram()
 {
+    _idAllocator.freeID(_materialProgramID);
+    _materialProgramID = 0;
     CCLOGINFO("%s %d deallocing GLProgram: %p", __FUNCTION__, __LINE__, this);
 
     // there is no need to delete the shaders. They should have been already deleted.

cocos/2d/CCGLProgram.h

@@ -34,6 +34,7 @@ THE SOFTWARE.
 #include "CCRef.h"
 #include "CCGL.h"
 #include "kazmath/kazmath.h"
+#include <set>
 
 NS_CC_BEGIN
 
@@ -256,7 +257,7 @@ public:
     void reset();
     
     inline const GLuint getProgram() const { return _program; }
-
+    inline const GLuint getMaterialProgramID() const { return _materialProgramID; }
     // DEPRECATED
     CC_DEPRECATED_ATTRIBUTE bool initWithVertexShaderByteArray(const GLchar* vShaderByteArray, const GLchar* fShaderByteArray)
     { return initWithByteArrays(vShaderByteArray, fShaderByteArray); }
@@ -272,6 +273,8 @@ private:
     std::string logForOpenGLObject(GLuint object, GLInfoFunction infoFunc, GLLogFunction logFunc) const;
 
 private:
+    //ID used for renderer material, _materialProgramID maybe different from _program
+    GLuint            _materialProgramID;
     GLuint            _program;
     GLuint            _vertShader;
     GLuint            _fragShader;
@@ -292,6 +295,21 @@ private:
         // handy way to initialize the bitfield
         flag_struct() { memset(this, 0, sizeof(*this)); }
     } _flags;
+private:
+    class MaterialProgramIDAllocator
+    {
+    public:
+        MaterialProgramIDAllocator();
+        ~MaterialProgramIDAllocator();
+        GLuint allocID();
+        void freeID(GLuint id);
+    private:
+        std::set<GLuint> _freeIDs;
+    };
+    
+    static MaterialProgramIDAllocator _idAllocator;
+public:
+    static const GLuint _maxMaterialIDNumber;
 };
 
 // end of shaders group

cocos/2d/renderer/CCQuadCommand.cpp

@@ -61,9 +61,7 @@ void QuadCommand::generateMaterialID()
 {
     //Generate Material ID
     //TODO fix shader ID generation
-    CCASSERT(_shader->getProgram() < pow(2,10), "ShaderID is greater than 2^10");
-    //TODO fix texture ID generation
-    CCASSERT(_textureID < pow(2,18), "TextureID is greater than 2^18");
+    CCASSERT(_shader->getMaterialProgramID() < GLProgram::_maxMaterialIDNumber, "ShaderID is greater than Id limitation");
 
     //TODO fix blend id generation
     int blendID = 0;
@@ -96,7 +94,7 @@ void QuadCommand::generateMaterialID()
     // | Shader ID (10 bits) | Blend ID (4 bits) | empty (18bits) |  Texture ID (32 bits) |
     // +---------------------+-------------------+----------------------------------------+
 
-    _materialID = (uint64_t)_shader->getProgram() << 54
+    _materialID = (uint64_t)_shader->getMaterialProgramID() << 54
             | (uint64_t)blendID << 50
             | (uint64_t)_textureID << 0;
 }