Merge pull request #50 from weiwest/master

add astc support (Great Job)

cocos/base/CCConfiguration.cpp

@@ -46,6 +46,7 @@ Configuration::Configuration()
 , _supportsETC1(false)
 , _supportsS3TC(false)
 , _supportsATITC(false)
+, _supportsASTC(false)
 , _supportsNPOT(false)
 , _supportsBGRA8888(false)
 , _supportsDiscardFramebuffer(false)
@@ -111,6 +112,8 @@ std::string Configuration::getInfo() const
 void Configuration::gatherGPUInfo()
 {
     auto _deviceInfo = backend::Device::getInstance()->getDeviceInfo();
+    CCLOG("weichao %s",_deviceInfo->getExtension());
+
     _valueDict["vendor"] = Value(_deviceInfo->getVendor());
     _valueDict["renderer"] = Value(_deviceInfo->getRenderer());
     _valueDict["version"] = Value(_deviceInfo->getVersion());
@@ -132,6 +135,10 @@ void Configuration::gatherGPUInfo()
     _supportsATITC = _deviceInfo->checkForFeatureSupported(backend::FeatureType::AMD_COMPRESSED_ATC);
     _valueDict["supports_ATITC"] = Value(_supportsATITC);
 
+    //_supportsASTC = checkForGLExtension("GL_OES_texture_compression_astc");
+    _supportsASTC = _deviceInfo->checkForFeatureSupported(backend::FeatureType::ASTC);
+    _valueDict["gl.supports_ASTC"] = Value(_supportsASTC);
+    
     _supportsPVRTC = _deviceInfo->checkForFeatureSupported(backend::FeatureType::PVRTC);
     _valueDict["supports_PVRTC"] = Value(_supportsPVRTC);
     
@@ -224,6 +231,11 @@ bool Configuration::supportsATITC() const
     return _supportsATITC;
 }
 
+bool Configuration::supportsASTC() const
+{
+    return _supportsASTC;
+}
+
 bool Configuration::supportsBGRA8888() const
 {
 	return _supportsBGRA8888;

cocos/base/CCConfiguration.h

@@ -120,6 +120,12 @@ public:
      */
     bool supportsATITC() const;
 
+    /** Whether or not ASTC Texture Compressed is supported.
+     *
+     * @return Is true if supports ASTC Texture Compressed.
+     */
+    bool supportsASTC() const;
+
     /** Whether or not BGRA8888 textures are supported.
      *
      * @return Is true if supports BGRA8888 textures.
@@ -248,6 +254,7 @@ protected:
     bool            _supportsETC1;
     bool            _supportsS3TC;
     bool            _supportsATITC;
+    bool            _supportsASTC;
     bool            _supportsNPOT;
     bool            _supportsBGRA8888;
     bool            _supportsDiscardFramebuffer;

cocos/base/CMakeLists.txt

@@ -15,6 +15,7 @@ elseif(LINUX OR WINDOWS)
 endif()
 
 set(COCOS_BASE_HEADER
+    base/astc.h
     base/pvr.h
     base/CCValue.h
     base/CCEventListenerMouse.h
@@ -131,5 +132,6 @@ set(COCOS_BASE_SRC
     base/etc1.cpp
     base/pvr.cpp
     base/s3tc.cpp
+    base/astc.cpp
     ${COCOS_BASE_SPECIFIC_SRC}
     )

cocos/base/astc.cpp

@@ -0,0 +1,73 @@
+/******************************************************************************
+
+ ASTC Texture Decompression.
+
+ ******************************************************************************/
+
+#include "base/astc.h"
+#include "astc/astc_codec_internals.h"
+
+ // Functions that are used in compilation units we depend on, but don't actually
+ // use.
+//int astc_codec_unlink(const char* filename) { return 0; }
+//void astc_codec_internal_error(const char* filename, int linenum) {}
+astc_codec_image* load_ktx_uncompressed_image(const char* filename, int padding, int* result) { return 0; }
+astc_codec_image* load_dds_uncompressed_image(const char* filename, int padding, int* result) { return 0; }
+astc_codec_image* load_tga_image(const char* tga_filename, int padding, int* result) { return 0; }
+astc_codec_image* load_image_with_stb(const char* filename, int padding, int* result) { return 0; }
+int store_ktx_uncompressed_image(const astc_codec_image* img, const char* filename, int bitness) { return 0; }
+int store_dds_uncompressed_image(const astc_codec_image* img, const char* filename, int bitness) { return 0; }
+int store_tga_image(const astc_codec_image* img, const char* tga_filename, int bitness) { return 0; }
+
+
+extern int ASTC_INIT = 0;
+
+uint8_t float2byte(float f) {
+
+    if (f > 1.0f) { return 255; }
+    if (f < 0.0f) { return 0; }
+
+    return (uint8_t)(f * 255.0f + 0.5f);
+}
+
+uint8_t decompress_astc(const uint8_t* in, uint8_t* out, uint32_t width, uint32_t height, uint32_t xdim, uint32_t ydim, uint32_t datalen)
+{
+    //init astc mode table only once
+    if (ASTC_INIT <= 0)
+    {
+        ASTC_INIT = 1;
+        build_quantization_mode_table();
+    }
+
+    uint32_t  xblocks = (width + xdim - 1) / xdim;
+    uint32_t  yblocks = (height + ydim - 1) / ydim;
+
+    imageblock pb;
+    for (uint32_t by = 0; by < yblocks; by++) {
+        for (uint32_t bx = 0; bx < xblocks; bx++) {
+
+            physical_compressed_block pcb = *(physical_compressed_block*)in;
+            symbolic_compressed_block scb;
+            physical_to_symbolic(xdim, ydim, 1, pcb, &scb);
+            decompress_symbolic_block(DECODE_LDR_SRGB, xdim, ydim, 1, bx * xdim, by * ydim, 0, &scb, &pb);
+            in += 16;
+
+            const float* data = pb.orig_data;
+            for (uint32_t dy = 0; dy < ydim; dy++) {
+                uint32_t y = by * ydim + dy;
+                for (uint32_t dx = 0; dx < xdim; dx++) {
+                    uint32_t x = bx * xdim + dx;
+                    if (x < width && y < height) {
+                        uint8_t* pxl = &out[(width * y + x) * 4];
+                        pxl[0] = float2byte(data[0]);
+                        pxl[1] = float2byte(data[1]);
+                        pxl[2] = float2byte(data[2]);
+                        pxl[3] = float2byte(data[3]);
+                    }
+                    data += 4;
+                }
+            }
+        }
+    }
+    return 0;
+}

cocos/base/astc.h

@@ -0,0 +1,24 @@
+/******************************************************************************
+ 
+ ASTC Texture Decompression.
+ 
+ ******************************************************************************/
+
+#ifndef __ASTC_H__
+#define __ASTC_H__
+
+#include <stdint.h>
+
+// ASTC parameters
+#define ASTC_HEAD_SIZE 16
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+    uint8_t decompress_astc(const uint8_t* in, uint8_t* out, uint32_t width, uint32_t height, uint32_t xdim, uint32_t ydim, uint32_t datalen);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif //__ASTC_H__

cocos/platform/CCImage.cpp

@@ -94,6 +94,8 @@ extern "C"
 
 #include "base/etc1.h"
 
+#include "base/astc.h"
+    
 #if CC_USE_JPEG
 #include "jpeglib.h"
 #include <setjmp.h>
@@ -124,6 +126,8 @@ extern "C"
 #define CC_GL_ATC_RGBA_EXPLICIT_ALPHA_AMD                          0x8C93
 #define CC_GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD                      0x87EE
 
+#define ASTC_MAGIC_FILE_CONSTANT 0x5CA1AB13
+
 NS_CC_BEGIN
 
 //////////////////////////////////////////////////////////////////////////
@@ -435,6 +439,24 @@ namespace
 
 //////////////////////////////////////////////////////////////////////////
 
+//struct and data for ASTC struct
+namespace
+{
+    struct ASTCTexHeader
+    {
+        uint8_t magic[4];
+        uint8_t blockdim_x;
+        uint8_t blockdim_y;
+        uint8_t blockdim_z;
+        uint8_t xsize[3];			// x-size = xsize[0] + xsize[1] + xsize[2]
+        uint8_t ysize[3];			// x-size, y-size and z-size are given in texels;
+        uint8_t zsize[3];			// block count is inferred
+    };
+}
+//atitc struct end
+
+//////////////////////////////////////////////////////////////////////////
+
 namespace
 {
     typedef struct 
@@ -599,6 +621,9 @@ bool Image::initWithImageData(const unsigned char* data, ssize_t dataLen, bool o
         case Format::ATITC:
             ret = initWithATITCData(unpackedData, unpackedLen);
             break;
+        case Format::ASTC:
+            ret = initWithASTCData(unpackedData, unpackedLen, ownData);
+            break;
         case Format::BMP:
             ret = initWithBmpData(unpackedData, unpackedLen);
             break;
@@ -676,6 +701,19 @@ bool Image::isATITC(const unsigned char *data, ssize_t /*dataLen*/)
     return true;
 }
 
+bool Image::isASTC(const unsigned char* data, ssize_t /*dataLen*/)
+{
+    ASTCTexHeader* hdr = (ASTCTexHeader*)data;
+
+    uint32_t magicval = hdr->magic[0] + 256 * (uint32_t)(hdr->magic[1]) + 65536 * (uint32_t)(hdr->magic[2]) + 16777216 * (uint32_t)(hdr->magic[3]);
+
+    if (magicval != ASTC_MAGIC_FILE_CONSTANT)
+    {
+        return false;
+    }
+    return true;
+}
+
 bool Image::isJpg(const unsigned char * data, ssize_t dataLen)
 {
     if (dataLen <= 4)
@@ -749,6 +787,10 @@ Image::Format Image::detectFormat(const unsigned char * data, ssize_t dataLen)
     {
         return Format::ATITC;
     }
+    else if (isASTC(data, dataLen))
+    {
+        return Format::ASTC;
+    }
     else
     {
         return Format::UNKNOWN;
@@ -1524,6 +1566,70 @@ bool Image::initWithETCData(const unsigned char* data, ssize_t dataLen, bool own
     return false;
 }
 
+
+bool Image::initWithASTCData(const unsigned char* data, ssize_t dataLen, bool ownData)
+{
+    ASTCTexHeader* header = (ASTCTexHeader*)data;
+
+    _width = header->xsize[0] + 256 * header->xsize[1] + 65536 * header->xsize[2];
+    _height = header->ysize[0] + 256 * header->ysize[1] + 65536 * header->ysize[2];
+
+    if (0 == _width || 0 == _height)
+    {
+        return false;
+    }
+
+    uint8_t xdim = header->blockdim_x;
+    uint8_t ydim = header->blockdim_y;
+
+    if ((xdim != 4 && xdim != 8) || (ydim != 4 && ydim != 8))
+    {
+        CCLOG("unly support 4x4|8x8£¬becouse cocos unly support int bpp");
+        return false;
+    }
+
+    if (Configuration::getInstance()->supportsASTC())
+    {
+        _pixelFormat = backend::PixelFormat::ASTC4;
+        if (xdim == 8 && ydim == 8)
+        {
+            _pixelFormat = backend::PixelFormat::ASTC8;
+        }
+        _dataLen = dataLen;
+        _data = (unsigned char*)data;
+        _offset = ASTC_HEAD_SIZE; 
+        return true;
+    }
+    else
+    {
+        CCLOG("cocos2d: Hardware ASTC decoder not present. Using software decoder");
+
+        bool ret = true;
+        _pixelFormat = backend::PixelFormat::RGBA8888;
+
+        _dataLen = _width * _height * 32;
+        _data = static_cast<unsigned char*>(malloc(_dataLen * sizeof(unsigned char)));
+
+        uint8_t result = decompress_astc(static_cast<const unsigned char*>(data) + ASTC_HEAD_SIZE, _data, _width, _height, xdim, ydim, _dataLen);
+        if (result != 0)
+        {
+            _dataLen = 0;
+            if (_data != nullptr)
+            {
+                free(_data);
+                _data = nullptr;
+            }
+            ret = false;
+        }
+
+        if (ownData) free((void*)data);
+        return ret;
+    }
+
+    return false;
+}
+
+
 bool Image::initWithTGAData(tImageTGA* tgaData)
 {
     bool ret = false;

cocos/platform/CCImage.h

@@ -92,6 +92,8 @@ public:
         ATITC,
         //! TGA
         TGA,
+        //£¡ASTC
+        ASTC,
         //! Raw Data
         RAW_DATA,
         //! Unknown format
@@ -170,6 +172,7 @@ protected:
     bool initWithETCData(const unsigned char* data, ssize_t dataLen, bool ownData);
     bool initWithS3TCData(const unsigned char * data, ssize_t dataLen);
     bool initWithATITCData(const unsigned char *data, ssize_t dataLen);
+    bool initWithASTCData(const unsigned char* data, ssize_t dataLen, bool ownData);
     typedef struct sImageTGA tImageTGA;
     bool initWithTGAData(tImageTGA* tgaData);
 
@@ -226,6 +229,7 @@ protected:
     bool isEtc(const unsigned char * data, ssize_t dataLen);
     bool isS3TC(const unsigned char * data,ssize_t dataLen);
     bool isATITC(const unsigned char *data, ssize_t dataLen);
+    bool isASTC(const unsigned char* data, ssize_t dataLen);
 };
 
 // end of platform group

cocos/renderer/CCTexture2D.cpp

@@ -71,6 +71,8 @@ namespace {
         PixelFormatInfoMapValue(backend::PixelFormat::A8, Texture2D::PixelFormatInfo(8, false, false)),
         PixelFormatInfoMapValue(backend::PixelFormat::I8, Texture2D::PixelFormatInfo(8, false, false)),
         PixelFormatInfoMapValue(backend::PixelFormat::AI88, Texture2D::PixelFormatInfo(16, false, true)),
+        PixelFormatInfoMapValue(backend::PixelFormat::ASTC4, Texture2D::PixelFormatInfo(8, true, true)),
+        PixelFormatInfoMapValue(backend::PixelFormat::ASTC8, Texture2D::PixelFormatInfo(2, true, true)),
 
 #if defined( GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
         PixelFormatInfoMapValue(backend::PixelFormat::PVRTC2, Texture2D::PixelFormatInfo(2, true, false)),
@@ -383,6 +385,7 @@ bool Texture2D::updateWithMipmaps(MipmapInfo* mipmaps, int mipmapsNum, backend::
     if (info.compressed && !Configuration::getInstance()->supportsPVRTC()
         && !Configuration::getInstance()->supportsETC()
         && !Configuration::getInstance()->supportsS3TC()
+        && !Configuration::getInstance()->supportsASTC()
         && !Configuration::getInstance()->supportsATITC())
     {
         CCLOG("cocos2d: WARNING: PVRTC/ETC images are not supported");
@@ -728,6 +731,11 @@ const char* Texture2D::getStringForFormat() const
         case backend::PixelFormat::MTL_BGR5A1:
             return "MTL_BGR5A1";
            
+        case backend::PixelFormat::ASTC4:
+            return "ASTC4";
+        case backend::PixelFormat::ASTC8:
+            return "ASTC8";
+
         default:
             CCASSERT(false , "unrecognized pixel format");
             CCLOG("stringForFormat: %ld, cannot give useful result", (long)_pixelFormat);

cocos/renderer/backend/Texture.cpp

@@ -79,6 +79,10 @@ namespace
                 return byte(2);
             case PixelFormat::MTL_ABGR4:
                 return byte(2);
+            case PixelFormat::ASTC4:
+                return bit(8);
+            case PixelFormat::ASTC8:
+                return bit(2);
             case PixelFormat::D24S8:
 #if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
                 //ios use MTLPixelFormatDepth32Float_Stencil8 as DepthStencil combined format, its 64 bits

cocos/renderer/backend/Types.h

@@ -119,6 +119,12 @@ enum class PixelFormat
     MTL_BGR5A1,
     MTL_ABGR4,
 
+    ASTC4,
+    //! ASTC compressed texture: ASTC 4x4 block
+    ASTC8,
+    //! ASTC compressed texture: ASTC 8x8 block
+
+
     // A packed 32-bit combined depth and stencil pixel format with two nomorlized unsigned integer
     // components: 24 bits, typically used for a depth render target, and 8 bits, typically used for
     // a stencil render target.

cocos/renderer/backend/opengl/DeviceInfoGL.cpp

@@ -98,6 +98,9 @@ bool DeviceInfoGL::checkForFeatureSupported(FeatureType feature)
     case FeatureType::DEPTH24:
         featureSupported = checkForGLExtension("GL_OES_depth24");
         break;
+    case FeatureType::ASTC:
+        featureSupported = checkForGLExtension("GL_OES_texture_compression_astc");
+        break;
     default:
         break;
     }

cocos/renderer/backend/opengl/UtilsGL.cpp

@@ -253,6 +253,21 @@ void UtilsGL::toGLTypes(PixelFormat textureFormat, GLint &internalFormat, GLuint
         format = GL_RGBA;
         type = GL_UNSIGNED_SHORT_5_5_5_1;
         break;
+
+#ifdef GL_COMPRESSED_RGBA_ASTC_4x4_KHR
+    case PixelFormat::ASTC4:
+        internalFormat = GL_COMPRESSED_RGBA_ASTC_4x4_KHR;
+        format = 0xFFFFFFFF;
+        type = 0xFFFFFFFF;
+        break;
+#endif
+#ifdef GL_COMPRESSED_RGBA_ASTC_8x8_KHR
+    case PixelFormat::ASTC8:
+        internalFormat = GL_COMPRESSED_RGBA_ASTC_8x8_KHR;
+        format = 0xFFFFFFFF;
+        type = 0xFFFFFFFF;
+        break;
+#endif
 #ifdef GL_ETC1_RGB8_OES
     case PixelFormat::ETC:
         internalFormat = GL_ETC1_RGB8_OES;

external/config.json

@@ -1,5 +1,5 @@
 {
-    "version": "v26",
+    "version": "v28",
     "zip_file_size": "107642814",
     "repo_name": "engine-v5-3rd",
     "repo_parent": "https://github.com/c4games/",

tests/cpp-tests/Classes/SpriteTest/SpriteTest.cpp

@@ -61,6 +61,7 @@ SpriteTests::SpriteTests()
     ADD_TEST_CASE(Sprite1);
     ADD_TEST_CASE(Sprite1BMP);
     ADD_TEST_CASE(Sprite1ETC1Alpha);
+    ADD_TEST_CASE(SpriteASTC);
     ADD_TEST_CASE(SpriteBatchNode1);
     ADD_TEST_CASE(SpriteAnchorPoint);
     ADD_TEST_CASE(SpriteBatchNodeAnchorPoint);
@@ -355,6 +356,74 @@ std::string Sprite1ETC1Alpha::subtitle() const
     return "Tap screen to add more sprites";
 }
 
+//------------------------------------------------------------------
+//
+// SpriteASTC
+//
+//------------------------------------------------------------------
+
+SpriteASTC::SpriteASTC()
+{
+    auto listener = EventListenerTouchAllAtOnce::create();
+    listener->onTouchesEnded = CC_CALLBACK_2(SpriteASTC::onTouchesEnded, this);
+    _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
+}
+
+bool SpriteASTC::init()
+{
+    if (!SpriteTestDemo::init())
+        return false;
+
+    auto& canvasSize = getContentSize();
+    _background = LayerColor::create(Color4B(15, 19, 42, 255), canvasSize.width, canvasSize.height);
+    _background->setIgnoreAnchorPointForPosition(false);
+    _background->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
+
+    auto s = Director::getInstance()->getWinSize();
+    _background->setPosition(Vec2(s.width / 2, s.height / 2));
+    this->addChild(_background);
+
+    addNewSpriteWithCoords();
+    return true;
+}
+
+void SpriteASTC::addNewSpriteWithCoords()
+{
+    auto s = Director::getInstance()->getWinSize();
+    auto sprite4 = Sprite::create("Images/ASTC_RGBA.astc");
+    sprite4->setPosition(Vec2(s.width * 0.2, s.height * 0.5));
+    _background->addChild(sprite4);
+
+    auto spriteA4 = Sprite::create("Images/ASTC_RGB.astc");
+    spriteA4->setPosition(Vec2(s.width * 0.5, s.height * 0.5));
+    _background->addChild(spriteA4);
+
+    auto sprite8 = Sprite::create("Images/ASTC_RGBA_8x8.astc");
+    sprite8->setPosition(Vec2(s.width * 0.8, s.height * 0.5));
+    _background->addChild(sprite8);
+
+}
+
+void SpriteASTC::onTouchesEnded(const std::vector<Touch*>& touches, Event* event)
+{
+    //for (auto touch : touches)
+    //{
+    //    auto location = touch->getLocation();
+
+    //    addNewSpriteWithCoords();
+    //}
+}
+
+std::string SpriteASTC::title() const
+{
+    return "Testing Sprite ASTC support";
+}
+
+std::string SpriteASTC::subtitle() const
+{
+    return "";
+}
+
 //------------------------------------------------------------------
 //
 // SpriteBatchNode1

tests/cpp-tests/Classes/SpriteTest/SpriteTest.h

@@ -79,6 +79,21 @@ public:
     cocos2d::Node* _background;
 };
 
+class SpriteASTC : public SpriteTestDemo
+{
+public:
+    CREATE_FUNC(SpriteASTC);
+    SpriteASTC();
+    bool init() override;
+    virtual std::string title() const override;
+    virtual std::string subtitle() const override;
+
+    void addNewSpriteWithCoords();
+    void onTouchesEnded(const std::vector<cocos2d::Touch*>& touches, cocos2d::Event* event);
+
+    cocos2d::Node* _background;
+};
+
 class SpriteBatchNode1: public SpriteTestDemo
 {
 public: