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#include "Headers/ImageTools.h"

#include "Core/Headers/Console.h"
#include "Utility/Headers/Localization.h"
#include "Platform/Video/Headers/RenderAPIEnums.h"

#define IL_STATIC_LIB
#undef _UNICODE
#include <IL/il.h>
#include <IL/ilu.h>

namespace Divide {
namespace ImageTools {
    inline GFXImageFormat textureFormatDevIL(ILint format)
    {
        switch(format)    {
            case IL_RGB   : return RGB;
            case IL_ALPHA : return ALPHA;
            case IL_RGBA  : return RGBA;
            case IL_BGR   : return BGR;
            case IL_BGRA  : return BGRA;
            case IL_LUMINANCE : return LUMINANCE;
            case IL_LUMINANCE_ALPHA : return LUMINANCE_ALPHA;
        };

        return RGB;
    }

    void initialize() {
        // used to play nice with DevIL (DevIL acts like OpenGL - a state machine)
        static bool first = true;
        if(!first)
            return;

        first = false;
        ilInit();
        ilEnable(IL_TYPE_SET);
        ilTypeFunc(IL_UNSIGNED_BYTE);
    }

    void ImageData::throwLoadError(const stringImpl& fileName){
        ERROR_FN(Locale::get("ERROR_IMAGETOOLS_INVALID_IMAGE_FILE"),fileName.c_str());
        ILenum error;
        while((error = ilGetError()) != IL_NO_ERROR) {
            ERROR_FN(Locale::get("ERROR_IMAGETOOLS_DEVIL"), iluErrorString(error));
        }

        ilDeleteImage(_ilTexture);
        _ilTexture = 0;
    }

    bool ImageData::prepareInternalData() {
        initialize();

        ilOriginFunc(_flip ? IL_ORIGIN_LOWER_LEFT : IL_ORIGIN_UPPER_LEFT);
        ilEnable(IL_ORIGIN_SET);
        ilGenImages(1, &_ilTexture);
        ilBindImage(_ilTexture);
        return true;
    }

    bool ImageData::setInternalData() {
        DIVIDE_ASSERT(ilGetInteger(IL_CUR_IMAGE) != 0, "INVALID IMAGE FILE TARGET FOR INTERNAL DATA UPDATE!");
        _dimensions.set(ilGetInteger(IL_IMAGE_WIDTH), ilGetInteger(IL_IMAGE_HEIGHT));
        _bpp    = ilGetInteger(IL_IMAGE_BPP);
        ILint format = ilGetInteger(IL_IMAGE_FORMAT);

        // we determine the target format and use a flag to determine if we should convert or not
        ILint targetFormat = format;

        switch(format){
            //palette types
            case IL_COLOR_INDEX: {
                switch(ilGetInteger(IL_PALETTE_TYPE)) {
                    default:
                    case IL_PAL_NONE: {
                        throwLoadError(_name);
                        return false;
                    }
                    case IL_PAL_RGB24:
                    case IL_PAL_RGB32:
                    case IL_PAL_BGR24:
                    case IL_PAL_BGR32:  targetFormat = IL_RGB;  break;
                    case IL_PAL_BGRA32:
                    case IL_PAL_RGBA32:    targetFormat = IL_RGBA; break;
                }
            } break;
            case IL_BGRA: targetFormat = IL_RGBA; break;
            case IL_BGR:  targetFormat = IL_RGB; break;
        }

        // if the image's format is not desired or the image's data type is not in unsigned byte format, we should convert it
        if(format != targetFormat || (ilGetInteger(IL_IMAGE_TYPE) != IL_UNSIGNED_BYTE)){
            if(ilConvertImage(targetFormat, IL_UNSIGNED_BYTE) != IL_TRUE){
                throwLoadError(_name);
                return false;
            }
            format = targetFormat;
        }

        // most formats do not have an alpha channel
        _alpha = (format == IL_RGBA || format == IL_LUMINANCE_ALPHA || format == IL_ALPHA);
        _format = textureFormatDevIL(format);
        _imageSize = (size_t)(_dimensions.width) * (size_t)(_dimensions.height) * (size_t)(_bpp);

        _data = MemoryManager_NEW U8[_imageSize];
        memcpy(_data, ilGetData(), _imageSize);

        ilBindImage(0);
        return true;
    }

    bool ImageData::create(const void* ptr, U32 size) {
        WriteLock w_lock(_loadingMutex);
        prepareInternalData();
        _name = "[buffer offset file]";
        if (ilLoadL(IL_TYPE_UNKNOWN, ptr, size) == IL_FALSE)    {
            throwLoadError(_name);
            return false;
        }

        return setInternalData();
    }

    bool ImageData::create(const stringImpl& filename) {
        WriteLock w_lock(_loadingMutex);
        prepareInternalData();
        _name = filename;
        if (ilLoadImage(filename.c_str()) == IL_FALSE)    {
            throwLoadError(_name);
            return false;
        }

        return setInternalData();
    }

    void ImageData::destroy() {
        ilDeleteImage( _ilTexture );
        _ilTexture = 0;
        MemoryManager::DELETE_ARRAY( _data );
    }

    vec4<U8> ImageData::getColor(U16 x, U16 y) const {
        I32 idx = (y * _dimensions.width + x) * _bpp;
        return vec4<U8>(_data[idx + 0], _data[idx + 1], _data[idx + 2], _alpha ? _data[idx + 3] : 255);
    }

    void ImageData::resize(U16 width, U16 height) {
        ilBindImage(_ilTexture);
        iluImageParameter(ILU_FILTER,ILU_SCALE_BELL);
        iluScale(width,height,_bpp);
        _dimensions.set(width,height);
        ilBindImage(0);
    }

    I8 SaveToTGA(const char *filename, const vec2<U16>& dimensions, U8 pixelDepth, U8 *imageData) {
        U8 cGarbage = 0, type,mode,aux;
        I16 iGarbage = 0;
        U16 width = dimensions.width;
        U16 height = dimensions.height;

        // open file and check for errors
        FILE *file = fopen(filename, "wb");
        if (file == nullptr) {
            return(-1);
        }

        // compute image type: 2 for RGB(A), 3 for greyscale
        mode = pixelDepth / 8;
        type = ((pixelDepth == 24) || (pixelDepth == 32)) ?  2 : 3;

        // write the header
        fwrite(&cGarbage, sizeof(U8), 1, file);
        fwrite(&cGarbage, sizeof(U8), 1, file);
        fwrite(&type,     sizeof(U8), 1, file);

        fwrite(&iGarbage, sizeof(I16), 1, file);
        fwrite(&iGarbage, sizeof(I16), 1, file);
        fwrite(&cGarbage, sizeof(U8),  1, file);
        fwrite(&iGarbage, sizeof(I16), 1, file);
        fwrite(&iGarbage, sizeof(I16), 1, file);

        fwrite(&width,      sizeof(U16), 1, file);
        fwrite(&height,     sizeof(U16), 1, file);
        fwrite(&pixelDepth, sizeof(U8),  1, file);
        fwrite(&cGarbage,   sizeof(U8),  1, file);

        // convert the image data from RGB(a) to BGR(A)
        if (mode >= 3)
        for (I32 i=0; i < width * height * mode ; i+= mode) {
            aux = imageData[i];
            imageData[i] = imageData[i+2];
            imageData[i+2] = aux;
        }

        // save the image data
        fwrite(imageData, sizeof(U8), width * height * mode, file);
        fclose(file);
        return 0;
    }

    /// saves a series of files with names "filenameX.tga"
    I8 SaveSeries(char *filename, const vec2<U16>& dimensions, U8 pixelDepth, U8 *imageData) {
        static I32 savedImages = 0;
        stringImpl newFilename(filename);
        // compute the new filename by adding the
        // series number and the extension
        newFilename.append(Util::toString(savedImages) + ".tga");

        // save the image
        I8 status = SaveToTGA(newFilename.c_str(),dimensions,pixelDepth,imageData);

        //increase the counter
        if (status == 0) savedImages++;

        return status;
    }
}; //namespace ImageTools
}; //namespace Divide

Commits for Divide-Framework/trunk/Source Code/Utility/ImageTools.cpp

Diff revisions: vs.
Revision Author Commited Message
337 Diff Diff IonutCava picture IonutCava Wed 17 Dec, 2014 17:25:16 +0000

[Ionut]
- Replaced all tabs with 4 spaces (some spacing may be off now. no way to check all the files.)
- Moved implementation details for ParamHandler, BoundingBox, BoundingSphere and ProfileTimer to proper .inl and .cpp files. (more to follow)
- Update all forward declared enums with the required storage type (as requested by the C++11 standard)

334 Diff Diff IonutCava picture IonutCava Wed 10 Dec, 2014 17:21:22 +0000

[Ionut]
- Reorganized the Hardware project and renamed to "Platform"
- Reorganized the Server project

333 Diff Diff IonutCava picture IonutCava Tue 09 Dec, 2014 16:15:44 +0000

[Ionut]
- Removed “core.h” and moved everything to their appropriate header files
- Renamed MathClasses to MathMatrices (finally)
- Renamed “-Inl.h” files to ".inl"
- Some String wrapper refactoring
- Update “InstallLibraries.bat” so that it still offers valid options

331 Diff Diff IonutCava picture IonutCava Sat 06 Dec, 2014 20:53:45 +0000

[Ionut]
- Limited line length to 132 characters to improve readability and diff-comparisons
- Refactored memory allocation/deallocation functions
- Fixed a few compatibility issues with HashMap.h
- Fixed a bug in GPU Skinning shaders (cast a float to int)

326 Diff Diff IonutCava picture IonutCava Tue 30 Sep, 2014 21:11:32 +0000

[Ionut]
- Fixed more memory leaks
- Simplified Task interface and timing System
- Improved compatibility between Boost, STL and EASTL with random combinations of vectors, strings and maps
- Simplified Light class by removing the “slot” member
- Random optimizations

325 Diff Diff IonutCava picture IonutCava Wed 17 Sep, 2014 20:06:13 +0000

[Ionut]
- Reworked transform system:
— Parent transform chain system moved from Transform class to the PhysicsComponent
— PhysicsComponent now returns all transform values needed both global and local (still needs heavy optimization and caching)

- Reworked SceneGraph node management:
— Proper ref counting of SceneNodes and proper removing of resource (ResourceCache is now empty on destruction, as it should be)
— Removed parent transform tracking as that’s the PhysicsComponent’s responsibility
— Only nodes loaded via the ResourceCache are allowed to be added to the SceneGraph (added proper loaders for Impostors, Sky, etc)

- Optimized some of the math classes (mat4, mat3)

321 Diff Diff IonutCava picture IonutCava Wed 03 Sep, 2014 22:05:15 +0000

[Ionut]
- Added support (and enabled by default) for the EASTL library (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2271.html / https://github.com/paulhodge/EASTL)
— Strings, vectors and hash_maps can be combined from EASTL, STL and Boost (not all combinations work. e.g. EASTL strings with STL/Boost containers due to the lack of a proper hash function)

318 Diff Diff IonutCava picture IonutCava Sat 30 Aug, 2014 17:35:53 +0000

[Ionut]
- Wrapped the entire code in a “Divide” namespace
- VertexBuffers now call “shrink_to_fit” on all internal data storage
- Improved some vector performance by preferring “emplace_back” instead of “push_back” + proepr usage of reserve / resize
- Wrapped OIS specific types and classes in Divide::Input namespace
- Added the messageBox.layout file (forgot it in the previous few commits)

273 Diff Diff IonutCava picture IonutCava Wed 11 Jun, 2014 20:34:00 +0000

[Ionut] [[BR]]
- Improved batching part2: [[BR]]
— Moved all bone transformation matrices upload from uniform functions in SceneNode to Shader Storage Buffers in AnimationController class with updates controlled by SceneGraphNode’s AnimationComponent [[BR]]
-— No double-buffering or efficient mapping of data yet. Just raw buffer updates [[BR]]
— Replaced all RenderStateBlock* pointers with I64 hash values [[BR]]
-— Will be used later in draw commands as per-shader state hash [[BR]]
— Moved getShaderProgram from Material to Material::ShaderInfo [[BR]]
-— Improved redundant uniform checks [[BR]]
— Improved texture unit changing in case of redundant texture bind case (i.e. skip changing the texture unit) [[BR]]
[[BR]]
- Improved float and double comparison functions using algorithms described in http://randomascii.wordpress.com/2012/02/13/dont-store-that-in-a-float/ [[BR]]
- Added a new utility function, DIVIDE_ASSERT, to more easily bind an assert check with a specific message [[BR]]
- Added missing files from Forward+ renderer’s initial code [[BR]]

272 IonutCava picture IonutCava Wed 11 Jun, 2014 11:30:51 +0000

[Ionut] [[BR]]
- Added initial code for Forward+ rendering (grid based light culling) [[BR]]
- Simplified Light class [[BR]]
- Moved more light uniform data to ShaderBuffers [[BR]]
- Double buffered grass rendering [[BR]]
- Added a better attribute interface to GenericVertexData [[BR]]
- Fixed screenshot capture [[BR]]
- Fixed texture double-bind checks [[BR]]