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Updated the CImg functions and miximage generator for BGRA instead of RGBA pixel format.

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This commit is contained in:
Leon Styhre 2022-10-28 21:39:57 +02:00
parent e1d911f401
commit 126d93709e
4 changed files with 131 additions and 94 deletions
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182
es-app/src/MiximageGenerator.cpp
View file

@ -111,14 +111,14 @@ void MiximageGenerator::startThread(std::promise<bool>* miximagePromise)
bool MiximageGenerator::generateImage() bool MiximageGenerator::generateImage()
{ {
FREE_IMAGE_FORMAT fileFormat; FREE_IMAGE_FORMAT fileFormat;
FIBITMAP* screenshotFile = nullptr; FIBITMAP* screenshotFile {nullptr};
FIBITMAP* marqueeFile = nullptr; FIBITMAP* marqueeFile {nullptr};
FIBITMAP* boxFile = nullptr; FIBITMAP* boxFile {nullptr};
FIBITMAP* physicalMediaFile = nullptr; FIBITMAP* physicalMediaFile {nullptr};
unsigned int fileWidth = 0; unsigned int fileWidth {0};
unsigned int fileHeight = 0; unsigned int fileHeight {0};
unsigned int filePitch = 0; unsigned int filePitch {0};
#if defined(_WIN64) #if defined(_WIN64)
fileFormat = FreeImage_GetFileTypeU(Utils::String::stringToWideString(mScreenshotPath).c_str()); fileFormat = FreeImage_GetFileTypeU(Utils::String::stringToWideString(mScreenshotPath).c_str());
@ -336,19 +336,19 @@ bool MiximageGenerator::generateImage()
resolutionMultiplier = 2; resolutionMultiplier = 2;
} }
const unsigned int screenshotWidth = 530 * resolutionMultiplier; const unsigned int screenshotWidth {530 * resolutionMultiplier};
const unsigned int screenshotOffset = 20 * resolutionMultiplier; const unsigned int screenshotOffset {20 * resolutionMultiplier};
const unsigned int screenshotFrameWidth = 6 * resolutionMultiplier; const unsigned int screenshotFrameWidth {6 * resolutionMultiplier};
const unsigned int screenshotHeight = 400 * resolutionMultiplier; const unsigned int screenshotHeight {400 * resolutionMultiplier};
// These sizes are increased slightly when adding the drop shadow. // These sizes are increased slightly when adding the drop shadow.
const unsigned int marqueeTargetWidth = 310 * resolutionMultiplier; const unsigned int marqueeTargetWidth {310 * resolutionMultiplier};
const unsigned int marqueeTargetHeight = 230 * resolutionMultiplier; const unsigned int marqueeTargetHeight {230 * resolutionMultiplier};
unsigned int boxTargetWidth = 0; unsigned int boxTargetWidth {0};
unsigned int boxTargetHeight = 0; unsigned int boxTargetHeight {0};
unsigned int coverTargetWidth = 0; unsigned int coverTargetWidth {0};
unsigned int physicalMediaTargetWidth = 0; unsigned int physicalMediaTargetWidth {0};
unsigned int physicalMediaTargetHeight = 0; unsigned int physicalMediaTargetHeight {0};
if (Settings::getInstance()->getString("MiximageBoxSize") == "small") { if (Settings::getInstance()->getString("MiximageBoxSize") == "small") {
boxTargetWidth = 264 * resolutionMultiplier; boxTargetWidth = 264 * resolutionMultiplier;
@ -379,12 +379,12 @@ bool MiximageGenerator::generateImage()
physicalMediaTargetHeight = 120 * resolutionMultiplier; physicalMediaTargetHeight = 120 * resolutionMultiplier;
} }
const unsigned int marqueeShadowSize = 6 * resolutionMultiplier; const unsigned int marqueeShadowSize {6 * resolutionMultiplier};
const unsigned int boxShadowSize = 6 * resolutionMultiplier; const unsigned int boxShadowSize {6 * resolutionMultiplier};
const unsigned int physicalMediaShadowSize = 6 * resolutionMultiplier; const unsigned int physicalMediaShadowSize {6 * resolutionMultiplier};
if (FreeImage_GetBPP(screenshotFile) != 32) { if (FreeImage_GetBPP(screenshotFile) != 32) {
FIBITMAP* screenshotTemp = FreeImage_ConvertTo32Bits(screenshotFile); FIBITMAP* screenshotTemp {FreeImage_ConvertTo32Bits(screenshotFile)};
FreeImage_Unload(screenshotFile); FreeImage_Unload(screenshotFile);
screenshotFile = screenshotTemp; screenshotFile = screenshotTemp;
} }
@ -396,12 +396,12 @@ bool MiximageGenerator::generateImage()
std::vector<unsigned char> screenshotVector(fileWidth * fileHeight * 4); std::vector<unsigned char> screenshotVector(fileWidth * fileHeight * 4);
FreeImage_ConvertToRawBits(reinterpret_cast<BYTE*>(&screenshotVector.at(0)), screenshotFile, FreeImage_ConvertToRawBits(reinterpret_cast<BYTE*>(&screenshotVector.at(0)), screenshotFile,
filePitch, 32, FI_RGBA_RED, FI_RGBA_GREEN, FI_RGBA_BLUE, 1); filePitch, 32, FI_RGBA_BLUE, FI_RGBA_GREEN, FI_RGBA_RED, 1);
CImg<unsigned char> screenshotImage(fileWidth, fileHeight, 1, 4, 0); CImg<unsigned char> screenshotImage(fileWidth, fileHeight, 1, 4, 0);
// Convert the RGBA image to CImg internal format. // Convert the RGBA image to CImg internal format.
Utils::CImg::convertRGBAToCImg(screenshotVector, screenshotImage); Utils::CImg::convertBGRAToCImg(screenshotVector, screenshotImage);
screenshotVector.clear(); screenshotVector.clear();
if (Settings::getInstance()->getBool("MiximageRemoveLetterboxes")) if (Settings::getInstance()->getBool("MiximageRemoveLetterboxes"))
@ -426,17 +426,17 @@ bool MiximageGenerator::generateImage()
// of the miximage. // of the miximage.
screenshotImage.get_shared_channel(3).fill(255); screenshotImage.get_shared_channel(3).fill(255);
int xPosScreenshot = 0; int xPosScreenshot {0};
int yPosScreenshot = 0; int yPosScreenshot {0};
int xPosMarquee = 0; int xPosMarquee {0};
int yPosMarquee = 0; int yPosMarquee {0};
int xPosBox = 0; int xPosBox {0};
int yPosBox = 0; int yPosBox {0};
int xPosPhysicalMedia = 0; int xPosPhysicalMedia {0};
int yPosPhysicalMedia = 0; int yPosPhysicalMedia {0};
CImg<unsigned char> canvasImage(mWidth, mHeight, 1, 4, 0); CImg<unsigned char> canvasImage(mWidth, mHeight, 1, 4, 0);
@ -459,7 +459,7 @@ bool MiximageGenerator::generateImage()
if (mMarquee) { if (mMarquee) {
if (FreeImage_GetBPP(marqueeFile) != 32) { if (FreeImage_GetBPP(marqueeFile) != 32) {
FIBITMAP* marqueeTemp = FreeImage_ConvertTo32Bits(marqueeFile); FIBITMAP* marqueeTemp {FreeImage_ConvertTo32Bits(marqueeFile)};
FreeImage_Unload(marqueeFile); FreeImage_Unload(marqueeFile);
marqueeFile = marqueeTemp; marqueeFile = marqueeTemp;
} }
@ -471,16 +471,16 @@ bool MiximageGenerator::generateImage()
std::vector<unsigned char> marqueeVector(fileWidth * fileHeight * 4); std::vector<unsigned char> marqueeVector(fileWidth * fileHeight * 4);
FreeImage_ConvertToRawBits(reinterpret_cast<BYTE*>(&marqueeVector.at(0)), marqueeFile, FreeImage_ConvertToRawBits(reinterpret_cast<BYTE*>(&marqueeVector.at(0)), marqueeFile,
filePitch, 32, FI_RGBA_RED, FI_RGBA_GREEN, FI_RGBA_BLUE, 1); filePitch, 32, FI_RGBA_BLUE, FI_RGBA_GREEN, FI_RGBA_RED, 1);
marqueeImage = CImg<unsigned char>(FreeImage_GetWidth(marqueeFile), marqueeImage = CImg<unsigned char>(FreeImage_GetWidth(marqueeFile),
FreeImage_GetHeight(marqueeFile), 1, 4, 0); FreeImage_GetHeight(marqueeFile), 1, 4, 0);
Utils::CImg::convertRGBAToCImg(marqueeVector, marqueeImage); Utils::CImg::convertBGRAToCImg(marqueeVector, marqueeImage);
Utils::CImg::removeTransparentPadding(marqueeImage); Utils::CImg::removeTransparentPadding(marqueeImage);
unsigned int marqueeWidth = static_cast<unsigned int>(marqueeImage.width()); unsigned int marqueeWidth {static_cast<unsigned int>(marqueeImage.width())};
unsigned int marqueeHeight = static_cast<unsigned int>(marqueeImage.height()); unsigned int marqueeHeight {static_cast<unsigned int>(marqueeImage.height())};
calculateMarqueeSize(marqueeTargetWidth, marqueeTargetHeight, marqueeWidth, marqueeHeight); calculateMarqueeSize(marqueeTargetWidth, marqueeTargetHeight, marqueeWidth, marqueeHeight);
@ -501,7 +501,7 @@ bool MiximageGenerator::generateImage()
if (mBox3D || mCover) { if (mBox3D || mCover) {
if (FreeImage_GetBPP(boxFile) != 32) { if (FreeImage_GetBPP(boxFile) != 32) {
FIBITMAP* boxTemp = FreeImage_ConvertTo32Bits(boxFile); FIBITMAP* boxTemp {FreeImage_ConvertTo32Bits(boxFile)};
FreeImage_Unload(boxFile); FreeImage_Unload(boxFile);
boxFile = boxTemp; boxFile = boxTemp;
} }
@ -513,24 +513,25 @@ bool MiximageGenerator::generateImage()
std::vector<unsigned char> boxVector(fileWidth * fileHeight * 4); std::vector<unsigned char> boxVector(fileWidth * fileHeight * 4);
FreeImage_ConvertToRawBits(reinterpret_cast<BYTE*>(&boxVector.at(0)), boxFile, filePitch, FreeImage_ConvertToRawBits(reinterpret_cast<BYTE*>(&boxVector.at(0)), boxFile, filePitch,
32, FI_RGBA_RED, FI_RGBA_GREEN, FI_RGBA_BLUE, 1); 32, FI_RGBA_BLUE, FI_RGBA_GREEN, FI_RGBA_RED, 1);
boxImage = boxImage =
CImg<unsigned char>(FreeImage_GetWidth(boxFile), FreeImage_GetHeight(boxFile), 1, 4); CImg<unsigned char>(FreeImage_GetWidth(boxFile), FreeImage_GetHeight(boxFile), 1, 4);
Utils::CImg::convertRGBAToCImg(boxVector, boxImage); Utils::CImg::convertBGRAToCImg(boxVector, boxImage);
Utils::CImg::removeTransparentPadding(boxImage); Utils::CImg::removeTransparentPadding(boxImage);
float sizeRatio = float sizeRatio {static_cast<float>(boxImage.width()) /
static_cast<float>(boxImage.width()) / static_cast<float>(boxImage.height()); static_cast<float>(boxImage.height())};
if (sizeRatio > 1.14f && Settings::getInstance()->getBool("MiximageRotateHorizontalBoxes")) if (sizeRatio > 1.14f && Settings::getInstance()->getBool("MiximageRotateHorizontalBoxes"))
boxImage.rotate(90.0f); boxImage.rotate(90.0f);
float scaleFactor = float scaleFactor {static_cast<float>(boxTargetHeight) /
static_cast<float>(boxTargetHeight) / static_cast<float>(boxImage.height()); static_cast<float>(boxImage.height())};
unsigned int width = static_cast<int>(static_cast<float>(boxImage.width()) * scaleFactor); unsigned int width {
unsigned int targetWidth = 0; static_cast<unsigned int>(static_cast<float>(boxImage.width()) * scaleFactor)};
unsigned int targetWidth {0};
// We make this distinction as some cover images are in square format and would cover // We make this distinction as some cover images are in square format and would cover
// too much surface otherwise. // too much surface otherwise.
@ -541,7 +542,7 @@ bool MiximageGenerator::generateImage()
if (width > targetWidth) { if (width > targetWidth) {
scaleFactor = static_cast<float>(targetWidth) / static_cast<float>(boxImage.width()); scaleFactor = static_cast<float>(targetWidth) / static_cast<float>(boxImage.width());
int height = static_cast<int>(static_cast<float>(boxImage.height()) * scaleFactor); int height {static_cast<int>(static_cast<float>(boxImage.height()) * scaleFactor)};
// We use Lanczos3 which is the highest quality resampling method available. // We use Lanczos3 which is the highest quality resampling method available.
boxImage.resize(targetWidth, height, 1, 4, 6); boxImage.resize(targetWidth, height, 1, 4, 6);
} }
@ -562,7 +563,7 @@ bool MiximageGenerator::generateImage()
if (mPhysicalMedia) { if (mPhysicalMedia) {
if (FreeImage_GetBPP(physicalMediaFile) != 32) { if (FreeImage_GetBPP(physicalMediaFile) != 32) {
FIBITMAP* physicalMediaTemp = FreeImage_ConvertTo32Bits(physicalMediaFile); FIBITMAP* physicalMediaTemp {FreeImage_ConvertTo32Bits(physicalMediaFile)};
FreeImage_Unload(physicalMediaFile); FreeImage_Unload(physicalMediaFile);
physicalMediaFile = physicalMediaTemp; physicalMediaFile = physicalMediaTemp;
} }
@ -574,26 +575,26 @@ bool MiximageGenerator::generateImage()
std::vector<unsigned char> physicalMediaVector(fileWidth * fileHeight * 4); std::vector<unsigned char> physicalMediaVector(fileWidth * fileHeight * 4);
FreeImage_ConvertToRawBits(reinterpret_cast<BYTE*>(&physicalMediaVector.at(0)), FreeImage_ConvertToRawBits(reinterpret_cast<BYTE*>(&physicalMediaVector.at(0)),
physicalMediaFile, filePitch, 32, FI_RGBA_RED, FI_RGBA_GREEN, physicalMediaFile, filePitch, 32, FI_RGBA_BLUE, FI_RGBA_GREEN,
FI_RGBA_BLUE, 1); FI_RGBA_RED, 1);
physicalMediaImage = CImg<unsigned char>(FreeImage_GetWidth(physicalMediaFile), physicalMediaImage = CImg<unsigned char>(FreeImage_GetWidth(physicalMediaFile),
FreeImage_GetHeight(physicalMediaFile), 1, 4, 0); FreeImage_GetHeight(physicalMediaFile), 1, 4, 0);
Utils::CImg::convertRGBAToCImg(physicalMediaVector, physicalMediaImage); Utils::CImg::convertBGRAToCImg(physicalMediaVector, physicalMediaImage);
Utils::CImg::removeTransparentPadding(physicalMediaImage); Utils::CImg::removeTransparentPadding(physicalMediaImage);
// Make sure the image size is not exceeding either the target width or height. // Make sure the image size is not exceeding either the target width or height.
float scaleFactorX = static_cast<float>(physicalMediaTargetWidth) / float scaleFactorX {static_cast<float>(physicalMediaTargetWidth) /
static_cast<float>(physicalMediaImage.width()); static_cast<float>(physicalMediaImage.width())};
float scaleFactorY = static_cast<float>(physicalMediaTargetHeight) / float scaleFactorY {static_cast<float>(physicalMediaTargetHeight) /
static_cast<float>(physicalMediaImage.height()); static_cast<float>(physicalMediaImage.height())};
float scaleFactor = std::min(scaleFactorX, scaleFactorY); float scaleFactor {std::min(scaleFactorX, scaleFactorY)};
unsigned int width = unsigned int width {static_cast<unsigned int>(
static_cast<int>(static_cast<float>(physicalMediaImage.width()) * scaleFactor); static_cast<float>(physicalMediaImage.width()) * scaleFactor)};
unsigned int height = unsigned int height {static_cast<unsigned int>(
static_cast<int>(static_cast<float>(physicalMediaImage.height()) * scaleFactor); static_cast<float>(physicalMediaImage.height()) * scaleFactor)};
// We use Lanczos3 which is the highest quality resampling method available. // We use Lanczos3 which is the highest quality resampling method available.
physicalMediaImage.resize(width, height, 1, 4, 6); physicalMediaImage.resize(width, height, 1, 4, 6);
@ -632,8 +633,8 @@ bool MiximageGenerator::generateImage()
yPosScreenshot + screenshotHeight - 2, frameColor); yPosScreenshot + screenshotHeight - 2, frameColor);
// We draw circles in order to get rounded corners for the frame. // We draw circles in order to get rounded corners for the frame.
const unsigned int circleRadius = 8 * resolutionMultiplier; const unsigned int circleRadius {8 * resolutionMultiplier};
const unsigned int circleOffset = 2 * resolutionMultiplier; const unsigned int circleOffset {2 * resolutionMultiplier};
// Upper left corner. // Upper left corner.
frameImage.draw_circle(xPosScreenshot + circleOffset, yPosScreenshot + circleOffset, frameImage.draw_circle(xPosScreenshot + circleOffset, yPosScreenshot + circleOffset,
@ -668,19 +669,19 @@ bool MiximageGenerator::generateImage()
std::vector<unsigned char> canvasVector; std::vector<unsigned char> canvasVector;
// Convert the image from CImg internal format. // Convert the image from CImg internal format.
Utils::CImg::convertCImgToRGBA(canvasImage, canvasVector); Utils::CImg::convertCImgToBGRA(canvasImage, canvasVector);
FIBITMAP* mixImage = nullptr; FIBITMAP* mixImage {nullptr};
mixImage = FreeImage_ConvertFromRawBits(&canvasVector.at(0), canvasImage.width(), mixImage = FreeImage_ConvertFromRawBits(&canvasVector.at(0), canvasImage.width(),
canvasImage.height(), canvasImage.width() * 4, 32, canvasImage.height(), canvasImage.width() * 4, 32,
FI_RGBA_RED, FI_RGBA_GREEN, FI_RGBA_BLUE); FI_RGBA_BLUE, FI_RGBA_GREEN, FI_RGBA_RED);
#if defined(_WIN64) #if defined(_WIN64)
bool savedImage = bool savedImage {FreeImage_SaveU(FIF_PNG, mixImage,
(FreeImage_SaveU(FIF_PNG, mixImage, Utils::String::stringToWideString(getSavePath()).c_str()) !=
Utils::String::stringToWideString(getSavePath()).c_str()) != 0); 0};
#else #else
bool savedImage = (FreeImage_Save(FIF_PNG, mixImage, getSavePath().c_str()) != 0); bool savedImage {FreeImage_Save(FIF_PNG, mixImage, getSavePath().c_str()) != 0};
#endif #endif
if (!savedImage) { if (!savedImage) {
@ -705,14 +706,14 @@ void MiximageGenerator::calculateMarqueeSize(const unsigned int& targetWidth,
unsigned int& width, unsigned int& width,
unsigned int& height) unsigned int& height)
{ {
unsigned int adjustedTargetWidth = 0; unsigned int adjustedTargetWidth {0};
float widthModifier = 0.5f; float widthModifier {0.5f};
float scaleFactor = 0.0f; float scaleFactor {0.0f};
// The idea is to adjust the size of the marquee based on its surface area, so that // The idea is to adjust the size of the marquee based on its surface area, so that
// wider but shorter images get a larger width than taller images in order to use // wider but shorter images get a larger width than taller images in order to use
// an approximately equivalent amount of space on the miximage. // an approximately equivalent amount of space on the miximage.
float widthRatio = static_cast<float>(width) / static_cast<float>(height); float widthRatio {static_cast<float>(width) / static_cast<float>(height)};
widthModifier = glm::clamp(widthModifier + widthRatio / 6.5f, 0.0f, 1.0f); widthModifier = glm::clamp(widthModifier + widthRatio / 6.5f, 0.0f, 1.0f);
@ -737,18 +738,18 @@ void MiximageGenerator::sampleFrameColor(CImg<unsigned char>& screenshotImage,
unsigned char (&frameColor)[4]) unsigned char (&frameColor)[4])
{ {
// Calculate the number of samples relative to the configured resolution so we get // Calculate the number of samples relative to the configured resolution so we get
// the same result regardless of miximage target size seting. // the same result regardless of miximage target size setting.
unsigned int samples = static_cast<int>(static_cast<float>(mWidth) * 0.03125f); unsigned int samples {static_cast<unsigned int>(static_cast<float>(mWidth) * 0.03125f)};
unsigned int red = 0; unsigned int red {0};
unsigned int green = 0; unsigned int green {0};
unsigned int blue = 0; unsigned int blue {0};
unsigned int redLine = 0; unsigned int redLine {0};
unsigned int greenLine = 0; unsigned int greenLine {0};
unsigned int blueLine = 0; unsigned int blueLine {0};
unsigned int counter = 0; unsigned int counter {0};
// This is a very simple method to get an average pixel value. It's limited in that it // This is a very simple method to get an average pixel value. It's limited in that it
// does not consider dominant colors and such, so the result could possibly be a value // does not consider dominant colors and such, so the result could possibly be a value
@ -770,16 +771,19 @@ void MiximageGenerator::sampleFrameColor(CImg<unsigned char>& screenshotImage,
} }
} }
unsigned char redC = glm::clamp(static_cast<int>(redLine / 255), 0, 255); unsigned char redC {
unsigned char greenC = glm::clamp(static_cast<int>(greenLine / 255), 0, 255); static_cast<unsigned char>(glm::clamp(static_cast<int>(redLine / 255), 0, 255))};
unsigned char blueC = glm::clamp(static_cast<int>(blueLine / 255), 0, 255); unsigned char greenC {
static_cast<unsigned char>(glm::clamp(static_cast<int>(greenLine / 255), 0, 255))};
unsigned char blueC {
static_cast<unsigned char>(glm::clamp(static_cast<int>(blueLine / 255), 0, 255))};
// Convert to the HSL color space to be able to modify saturation and lightness. // Convert to the HSL color space to be able to modify saturation and lightness.
CImg<float> colorHSL = CImg<>(1, 1, 1, 3).fill(redC, greenC, blueC).RGBtoHSL(); CImg<float> colorHSL = CImg<>(1, 1, 1, 3).fill(redC, greenC, blueC).RGBtoHSL();
// float hue = colorHSL(0, 0, 0, 0); // float hue = colorHSL(0, 0, 0, 0);
float saturation = colorHSL(0, 0, 0, 1); float saturation {colorHSL(0, 0, 0, 1)};
float lightness = colorHSL(0, 0, 0, 2); float lightness {colorHSL(0, 0, 0, 2)};
// Decrease saturation slightly and increase lightness a bit, these adjustments // Decrease saturation slightly and increase lightness a bit, these adjustments
// makes the end result look better than the raw average pixel value. Also clamp // makes the end result look better than the raw average pixel value. Also clamp
@ -798,7 +802,7 @@ void MiximageGenerator::sampleFrameColor(CImg<unsigned char>& screenshotImage,
std::string MiximageGenerator::getSavePath() const std::string MiximageGenerator::getSavePath() const
{ {
const std::string name = Utils::FileSystem::getStem(mGame->getPath()); const std::string name {Utils::FileSystem::getStem(mGame->getPath())};
std::string subFolders; std::string subFolders;
// Extract possible subfolders from the path. // Extract possible subfolders from the path.
@ -806,7 +810,7 @@ std::string MiximageGenerator::getSavePath() const
subFolders = Utils::String::replace(Utils::FileSystem::getParent(mGame->getPath()), subFolders = Utils::String::replace(Utils::FileSystem::getParent(mGame->getPath()),
mGame->getSystemEnvData()->mStartPath, ""); mGame->getSystemEnvData()->mStartPath, "");
std::string path = FileData::getMediaDirectory(); std::string path {FileData::getMediaDirectory()};
if (!Utils::FileSystem::exists(path)) if (!Utils::FileSystem::exists(path))
Utils::FileSystem::createDirectory(path); Utils::FileSystem::createDirectory(path);

8
es-core/src/components/ImageComponent.cpp
View file

@ -187,9 +187,9 @@ void ImageComponent::cropTransparentPadding(const float maxSizeX, const float ma
if (mSize == glm::vec2 {0.0f, 0.0f}) if (mSize == glm::vec2 {0.0f, 0.0f})
return; return;
std::vector<unsigned char> imageRGBA {mTexture.get()->getRawRGBAData()}; std::vector<unsigned char> imageBGRA {mTexture.get()->getRawRGBAData()};
if (imageRGBA.size() == 0) if (imageBGRA.size() == 0)
return; return;
glm::ivec2 imageSize {mTexture.get()->getSize()}; glm::ivec2 imageSize {mTexture.get()->getSize()};
@ -198,8 +198,8 @@ void ImageComponent::cropTransparentPadding(const float maxSizeX, const float ma
int paddingCoords[4] {0, 0, 0, 0}; int paddingCoords[4] {0, 0, 0, 0};
// We need to convert our RGBA data to the CImg internal format as CImg does not interleave // We need to convert our RGBA data to the CImg internal format as CImg does not interleave
// the pixels (as in RGBARGBARGBA). // the pixels (as in BGRABGRABGRA).
Utils::CImg::convertRGBAToCImg(imageRGBA, imageCImg); Utils::CImg::convertBGRAToCImg(imageBGRA, imageCImg);
// This will give us the coordinates for the fully transparent areas. // This will give us the coordinates for the fully transparent areas.
Utils::CImg::getTransparentPaddingCoords(imageCImg, paddingCoords); Utils::CImg::getTransparentPaddingCoords(imageCImg, paddingCoords);

31
es-core/src/utils/CImgUtil.cpp
View file

@ -12,10 +12,39 @@ namespace Utils
{ {
namespace CImg namespace CImg
{ {
void convertBGRAToCImg(const std::vector<unsigned char>& imageBGRA,
cimg_library::CImg<unsigned char>& image)
{
// CImg does not interleave pixels as in BGRABGRABGRA so a conversion is required.
int counter = 0;
for (int r = 0; r < image.height(); ++r) {
for (int c = 0; c < image.width(); ++c) {
image(c, r, 0, 0) = imageBGRA[counter + 0];
image(c, r, 0, 1) = imageBGRA[counter + 1];
image(c, r, 0, 2) = imageBGRA[counter + 2];
image(c, r, 0, 3) = imageBGRA[counter + 3];
counter += 4;
}
}
}
void convertCImgToBGRA(const cimg_library::CImg<unsigned char>& image,
std::vector<unsigned char>& imageBGRA)
{
for (int r = image.height() - 1; r >= 0; --r) {
for (int c = 0; c < image.width(); ++c) {
imageBGRA.emplace_back((unsigned char)image(c, r, 0, 0));
imageBGRA.emplace_back((unsigned char)image(c, r, 0, 1));
imageBGRA.emplace_back((unsigned char)image(c, r, 0, 2));
imageBGRA.emplace_back((unsigned char)image(c, r, 0, 3));
}
}
}
void convertRGBAToCImg(const std::vector<unsigned char>& imageRGBA, void convertRGBAToCImg(const std::vector<unsigned char>& imageRGBA,
cimg_library::CImg<unsigned char>& image) cimg_library::CImg<unsigned char>& image)
{ {
// CImg does not interleave the pixels as in RGBARGBARGBA so a conversion is required. // CImg does not interleave pixels as in RGBARGBARGBA so a conversion is required.
int counter = 0; int counter = 0;
for (int r = 0; r < image.height(); ++r) { for (int r = 0; r < image.height(); ++r) {
for (int c = 0; c < image.width(); ++c) { for (int c = 0; c < image.width(); ++c) {

4
es-core/src/utils/CImgUtil.h
View file

@ -20,6 +20,10 @@ namespace Utils
{ {
namespace CImg namespace CImg
{ {
void convertBGRAToCImg(const std::vector<unsigned char>& imageBGRA,
cimg_library::CImg<unsigned char>& image);
void convertCImgToBGRA(const cimg_library::CImg<unsigned char>& image,
std::vector<unsigned char>& imageBGRA);
void convertRGBAToCImg(const std::vector<unsigned char>& imageRGBA, void convertRGBAToCImg(const std::vector<unsigned char>& imageRGBA,
cimg_library::CImg<unsigned char>& image); cimg_library::CImg<unsigned char>& image);
void convertCImgToRGBA(const cimg_library::CImg<unsigned char>& image, void convertCImgToRGBA(const cimg_library::CImg<unsigned char>& image,