Catcrafts/Crafter.Graphics
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semi opaque

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This commit is contained in:
Jorijn van der Graaf 2025-11-27 00:08:10 +01:00
commit 0329616148
6 changed files with 80 additions and 91 deletions
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22
implementations/Crafter.Graphics-ImageElement.cpp
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@ -34,7 +34,7 @@ ImageElement::ImageElement() : RenderingElementScaling() {
}
ImageElement::ImageElement(const std::string_view imagePath, std::int_fast32_t anchorX, std::int_fast32_t anchorY, std::uint_fast32_t relativeWidth, std::uint_fast32_t relativeHeight, std::int_fast32_t anchorOffsetX, std::int_fast32_t anchorOffsetY, std::int_fast32_t z, bool ignoreScaling) : RenderingElementScaling(false, anchorX, anchorY, relativeWidth, relativeHeight, anchorOffsetX, anchorOffsetY, z, ignoreScaling) {
ImageElement::ImageElement(const std::string_view imagePath, std::int_fast32_t anchorX, std::int_fast32_t anchorY, std::uint_fast32_t relativeWidth, std::uint_fast32_t relativeHeight, std::int_fast32_t anchorOffsetX, std::int_fast32_t anchorOffsetY, std::int_fast32_t z, bool ignoreScaling) : RenderingElementScaling(OpaqueType::FullyOpaque, anchorX, anchorY, relativeWidth, relativeHeight, anchorOffsetX, anchorOffsetY, z, ignoreScaling) {
RenderImage(imagePath);
}
@ -42,11 +42,12 @@ void ImageElement::RenderImage(const std::string_view path) {
std::filesystem::path abs = std::filesystem::absolute(path);
int xSize;
int ySize;
int channels;
unsigned char* bgData = stbi_load(abs.string().c_str(), &xSize, &ySize, &channels, 4);
unsigned char* bgData = stbi_load(abs.string().c_str(), &xSize, &ySize, nullptr, 4);
ResizeBuffer(xSize, ySize);
opaque = OpaqueType::FullyOpaque;
for(std::uint_fast32_t x = 0; x < xSize; x++) {
for(std::uint_fast32_t y = 0; y < ySize; y++) {
std::uint_fast32_t idx = (x*ySize+y)*4;
@ -57,7 +58,16 @@ void ImageElement::RenderImage(const std::string_view path) {
}
}
if(channels != 4) {
opaque = true;
}
for(std::uint_fast32_t i = 0; i < xSize*ySize; i++) {
if(buffer[i].a != 255) {
opaque = OpaqueType::SemiOpaque;
for(std::uint_fast32_t i2 = 0; i2 < xSize*ySize; i2++) {
if(buffer[i2].a != 0 && buffer[i2].a != 255) {
opaque = OpaqueType::Transparent;
return;
}
}
return;
}
}
}