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source/Graphics/Image.cpp: in setPixels() do proper conversion.

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This commit is contained in:
Henrik Hautakoski 2020-10-22 16:52:54 +02:00
parent 4f04a8e7c9
commit 02912b857b
1 changed files with 24 additions and 4 deletions
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26
source/Graphics/Image.cpp
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@ -165,16 +165,36 @@ void Image::flipY()
void Image::setPixels(const void *pixels, PixelFormat format) void Image::setPixels(const void *pixels, PixelFormat format)
{ {
if (format == PixelFormat::PF_RGB) { switch(format) {
case PixelFormat::PF_RGB :
case PixelFormat::PF_32BGR :
m_channels = RGB; m_channels = RGB;
} else if (format == PixelFormat::PF_RGBA) { break;
case PixelFormat::PF_RGBA :
case PixelFormat::PF_32BGRA :
m_channels = RGBA; m_channels = RGBA;
} else if (format == PixelFormat::PF_Alpha) { break;
default :
m_channels = Alpha; m_channels = Alpha;
} }
m_pixels.resize(m_size.y * getStride()); m_pixels.resize(m_size.y * getStride());
if (format == PixelFormat::PF_32BGR || format == PixelFormat::PF_32BGRA) {
const uint8_t *ptr = (const uint8_t *) pixels;
for(int i = 0; i < m_pixels.size(); i += 4) {
m_pixels[i+0] = ptr[2];
m_pixels[i+1] = ptr[1];
m_pixels[i+2] = ptr[0];
if (format == PixelFormat::PF_32BGRA) {
m_pixels[i+3] = ptr[3];
}
ptr += 4;
}
} else {
memcpy(&m_pixels[0], pixels, m_pixels.size()); memcpy(&m_pixels[0], pixels, m_pixels.size());
}
} }
const unsigned char* Image::getPixels() const const unsigned char* Image::getPixels() const