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Diffstat (limited to 'deps/g3dlite/source/Image3uint8.cpp')
-rw-r--r-- | deps/g3dlite/source/Image3uint8.cpp | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/deps/g3dlite/source/Image3uint8.cpp b/deps/g3dlite/source/Image3uint8.cpp new file mode 100644 index 0000000000..86595bbd1f --- /dev/null +++ b/deps/g3dlite/source/Image3uint8.cpp @@ -0,0 +1,225 @@ +/** + @file Image3uint8.cpp + + @maintainer Morgan McGuire, http://graphics.cs.williams.edu + + @created 2007-01-31 + @edited 2008-01-08 +*/ + +#include "G3D/Image1uint8.h" +#include "G3D/Image3uint8.h" +#include "G3D/Image3.h" +#include "G3D/GImage.h" +#include "G3D/Color1.h" +#include "G3D/Color1uint8.h" +#include "G3D/Color4.h" +#include "G3D/Color4uint8.h" +#include "G3D/ImageFormat.h" + +namespace G3D { + +Image3uint8::Ref Image3uint8::fromImage1uint8(const ReferenceCountedPointer<class Image1uint8>& im) { + return fromArray(im->getCArray(), im->width(), im->height(), im->wrapMode()); +} + + +Image3uint8::Image3uint8(int w, int h, WrapMode wrap) : Map2D<Color3uint8>(w, h, wrap) { + setAll(Color3::black()); +} + + +Image3uint8::Ref Image3uint8::fromGImage(const GImage& im, WrapMode wrap) { + switch (im.channels()) { + case 1: + return fromArray(im.pixel1(), im.width(), im.height(), wrap); + + case 3: + return fromArray(im.pixel3(), im.width(), im.height(), wrap); + + case 4: + return fromArray(im.pixel4(), im.width(), im.height(), wrap); + + default: + debugAssertM(false, "Input GImage must have 1, 3, or 4 channels."); + return NULL; + } +} + + +Image3uint8::Ref Image3uint8::fromImage3(const ReferenceCountedPointer<Image3>& im) { + Ref out = createEmpty(static_cast<WrapMode>(im->wrapMode())); + out->copyArray(im->getCArray(), im->width(), im->height()); + + return out; +} + + +Image3uint8::Ref Image3uint8::createEmpty(int width, int height, WrapMode wrap) { + return new Type(width, height, wrap); +} + + +Image3uint8::Ref Image3uint8::createEmpty(WrapMode wrap) { + return createEmpty(0, 0, wrap); +} + + +Image3uint8::Ref Image3uint8::fromFile(const std::string& filename, WrapMode wrap, GImage::Format fmt) { + Ref out = createEmpty(wrap); + out->load(filename, fmt); + return out; +} + + +Image3uint8::Ref Image3uint8::fromArray(const class Color3uint8* ptr, int w, int h, WrapMode wrap) { + Ref out = createEmpty(wrap); + out->copyArray(ptr, w, h); + return out; +} + + +Image3uint8::Ref Image3uint8::fromArray(const class Color1* ptr, int w, int h, WrapMode wrap) { + Ref out = createEmpty(wrap); + out->copyArray(ptr, w, h); + return out; +} + + +Image3uint8::Ref Image3uint8::fromArray(const class Color1uint8* ptr, int w, int h, WrapMode wrap) { + Ref out = createEmpty(wrap); + out->copyArray(ptr, w, h); + return out; +} + + +Image3uint8::Ref Image3uint8::fromArray(const class Color3* ptr, int w, int h, WrapMode wrap) { + Ref out = createEmpty(wrap); + out->copyArray(ptr, w, h); + return out; +} + + +Image3uint8::Ref Image3uint8::fromArray(const class Color4uint8* ptr, int w, int h, WrapMode wrap) { + Ref out = createEmpty(wrap); + out->copyArray(ptr, w, h); + return out; +} + + +Image3uint8::Ref Image3uint8::fromArray(const class Color4* ptr, int w, int h, WrapMode wrap) { + Ref out = createEmpty(wrap); + out->copyArray(ptr, w, h); + return out; +} + + +void Image3uint8::load(const std::string& filename, GImage::Format fmt) { + copyGImage(GImage(filename, fmt)); + setChanged(true); +} + + +void Image3uint8::copyGImage(const GImage& im) { + switch (im.channels()) { + case 1: + copyArray(im.pixel1(), im.width(), im.height()); + break; + + case 3: + copyArray(im.pixel3(), im.width(), im.height()); + break; + + case 4: + copyArray(im.pixel4(), im.width(), im.height()); + break; + } +} + + +void Image3uint8::copyArray(const Color1uint8* src, int w, int h) { + resize(w, h); + int N = w * h; + + Color3uint8* dst = getCArray(); + for (int i = 0; i < N; ++i) { + dst[i].r = dst[i].g = dst[i].b = src[i].value; + } +} + +void Image3uint8::copyArray(const Color1* src, int w, int h) { + resize(w, h); + int N = w * h; + + Color3uint8* dst = getCArray(); + for (int i = 0; i < N; ++i) { + dst[i].r = dst[i].g = dst[i].b = Color1uint8(src[i]).value; + } +} + + +void Image3uint8::copyArray(const Color3uint8* ptr, int w, int h) { + resize(w, h); + System::memcpy(getCArray(), ptr, w * h * 3); +} + + +void Image3uint8::copyArray(const Color3* src, int w, int h) { + resize(w, h); + int N = w * h; + + Color3uint8* dst = getCArray(); + for (int i = 0; i < N; ++i) { + dst[i] = Color3uint8(src[i]); + } +} + + +void Image3uint8::copyArray(const Color4uint8* ptr, int w, int h) { + resize(w, h); + + // Copy 3/4 bytes + GImage::RGBAtoRGB((const uint8*)ptr, (uint8*)getCArray(), w * h); +} + + +void Image3uint8::copyArray(const Color4* src, int w, int h) { + resize(w, h); + int N = w * h; + + Color3uint8* dst = getCArray(); + for (int i = 0; i < N; ++i) { + dst[i] = Color3uint8(src[i].rgb()); + } +} + + +/** Saves in any of the formats supported by G3D::GImage. */ +void Image3uint8::save(const std::string& filename, GImage::Format fmt) { + GImage im(width(), height(), 3); + System::memcpy(im.byte(), getCArray(), width() * height() * 3); + im.save(filename, fmt); +} + + +ReferenceCountedPointer<class Image1uint8> Image3uint8::getChannel(int c) const { + debugAssert(c >= 0 && c <= 2); + + Image1uint8Ref dst = Image1uint8::createEmpty(width(), height(), wrapMode()); + const Color3uint8* srcArray = getCArray(); + Color1uint8* dstArray = dst->getCArray(); + + const int N = width() * height(); + for (int i = 0; i < N; ++i) { + dstArray[i] = Color1uint8(srcArray[i][c]); + } + + return dst; +} + + +const ImageFormat* Image3uint8::format() const { + return ImageFormat::RGB8(); +} + +} // G3D |