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150 lines
2.2 KiB
C++
150 lines
2.2 KiB
C++
// This code is in the public domain -- castanyo@yahoo.es
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#include <nvcore/Debug.h>
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#include <nvcore/Ptr.h>
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#include <nvmath/Color.h>
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#include <nvimage/Image.h>
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#include <nvimage/ImageIO.h>
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using namespace nv;
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Image::Image() : m_width(0), m_height(0), m_format(Format_RGB), m_data(NULL)
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{
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}
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Image::Image(const Image & img) : m_data(NULL)
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{
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allocate(img.m_width, img.m_height);
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m_format = img.m_format;
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memcpy(m_data, img.m_data, sizeof(Color32) * m_width * m_height);
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}
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Image::~Image()
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{
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free();
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}
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const Image & Image::operator=(const Image & img)
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{
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allocate(img.m_width, img.m_height);
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m_format = img.m_format;
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memcpy(m_data, img.m_data, sizeof(Color32) * m_width * m_height);
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return *this;
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}
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void Image::allocate(uint w, uint h)
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{
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m_width = w;
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m_height = h;
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m_data = (Color32 *)realloc(m_data, w * h * sizeof(Color32));
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}
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bool Image::load(const char * name)
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{
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free();
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AutoPtr<Image> img(ImageIO::load(name));
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if (img == NULL) {
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return false;
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}
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swap(m_width, img->m_width);
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swap(m_height, img->m_height);
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swap(m_format, img->m_format);
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swap(m_data, img->m_data);
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return true;
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}
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void Image::wrap(void * data, uint w, uint h)
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{
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free();
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m_data = (Color32 *)data;
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m_width = w;
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m_height = h;
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}
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void Image::unwrap()
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{
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m_data = NULL;
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m_width = 0;
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m_height = 0;
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}
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void Image::free()
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{
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::free(m_data);
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m_data = NULL;
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}
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uint Image::width() const
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{
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return m_width;
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}
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uint Image::height() const
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{
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return m_height;
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}
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const Color32 * Image::scanline(uint h) const
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{
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nvDebugCheck(h < m_height);
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return m_data + h * m_width;
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}
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Color32 * Image::scanline(uint h)
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{
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nvDebugCheck(h < m_height);
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return m_data + h * m_width;
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}
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const Color32 * Image::pixels() const
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{
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return m_data;
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}
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Color32 * Image::pixels()
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{
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return m_data;
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}
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const Color32 & Image::pixel(uint idx) const
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{
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nvDebugCheck(idx < m_width * m_height);
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return m_data[idx];
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}
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Color32 & Image::pixel(uint idx)
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{
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nvDebugCheck(idx < m_width * m_height);
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return m_data[idx];
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}
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Image::Format Image::format() const
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{
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return m_format;
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}
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void Image::setFormat(Image::Format f)
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{
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m_format = f;
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}
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void Image::fill(Color32 c)
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{
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const uint size = m_width * m_height;
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for (uint i = 0; i < size; ++i)
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{
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m_data[i] = c;
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}
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}
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