static void sampleImageAtLocation(ImBuf *ibuf, float x, float y, PixelSampler sampler, bool make_linear_rgb, float color[4])
{
if (ibuf->rect_float) {
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(ibuf, NULL, color, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(ibuf, NULL, color, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(ibuf, NULL, color, x, y);
break;
}
}
else {
unsigned char byte_color[4];
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(ibuf, byte_color, NULL, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(ibuf, byte_color, NULL, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(ibuf, byte_color, NULL, x, y);
break;
}
rgba_uchar_to_float(color, byte_color);
if (make_linear_rgb) {
IMB_colormanagement_colorspace_to_scene_linear_v4(color, false, ibuf->rect_colorspace);
}
}
}
void MultilayerColorOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
{
int yi = y;
int xi = x;
if (this->m_imageFloatBuffer == NULL || xi < 0 || yi < 0 || (unsigned int)xi >= this->getWidth() || (unsigned int)yi >= this->getHeight() ) {
zero_v4(output);
}
else {
if (this->m_numberOfChannels == 4) {
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
}
}
else {
int offset = (yi * this->getWidth() + xi) * 3;
copy_v3_v3(output, &this->m_imageFloatBuffer[offset]);
}
}
}
void MovieClipBaseOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
{
ImBuf *ibuf = this->m_movieClipBuffer;
if (ibuf == NULL || x < 0 || y < 0 || x >= this->getWidth() || y >= this->getHeight() ) {
zero_v4(output);
}
else if (ibuf->rect == NULL && ibuf->rect_float == NULL) {
/* Happens for multilayer exr, i.e. */
zero_v4(output);
}
else {
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(ibuf, NULL, output, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(ibuf, NULL, output, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(ibuf, NULL, output, x, y);
break;
}
}
}
void nearest_interpolation(ImBuf *in, ImBuf *out, float x, float y, int xout, int yout)
{
unsigned char *outI = NULL;
float *outF = NULL;
if (in == NULL || (in->rect == NULL && in->rect_float == NULL)) {
return;
}
pixel_from_buffer(out, &outI, &outF, xout, yout); /* gcc warns these could be uninitialized, but its ok */
nearest_interpolation_color(in, outI, outF, x, y);
}
