bool BlenderSession::builtin_image_pixels(const string &builtin_name, void *builtin_data, unsigned char *pixels)
{
int frame = builtin_image_frame(builtin_name);
PointerRNA ptr;
RNA_id_pointer_create((ID*)builtin_data, &ptr);
BL::Image b_image(ptr);
if(b_image) {
int width = b_image.size()[0];
int height = b_image.size()[1];
int channels = b_image.channels();
unsigned char *image_pixels;
image_pixels = image_get_pixels_for_frame(b_image, frame);
if(image_pixels) {
memcpy(pixels, image_pixels, width * height * channels * sizeof(unsigned char));
MEM_freeN(image_pixels);
}
else {
if(channels == 1) {
memset(pixels, 0, width * height * sizeof(unsigned char));
}
else {
unsigned char *cp = pixels;
for(int i = 0; i < width * height; i++, cp += channels) {
cp[0] = 255;
cp[1] = 0;
cp[2] = 255;
if(channels == 4)
cp[3] = 255;
}
}
}
/* premultiply, byte images are always straight for blender */
unsigned char *cp = pixels;
for(int i = 0; i < width * height; i++, cp += channels) {
cp[0] = (cp[0] * cp[3]) >> 8;
cp[1] = (cp[1] * cp[3]) >> 8;
cp[2] = (cp[2] * cp[3]) >> 8;
}
return true;
}
return false;
}
bool BlenderSession::builtin_image_pixels(const string &builtin_name, unsigned char *pixels)
{
string name;
int frame;
builtin_name_split(builtin_name, name, frame);
BL::Image b_image = b_data.images[name];
if(b_image) {
int width = b_image.size()[0];
int height = b_image.size()[1];
int channels = b_image.channels();
unsigned char *image_pixels;
image_pixels = image_get_pixels_for_frame(b_image, frame);
if(image_pixels) {
memcpy(pixels, image_pixels, width * height * channels * sizeof(unsigned char));
MEM_freeN(image_pixels);
}
else {
if(channels == 1) {
memset(pixels, 0, width * height * sizeof(unsigned char));
}
else {
unsigned char *cp = pixels;
for(int i = 0; i < width * height; i++, cp += channels) {
cp[0] = 255;
cp[1] = 0;
cp[2] = 255;
if(channels == 4)
cp[3] = 255;
}
}
}
return true;
}
return false;
}
