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create_palette_from_rgb(): avoid processing the same (linked) image

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This commit is contained in:
David Capello 2015-01-22 11:52:49 -03:00
parent 9740cfd08c
commit ad8ed256de
1 changed files with 15 additions and 10 deletions
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25
src/render/quantization.cpp
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@ -26,6 +26,7 @@
#include <algorithm>
#include <limits>
#include <vector>
#include <map>
namespace render {
@ -49,7 +50,6 @@ Palette* create_palette_from_rgb(
palette = new Palette(frame_t(0), 256);
bool has_background_layer = (sprite->backgroundLayer() != NULL);
Image* flat_image;
ImagesCollector images(
sprite->folder(), // All layers
@ -58,24 +58,29 @@ Palette* create_palette_from_rgb(
false); // forWrite=false, read only
// Add a flat image with the current sprite's frame rendered
flat_image = Image::create(sprite->pixelFormat(),
sprite->width(), sprite->height());
ImageRef flat_image(Image::create(sprite->pixelFormat(),
sprite->width(), sprite->height()));
render::Render().renderSprite(flat_image, sprite, frameNumber);
// Create an array of images
size_t nimage = images.size() + 1; // +1 for flat_image
std::vector<Image*> image_array(nimage);
std::vector<Image*> image_array;
std::map<ObjectId, Image*> used_images;
size_t c = 0;
for (ImagesCollector::ItemsIterator it=images.begin(); it!=images.end(); ++it)
image_array[c++] = it->image();
image_array[c++] = flat_image; // The 'flat_image'
for (auto it=images.begin(); it!=images.end(); ++it) {
Image* image = it->image();
ObjectId imageId = image->id();
if (used_images.find(imageId) == used_images.end()) {
used_images.insert(std::make_pair(imageId, image));
image_array.push_back(image);
}
}
image_array.push_back(flat_image);
// Generate an optimized palette for all images
create_palette_from_images(image_array, palette, has_background_layer);
delete flat_image;
return palette;
}