63 lines
1.1 KiB
C++
63 lines
1.1 KiB
C++
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#include "./icon_generator.hpp"
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#include <qoi/qoi.h>
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#include <cstdlib>
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namespace {
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#include "../res/icon/tomato_v1_256.qoi.h"
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}
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namespace IconGenerator {
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SDL_Surface* base(void) {
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//ImageLoaderQOI{}.loadFromMemoryRGBA(tomato_v1_256_qoi, tomato_v1_256_qoi_len);
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qoi_desc desc;
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uint8_t* img_data = static_cast<uint8_t*>(
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qoi_decode(tomato_v1_256_qoi, tomato_v1_256_qoi_len, &desc, 4)
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);
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if (img_data == nullptr) {
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// not readable
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return {};
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}
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auto* surf = SDL_CreateSurfaceFrom(desc.width, desc.height, SDL_PIXELFORMAT_RGBA32, img_data, 0);
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if (surf == nullptr) {
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return {}; // ??
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}
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auto* surf_dup = SDL_DuplicateSurface(surf);
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SDL_DestroySurface(surf);
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free(img_data);
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return surf_dup;
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}
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SDL_Surface* colorIndicator(float r, float g, float b, float a) {
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auto* surf = base();
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if (surf == nullptr) {
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return nullptr;
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}
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const SDL_Rect rect {
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// TODO: gaps and smaller
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// lower right quarter
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surf->w/2,
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surf->h/2,
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surf->w/2,
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surf->h/2,
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};
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const auto color = SDL_MapSurfaceRGBA(surf, r*255, g*255, b*255, a*255);
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SDL_FillSurfaceRect(surf, &rect, color);
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return surf;
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}
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} // IconGenerator
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