44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
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#include <pd/common/io.hpp>
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#include <pd/graphics/spritesheet.hpp>
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namespace PD {
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SpriteSheet::~SpriteSheet() { textures.clear(); }
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void SpriteSheet::LoadFile(const std::string& path) {
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auto file = IO::LoadFile2Mem(path);
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if (file.size() == 0) {
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Error("Unable to load file:\n" + path);
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}
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C3D_Tex* tex = new C3D_Tex;
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auto t3x =
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Tex3DS_TextureImport(file.data(), file.size(), tex, nullptr, false);
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if (!t3x) {
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Error("Unable to import:\n" + path);
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}
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tex->border = 0;
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C3D_TexSetWrap(tex, GPU_CLAMP_TO_BORDER, GPU_CLAMP_TO_BORDER);
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C3D_TexSetFilter(tex, GPU_LINEAR, GPU_NEAREST);
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textures.reserve(Tex3DS_GetNumSubTextures(t3x) + 1);
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for (int i = 0; i < (int)Tex3DS_GetNumSubTextures(t3x); i++) {
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auto t = Texture::New();
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auto st = Tex3DS_GetSubTexture(t3x, i);
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LI::Rect uv(vec2(st->left, st->top), vec2(st->right, st->top),
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vec2(st->left, st->bottom), vec2(st->right, st->bottom));
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if (st->top < st->bottom) {
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uv.SwapVec2XY();
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}
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t->LoadExternal(tex, vec2(st->width, st->height), uv);
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textures.push_back(t);
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}
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}
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Texture::Ref SpriteSheet::Get(int idx) {
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if (idx >= (int)textures.size()) {
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Error("Trying to Access Texture " + std::to_string(idx + 1) + " of " +
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std::to_string(NumTextures()));
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}
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return textures[idx];
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}
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int SpriteSheet::NumTextures() const { return textures.size(); }
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} // namespace PD
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