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https://github.com/bolero-MURAKAMI/Sprout.git
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96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
#ifndef SPROUT_DARKROOM_TEXTURES_TEXTURE_HPP
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#define SPROUT_DARKROOM_TEXTURES_TEXTURE_HPP
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#include <cstddef>
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#include <sprout/config.hpp>
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#include <sprout/array.hpp>
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#include <sprout/darkroom/access/access.hpp>
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#include <sprout/darkroom/colors/rgb.hpp>
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//
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// DARKROOM_LOAD_TEXTURE
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//
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#define DARKROOM_LOAD_TEXTURE <sprout/darkroom/load/texture.hpp>
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//
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// DARKROOM_TEX_VERSION
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//
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#define DARKROOM_TEX_VERSION(NUM) NUM
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//
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// DARKROOM_TEX_IMAGE_DEFAULT
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//
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#define DARKROOM_TEX_IMAGE_DEFAULT 0
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//
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// DARKROOM_TEX_PIXEL_INT_R8G8B8
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//
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#define DARKROOM_TEX_PIXEL_INT_R8G8B8 0
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namespace sprout {
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namespace darkroom {
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namespace textures {
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//
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// version_type
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//
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typedef unsigned long version_type;
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//
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// info_type
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//
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struct info_type {
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public:
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unsigned long image_format;
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unsigned long pixel_format;
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std::size_t width;
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std::size_t height;
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};
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//
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// image_type
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//
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template<std::size_t Width, std::size_t Height, typename Color = sprout::darkroom::colors::rgb_f>
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struct image_type {
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public:
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typedef Color color_type;
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typedef color_type value_type;
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typedef std::size_t size_type;
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SPROUT_STATIC_CONSTEXPR size_type static_width = Width;
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SPROUT_STATIC_CONSTEXPR size_type static_height = Height;
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typedef sprout::array<value_type, static_width * static_height> pixels_type;
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typedef typename sprout::darkroom::access::unit<color_type>::type color_component_type;
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private:
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pixels_type pixels_;
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public:
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template<typename... Elems>
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SPROUT_CONSTEXPR image_type(
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unsigned long image_format,
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unsigned long pixel_format,
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Elems const&... elems
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)
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: pixels_{{
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color_type(
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static_cast<color_component_type>((elems >> 16) & 0xFF) / 0xFF,
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static_cast<color_component_type>((elems >> 8) & 0xFF) / 0xFF,
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static_cast<color_component_type>(elems & 0xFF) / 0xFF
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)...
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}}
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{
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static_assert(sizeof...(Elems) == static_width * static_height, "image_type<>: unmatch image size");
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}
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SPROUT_CONSTEXPR value_type const& operator()(size_type x, size_type y) const {
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return pixels_[y * static_width + x];
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}
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SPROUT_CONSTEXPR size_type width() const {
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return static_width;
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}
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SPROUT_CONSTEXPR size_type height() const {
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return static_height;
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}
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SPROUT_CONSTEXPR pixels_type const& pixels() const {
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return pixels_;
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}
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};
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} // namespace textures
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} // namespace darkroom
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} // namespace sprout
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#endif // #ifndef SPROUT_DARKROOM_TEXTURES_TEXTURE_HPP
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