this repo has no description
Added macros to help match struct padding and pointer bitness.
authored by
Jonathan Dearborn
and committed by
Alice
1f2c94fd
654724fb
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include/SDL_gpu.h
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include/SDL_gpu.h
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#define GPU_bool int
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#endif
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#if defined(_MSC_VER) || (defined(__INTEL_COMPILER) && defined(_WIN32))
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#if defined(_M_X64)
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#define SDL_GPU_BITNESS 64
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#else
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#define SDL_GPU_BITNESS 32
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#endif
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#define SDL_GPU_LONG_SIZE 4
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#elif defined(__clang__) || defined(__INTEL_COMPILER) || defined(__GNUC__)
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#if defined(__x86_64)
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#define SDL_GPU_BITNESS 64
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#else
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#define SDL_GPU_BITNESS 32
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#endif
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#if __LONG_MAX__ == 2147483647L
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#define SDL_GPU_LONG_SIZE 4
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#else
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#define SDL_GPU_LONG_SIZE 8
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#endif
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#endif
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// Struct padding for 32 or 64 bit alignment
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#if SDL_GPU_BITNESS == 32
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#define GPU_PAD_1_TO_32 1
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#define GPU_PAD_2_TO_32 2
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#define GPU_PAD_3_TO_32 3
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#define GPU_PAD_1_TO_64 1
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#define GPU_PAD_2_TO_64 2
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#define GPU_PAD_3_TO_64 3
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#define GPU_PAD_4_TO_64 0
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#define GPU_PAD_5_TO_64 1
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#define GPU_PAD_6_TO_64 2
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#define GPU_PAD_7_TO_64 3
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#elif SDL_GPU_BITNESS == 64
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#define GPU_PAD_1_TO_32 1
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#define GPU_PAD_2_TO_32 2
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#define GPU_PAD_3_TO_32 3
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#define GPU_PAD_1_TO_64 1
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#define GPU_PAD_2_TO_64 2
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#define GPU_PAD_3_TO_64 3
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#define GPU_PAD_4_TO_64 4
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#define GPU_PAD_5_TO_64 5
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#define GPU_PAD_6_TO_64 6
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#define GPU_PAD_7_TO_64 7
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#endif
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#define GPU_FALSE 0
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#define GPU_TRUE 1
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float zoom_x, zoom_y;
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float z_near, z_far; // z clipping planes
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GPU_bool use_centered_origin; // move rotation/scaling origin to the center of the camera's view
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char _padding[3];
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char _padding[GPU_PAD_7_TO_64];
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} GPU_Camera;
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···
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GPU_bool failed;
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GPU_bool use_texturing;
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GPU_bool shapes_use_blending;
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char _padding[1];
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char _padding[GPU_PAD_5_TO_64];
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} GPU_Context;
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···
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GPU_bool use_depth_test;
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GPU_bool use_depth_write;
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GPU_bool is_alias;
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char _padding[1];
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char _padding[GPU_PAD_1_TO_64];
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};
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/*! \ingroup Initialization
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int offset_bytes; // Number of bytes to skip at the beginning of 'values'
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GPU_bool is_per_sprite; // Per-sprite values are expanded to 4 vertices
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GPU_bool normalize;
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char _padding[2];
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char _padding[GPU_PAD_2_TO_32];
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} GPU_AttributeFormat;
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/*! \ingroup ShaderInterface */
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void* per_vertex_storage; // Could point to the attribute's values or to allocated storage
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GPU_Attribute attribute;
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GPU_bool enabled;
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char _padding[3];
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char _padding[GPU_PAD_7_TO_64];
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} GPU_AttributeSource;
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···
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/*! 0 for inverted, 1 for mathematical */
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GPU_bool coordinate_mode;
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char _padding[3];
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char _padding[GPU_PAD_7_TO_64];
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};
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