53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
#ifndef CLIP_H
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#define CLIP_H
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#include <stdint.h>
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#include "../containers/aligned_vector.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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CLIP_RESULT_ALL_IN_FRONT,
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CLIP_RESULT_ALL_BEHIND,
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CLIP_RESULT_ALL_ON_PLANE,
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CLIP_RESULT_FRONT_TO_BACK,
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CLIP_RESULT_BACK_TO_FRONT
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} ClipResult;
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typedef struct {
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uint8_t a;
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uint8_t r;
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uint8_t g;
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uint8_t b;
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} ClipColour;
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/* Note: This structure is the almost the same format as pvr_vertex_t aside from the offet
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* (oargb) which is replaced by the floating point w value. This is so that we can
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* simply zero it and memcpy the lot into the output */
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typedef struct {
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uint32_t flags;
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float xyz[3];
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float uv[2];
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ClipColour argb;
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float nxyz[3];
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float w;
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float xyzES[3]; /* Coordinate in eye space */
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float nES[3]; /* Normal in eye space */
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} ClipVertex;
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ClipResult clipLineToNearZ(const float* v1, const float* v2, const float dist, float* vout, float* t);
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void clipTriangleStrip(AlignedVector* vertices, AlignedVector* outBuffer);
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#ifdef __cplusplus
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}
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#endif
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#endif // CLIP_H
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