#include <simd/simd.h>

typedef struct {
  vector_float2 viewport_size;
} GPUIUniforms;

typedef enum {
  GPUIQuadInputIndexVertices = 0,
  GPUIQuadInputIndexQuads = 1,
  GPUIQuadInputIndexUniforms = 2,
} GPUIQuadInputIndex;

typedef struct {
  vector_float2 origin;
  vector_float2 size;
  vector_uchar4 background_color;
  float border_top;
  float border_right;
  float border_bottom;
  float border_left;
  vector_uchar4 border_color;
  float corner_radius;
} GPUIQuad;

typedef enum {
  GPUIShadowInputIndexVertices = 0,
  GPUIShadowInputIndexShadows = 1,
  GPUIShadowInputIndexUniforms = 2,
} GPUIShadowInputIndex;

typedef struct {
  vector_float2 origin;
  vector_float2 size;
  float corner_radius;
  float sigma;
  vector_uchar4 color;
} GPUIShadow;

typedef enum {
  GPUISpriteVertexInputIndexVertices = 0,
  GPUISpriteVertexInputIndexSprites = 1,
  GPUISpriteVertexInputIndexViewportSize = 2,
  GPUISpriteVertexInputIndexAtlasSize = 3,
} GPUISpriteVertexInputIndex;

typedef enum {
  GPUISpriteFragmentInputIndexAtlas = 0,
} GPUISpriteFragmentInputIndex;

typedef struct {
  vector_float2 origin;
  vector_float2 target_size;
  vector_float2 source_size;
  vector_float2 atlas_origin;
  vector_uchar4 color;
  uint8_t compute_winding;
} GPUISprite;

typedef enum {
  GPUIPathAtlasVertexInputIndexVertices = 0,
  GPUIPathAtlasVertexInputIndexAtlasSize = 1,
} GPUIPathAtlasVertexInputIndex;

typedef struct {
  vector_float2 xy_position;
  vector_float2 st_position;
  vector_float2 clip_rect_origin;
  vector_float2 clip_rect_size;
} GPUIPathVertex;

typedef enum {
  GPUIImageVertexInputIndexVertices = 0,
  GPUIImageVertexInputIndexImages = 1,
  GPUIImageVertexInputIndexViewportSize = 2,
  GPUIImageVertexInputIndexAtlasSize = 3,
} GPUIImageVertexInputIndex;

typedef enum {
  GPUIImageFragmentInputIndexAtlas = 0,
} GPUIImageFragmentInputIndex;

typedef struct {
  vector_float2 origin;
  vector_float2 target_size;
  vector_float2 source_size;
  vector_float2 atlas_origin;
  float border_top;
  float border_right;
  float border_bottom;
  float border_left;
  vector_uchar4 border_color;
  float corner_radius;
  uint8_t grayscale;
} GPUIImage;

typedef enum {
  GPUISurfaceVertexInputIndexVertices = 0,
  GPUISurfaceVertexInputIndexSurfaces = 1,
  GPUISurfaceVertexInputIndexViewportSize = 2,
  GPUISurfaceVertexInputIndexAtlasSize = 3,
} GPUISurfaceVertexInputIndex;

typedef enum {
  GPUISurfaceFragmentInputIndexYAtlas = 0,
  GPUISurfaceFragmentInputIndexCbCrAtlas = 1,
} GPUISurfaceFragmentInputIndex;

typedef struct {
  vector_float2 origin;
  vector_float2 target_size;
  vector_float2 source_size;
} GPUISurface;

typedef enum {
  GPUIUnderlineInputIndexVertices = 0,
  GPUIUnderlineInputIndexUnderlines = 1,
  GPUIUnderlineInputIndexUniforms = 2,
} GPUIUnderlineInputIndex;

typedef struct {
  vector_float2 origin;
  vector_float2 size;
  float thickness;
  vector_uchar4 color;
  uint8_t squiggly;
} GPUIUnderline;