reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | // EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL |
| 9 | // DO NOT USE -- FOR INTERNAL TESTING ONLY |
| 10 | |
| 11 | #ifndef sk_types_DEFINED |
| 12 | #define sk_types_DEFINED |
| 13 | |
| 14 | #include <stdint.h> |
| 15 | #include <stddef.h> |
| 16 | |
| 17 | #ifdef __cplusplus |
| 18 | #define SK_C_PLUS_PLUS_BEGIN_GUARD extern "C" { |
| 19 | #define SK_C_PLUS_PLUS_END_GUARD } |
| 20 | #else |
| 21 | #include <stdbool.h> |
| 22 | #define SK_C_PLUS_PLUS_BEGIN_GUARD |
| 23 | #define SK_C_PLUS_PLUS_END_GUARD |
| 24 | #endif |
| 25 | |
halcanary | 219f18f | 2015-09-01 10:01:38 -0700 | [diff] [blame] | 26 | #ifndef SK_API |
| 27 | #define SK_API |
| 28 | #endif |
| 29 | |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 30 | /////////////////////////////////////////////////////////////////////////////////////// |
| 31 | |
| 32 | SK_C_PLUS_PLUS_BEGIN_GUARD |
| 33 | |
| 34 | typedef uint32_t sk_color_t; |
| 35 | |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 36 | /* This macro assumes all arguments are >=0 and <=255. */ |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 37 | #define sk_color_set_argb(a, r, g, b) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b)) |
| 38 | #define sk_color_get_a(c) (((c) >> 24) & 0xFF) |
| 39 | #define sk_color_get_r(c) (((c) >> 16) & 0xFF) |
| 40 | #define sk_color_get_g(c) (((c) >> 8) & 0xFF) |
| 41 | #define sk_color_get_b(c) (((c) >> 0) & 0xFF) |
| 42 | |
| 43 | typedef enum { |
| 44 | UNKNOWN_SK_COLORTYPE, |
| 45 | RGBA_8888_SK_COLORTYPE, |
| 46 | BGRA_8888_SK_COLORTYPE, |
| 47 | ALPHA_8_SK_COLORTYPE, |
| 48 | } sk_colortype_t; |
| 49 | |
| 50 | typedef enum { |
| 51 | OPAQUE_SK_ALPHATYPE, |
| 52 | PREMUL_SK_ALPHATYPE, |
| 53 | UNPREMUL_SK_ALPHATYPE, |
| 54 | } sk_alphatype_t; |
| 55 | |
reed | e371989 | 2014-12-22 17:46:00 -0800 | [diff] [blame] | 56 | typedef enum { |
| 57 | INTERSECT_SK_CLIPTYPE, |
| 58 | DIFFERENCE_SK_CLIPTYPE, |
| 59 | } sk_cliptype_t; |
| 60 | |
robertphillips | 702edbd | 2015-06-23 06:26:08 -0700 | [diff] [blame] | 61 | typedef enum { |
| 62 | UNKNOWN_SK_PIXELGEOMETRY, |
| 63 | RGB_H_SK_PIXELGEOMETRY, |
| 64 | BGR_H_SK_PIXELGEOMETRY, |
| 65 | RGB_V_SK_PIXELGEOMETRY, |
| 66 | BGR_V_SK_PIXELGEOMETRY, |
| 67 | } sk_pixelgeometry_t; |
| 68 | |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 69 | /** |
| 70 | Return the default sk_colortype_t; this is operating-system dependent. |
| 71 | */ |
halcanary | 219f18f | 2015-09-01 10:01:38 -0700 | [diff] [blame] | 72 | SK_API sk_colortype_t sk_colortype_get_default_8888(); |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 73 | |
| 74 | typedef struct { |
| 75 | int32_t width; |
| 76 | int32_t height; |
| 77 | sk_colortype_t colorType; |
| 78 | sk_alphatype_t alphaType; |
| 79 | } sk_imageinfo_t; |
| 80 | |
| 81 | typedef struct { |
robertphillips | 702edbd | 2015-06-23 06:26:08 -0700 | [diff] [blame] | 82 | sk_pixelgeometry_t pixelGeometry; |
| 83 | } sk_surfaceprops_t; |
| 84 | |
| 85 | typedef struct { |
reed | afa278e | 2014-11-24 19:11:48 -0800 | [diff] [blame] | 86 | float x; |
| 87 | float y; |
| 88 | } sk_point_t; |
| 89 | |
| 90 | typedef struct { |
reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame] | 91 | int32_t left; |
| 92 | int32_t top; |
| 93 | int32_t right; |
| 94 | int32_t bottom; |
| 95 | } sk_irect_t; |
| 96 | |
| 97 | typedef struct { |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 98 | float left; |
| 99 | float top; |
| 100 | float right; |
| 101 | float bottom; |
| 102 | } sk_rect_t; |
| 103 | |
reed | afa278e | 2014-11-24 19:11:48 -0800 | [diff] [blame] | 104 | typedef struct { |
| 105 | float mat[9]; |
| 106 | } sk_matrix_t; |
| 107 | |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 108 | /** |
| 109 | A sk_canvas_t encapsulates all of the state about drawing into a |
| 110 | destination This includes a reference to the destination itself, |
| 111 | and a stack of matrix/clip values. |
| 112 | */ |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 113 | typedef struct sk_canvas_t sk_canvas_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 114 | /** |
| 115 | A sk_data_ holds an immutable data buffer. |
| 116 | */ |
reed | b2a5d7e | 2014-12-25 14:16:21 -0800 | [diff] [blame] | 117 | typedef struct sk_data_t sk_data_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 118 | /** |
| 119 | A sk_image_t is an abstraction for drawing a rectagle of pixels. |
| 120 | The content of the image is always immutable, though the actual |
| 121 | storage may change, if for example that image can be re-created via |
| 122 | encoded data or other means. |
| 123 | */ |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 124 | typedef struct sk_image_t sk_image_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 125 | /** |
| 126 | A sk_maskfilter_t is an object that perform transformations on an |
| 127 | alpha-channel mask before drawing it; it may be installed into a |
| 128 | sk_paint_t. Each time a primitive is drawn, it is first |
| 129 | scan-converted into a alpha mask, which os handed to the |
| 130 | maskfilter, which may create a new mask is to render into the |
| 131 | destination. |
| 132 | */ |
reed | 0eafc9b | 2014-12-23 14:11:11 -0800 | [diff] [blame] | 133 | typedef struct sk_maskfilter_t sk_maskfilter_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 134 | /** |
| 135 | A sk_paint_t holds the style and color information about how to |
| 136 | draw geometries, text and bitmaps. |
| 137 | */ |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 138 | typedef struct sk_paint_t sk_paint_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 139 | /** |
| 140 | A sk_path_t encapsulates compound (multiple contour) geometric |
| 141 | paths consisting of straight line segments, quadratic curves, and |
| 142 | cubic curves. |
| 143 | */ |
reed | b2a5d7e | 2014-12-25 14:16:21 -0800 | [diff] [blame] | 144 | typedef struct sk_path_t sk_path_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 145 | /** |
| 146 | A sk_picture_t holds recorded canvas drawing commands to be played |
| 147 | back at a later time. |
| 148 | */ |
reed | e371989 | 2014-12-22 17:46:00 -0800 | [diff] [blame] | 149 | typedef struct sk_picture_t sk_picture_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 150 | /** |
| 151 | A sk_picture_recorder_t holds a sk_canvas_t that records commands |
| 152 | to create a sk_picture_t. |
| 153 | */ |
reed | e371989 | 2014-12-22 17:46:00 -0800 | [diff] [blame] | 154 | typedef struct sk_picture_recorder_t sk_picture_recorder_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 155 | /** |
| 156 | A sk_shader_t specifies the source color(s) for what is being drawn. If a |
| 157 | paint has no shader, then the paint's color is used. If the paint |
| 158 | has a shader, then the shader's color(s) are use instead, but they |
| 159 | are modulated by the paint's alpha. |
| 160 | */ |
reed | afa278e | 2014-11-24 19:11:48 -0800 | [diff] [blame] | 161 | typedef struct sk_shader_t sk_shader_t; |
halcanary | c911906 | 2015-09-01 10:45:09 -0700 | [diff] [blame] | 162 | /** |
| 163 | A sk_surface_t holds the destination for drawing to a canvas. For |
| 164 | raster drawing, the destination is an array of pixels in memory. |
| 165 | For GPU drawing, the destination is a texture or a framebuffer. |
| 166 | */ |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 167 | typedef struct sk_surface_t sk_surface_t; |
| 168 | |
halcanary | 7568d0b | 2015-07-31 13:38:06 -0700 | [diff] [blame] | 169 | typedef enum { |
| 170 | CLEAR_SK_XFERMODE_MODE, |
| 171 | SRC_SK_XFERMODE_MODE, |
| 172 | DST_SK_XFERMODE_MODE, |
| 173 | SRCOVER_SK_XFERMODE_MODE, |
| 174 | DSTOVER_SK_XFERMODE_MODE, |
| 175 | SRCIN_SK_XFERMODE_MODE, |
| 176 | DSTIN_SK_XFERMODE_MODE, |
| 177 | SRCOUT_SK_XFERMODE_MODE, |
| 178 | DSTOUT_SK_XFERMODE_MODE, |
| 179 | SRCATOP_SK_XFERMODE_MODE, |
| 180 | DSTATOP_SK_XFERMODE_MODE, |
| 181 | XOR_SK_XFERMODE_MODE, |
| 182 | PLUS_SK_XFERMODE_MODE, |
| 183 | MODULATE_SK_XFERMODE_MODE, |
| 184 | SCREEN_SK_XFERMODE_MODE, |
| 185 | OVERLAY_SK_XFERMODE_MODE, |
| 186 | DARKEN_SK_XFERMODE_MODE, |
| 187 | LIGHTEN_SK_XFERMODE_MODE, |
| 188 | COLORDODGE_SK_XFERMODE_MODE, |
| 189 | COLORBURN_SK_XFERMODE_MODE, |
| 190 | HARDLIGHT_SK_XFERMODE_MODE, |
| 191 | SOFTLIGHT_SK_XFERMODE_MODE, |
| 192 | DIFFERENCE_SK_XFERMODE_MODE, |
| 193 | EXCLUSION_SK_XFERMODE_MODE, |
| 194 | MULTIPLY_SK_XFERMODE_MODE, |
| 195 | HUE_SK_XFERMODE_MODE, |
| 196 | SATURATION_SK_XFERMODE_MODE, |
| 197 | COLOR_SK_XFERMODE_MODE, |
| 198 | LUMINOSITY_SK_XFERMODE_MODE, |
| 199 | } sk_xfermode_mode_t; |
| 200 | |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 201 | ////////////////////////////////////////////////////////////////////////////////////////// |
| 202 | |
reed | 73c2501 | 2014-11-17 06:15:42 -0800 | [diff] [blame] | 203 | SK_C_PLUS_PLUS_END_GUARD |
| 204 | |
| 205 | #endif |