| Allan MacKinnon | 4359d52 | 2018-06-19 13:57:04 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2017 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can |
| 5 | * be found in the LICENSE file. |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #ifndef SKC_COMMON_ONCE |
| 10 | #define SKC_COMMON_ONCE |
| 11 | |
| 12 | // |
| 13 | // structures common to both host and device -- placeholder until |
| 14 | // everything shakes out |
| 15 | // |
| 16 | |
| 17 | union skc_transform |
| 18 | { |
| 19 | // |
| 20 | // Transform is always scaled s.t. w2 is 1.0f |
| 21 | // |
| 22 | skc_float f32a8[8]; |
| 23 | |
| 24 | skc_float8 f32v8; |
| 25 | |
| 26 | struct { |
| 27 | skc_float sx; |
| 28 | skc_float shx; |
| 29 | skc_float tx; |
| 30 | |
| 31 | skc_float shy; |
| 32 | skc_float sy; |
| 33 | skc_float ty; |
| 34 | |
| 35 | skc_float w0; |
| 36 | skc_float w1; |
| 37 | }; |
| 38 | }; |
| 39 | |
| 40 | // |
| 41 | // |
| 42 | // |
| 43 | |
| 44 | union skc_path_clip |
| 45 | { |
| 46 | skc_float f32a4[4]; // FIXME -- use the SIMD4 representation trick |
| 47 | |
| 48 | skc_float4 f32v4; |
| 49 | |
| 50 | struct { |
| 51 | skc_float x0; |
| 52 | skc_float y0; |
| 53 | skc_float x1; |
| 54 | skc_float y1; |
| 55 | }; |
| 56 | }; |
| 57 | |
| 58 | // |
| 59 | // host-side path fill cmd that is expanded into rasterization cmds |
| 60 | // |
| 61 | // FIXME -- these magic numbers will be replaced with tile.h constants |
| 62 | // |
| 63 | // FIXME -- make this command opaque by moving it into the platform impl |
| 64 | // |
| 65 | // FIXME -- NEED TO EVALUATE IF THIS DISTRIBUTION OF BITS IS GOING TO |
| 66 | // BE TOO SMALL -- plenty of room to jiggle these bits |
| 67 | // |
| 68 | |
| 69 | #define SKC_CMD_FILL_BITS_TRANSFORM 12 // distinct transforms -- perhaps too generous |
| 70 | #define SKC_CMD_FILL_BITS_CLIP 12 // distinct clips -- perhaps too generous |
| 71 | #define SKC_CMD_FILL_BITS_COHORT 8 // perhaps too small |
| 72 | |
| 73 | // |
| 74 | // |
| 75 | // |
| 76 | |
| 77 | typedef skc_uint skc_path_h; // host path handle |
| 78 | |
| 79 | union skc_cmd_fill |
| 80 | { |
| 81 | skc_ulong u64; |
| 82 | |
| 83 | skc_uint2 u32v2; |
| 84 | |
| 85 | struct { |
| 86 | skc_path_h path; // host path id |
| 87 | #if defined(__OPENCL_C_VERSION__) |
| 88 | skc_uint tcc; |
| 89 | #else |
| 90 | skc_uint transform : SKC_CMD_FILL_BITS_TRANSFORM; |
| 91 | skc_uint clip : SKC_CMD_FILL_BITS_CLIP; |
| 92 | skc_uint cohort : SKC_CMD_FILL_BITS_COHORT; |
| 93 | #endif |
| 94 | }; |
| 95 | }; |
| 96 | |
| 97 | // |
| 98 | // |
| 99 | // |
| 100 | |
| 101 | typedef skc_uint skc_raster_h; |
| 102 | |
| 103 | union skc_cmd_place |
| 104 | { |
| 105 | skc_uint4 u32v4; |
| 106 | |
| 107 | struct { |
| 108 | skc_raster_h raster_h; |
| 109 | skc_uint layer_id; |
| 110 | skc_uint tx; |
| 111 | skc_uint ty; |
| 112 | }; |
| 113 | }; |
| 114 | |
| 115 | SKC_STATIC_ASSERT(sizeof(union skc_cmd_place) == sizeof(skc_uint4)); |
| 116 | |
| 117 | // |
| 118 | // |
| 119 | // |
| 120 | |
| 121 | #endif |
| 122 | |
| 123 | // |
| 124 | // |
| 125 | // |