The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | /* libs/pixelflinger/scanline.cpp |
| 2 | ** |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 3 | ** Copyright 2006-2011, The Android Open Source Project |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 4 | ** |
| 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
| 8 | ** |
| 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | ** |
| 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
| 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | |
| 19 | #define LOG_TAG "pixelflinger" |
| 20 | |
| 21 | #include <assert.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <stdio.h> |
| 24 | #include <string.h> |
| 25 | |
| 26 | #include <cutils/memory.h> |
| 27 | #include <cutils/log.h> |
| 28 | |
| 29 | #include "buffer.h" |
| 30 | #include "scanline.h" |
| 31 | |
| 32 | #include "codeflinger/CodeCache.h" |
| 33 | #include "codeflinger/GGLAssembler.h" |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 34 | #if defined(__arm__) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 35 | #include "codeflinger/ARMAssembler.h" |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 36 | #elif defined(__aarch64__) |
Colin Cross | d4146e6 | 2014-01-21 20:12:28 -0800 | [diff] [blame] | 37 | #include "codeflinger/Arm64Assembler.h" |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 38 | #elif defined(__mips__) |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 39 | #include "codeflinger/MIPSAssembler.h" |
| 40 | #endif |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 41 | //#include "codeflinger/ARMAssemblerOptimizer.h" |
| 42 | |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | |
| 45 | #define ANDROID_CODEGEN_GENERIC 0 // force generic pixel pipeline |
| 46 | #define ANDROID_CODEGEN_C 1 // hand-written C, fallback generic |
| 47 | #define ANDROID_CODEGEN_ASM 2 // hand-written asm, fallback generic |
| 48 | #define ANDROID_CODEGEN_GENERATED 3 // hand-written asm, fallback codegen |
| 49 | |
| 50 | #ifdef NDEBUG |
| 51 | # define ANDROID_RELEASE |
| 52 | # define ANDROID_CODEGEN ANDROID_CODEGEN_GENERATED |
| 53 | #else |
| 54 | # define ANDROID_DEBUG |
| 55 | # define ANDROID_CODEGEN ANDROID_CODEGEN_GENERATED |
| 56 | #endif |
| 57 | |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 58 | #if defined(__arm__) || defined(__mips__) || defined(__aarch64__) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 59 | # define ANDROID_ARM_CODEGEN 1 |
| 60 | #else |
| 61 | # define ANDROID_ARM_CODEGEN 0 |
| 62 | #endif |
| 63 | |
| 64 | #define DEBUG__CODEGEN_ONLY 0 |
| 65 | |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 66 | /* Set to 1 to dump to the log the states that need a new |
| 67 | * code-generated scanline callback, i.e. those that don't |
| 68 | * have a corresponding shortcut function. |
| 69 | */ |
| 70 | #define DEBUG_NEEDS 0 |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 71 | |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 72 | #ifdef __mips__ |
| 73 | #define ASSEMBLY_SCRATCH_SIZE 4096 |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 74 | #elif defined(__aarch64__) |
| 75 | #define ASSEMBLY_SCRATCH_SIZE 8192 |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 76 | #else |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 77 | #define ASSEMBLY_SCRATCH_SIZE 2048 |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 78 | #endif |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 79 | |
| 80 | // ---------------------------------------------------------------------------- |
| 81 | namespace android { |
| 82 | // ---------------------------------------------------------------------------- |
| 83 | |
| 84 | static void init_y(context_t*, int32_t); |
| 85 | static void init_y_noop(context_t*, int32_t); |
| 86 | static void init_y_packed(context_t*, int32_t); |
| 87 | static void init_y_error(context_t*, int32_t); |
| 88 | |
| 89 | static void step_y__generic(context_t* c); |
| 90 | static void step_y__nop(context_t*); |
| 91 | static void step_y__smooth(context_t* c); |
| 92 | static void step_y__tmu(context_t* c); |
| 93 | static void step_y__w(context_t* c); |
| 94 | |
| 95 | static void scanline(context_t* c); |
| 96 | static void scanline_perspective(context_t* c); |
| 97 | static void scanline_perspective_single(context_t* c); |
| 98 | static void scanline_t32cb16blend(context_t* c); |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 99 | static void scanline_t32cb16blend_dither(context_t* c); |
| 100 | static void scanline_t32cb16blend_srca(context_t* c); |
| 101 | static void scanline_t32cb16blend_clamp(context_t* c); |
| 102 | static void scanline_t32cb16blend_clamp_dither(context_t* c); |
| 103 | static void scanline_t32cb16blend_clamp_mod(context_t* c); |
| 104 | static void scanline_x32cb16blend_clamp_mod(context_t* c); |
| 105 | static void scanline_t32cb16blend_clamp_mod_dither(context_t* c); |
| 106 | static void scanline_x32cb16blend_clamp_mod_dither(context_t* c); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 107 | static void scanline_t32cb16(context_t* c); |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 108 | static void scanline_t32cb16_dither(context_t* c); |
| 109 | static void scanline_t32cb16_clamp(context_t* c); |
| 110 | static void scanline_t32cb16_clamp_dither(context_t* c); |
Martyn Capewell | f9e8ab0 | 2009-12-07 15:00:19 +0000 | [diff] [blame] | 111 | static void scanline_col32cb16blend(context_t* c); |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 112 | static void scanline_t16cb16_clamp(context_t* c); |
| 113 | static void scanline_t16cb16blend_clamp_mod(context_t* c); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 114 | static void scanline_memcpy(context_t* c); |
| 115 | static void scanline_memset8(context_t* c); |
| 116 | static void scanline_memset16(context_t* c); |
| 117 | static void scanline_memset32(context_t* c); |
| 118 | static void scanline_noop(context_t* c); |
| 119 | static void scanline_set(context_t* c); |
| 120 | static void scanline_clear(context_t* c); |
| 121 | |
| 122 | static void rect_generic(context_t* c, size_t yc); |
| 123 | static void rect_memcpy(context_t* c, size_t yc); |
| 124 | |
Duane Sand | 068f9f3 | 2012-05-24 22:09:24 -0700 | [diff] [blame] | 125 | #if defined( __arm__) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 126 | extern "C" void scanline_t32cb16blend_arm(uint16_t*, uint32_t*, size_t); |
| 127 | extern "C" void scanline_t32cb16_arm(uint16_t *dst, uint32_t *src, size_t ct); |
Martyn Capewell | f9e8ab0 | 2009-12-07 15:00:19 +0000 | [diff] [blame] | 128 | extern "C" void scanline_col32cb16blend_neon(uint16_t *dst, uint32_t *col, size_t ct); |
| 129 | extern "C" void scanline_col32cb16blend_arm(uint16_t *dst, uint32_t col, size_t ct); |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 130 | #elif defined(__aarch64__) |
Colin Cross | d4146e6 | 2014-01-21 20:12:28 -0800 | [diff] [blame] | 131 | extern "C" void scanline_t32cb16blend_arm64(uint16_t*, uint32_t*, size_t); |
| 132 | extern "C" void scanline_col32cb16blend_arm64(uint16_t *dst, uint32_t col, size_t ct); |
Duane Sand | 068f9f3 | 2012-05-24 22:09:24 -0700 | [diff] [blame] | 133 | #elif defined(__mips__) |
| 134 | extern "C" void scanline_t32cb16blend_mips(uint16_t*, uint32_t*, size_t); |
| 135 | #endif |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 136 | |
| 137 | // ---------------------------------------------------------------------------- |
| 138 | |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 139 | static inline uint16_t convertAbgr8888ToRgb565(uint32_t pix) |
| 140 | { |
| 141 | return uint16_t( ((pix << 8) & 0xf800) | |
| 142 | ((pix >> 5) & 0x07e0) | |
| 143 | ((pix >> 19) & 0x001f) ); |
| 144 | } |
| 145 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 146 | struct shortcut_t { |
| 147 | needs_filter_t filter; |
| 148 | const char* desc; |
| 149 | void (*scanline)(context_t*); |
| 150 | void (*init_y)(context_t*, int32_t); |
| 151 | }; |
| 152 | |
| 153 | // Keep in sync with needs |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 154 | |
| 155 | /* To understand the values here, have a look at: |
| 156 | * system/core/include/private/pixelflinger/ggl_context.h |
| 157 | * |
| 158 | * Especially the lines defining and using GGL_RESERVE_NEEDS |
| 159 | * |
| 160 | * Quick reminders: |
| 161 | * - the last nibble of the first value is the destination buffer format. |
| 162 | * - the last nibble of the third value is the source texture format |
| 163 | * - formats: 4=rgb565 1=abgr8888 2=xbgr8888 |
| 164 | * |
| 165 | * In the descriptions below: |
| 166 | * |
| 167 | * SRC means we copy the source pixels to the destination |
| 168 | * |
| 169 | * SRC_OVER means we blend the source pixels to the destination |
| 170 | * with dstFactor = 1-srcA, srcFactor=1 (premultiplied source). |
| 171 | * This mode is otherwise called 'blend'. |
| 172 | * |
| 173 | * SRCA_OVER means we blend the source pixels to the destination |
| 174 | * with dstFactor=srcA*(1-srcA) srcFactor=srcA (non-premul source). |
| 175 | * This mode is otherwise called 'blend_srca' |
| 176 | * |
| 177 | * clamp means we fetch source pixels from a texture with u/v clamping |
| 178 | * |
| 179 | * mod means the source pixels are modulated (multiplied) by the |
| 180 | * a/r/g/b of the current context's color. Typically used for |
| 181 | * fade-in / fade-out. |
| 182 | * |
| 183 | * dither means we dither 32 bit values to 16 bits |
| 184 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 185 | static shortcut_t shortcuts[] = { |
| 186 | { { { 0x03515104, 0x00000077, { 0x00000A01, 0x00000000 } }, |
| 187 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 188 | "565 fb, 8888 tx, blend SRC_OVER", scanline_t32cb16blend, init_y_noop }, |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 189 | { { { 0x03010104, 0x00000077, { 0x00000A01, 0x00000000 } }, |
| 190 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 191 | "565 fb, 8888 tx, SRC", scanline_t32cb16, init_y_noop }, |
| 192 | /* same as first entry, but with dithering */ |
| 193 | { { { 0x03515104, 0x00000177, { 0x00000A01, 0x00000000 } }, |
| 194 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 195 | "565 fb, 8888 tx, blend SRC_OVER dither", scanline_t32cb16blend_dither, init_y_noop }, |
| 196 | /* same as second entry, but with dithering */ |
| 197 | { { { 0x03010104, 0x00000177, { 0x00000A01, 0x00000000 } }, |
| 198 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 199 | "565 fb, 8888 tx, SRC dither", scanline_t32cb16_dither, init_y_noop }, |
| 200 | /* this is used during the boot animation - CHEAT: ignore dithering */ |
| 201 | { { { 0x03545404, 0x00000077, { 0x00000A01, 0x00000000 } }, |
| 202 | { 0xFFFFFFFF, 0xFFFFFEFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 203 | "565 fb, 8888 tx, blend dst:ONE_MINUS_SRCA src:SRCA", scanline_t32cb16blend_srca, init_y_noop }, |
| 204 | /* special case for arbitrary texture coordinates (think scaling) */ |
| 205 | { { { 0x03515104, 0x00000077, { 0x00000001, 0x00000000 } }, |
| 206 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 207 | "565 fb, 8888 tx, SRC_OVER clamp", scanline_t32cb16blend_clamp, init_y }, |
| 208 | { { { 0x03515104, 0x00000177, { 0x00000001, 0x00000000 } }, |
| 209 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 210 | "565 fb, 8888 tx, SRC_OVER clamp dither", scanline_t32cb16blend_clamp_dither, init_y }, |
| 211 | /* another case used during emulation */ |
| 212 | { { { 0x03515104, 0x00000077, { 0x00001001, 0x00000000 } }, |
| 213 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 214 | "565 fb, 8888 tx, SRC_OVER clamp modulate", scanline_t32cb16blend_clamp_mod, init_y }, |
| 215 | /* and this */ |
| 216 | { { { 0x03515104, 0x00000077, { 0x00001002, 0x00000000 } }, |
| 217 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 218 | "565 fb, x888 tx, SRC_OVER clamp modulate", scanline_x32cb16blend_clamp_mod, init_y }, |
| 219 | { { { 0x03515104, 0x00000177, { 0x00001001, 0x00000000 } }, |
| 220 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 221 | "565 fb, 8888 tx, SRC_OVER clamp modulate dither", scanline_t32cb16blend_clamp_mod_dither, init_y }, |
| 222 | { { { 0x03515104, 0x00000177, { 0x00001002, 0x00000000 } }, |
| 223 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 224 | "565 fb, x888 tx, SRC_OVER clamp modulate dither", scanline_x32cb16blend_clamp_mod_dither, init_y }, |
| 225 | { { { 0x03010104, 0x00000077, { 0x00000001, 0x00000000 } }, |
| 226 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 227 | "565 fb, 8888 tx, SRC clamp", scanline_t32cb16_clamp, init_y }, |
| 228 | { { { 0x03010104, 0x00000077, { 0x00000002, 0x00000000 } }, |
| 229 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 230 | "565 fb, x888 tx, SRC clamp", scanline_t32cb16_clamp, init_y }, |
| 231 | { { { 0x03010104, 0x00000177, { 0x00000001, 0x00000000 } }, |
| 232 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 233 | "565 fb, 8888 tx, SRC clamp dither", scanline_t32cb16_clamp_dither, init_y }, |
| 234 | { { { 0x03010104, 0x00000177, { 0x00000002, 0x00000000 } }, |
| 235 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 236 | "565 fb, x888 tx, SRC clamp dither", scanline_t32cb16_clamp_dither, init_y }, |
| 237 | { { { 0x03010104, 0x00000077, { 0x00000004, 0x00000000 } }, |
| 238 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 239 | "565 fb, 565 tx, SRC clamp", scanline_t16cb16_clamp, init_y }, |
| 240 | { { { 0x03515104, 0x00000077, { 0x00001004, 0x00000000 } }, |
| 241 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0x0000003F } } }, |
| 242 | "565 fb, 565 tx, SRC_OVER clamp", scanline_t16cb16blend_clamp_mod, init_y }, |
Martyn Capewell | f9e8ab0 | 2009-12-07 15:00:19 +0000 | [diff] [blame] | 243 | { { { 0x03515104, 0x00000077, { 0x00000000, 0x00000000 } }, |
| 244 | { 0xFFFFFFFF, 0xFFFFFFFF, { 0xFFFFFFFF, 0xFFFFFFFF } } }, |
| 245 | "565 fb, 8888 fixed color", scanline_col32cb16blend, init_y_packed }, |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 246 | { { { 0x00000000, 0x00000000, { 0x00000000, 0x00000000 } }, |
| 247 | { 0x00000000, 0x00000007, { 0x00000000, 0x00000000 } } }, |
| 248 | "(nop) alpha test", scanline_noop, init_y_noop }, |
| 249 | { { { 0x00000000, 0x00000000, { 0x00000000, 0x00000000 } }, |
| 250 | { 0x00000000, 0x00000070, { 0x00000000, 0x00000000 } } }, |
| 251 | "(nop) depth test", scanline_noop, init_y_noop }, |
| 252 | { { { 0x05000000, 0x00000000, { 0x00000000, 0x00000000 } }, |
| 253 | { 0x0F000000, 0x00000080, { 0x00000000, 0x00000000 } } }, |
| 254 | "(nop) logic_op", scanline_noop, init_y_noop }, |
| 255 | { { { 0xF0000000, 0x00000000, { 0x00000000, 0x00000000 } }, |
| 256 | { 0xF0000000, 0x00000080, { 0x00000000, 0x00000000 } } }, |
| 257 | "(nop) color mask", scanline_noop, init_y_noop }, |
| 258 | { { { 0x0F000000, 0x00000077, { 0x00000000, 0x00000000 } }, |
| 259 | { 0xFF000000, 0x000000F7, { 0x00000000, 0x00000000 } } }, |
| 260 | "(set) logic_op", scanline_set, init_y_noop }, |
| 261 | { { { 0x00000000, 0x00000077, { 0x00000000, 0x00000000 } }, |
| 262 | { 0xFF000000, 0x000000F7, { 0x00000000, 0x00000000 } } }, |
| 263 | "(clear) logic_op", scanline_clear, init_y_noop }, |
| 264 | { { { 0x03000000, 0x00000077, { 0x00000000, 0x00000000 } }, |
| 265 | { 0xFFFFFF00, 0x000000F7, { 0x00000000, 0x00000000 } } }, |
| 266 | "(clear) blending 0/0", scanline_clear, init_y_noop }, |
| 267 | { { { 0x00000000, 0x00000000, { 0x00000000, 0x00000000 } }, |
| 268 | { 0x0000003F, 0x00000000, { 0x00000000, 0x00000000 } } }, |
| 269 | "(error) invalid color-buffer format", scanline_noop, init_y_error }, |
| 270 | }; |
| 271 | static const needs_filter_t noblend1to1 = { |
| 272 | // (disregard dithering, see below) |
| 273 | { 0x03010100, 0x00000077, { 0x00000A00, 0x00000000 } }, |
| 274 | { 0xFFFFFFC0, 0xFFFFFEFF, { 0xFFFFFFC0, 0x0000003F } } |
| 275 | }; |
| 276 | static const needs_filter_t fill16noblend = { |
| 277 | { 0x03010100, 0x00000077, { 0x00000000, 0x00000000 } }, |
| 278 | { 0xFFFFFFC0, 0xFFFFFFFF, { 0x0000003F, 0x0000003F } } |
| 279 | }; |
| 280 | |
| 281 | // ---------------------------------------------------------------------------- |
| 282 | |
| 283 | #if ANDROID_ARM_CODEGEN |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 284 | |
| 285 | #if defined(__mips__) |
| 286 | static CodeCache gCodeCache(32 * 1024); |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 287 | #elif defined(__aarch64__) |
| 288 | static CodeCache gCodeCache(48 * 1024); |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 289 | #else |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 290 | static CodeCache gCodeCache(12 * 1024); |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 291 | #endif |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 292 | |
| 293 | class ScanlineAssembly : public Assembly { |
| 294 | AssemblyKey<needs_t> mKey; |
| 295 | public: |
| 296 | ScanlineAssembly(needs_t needs, size_t size) |
| 297 | : Assembly(size), mKey(needs) { } |
| 298 | const AssemblyKey<needs_t>& key() const { return mKey; } |
| 299 | }; |
| 300 | #endif |
| 301 | |
| 302 | // ---------------------------------------------------------------------------- |
| 303 | |
| 304 | void ggl_init_scanline(context_t* c) |
| 305 | { |
| 306 | c->init_y = init_y; |
| 307 | c->step_y = step_y__generic; |
| 308 | c->scanline = scanline; |
| 309 | } |
| 310 | |
| 311 | void ggl_uninit_scanline(context_t* c) |
| 312 | { |
| 313 | if (c->state.buffers.coverage) |
| 314 | free(c->state.buffers.coverage); |
| 315 | #if ANDROID_ARM_CODEGEN |
| 316 | if (c->scanline_as) |
| 317 | c->scanline_as->decStrong(c); |
| 318 | #endif |
| 319 | } |
| 320 | |
| 321 | // ---------------------------------------------------------------------------- |
| 322 | |
| 323 | static void pick_scanline(context_t* c) |
| 324 | { |
| 325 | #if (!defined(DEBUG__CODEGEN_ONLY) || (DEBUG__CODEGEN_ONLY == 0)) |
| 326 | |
| 327 | #if ANDROID_CODEGEN == ANDROID_CODEGEN_GENERIC |
| 328 | c->init_y = init_y; |
| 329 | c->step_y = step_y__generic; |
| 330 | c->scanline = scanline; |
| 331 | return; |
| 332 | #endif |
| 333 | |
| 334 | //printf("*** needs [%08lx:%08lx:%08lx:%08lx]\n", |
| 335 | // c->state.needs.n, c->state.needs.p, |
| 336 | // c->state.needs.t[0], c->state.needs.t[1]); |
| 337 | |
| 338 | // first handle the special case that we cannot test with a filter |
| 339 | const uint32_t cb_format = GGL_READ_NEEDS(CB_FORMAT, c->state.needs.n); |
| 340 | if (GGL_READ_NEEDS(T_FORMAT, c->state.needs.t[0]) == cb_format) { |
| 341 | if (c->state.needs.match(noblend1to1)) { |
| 342 | // this will match regardless of dithering state, since both |
| 343 | // src and dest have the same format anyway, there is no dithering |
| 344 | // to be done. |
| 345 | const GGLFormat* f = |
| 346 | &(c->formats[GGL_READ_NEEDS(T_FORMAT, c->state.needs.t[0])]); |
| 347 | if ((f->components == GGL_RGB) || |
| 348 | (f->components == GGL_RGBA) || |
| 349 | (f->components == GGL_LUMINANCE) || |
| 350 | (f->components == GGL_LUMINANCE_ALPHA)) |
| 351 | { |
| 352 | // format must have all of RGB components |
| 353 | // (so the current color doesn't show through) |
| 354 | c->scanline = scanline_memcpy; |
| 355 | c->init_y = init_y_noop; |
| 356 | return; |
| 357 | } |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | if (c->state.needs.match(fill16noblend)) { |
| 362 | c->init_y = init_y_packed; |
| 363 | switch (c->formats[cb_format].size) { |
| 364 | case 1: c->scanline = scanline_memset8; return; |
| 365 | case 2: c->scanline = scanline_memset16; return; |
| 366 | case 4: c->scanline = scanline_memset32; return; |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | const int numFilters = sizeof(shortcuts)/sizeof(shortcut_t); |
| 371 | for (int i=0 ; i<numFilters ; i++) { |
| 372 | if (c->state.needs.match(shortcuts[i].filter)) { |
| 373 | c->scanline = shortcuts[i].scanline; |
| 374 | c->init_y = shortcuts[i].init_y; |
| 375 | return; |
| 376 | } |
| 377 | } |
| 378 | |
Vladimir Chtchetkine | dccddee | 2011-08-29 10:02:24 -0700 | [diff] [blame] | 379 | #if DEBUG_NEEDS |
Steve Block | 4163b45 | 2012-01-04 19:19:03 +0000 | [diff] [blame] | 380 | ALOGI("Needs: n=0x%08x p=0x%08x t0=0x%08x t1=0x%08x", |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 381 | c->state.needs.n, c->state.needs.p, |
| 382 | c->state.needs.t[0], c->state.needs.t[1]); |
| 383 | #endif |
| 384 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 385 | #endif // DEBUG__CODEGEN_ONLY |
| 386 | |
| 387 | c->init_y = init_y; |
| 388 | c->step_y = step_y__generic; |
| 389 | |
| 390 | #if ANDROID_ARM_CODEGEN |
| 391 | // we're going to have to generate some code... |
| 392 | // here, generate code for our pixel pipeline |
| 393 | const AssemblyKey<needs_t> key(c->state.needs); |
| 394 | sp<Assembly> assembly = gCodeCache.lookup(key); |
| 395 | if (assembly == 0) { |
| 396 | // create a new assembly region |
| 397 | sp<ScanlineAssembly> a = new ScanlineAssembly(c->state.needs, |
| 398 | ASSEMBLY_SCRATCH_SIZE); |
| 399 | // initialize our assembler |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 400 | #if defined(__arm__) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 401 | GGLAssembler assembler( new ARMAssembler(a) ); |
| 402 | //GGLAssembler assembler( |
| 403 | // new ARMAssemblerOptimizer(new ARMAssembler(a)) ); |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 404 | #endif |
| 405 | #if defined(__mips__) |
| 406 | GGLAssembler assembler( new ArmToMipsAssembler(a) ); |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 407 | #elif defined(__aarch64__) |
Colin Cross | d4146e6 | 2014-01-21 20:12:28 -0800 | [diff] [blame] | 408 | GGLAssembler assembler( new ArmToArm64Assembler(a) ); |
Paul Lind | 2bc2b79 | 2012-02-01 10:54:19 -0800 | [diff] [blame] | 409 | #endif |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 410 | // generate the scanline code for the given needs |
| 411 | int err = assembler.scanline(c->state.needs, c); |
| 412 | if (ggl_likely(!err)) { |
| 413 | // finally, cache this assembly |
| 414 | err = gCodeCache.cache(a->key(), a); |
| 415 | } |
| 416 | if (ggl_unlikely(err)) { |
Steve Block | 8aeb6e2 | 2012-01-06 14:13:42 +0000 | [diff] [blame] | 417 | ALOGE("error generating or caching assembly. Reverting to NOP."); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 418 | c->scanline = scanline_noop; |
| 419 | c->init_y = init_y_noop; |
| 420 | c->step_y = step_y__nop; |
| 421 | return; |
| 422 | } |
| 423 | assembly = a; |
| 424 | } |
| 425 | |
| 426 | // release the previous assembly |
| 427 | if (c->scanline_as) { |
| 428 | c->scanline_as->decStrong(c); |
| 429 | } |
| 430 | |
Steve Block | 4163b45 | 2012-01-04 19:19:03 +0000 | [diff] [blame] | 431 | //ALOGI("using generated pixel-pipeline"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 432 | c->scanline_as = assembly.get(); |
| 433 | c->scanline_as->incStrong(c); // hold on to assembly |
| 434 | c->scanline = (void(*)(context_t* c))assembly->base(); |
| 435 | #else |
Steve Block | 4f07a1f | 2012-01-05 22:25:38 +0000 | [diff] [blame] | 436 | // ALOGW("using generic (slow) pixel-pipeline"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 437 | c->scanline = scanline; |
| 438 | #endif |
| 439 | } |
| 440 | |
| 441 | void ggl_pick_scanline(context_t* c) |
| 442 | { |
| 443 | pick_scanline(c); |
| 444 | if ((c->state.enables & GGL_ENABLE_W) && |
| 445 | (c->state.enables & GGL_ENABLE_TMUS)) |
| 446 | { |
| 447 | c->span = c->scanline; |
| 448 | c->scanline = scanline_perspective; |
| 449 | if (!(c->state.enabled_tmu & (c->state.enabled_tmu - 1))) { |
| 450 | // only one TMU enabled |
| 451 | c->scanline = scanline_perspective_single; |
| 452 | } |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | // ---------------------------------------------------------------------------- |
| 457 | |
| 458 | static void blending(context_t* c, pixel_t* fragment, pixel_t* fb); |
| 459 | static void blend_factor(context_t* c, pixel_t* r, uint32_t factor, |
| 460 | const pixel_t* src, const pixel_t* dst); |
| 461 | static void rescale(uint32_t& u, uint8_t& su, uint32_t& v, uint8_t& sv); |
| 462 | |
| 463 | #if ANDROID_ARM_CODEGEN && (ANDROID_CODEGEN == ANDROID_CODEGEN_GENERATED) |
| 464 | |
| 465 | // no need to compile the generic-pipeline, it can't be reached |
| 466 | void scanline(context_t*) |
| 467 | { |
| 468 | } |
| 469 | |
| 470 | #else |
| 471 | |
| 472 | void rescale(uint32_t& u, uint8_t& su, uint32_t& v, uint8_t& sv) |
| 473 | { |
| 474 | if (su && sv) { |
| 475 | if (su > sv) { |
| 476 | v = ggl_expand(v, sv, su); |
| 477 | sv = su; |
| 478 | } else if (su < sv) { |
| 479 | u = ggl_expand(u, su, sv); |
| 480 | su = sv; |
| 481 | } |
| 482 | } |
| 483 | } |
| 484 | |
| 485 | void blending(context_t* c, pixel_t* fragment, pixel_t* fb) |
| 486 | { |
| 487 | rescale(fragment->c[0], fragment->s[0], fb->c[0], fb->s[0]); |
| 488 | rescale(fragment->c[1], fragment->s[1], fb->c[1], fb->s[1]); |
| 489 | rescale(fragment->c[2], fragment->s[2], fb->c[2], fb->s[2]); |
| 490 | rescale(fragment->c[3], fragment->s[3], fb->c[3], fb->s[3]); |
| 491 | |
| 492 | pixel_t sf, df; |
| 493 | blend_factor(c, &sf, c->state.blend.src, fragment, fb); |
| 494 | blend_factor(c, &df, c->state.blend.dst, fragment, fb); |
| 495 | |
| 496 | fragment->c[1] = |
| 497 | gglMulAddx(fragment->c[1], sf.c[1], gglMulx(fb->c[1], df.c[1])); |
| 498 | fragment->c[2] = |
| 499 | gglMulAddx(fragment->c[2], sf.c[2], gglMulx(fb->c[2], df.c[2])); |
| 500 | fragment->c[3] = |
| 501 | gglMulAddx(fragment->c[3], sf.c[3], gglMulx(fb->c[3], df.c[3])); |
| 502 | |
| 503 | if (c->state.blend.alpha_separate) { |
| 504 | blend_factor(c, &sf, c->state.blend.src_alpha, fragment, fb); |
| 505 | blend_factor(c, &df, c->state.blend.dst_alpha, fragment, fb); |
| 506 | } |
| 507 | |
| 508 | fragment->c[0] = |
| 509 | gglMulAddx(fragment->c[0], sf.c[0], gglMulx(fb->c[0], df.c[0])); |
| 510 | |
| 511 | // clamp to 1.0 |
| 512 | if (fragment->c[0] >= (1LU<<fragment->s[0])) |
| 513 | fragment->c[0] = (1<<fragment->s[0])-1; |
| 514 | if (fragment->c[1] >= (1LU<<fragment->s[1])) |
| 515 | fragment->c[1] = (1<<fragment->s[1])-1; |
| 516 | if (fragment->c[2] >= (1LU<<fragment->s[2])) |
| 517 | fragment->c[2] = (1<<fragment->s[2])-1; |
| 518 | if (fragment->c[3] >= (1LU<<fragment->s[3])) |
| 519 | fragment->c[3] = (1<<fragment->s[3])-1; |
| 520 | } |
| 521 | |
| 522 | static inline int blendfactor(uint32_t x, uint32_t size, uint32_t def = 0) |
| 523 | { |
| 524 | if (!size) |
| 525 | return def; |
| 526 | |
| 527 | // scale to 16 bits |
| 528 | if (size > 16) { |
| 529 | x >>= (size - 16); |
| 530 | } else if (size < 16) { |
| 531 | x = ggl_expand(x, size, 16); |
| 532 | } |
| 533 | x += x >> 15; |
| 534 | return x; |
| 535 | } |
| 536 | |
| 537 | void blend_factor(context_t* c, pixel_t* r, |
| 538 | uint32_t factor, const pixel_t* src, const pixel_t* dst) |
| 539 | { |
| 540 | switch (factor) { |
| 541 | case GGL_ZERO: |
| 542 | r->c[1] = |
| 543 | r->c[2] = |
| 544 | r->c[3] = |
| 545 | r->c[0] = 0; |
| 546 | break; |
| 547 | case GGL_ONE: |
| 548 | r->c[1] = |
| 549 | r->c[2] = |
| 550 | r->c[3] = |
| 551 | r->c[0] = FIXED_ONE; |
| 552 | break; |
| 553 | case GGL_DST_COLOR: |
| 554 | r->c[1] = blendfactor(dst->c[1], dst->s[1]); |
| 555 | r->c[2] = blendfactor(dst->c[2], dst->s[2]); |
| 556 | r->c[3] = blendfactor(dst->c[3], dst->s[3]); |
| 557 | r->c[0] = blendfactor(dst->c[0], dst->s[0]); |
| 558 | break; |
| 559 | case GGL_SRC_COLOR: |
| 560 | r->c[1] = blendfactor(src->c[1], src->s[1]); |
| 561 | r->c[2] = blendfactor(src->c[2], src->s[2]); |
| 562 | r->c[3] = blendfactor(src->c[3], src->s[3]); |
| 563 | r->c[0] = blendfactor(src->c[0], src->s[0]); |
| 564 | break; |
| 565 | case GGL_ONE_MINUS_DST_COLOR: |
| 566 | r->c[1] = FIXED_ONE - blendfactor(dst->c[1], dst->s[1]); |
| 567 | r->c[2] = FIXED_ONE - blendfactor(dst->c[2], dst->s[2]); |
| 568 | r->c[3] = FIXED_ONE - blendfactor(dst->c[3], dst->s[3]); |
| 569 | r->c[0] = FIXED_ONE - blendfactor(dst->c[0], dst->s[0]); |
| 570 | break; |
| 571 | case GGL_ONE_MINUS_SRC_COLOR: |
| 572 | r->c[1] = FIXED_ONE - blendfactor(src->c[1], src->s[1]); |
| 573 | r->c[2] = FIXED_ONE - blendfactor(src->c[2], src->s[2]); |
| 574 | r->c[3] = FIXED_ONE - blendfactor(src->c[3], src->s[3]); |
| 575 | r->c[0] = FIXED_ONE - blendfactor(src->c[0], src->s[0]); |
| 576 | break; |
| 577 | case GGL_SRC_ALPHA: |
| 578 | r->c[1] = |
| 579 | r->c[2] = |
| 580 | r->c[3] = |
| 581 | r->c[0] = blendfactor(src->c[0], src->s[0], FIXED_ONE); |
| 582 | break; |
| 583 | case GGL_ONE_MINUS_SRC_ALPHA: |
| 584 | r->c[1] = |
| 585 | r->c[2] = |
| 586 | r->c[3] = |
| 587 | r->c[0] = FIXED_ONE - blendfactor(src->c[0], src->s[0], FIXED_ONE); |
| 588 | break; |
| 589 | case GGL_DST_ALPHA: |
| 590 | r->c[1] = |
| 591 | r->c[2] = |
| 592 | r->c[3] = |
| 593 | r->c[0] = blendfactor(dst->c[0], dst->s[0], FIXED_ONE); |
| 594 | break; |
| 595 | case GGL_ONE_MINUS_DST_ALPHA: |
| 596 | r->c[1] = |
| 597 | r->c[2] = |
| 598 | r->c[3] = |
| 599 | r->c[0] = FIXED_ONE - blendfactor(dst->c[0], dst->s[0], FIXED_ONE); |
| 600 | break; |
| 601 | case GGL_SRC_ALPHA_SATURATE: |
| 602 | // XXX: GGL_SRC_ALPHA_SATURATE |
| 603 | break; |
| 604 | } |
| 605 | } |
| 606 | |
| 607 | static GGLfixed wrapping(int32_t coord, uint32_t size, int tx_wrap) |
| 608 | { |
| 609 | GGLfixed d; |
| 610 | if (tx_wrap == GGL_REPEAT) { |
| 611 | d = (uint32_t(coord)>>16) * size; |
| 612 | } else if (tx_wrap == GGL_CLAMP) { // CLAMP_TO_EDGE semantics |
| 613 | const GGLfixed clamp_min = FIXED_HALF; |
| 614 | const GGLfixed clamp_max = (size << 16) - FIXED_HALF; |
| 615 | if (coord < clamp_min) coord = clamp_min; |
| 616 | if (coord > clamp_max) coord = clamp_max; |
| 617 | d = coord; |
| 618 | } else { // 1:1 |
| 619 | const GGLfixed clamp_min = 0; |
| 620 | const GGLfixed clamp_max = (size << 16); |
| 621 | if (coord < clamp_min) coord = clamp_min; |
| 622 | if (coord > clamp_max) coord = clamp_max; |
| 623 | d = coord; |
| 624 | } |
| 625 | return d; |
| 626 | } |
| 627 | |
| 628 | static inline |
| 629 | GGLcolor ADJUST_COLOR_ITERATOR(GGLcolor v, GGLcolor dvdx, int len) |
| 630 | { |
| 631 | const int32_t end = dvdx * (len-1) + v; |
| 632 | if (end < 0) |
| 633 | v -= end; |
| 634 | v &= ~(v>>31); |
| 635 | return v; |
| 636 | } |
| 637 | |
| 638 | void scanline(context_t* c) |
| 639 | { |
| 640 | const uint32_t enables = c->state.enables; |
| 641 | const int xs = c->iterators.xl; |
| 642 | const int x1 = c->iterators.xr; |
| 643 | int xc = x1 - xs; |
| 644 | const int16_t* covPtr = c->state.buffers.coverage + xs; |
| 645 | |
| 646 | // All iterated values are sampled at the pixel center |
| 647 | |
| 648 | // reset iterators for that scanline... |
| 649 | GGLcolor r, g, b, a; |
| 650 | iterators_t& ci = c->iterators; |
| 651 | if (enables & GGL_ENABLE_SMOOTH) { |
| 652 | r = (xs * c->shade.drdx) + ci.ydrdy; |
| 653 | g = (xs * c->shade.dgdx) + ci.ydgdy; |
| 654 | b = (xs * c->shade.dbdx) + ci.ydbdy; |
| 655 | a = (xs * c->shade.dadx) + ci.ydady; |
| 656 | r = ADJUST_COLOR_ITERATOR(r, c->shade.drdx, xc); |
| 657 | g = ADJUST_COLOR_ITERATOR(g, c->shade.dgdx, xc); |
| 658 | b = ADJUST_COLOR_ITERATOR(b, c->shade.dbdx, xc); |
| 659 | a = ADJUST_COLOR_ITERATOR(a, c->shade.dadx, xc); |
| 660 | } else { |
| 661 | r = ci.ydrdy; |
| 662 | g = ci.ydgdy; |
| 663 | b = ci.ydbdy; |
| 664 | a = ci.ydady; |
| 665 | } |
| 666 | |
| 667 | // z iterators are 1.31 |
| 668 | GGLfixed z = (xs * c->shade.dzdx) + ci.ydzdy; |
| 669 | GGLfixed f = (xs * c->shade.dfdx) + ci.ydfdy; |
| 670 | |
| 671 | struct { |
| 672 | GGLfixed s, t; |
| 673 | } tc[GGL_TEXTURE_UNIT_COUNT]; |
| 674 | if (enables & GGL_ENABLE_TMUS) { |
| 675 | for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) { |
| 676 | if (c->state.texture[i].enable) { |
| 677 | texture_iterators_t& ti = c->state.texture[i].iterators; |
| 678 | if (enables & GGL_ENABLE_W) { |
| 679 | tc[i].s = ti.ydsdy; |
| 680 | tc[i].t = ti.ydtdy; |
| 681 | } else { |
| 682 | tc[i].s = (xs * ti.dsdx) + ti.ydsdy; |
| 683 | tc[i].t = (xs * ti.dtdx) + ti.ydtdy; |
| 684 | } |
| 685 | } |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | pixel_t fragment; |
| 690 | pixel_t texel; |
| 691 | pixel_t fb; |
| 692 | |
| 693 | uint32_t x = xs; |
| 694 | uint32_t y = c->iterators.y; |
| 695 | |
| 696 | while (xc--) { |
| 697 | |
| 698 | { // just a scope |
| 699 | |
| 700 | // read color (convert to 8 bits by keeping only the integer part) |
| 701 | fragment.s[1] = fragment.s[2] = |
| 702 | fragment.s[3] = fragment.s[0] = 8; |
| 703 | fragment.c[1] = r >> (GGL_COLOR_BITS-8); |
| 704 | fragment.c[2] = g >> (GGL_COLOR_BITS-8); |
| 705 | fragment.c[3] = b >> (GGL_COLOR_BITS-8); |
| 706 | fragment.c[0] = a >> (GGL_COLOR_BITS-8); |
| 707 | |
| 708 | // texturing |
| 709 | if (enables & GGL_ENABLE_TMUS) { |
| 710 | for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) { |
| 711 | texture_t& tx = c->state.texture[i]; |
| 712 | if (!tx.enable) |
| 713 | continue; |
| 714 | texture_iterators_t& ti = tx.iterators; |
| 715 | int32_t u, v; |
| 716 | |
| 717 | // s-coordinate |
| 718 | if (tx.s_coord != GGL_ONE_TO_ONE) { |
| 719 | const int w = tx.surface.width; |
| 720 | u = wrapping(tc[i].s, w, tx.s_wrap); |
| 721 | tc[i].s += ti.dsdx; |
| 722 | } else { |
| 723 | u = (((tx.shade.is0>>16) + x)<<16) + FIXED_HALF; |
| 724 | } |
| 725 | |
| 726 | // t-coordinate |
| 727 | if (tx.t_coord != GGL_ONE_TO_ONE) { |
| 728 | const int h = tx.surface.height; |
| 729 | v = wrapping(tc[i].t, h, tx.t_wrap); |
| 730 | tc[i].t += ti.dtdx; |
| 731 | } else { |
| 732 | v = (((tx.shade.it0>>16) + y)<<16) + FIXED_HALF; |
| 733 | } |
| 734 | |
| 735 | // read texture |
| 736 | if (tx.mag_filter == GGL_NEAREST && |
| 737 | tx.min_filter == GGL_NEAREST) |
| 738 | { |
| 739 | u >>= 16; |
| 740 | v >>= 16; |
| 741 | tx.surface.read(&tx.surface, c, u, v, &texel); |
| 742 | } else { |
| 743 | const int w = tx.surface.width; |
| 744 | const int h = tx.surface.height; |
| 745 | u -= FIXED_HALF; |
| 746 | v -= FIXED_HALF; |
| 747 | int u0 = u >> 16; |
| 748 | int v0 = v >> 16; |
| 749 | int u1 = u0 + 1; |
| 750 | int v1 = v0 + 1; |
| 751 | if (tx.s_wrap == GGL_REPEAT) { |
| 752 | if (u0<0) u0 += w; |
| 753 | if (u1<0) u1 += w; |
| 754 | if (u0>=w) u0 -= w; |
| 755 | if (u1>=w) u1 -= w; |
| 756 | } else { |
| 757 | if (u0<0) u0 = 0; |
| 758 | if (u1<0) u1 = 0; |
| 759 | if (u0>=w) u0 = w-1; |
| 760 | if (u1>=w) u1 = w-1; |
| 761 | } |
| 762 | if (tx.t_wrap == GGL_REPEAT) { |
| 763 | if (v0<0) v0 += h; |
| 764 | if (v1<0) v1 += h; |
| 765 | if (v0>=h) v0 -= h; |
| 766 | if (v1>=h) v1 -= h; |
| 767 | } else { |
| 768 | if (v0<0) v0 = 0; |
| 769 | if (v1<0) v1 = 0; |
| 770 | if (v0>=h) v0 = h-1; |
| 771 | if (v1>=h) v1 = h-1; |
| 772 | } |
| 773 | pixel_t texels[4]; |
| 774 | uint32_t mm[4]; |
| 775 | tx.surface.read(&tx.surface, c, u0, v0, &texels[0]); |
| 776 | tx.surface.read(&tx.surface, c, u0, v1, &texels[1]); |
| 777 | tx.surface.read(&tx.surface, c, u1, v0, &texels[2]); |
| 778 | tx.surface.read(&tx.surface, c, u1, v1, &texels[3]); |
| 779 | u = (u >> 12) & 0xF; |
| 780 | v = (v >> 12) & 0xF; |
| 781 | u += u>>3; |
| 782 | v += v>>3; |
| 783 | mm[0] = (0x10 - u) * (0x10 - v); |
| 784 | mm[1] = (0x10 - u) * v; |
| 785 | mm[2] = u * (0x10 - v); |
| 786 | mm[3] = 0x100 - (mm[0] + mm[1] + mm[2]); |
| 787 | for (int j=0 ; j<4 ; j++) { |
| 788 | texel.s[j] = texels[0].s[j]; |
| 789 | if (!texel.s[j]) continue; |
| 790 | texel.s[j] += 8; |
| 791 | texel.c[j] = texels[0].c[j]*mm[0] + |
| 792 | texels[1].c[j]*mm[1] + |
| 793 | texels[2].c[j]*mm[2] + |
| 794 | texels[3].c[j]*mm[3] ; |
| 795 | } |
| 796 | } |
| 797 | |
| 798 | // Texture environnement... |
| 799 | for (int j=0 ; j<4 ; j++) { |
| 800 | uint32_t& Cf = fragment.c[j]; |
| 801 | uint32_t& Ct = texel.c[j]; |
| 802 | uint8_t& sf = fragment.s[j]; |
| 803 | uint8_t& st = texel.s[j]; |
| 804 | uint32_t At = texel.c[0]; |
| 805 | uint8_t sat = texel.s[0]; |
| 806 | switch (tx.env) { |
| 807 | case GGL_REPLACE: |
| 808 | if (st) { |
| 809 | Cf = Ct; |
| 810 | sf = st; |
| 811 | } |
| 812 | break; |
| 813 | case GGL_MODULATE: |
| 814 | if (st) { |
| 815 | uint32_t factor = Ct + (Ct>>(st-1)); |
| 816 | Cf = (Cf * factor) >> st; |
| 817 | } |
| 818 | break; |
| 819 | case GGL_DECAL: |
| 820 | if (sat) { |
| 821 | rescale(Cf, sf, Ct, st); |
| 822 | Cf += ((Ct - Cf) * (At + (At>>(sat-1)))) >> sat; |
| 823 | } |
| 824 | break; |
| 825 | case GGL_BLEND: |
| 826 | if (st) { |
| 827 | uint32_t Cc = tx.env_color[i]; |
| 828 | if (sf>8) Cc = (Cc * ((1<<sf)-1))>>8; |
| 829 | else if (sf<8) Cc = (Cc - (Cc>>(8-sf)))>>(8-sf); |
| 830 | uint32_t factor = Ct + (Ct>>(st-1)); |
| 831 | Cf = ((((1<<st) - factor) * Cf) + Ct*Cc)>>st; |
| 832 | } |
| 833 | break; |
| 834 | case GGL_ADD: |
| 835 | if (st) { |
| 836 | rescale(Cf, sf, Ct, st); |
| 837 | Cf += Ct; |
| 838 | } |
| 839 | break; |
| 840 | } |
| 841 | } |
| 842 | } |
| 843 | } |
| 844 | |
| 845 | // coverage application |
| 846 | if (enables & GGL_ENABLE_AA) { |
| 847 | int16_t cf = *covPtr++; |
| 848 | fragment.c[0] = (int64_t(fragment.c[0]) * cf) >> 15; |
| 849 | } |
| 850 | |
| 851 | // alpha-test |
| 852 | if (enables & GGL_ENABLE_ALPHA_TEST) { |
| 853 | GGLcolor ref = c->state.alpha_test.ref; |
| 854 | GGLcolor alpha = (uint64_t(fragment.c[0]) * |
| 855 | ((1<<GGL_COLOR_BITS)-1)) / ((1<<fragment.s[0])-1); |
| 856 | switch (c->state.alpha_test.func) { |
| 857 | case GGL_NEVER: goto discard; |
| 858 | case GGL_LESS: if (alpha<ref) break; goto discard; |
| 859 | case GGL_EQUAL: if (alpha==ref) break; goto discard; |
| 860 | case GGL_LEQUAL: if (alpha<=ref) break; goto discard; |
| 861 | case GGL_GREATER: if (alpha>ref) break; goto discard; |
| 862 | case GGL_NOTEQUAL: if (alpha!=ref) break; goto discard; |
| 863 | case GGL_GEQUAL: if (alpha>=ref) break; goto discard; |
| 864 | } |
| 865 | } |
| 866 | |
| 867 | // depth test |
| 868 | if (c->state.buffers.depth.format) { |
| 869 | if (enables & GGL_ENABLE_DEPTH_TEST) { |
| 870 | surface_t* cb = &(c->state.buffers.depth); |
| 871 | uint16_t* p = (uint16_t*)(cb->data)+(x+(cb->stride*y)); |
| 872 | uint16_t zz = uint32_t(z)>>(16); |
| 873 | uint16_t depth = *p; |
| 874 | switch (c->state.depth_test.func) { |
| 875 | case GGL_NEVER: goto discard; |
| 876 | case GGL_LESS: if (zz<depth) break; goto discard; |
| 877 | case GGL_EQUAL: if (zz==depth) break; goto discard; |
| 878 | case GGL_LEQUAL: if (zz<=depth) break; goto discard; |
| 879 | case GGL_GREATER: if (zz>depth) break; goto discard; |
| 880 | case GGL_NOTEQUAL: if (zz!=depth) break; goto discard; |
| 881 | case GGL_GEQUAL: if (zz>=depth) break; goto discard; |
| 882 | } |
| 883 | // depth buffer is not enabled, if depth-test is not enabled |
| 884 | /* |
| 885 | fragment.s[1] = fragment.s[2] = |
| 886 | fragment.s[3] = fragment.s[0] = 8; |
| 887 | fragment.c[1] = |
| 888 | fragment.c[2] = |
| 889 | fragment.c[3] = |
| 890 | fragment.c[0] = 255 - (zz>>8); |
| 891 | */ |
| 892 | if (c->state.mask.depth) { |
| 893 | *p = zz; |
| 894 | } |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | // fog |
| 899 | if (enables & GGL_ENABLE_FOG) { |
| 900 | for (int i=1 ; i<=3 ; i++) { |
| 901 | GGLfixed fc = (c->state.fog.color[i] * 0x10000) / 0xFF; |
| 902 | uint32_t& c = fragment.c[i]; |
| 903 | uint8_t& s = fragment.s[i]; |
| 904 | c = (c * 0x10000) / ((1<<s)-1); |
| 905 | c = gglMulAddx(c, f, gglMulx(fc, 0x10000 - f)); |
| 906 | s = 16; |
| 907 | } |
| 908 | } |
| 909 | |
| 910 | // blending |
| 911 | if (enables & GGL_ENABLE_BLENDING) { |
| 912 | fb.c[1] = fb.c[2] = fb.c[3] = fb.c[0] = 0; // placate valgrind |
| 913 | fb.s[1] = fb.s[2] = fb.s[3] = fb.s[0] = 0; |
| 914 | c->state.buffers.color.read( |
| 915 | &(c->state.buffers.color), c, x, y, &fb); |
| 916 | blending( c, &fragment, &fb ); |
| 917 | } |
| 918 | |
| 919 | // write |
| 920 | c->state.buffers.color.write( |
| 921 | &(c->state.buffers.color), c, x, y, &fragment); |
| 922 | } |
| 923 | |
| 924 | discard: |
| 925 | // iterate... |
| 926 | x += 1; |
| 927 | if (enables & GGL_ENABLE_SMOOTH) { |
| 928 | r += c->shade.drdx; |
| 929 | g += c->shade.dgdx; |
| 930 | b += c->shade.dbdx; |
| 931 | a += c->shade.dadx; |
| 932 | } |
| 933 | z += c->shade.dzdx; |
| 934 | f += c->shade.dfdx; |
| 935 | } |
| 936 | } |
| 937 | |
| 938 | #endif // ANDROID_ARM_CODEGEN && (ANDROID_CODEGEN == ANDROID_CODEGEN_GENERATED) |
| 939 | |
| 940 | // ---------------------------------------------------------------------------- |
| 941 | #if 0 |
| 942 | #pragma mark - |
| 943 | #pragma mark Scanline |
| 944 | #endif |
| 945 | |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 946 | /* Used to parse a 32-bit source texture linearly. Usage is: |
| 947 | * |
| 948 | * horz_iterator32 hi(context); |
| 949 | * while (...) { |
| 950 | * uint32_t src_pixel = hi.get_pixel32(); |
| 951 | * ... |
| 952 | * } |
| 953 | * |
| 954 | * Use only for one-to-one texture mapping. |
| 955 | */ |
| 956 | struct horz_iterator32 { |
| 957 | horz_iterator32(context_t* c) { |
| 958 | const int x = c->iterators.xl; |
| 959 | const int y = c->iterators.y; |
| 960 | texture_t& tx = c->state.texture[0]; |
| 961 | const int32_t u = (tx.shade.is0>>16) + x; |
| 962 | const int32_t v = (tx.shade.it0>>16) + y; |
| 963 | m_src = reinterpret_cast<uint32_t*>(tx.surface.data)+(u+(tx.surface.stride*v)); |
| 964 | } |
| 965 | uint32_t get_pixel32() { |
| 966 | return *m_src++; |
| 967 | } |
| 968 | protected: |
| 969 | uint32_t* m_src; |
| 970 | }; |
| 971 | |
| 972 | /* A variant for 16-bit source textures. */ |
| 973 | struct horz_iterator16 { |
| 974 | horz_iterator16(context_t* c) { |
| 975 | const int x = c->iterators.xl; |
| 976 | const int y = c->iterators.y; |
| 977 | texture_t& tx = c->state.texture[0]; |
| 978 | const int32_t u = (tx.shade.is0>>16) + x; |
| 979 | const int32_t v = (tx.shade.it0>>16) + y; |
| 980 | m_src = reinterpret_cast<uint16_t*>(tx.surface.data)+(u+(tx.surface.stride*v)); |
| 981 | } |
| 982 | uint16_t get_pixel16() { |
| 983 | return *m_src++; |
| 984 | } |
| 985 | protected: |
| 986 | uint16_t* m_src; |
| 987 | }; |
| 988 | |
| 989 | /* A clamp iterator is used to iterate inside a texture with GGL_CLAMP. |
| 990 | * After initialization, call get_src16() or get_src32() to get the current |
| 991 | * texture pixel value. |
| 992 | */ |
| 993 | struct clamp_iterator { |
| 994 | clamp_iterator(context_t* c) { |
| 995 | const int xs = c->iterators.xl; |
| 996 | texture_t& tx = c->state.texture[0]; |
| 997 | texture_iterators_t& ti = tx.iterators; |
| 998 | m_s = (xs * ti.dsdx) + ti.ydsdy; |
| 999 | m_t = (xs * ti.dtdx) + ti.ydtdy; |
| 1000 | m_ds = ti.dsdx; |
| 1001 | m_dt = ti.dtdx; |
| 1002 | m_width_m1 = tx.surface.width - 1; |
| 1003 | m_height_m1 = tx.surface.height - 1; |
| 1004 | m_data = tx.surface.data; |
| 1005 | m_stride = tx.surface.stride; |
| 1006 | } |
| 1007 | uint16_t get_pixel16() { |
| 1008 | int u, v; |
| 1009 | get_uv(u, v); |
| 1010 | uint16_t* src = reinterpret_cast<uint16_t*>(m_data) + (u + (m_stride*v)); |
| 1011 | return src[0]; |
| 1012 | } |
| 1013 | uint32_t get_pixel32() { |
| 1014 | int u, v; |
| 1015 | get_uv(u, v); |
| 1016 | uint32_t* src = reinterpret_cast<uint32_t*>(m_data) + (u + (m_stride*v)); |
| 1017 | return src[0]; |
| 1018 | } |
| 1019 | private: |
| 1020 | void get_uv(int& u, int& v) { |
| 1021 | int uu = m_s >> 16; |
| 1022 | int vv = m_t >> 16; |
| 1023 | if (uu < 0) |
| 1024 | uu = 0; |
| 1025 | if (uu > m_width_m1) |
| 1026 | uu = m_width_m1; |
| 1027 | if (vv < 0) |
| 1028 | vv = 0; |
| 1029 | if (vv > m_height_m1) |
| 1030 | vv = m_height_m1; |
| 1031 | u = uu; |
| 1032 | v = vv; |
| 1033 | m_s += m_ds; |
| 1034 | m_t += m_dt; |
| 1035 | } |
| 1036 | |
| 1037 | GGLfixed m_s, m_t; |
| 1038 | GGLfixed m_ds, m_dt; |
| 1039 | int m_width_m1, m_height_m1; |
| 1040 | uint8_t* m_data; |
| 1041 | int m_stride; |
| 1042 | }; |
| 1043 | |
| 1044 | /* |
| 1045 | * The 'horizontal clamp iterator' variant corresponds to the case where |
| 1046 | * the 'v' coordinate doesn't change. This is useful to avoid one mult and |
| 1047 | * extra adds / checks per pixels, if the blending/processing operation after |
| 1048 | * this is very fast. |
| 1049 | */ |
| 1050 | static int is_context_horizontal(const context_t* c) { |
| 1051 | return (c->state.texture[0].iterators.dtdx == 0); |
| 1052 | } |
| 1053 | |
| 1054 | struct horz_clamp_iterator { |
| 1055 | uint16_t get_pixel16() { |
| 1056 | int u = m_s >> 16; |
| 1057 | m_s += m_ds; |
| 1058 | if (u < 0) |
| 1059 | u = 0; |
| 1060 | if (u > m_width_m1) |
| 1061 | u = m_width_m1; |
| 1062 | const uint16_t* src = reinterpret_cast<const uint16_t*>(m_data); |
| 1063 | return src[u]; |
| 1064 | } |
| 1065 | uint32_t get_pixel32() { |
| 1066 | int u = m_s >> 16; |
| 1067 | m_s += m_ds; |
| 1068 | if (u < 0) |
| 1069 | u = 0; |
| 1070 | if (u > m_width_m1) |
| 1071 | u = m_width_m1; |
| 1072 | const uint32_t* src = reinterpret_cast<const uint32_t*>(m_data); |
| 1073 | return src[u]; |
| 1074 | } |
| 1075 | protected: |
| 1076 | void init(const context_t* c, int shift); |
| 1077 | GGLfixed m_s; |
| 1078 | GGLfixed m_ds; |
| 1079 | int m_width_m1; |
| 1080 | const uint8_t* m_data; |
| 1081 | }; |
| 1082 | |
| 1083 | void horz_clamp_iterator::init(const context_t* c, int shift) |
| 1084 | { |
| 1085 | const int xs = c->iterators.xl; |
| 1086 | const texture_t& tx = c->state.texture[0]; |
| 1087 | const texture_iterators_t& ti = tx.iterators; |
| 1088 | m_s = (xs * ti.dsdx) + ti.ydsdy; |
| 1089 | m_ds = ti.dsdx; |
| 1090 | m_width_m1 = tx.surface.width-1; |
| 1091 | m_data = tx.surface.data; |
| 1092 | |
| 1093 | GGLfixed t = (xs * ti.dtdx) + ti.ydtdy; |
| 1094 | int v = t >> 16; |
| 1095 | if (v < 0) |
| 1096 | v = 0; |
| 1097 | else if (v >= (int)tx.surface.height) |
| 1098 | v = (int)tx.surface.height-1; |
| 1099 | |
| 1100 | m_data += (tx.surface.stride*v) << shift; |
| 1101 | } |
| 1102 | |
| 1103 | struct horz_clamp_iterator16 : horz_clamp_iterator { |
| 1104 | horz_clamp_iterator16(const context_t* c) { |
| 1105 | init(c,1); |
| 1106 | }; |
| 1107 | }; |
| 1108 | |
| 1109 | struct horz_clamp_iterator32 : horz_clamp_iterator { |
| 1110 | horz_clamp_iterator32(context_t* c) { |
| 1111 | init(c,2); |
| 1112 | }; |
| 1113 | }; |
| 1114 | |
| 1115 | /* This is used to perform dithering operations. |
| 1116 | */ |
| 1117 | struct ditherer { |
| 1118 | ditherer(const context_t* c) { |
| 1119 | const int x = c->iterators.xl; |
| 1120 | const int y = c->iterators.y; |
| 1121 | m_line = &c->ditherMatrix[ ((y & GGL_DITHER_MASK)<<GGL_DITHER_ORDER_SHIFT) ]; |
| 1122 | m_index = x & GGL_DITHER_MASK; |
| 1123 | } |
| 1124 | void step(void) { |
| 1125 | m_index++; |
| 1126 | } |
| 1127 | int get_value(void) { |
| 1128 | int ret = m_line[m_index & GGL_DITHER_MASK]; |
| 1129 | m_index++; |
| 1130 | return ret; |
| 1131 | } |
| 1132 | uint16_t abgr8888ToRgb565(uint32_t s) { |
| 1133 | uint32_t r = s & 0xff; |
| 1134 | uint32_t g = (s >> 8) & 0xff; |
| 1135 | uint32_t b = (s >> 16) & 0xff; |
| 1136 | return rgb888ToRgb565(r,g,b); |
| 1137 | } |
| 1138 | /* The following assumes that r/g/b are in the 0..255 range each */ |
| 1139 | uint16_t rgb888ToRgb565(uint32_t& r, uint32_t& g, uint32_t &b) { |
| 1140 | int threshold = get_value(); |
| 1141 | /* dither in on GGL_DITHER_BITS, and each of r, g, b is on 8 bits */ |
| 1142 | r += (threshold >> (GGL_DITHER_BITS-8 +5)); |
| 1143 | g += (threshold >> (GGL_DITHER_BITS-8 +6)); |
| 1144 | b += (threshold >> (GGL_DITHER_BITS-8 +5)); |
| 1145 | if (r > 0xff) |
| 1146 | r = 0xff; |
| 1147 | if (g > 0xff) |
| 1148 | g = 0xff; |
| 1149 | if (b > 0xff) |
| 1150 | b = 0xff; |
| 1151 | return uint16_t(((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3)); |
| 1152 | } |
| 1153 | protected: |
| 1154 | const uint8_t* m_line; |
| 1155 | int m_index; |
| 1156 | }; |
| 1157 | |
| 1158 | /* This structure is used to blend (SRC_OVER) 32-bit source pixels |
| 1159 | * onto 16-bit destination ones. Usage is simply: |
| 1160 | * |
| 1161 | * blender.blend(<32-bit-src-pixel-value>,<ptr-to-16-bit-dest-pixel>) |
| 1162 | */ |
| 1163 | struct blender_32to16 { |
| 1164 | blender_32to16(context_t* c) { } |
| 1165 | void write(uint32_t s, uint16_t* dst) { |
| 1166 | if (s == 0) |
| 1167 | return; |
| 1168 | s = GGL_RGBA_TO_HOST(s); |
| 1169 | int sA = (s>>24); |
| 1170 | if (sA == 0xff) { |
| 1171 | *dst = convertAbgr8888ToRgb565(s); |
| 1172 | } else { |
| 1173 | int f = 0x100 - (sA + (sA>>7)); |
| 1174 | int sR = (s >> ( 3))&0x1F; |
| 1175 | int sG = (s >> ( 8+2))&0x3F; |
| 1176 | int sB = (s >> (16+3))&0x1F; |
| 1177 | uint16_t d = *dst; |
| 1178 | int dR = (d>>11)&0x1f; |
| 1179 | int dG = (d>>5)&0x3f; |
| 1180 | int dB = (d)&0x1f; |
| 1181 | sR += (f*dR)>>8; |
| 1182 | sG += (f*dG)>>8; |
| 1183 | sB += (f*dB)>>8; |
| 1184 | *dst = uint16_t((sR<<11)|(sG<<5)|sB); |
| 1185 | } |
| 1186 | } |
| 1187 | void write(uint32_t s, uint16_t* dst, ditherer& di) { |
| 1188 | if (s == 0) { |
| 1189 | di.step(); |
| 1190 | return; |
| 1191 | } |
| 1192 | s = GGL_RGBA_TO_HOST(s); |
| 1193 | int sA = (s>>24); |
| 1194 | if (sA == 0xff) { |
| 1195 | *dst = di.abgr8888ToRgb565(s); |
| 1196 | } else { |
| 1197 | int threshold = di.get_value() << (8 - GGL_DITHER_BITS); |
| 1198 | int f = 0x100 - (sA + (sA>>7)); |
| 1199 | int sR = (s >> ( 3))&0x1F; |
| 1200 | int sG = (s >> ( 8+2))&0x3F; |
| 1201 | int sB = (s >> (16+3))&0x1F; |
| 1202 | uint16_t d = *dst; |
| 1203 | int dR = (d>>11)&0x1f; |
| 1204 | int dG = (d>>5)&0x3f; |
| 1205 | int dB = (d)&0x1f; |
| 1206 | sR = ((sR << 8) + f*dR + threshold)>>8; |
| 1207 | sG = ((sG << 8) + f*dG + threshold)>>8; |
| 1208 | sB = ((sB << 8) + f*dB + threshold)>>8; |
| 1209 | if (sR > 0x1f) sR = 0x1f; |
| 1210 | if (sG > 0x3f) sG = 0x3f; |
| 1211 | if (sB > 0x1f) sB = 0x1f; |
| 1212 | *dst = uint16_t((sR<<11)|(sG<<5)|sB); |
| 1213 | } |
| 1214 | } |
| 1215 | }; |
| 1216 | |
| 1217 | /* This blender does the same for the 'blend_srca' operation. |
| 1218 | * where dstFactor=srcA*(1-srcA) srcFactor=srcA |
| 1219 | */ |
| 1220 | struct blender_32to16_srcA { |
| 1221 | blender_32to16_srcA(const context_t* c) { } |
| 1222 | void write(uint32_t s, uint16_t* dst) { |
| 1223 | if (!s) { |
| 1224 | return; |
| 1225 | } |
| 1226 | uint16_t d = *dst; |
| 1227 | s = GGL_RGBA_TO_HOST(s); |
| 1228 | int sR = (s >> ( 3))&0x1F; |
| 1229 | int sG = (s >> ( 8+2))&0x3F; |
| 1230 | int sB = (s >> (16+3))&0x1F; |
| 1231 | int sA = (s>>24); |
| 1232 | int f1 = (sA + (sA>>7)); |
| 1233 | int f2 = 0x100-f1; |
| 1234 | int dR = (d>>11)&0x1f; |
| 1235 | int dG = (d>>5)&0x3f; |
| 1236 | int dB = (d)&0x1f; |
| 1237 | sR = (f1*sR + f2*dR)>>8; |
| 1238 | sG = (f1*sG + f2*dG)>>8; |
| 1239 | sB = (f1*sB + f2*dB)>>8; |
| 1240 | *dst = uint16_t((sR<<11)|(sG<<5)|sB); |
| 1241 | } |
| 1242 | }; |
| 1243 | |
| 1244 | /* Common init code the modulating blenders */ |
| 1245 | struct blender_modulate { |
| 1246 | void init(const context_t* c) { |
| 1247 | const int r = c->iterators.ydrdy >> (GGL_COLOR_BITS-8); |
| 1248 | const int g = c->iterators.ydgdy >> (GGL_COLOR_BITS-8); |
| 1249 | const int b = c->iterators.ydbdy >> (GGL_COLOR_BITS-8); |
| 1250 | const int a = c->iterators.ydady >> (GGL_COLOR_BITS-8); |
| 1251 | m_r = r + (r >> 7); |
| 1252 | m_g = g + (g >> 7); |
| 1253 | m_b = b + (b >> 7); |
| 1254 | m_a = a + (a >> 7); |
| 1255 | } |
| 1256 | protected: |
| 1257 | int m_r, m_g, m_b, m_a; |
| 1258 | }; |
| 1259 | |
| 1260 | /* This blender does a normal blend after modulation. |
| 1261 | */ |
| 1262 | struct blender_32to16_modulate : blender_modulate { |
| 1263 | blender_32to16_modulate(const context_t* c) { |
| 1264 | init(c); |
| 1265 | } |
| 1266 | void write(uint32_t s, uint16_t* dst) { |
| 1267 | // blend source and destination |
| 1268 | if (!s) { |
| 1269 | return; |
| 1270 | } |
| 1271 | s = GGL_RGBA_TO_HOST(s); |
| 1272 | |
| 1273 | /* We need to modulate s */ |
| 1274 | uint32_t sA = (s >> 24); |
| 1275 | uint32_t sB = (s >> 16) & 0xff; |
| 1276 | uint32_t sG = (s >> 8) & 0xff; |
| 1277 | uint32_t sR = s & 0xff; |
| 1278 | |
| 1279 | sA = (sA*m_a) >> 8; |
| 1280 | /* Keep R/G/B scaled to 5.8 or 6.8 fixed float format */ |
| 1281 | sR = (sR*m_r) >> (8 - 5); |
| 1282 | sG = (sG*m_g) >> (8 - 6); |
| 1283 | sB = (sB*m_b) >> (8 - 5); |
| 1284 | |
| 1285 | /* Now do a normal blend */ |
| 1286 | int f = 0x100 - (sA + (sA>>7)); |
| 1287 | uint16_t d = *dst; |
| 1288 | int dR = (d>>11)&0x1f; |
| 1289 | int dG = (d>>5)&0x3f; |
| 1290 | int dB = (d)&0x1f; |
| 1291 | sR = (sR + f*dR)>>8; |
| 1292 | sG = (sG + f*dG)>>8; |
| 1293 | sB = (sB + f*dB)>>8; |
| 1294 | *dst = uint16_t((sR<<11)|(sG<<5)|sB); |
| 1295 | } |
| 1296 | void write(uint32_t s, uint16_t* dst, ditherer& di) { |
| 1297 | // blend source and destination |
| 1298 | if (!s) { |
| 1299 | di.step(); |
| 1300 | return; |
| 1301 | } |
| 1302 | s = GGL_RGBA_TO_HOST(s); |
| 1303 | |
| 1304 | /* We need to modulate s */ |
| 1305 | uint32_t sA = (s >> 24); |
| 1306 | uint32_t sB = (s >> 16) & 0xff; |
| 1307 | uint32_t sG = (s >> 8) & 0xff; |
| 1308 | uint32_t sR = s & 0xff; |
| 1309 | |
| 1310 | sA = (sA*m_a) >> 8; |
| 1311 | /* keep R/G/B scaled to 5.8 or 6.8 fixed float format */ |
| 1312 | sR = (sR*m_r) >> (8 - 5); |
| 1313 | sG = (sG*m_g) >> (8 - 6); |
| 1314 | sB = (sB*m_b) >> (8 - 5); |
| 1315 | |
| 1316 | /* Scale threshold to 0.8 fixed float format */ |
| 1317 | int threshold = di.get_value() << (8 - GGL_DITHER_BITS); |
| 1318 | int f = 0x100 - (sA + (sA>>7)); |
| 1319 | uint16_t d = *dst; |
| 1320 | int dR = (d>>11)&0x1f; |
| 1321 | int dG = (d>>5)&0x3f; |
| 1322 | int dB = (d)&0x1f; |
| 1323 | sR = (sR + f*dR + threshold)>>8; |
| 1324 | sG = (sG + f*dG + threshold)>>8; |
| 1325 | sB = (sB + f*dB + threshold)>>8; |
| 1326 | if (sR > 0x1f) sR = 0x1f; |
| 1327 | if (sG > 0x3f) sG = 0x3f; |
| 1328 | if (sB > 0x1f) sB = 0x1f; |
| 1329 | *dst = uint16_t((sR<<11)|(sG<<5)|sB); |
| 1330 | } |
| 1331 | }; |
| 1332 | |
| 1333 | /* same as 32to16_modulate, except that the input is xRGB, instead of ARGB */ |
| 1334 | struct blender_x32to16_modulate : blender_modulate { |
| 1335 | blender_x32to16_modulate(const context_t* c) { |
| 1336 | init(c); |
| 1337 | } |
| 1338 | void write(uint32_t s, uint16_t* dst) { |
| 1339 | s = GGL_RGBA_TO_HOST(s); |
| 1340 | |
| 1341 | uint32_t sB = (s >> 16) & 0xff; |
| 1342 | uint32_t sG = (s >> 8) & 0xff; |
| 1343 | uint32_t sR = s & 0xff; |
| 1344 | |
| 1345 | /* Keep R/G/B in 5.8 or 6.8 format */ |
| 1346 | sR = (sR*m_r) >> (8 - 5); |
| 1347 | sG = (sG*m_g) >> (8 - 6); |
| 1348 | sB = (sB*m_b) >> (8 - 5); |
| 1349 | |
| 1350 | int f = 0x100 - m_a; |
| 1351 | uint16_t d = *dst; |
| 1352 | int dR = (d>>11)&0x1f; |
| 1353 | int dG = (d>>5)&0x3f; |
| 1354 | int dB = (d)&0x1f; |
| 1355 | sR = (sR + f*dR)>>8; |
| 1356 | sG = (sG + f*dG)>>8; |
| 1357 | sB = (sB + f*dB)>>8; |
| 1358 | *dst = uint16_t((sR<<11)|(sG<<5)|sB); |
| 1359 | } |
| 1360 | void write(uint32_t s, uint16_t* dst, ditherer& di) { |
| 1361 | s = GGL_RGBA_TO_HOST(s); |
| 1362 | |
| 1363 | uint32_t sB = (s >> 16) & 0xff; |
| 1364 | uint32_t sG = (s >> 8) & 0xff; |
| 1365 | uint32_t sR = s & 0xff; |
| 1366 | |
| 1367 | sR = (sR*m_r) >> (8 - 5); |
| 1368 | sG = (sG*m_g) >> (8 - 6); |
| 1369 | sB = (sB*m_b) >> (8 - 5); |
| 1370 | |
| 1371 | /* Now do a normal blend */ |
| 1372 | int threshold = di.get_value() << (8 - GGL_DITHER_BITS); |
| 1373 | int f = 0x100 - m_a; |
| 1374 | uint16_t d = *dst; |
| 1375 | int dR = (d>>11)&0x1f; |
| 1376 | int dG = (d>>5)&0x3f; |
| 1377 | int dB = (d)&0x1f; |
| 1378 | sR = (sR + f*dR + threshold)>>8; |
| 1379 | sG = (sG + f*dG + threshold)>>8; |
| 1380 | sB = (sB + f*dB + threshold)>>8; |
| 1381 | if (sR > 0x1f) sR = 0x1f; |
| 1382 | if (sG > 0x3f) sG = 0x3f; |
| 1383 | if (sB > 0x1f) sB = 0x1f; |
| 1384 | *dst = uint16_t((sR<<11)|(sG<<5)|sB); |
| 1385 | } |
| 1386 | }; |
| 1387 | |
| 1388 | /* Same as above, but source is 16bit rgb565 */ |
| 1389 | struct blender_16to16_modulate : blender_modulate { |
| 1390 | blender_16to16_modulate(const context_t* c) { |
| 1391 | init(c); |
| 1392 | } |
| 1393 | void write(uint16_t s16, uint16_t* dst) { |
| 1394 | uint32_t s = s16; |
| 1395 | |
| 1396 | uint32_t sR = s >> 11; |
| 1397 | uint32_t sG = (s >> 5) & 0x3f; |
| 1398 | uint32_t sB = s & 0x1f; |
| 1399 | |
| 1400 | sR = (sR*m_r); |
| 1401 | sG = (sG*m_g); |
| 1402 | sB = (sB*m_b); |
| 1403 | |
| 1404 | int f = 0x100 - m_a; |
| 1405 | uint16_t d = *dst; |
| 1406 | int dR = (d>>11)&0x1f; |
| 1407 | int dG = (d>>5)&0x3f; |
| 1408 | int dB = (d)&0x1f; |
| 1409 | sR = (sR + f*dR)>>8; |
| 1410 | sG = (sG + f*dG)>>8; |
| 1411 | sB = (sB + f*dB)>>8; |
| 1412 | *dst = uint16_t((sR<<11)|(sG<<5)|sB); |
| 1413 | } |
| 1414 | }; |
| 1415 | |
| 1416 | /* This is used to iterate over a 16-bit destination color buffer. |
| 1417 | * Usage is: |
| 1418 | * |
| 1419 | * dst_iterator16 di(context); |
| 1420 | * while (di.count--) { |
| 1421 | * <do stuff with dest pixel at di.dst> |
| 1422 | * di.dst++; |
| 1423 | * } |
| 1424 | */ |
| 1425 | struct dst_iterator16 { |
| 1426 | dst_iterator16(const context_t* c) { |
| 1427 | const int x = c->iterators.xl; |
| 1428 | const int width = c->iterators.xr - x; |
| 1429 | const int32_t y = c->iterators.y; |
| 1430 | const surface_t* cb = &(c->state.buffers.color); |
| 1431 | count = width; |
| 1432 | dst = reinterpret_cast<uint16_t*>(cb->data) + (x+(cb->stride*y)); |
| 1433 | } |
| 1434 | int count; |
| 1435 | uint16_t* dst; |
| 1436 | }; |
| 1437 | |
| 1438 | |
| 1439 | static void scanline_t32cb16_clamp(context_t* c) |
| 1440 | { |
| 1441 | dst_iterator16 di(c); |
| 1442 | |
| 1443 | if (is_context_horizontal(c)) { |
| 1444 | /* Special case for simple horizontal scaling */ |
| 1445 | horz_clamp_iterator32 ci(c); |
| 1446 | while (di.count--) { |
| 1447 | uint32_t s = ci.get_pixel32(); |
| 1448 | *di.dst++ = convertAbgr8888ToRgb565(s); |
| 1449 | } |
| 1450 | } else { |
| 1451 | /* General case */ |
| 1452 | clamp_iterator ci(c); |
| 1453 | while (di.count--) { |
| 1454 | uint32_t s = ci.get_pixel32(); |
| 1455 | *di.dst++ = convertAbgr8888ToRgb565(s); |
| 1456 | } |
| 1457 | } |
| 1458 | } |
| 1459 | |
| 1460 | static void scanline_t32cb16_dither(context_t* c) |
| 1461 | { |
| 1462 | horz_iterator32 si(c); |
| 1463 | dst_iterator16 di(c); |
| 1464 | ditherer dither(c); |
| 1465 | |
| 1466 | while (di.count--) { |
| 1467 | uint32_t s = si.get_pixel32(); |
| 1468 | *di.dst++ = dither.abgr8888ToRgb565(s); |
| 1469 | } |
| 1470 | } |
| 1471 | |
| 1472 | static void scanline_t32cb16_clamp_dither(context_t* c) |
| 1473 | { |
| 1474 | dst_iterator16 di(c); |
| 1475 | ditherer dither(c); |
| 1476 | |
| 1477 | if (is_context_horizontal(c)) { |
| 1478 | /* Special case for simple horizontal scaling */ |
| 1479 | horz_clamp_iterator32 ci(c); |
| 1480 | while (di.count--) { |
| 1481 | uint32_t s = ci.get_pixel32(); |
| 1482 | *di.dst++ = dither.abgr8888ToRgb565(s); |
| 1483 | } |
| 1484 | } else { |
| 1485 | /* General case */ |
| 1486 | clamp_iterator ci(c); |
| 1487 | while (di.count--) { |
| 1488 | uint32_t s = ci.get_pixel32(); |
| 1489 | *di.dst++ = dither.abgr8888ToRgb565(s); |
| 1490 | } |
| 1491 | } |
| 1492 | } |
| 1493 | |
| 1494 | static void scanline_t32cb16blend_dither(context_t* c) |
| 1495 | { |
| 1496 | dst_iterator16 di(c); |
| 1497 | ditherer dither(c); |
| 1498 | blender_32to16 bl(c); |
| 1499 | horz_iterator32 hi(c); |
| 1500 | while (di.count--) { |
| 1501 | uint32_t s = hi.get_pixel32(); |
| 1502 | bl.write(s, di.dst, dither); |
| 1503 | di.dst++; |
| 1504 | } |
| 1505 | } |
| 1506 | |
| 1507 | static void scanline_t32cb16blend_clamp(context_t* c) |
| 1508 | { |
| 1509 | dst_iterator16 di(c); |
| 1510 | blender_32to16 bl(c); |
| 1511 | |
| 1512 | if (is_context_horizontal(c)) { |
| 1513 | horz_clamp_iterator32 ci(c); |
| 1514 | while (di.count--) { |
| 1515 | uint32_t s = ci.get_pixel32(); |
| 1516 | bl.write(s, di.dst); |
| 1517 | di.dst++; |
| 1518 | } |
| 1519 | } else { |
| 1520 | clamp_iterator ci(c); |
| 1521 | while (di.count--) { |
| 1522 | uint32_t s = ci.get_pixel32(); |
| 1523 | bl.write(s, di.dst); |
| 1524 | di.dst++; |
| 1525 | } |
| 1526 | } |
| 1527 | } |
| 1528 | |
| 1529 | static void scanline_t32cb16blend_clamp_dither(context_t* c) |
| 1530 | { |
| 1531 | dst_iterator16 di(c); |
| 1532 | ditherer dither(c); |
| 1533 | blender_32to16 bl(c); |
| 1534 | |
| 1535 | clamp_iterator ci(c); |
| 1536 | while (di.count--) { |
| 1537 | uint32_t s = ci.get_pixel32(); |
| 1538 | bl.write(s, di.dst, dither); |
| 1539 | di.dst++; |
| 1540 | } |
| 1541 | } |
| 1542 | |
| 1543 | void scanline_t32cb16blend_clamp_mod(context_t* c) |
| 1544 | { |
| 1545 | dst_iterator16 di(c); |
| 1546 | blender_32to16_modulate bl(c); |
| 1547 | |
| 1548 | clamp_iterator ci(c); |
| 1549 | while (di.count--) { |
| 1550 | uint32_t s = ci.get_pixel32(); |
| 1551 | bl.write(s, di.dst); |
| 1552 | di.dst++; |
| 1553 | } |
| 1554 | } |
| 1555 | |
| 1556 | void scanline_t32cb16blend_clamp_mod_dither(context_t* c) |
| 1557 | { |
| 1558 | dst_iterator16 di(c); |
| 1559 | blender_32to16_modulate bl(c); |
| 1560 | ditherer dither(c); |
| 1561 | |
| 1562 | clamp_iterator ci(c); |
| 1563 | while (di.count--) { |
| 1564 | uint32_t s = ci.get_pixel32(); |
| 1565 | bl.write(s, di.dst, dither); |
| 1566 | di.dst++; |
| 1567 | } |
| 1568 | } |
| 1569 | |
| 1570 | /* Variant of scanline_t32cb16blend_clamp_mod with a xRGB texture */ |
| 1571 | void scanline_x32cb16blend_clamp_mod(context_t* c) |
| 1572 | { |
| 1573 | dst_iterator16 di(c); |
| 1574 | blender_x32to16_modulate bl(c); |
| 1575 | |
| 1576 | clamp_iterator ci(c); |
| 1577 | while (di.count--) { |
| 1578 | uint32_t s = ci.get_pixel32(); |
| 1579 | bl.write(s, di.dst); |
| 1580 | di.dst++; |
| 1581 | } |
| 1582 | } |
| 1583 | |
| 1584 | void scanline_x32cb16blend_clamp_mod_dither(context_t* c) |
| 1585 | { |
| 1586 | dst_iterator16 di(c); |
| 1587 | blender_x32to16_modulate bl(c); |
| 1588 | ditherer dither(c); |
| 1589 | |
| 1590 | clamp_iterator ci(c); |
| 1591 | while (di.count--) { |
| 1592 | uint32_t s = ci.get_pixel32(); |
| 1593 | bl.write(s, di.dst, dither); |
| 1594 | di.dst++; |
| 1595 | } |
| 1596 | } |
| 1597 | |
| 1598 | void scanline_t16cb16_clamp(context_t* c) |
| 1599 | { |
| 1600 | dst_iterator16 di(c); |
| 1601 | |
| 1602 | /* Special case for simple horizontal scaling */ |
| 1603 | if (is_context_horizontal(c)) { |
| 1604 | horz_clamp_iterator16 ci(c); |
| 1605 | while (di.count--) { |
| 1606 | *di.dst++ = ci.get_pixel16(); |
| 1607 | } |
| 1608 | } else { |
| 1609 | clamp_iterator ci(c); |
| 1610 | while (di.count--) { |
| 1611 | *di.dst++ = ci.get_pixel16(); |
| 1612 | } |
| 1613 | } |
| 1614 | } |
| 1615 | |
| 1616 | |
| 1617 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1618 | template <typename T, typename U> |
| 1619 | static inline __attribute__((const)) |
| 1620 | T interpolate(int y, T v0, U dvdx, U dvdy) { |
| 1621 | // interpolates in pixel's centers |
| 1622 | // v = v0 + (y + 0.5) * dvdy + (0.5 * dvdx) |
| 1623 | return (y * dvdy) + (v0 + ((dvdy + dvdx) >> 1)); |
| 1624 | } |
| 1625 | |
| 1626 | // ---------------------------------------------------------------------------- |
| 1627 | #if 0 |
| 1628 | #pragma mark - |
| 1629 | #endif |
| 1630 | |
| 1631 | void init_y(context_t* c, int32_t ys) |
| 1632 | { |
| 1633 | const uint32_t enables = c->state.enables; |
| 1634 | |
| 1635 | // compute iterators... |
| 1636 | iterators_t& ci = c->iterators; |
| 1637 | |
| 1638 | // sample in the center |
| 1639 | ci.y = ys; |
| 1640 | |
| 1641 | if (enables & (GGL_ENABLE_DEPTH_TEST|GGL_ENABLE_W|GGL_ENABLE_FOG)) { |
| 1642 | ci.ydzdy = interpolate(ys, c->shade.z0, c->shade.dzdx, c->shade.dzdy); |
| 1643 | ci.ydwdy = interpolate(ys, c->shade.w0, c->shade.dwdx, c->shade.dwdy); |
| 1644 | ci.ydfdy = interpolate(ys, c->shade.f0, c->shade.dfdx, c->shade.dfdy); |
| 1645 | } |
| 1646 | |
| 1647 | if (ggl_unlikely(enables & GGL_ENABLE_SMOOTH)) { |
| 1648 | ci.ydrdy = interpolate(ys, c->shade.r0, c->shade.drdx, c->shade.drdy); |
| 1649 | ci.ydgdy = interpolate(ys, c->shade.g0, c->shade.dgdx, c->shade.dgdy); |
| 1650 | ci.ydbdy = interpolate(ys, c->shade.b0, c->shade.dbdx, c->shade.dbdy); |
| 1651 | ci.ydady = interpolate(ys, c->shade.a0, c->shade.dadx, c->shade.dady); |
| 1652 | c->step_y = step_y__smooth; |
| 1653 | } else { |
| 1654 | ci.ydrdy = c->shade.r0; |
| 1655 | ci.ydgdy = c->shade.g0; |
| 1656 | ci.ydbdy = c->shade.b0; |
| 1657 | ci.ydady = c->shade.a0; |
| 1658 | // XXX: do only if needed, or make sure this is fast |
| 1659 | c->packed = ggl_pack_color(c, c->state.buffers.color.format, |
| 1660 | ci.ydrdy, ci.ydgdy, ci.ydbdy, ci.ydady); |
| 1661 | c->packed8888 = ggl_pack_color(c, GGL_PIXEL_FORMAT_RGBA_8888, |
| 1662 | ci.ydrdy, ci.ydgdy, ci.ydbdy, ci.ydady); |
| 1663 | } |
| 1664 | |
| 1665 | // initialize the variables we need in the shader |
| 1666 | generated_vars_t& gen = c->generated_vars; |
| 1667 | gen.argb[GGLFormat::ALPHA].c = ci.ydady; |
| 1668 | gen.argb[GGLFormat::ALPHA].dx = c->shade.dadx; |
| 1669 | gen.argb[GGLFormat::RED ].c = ci.ydrdy; |
| 1670 | gen.argb[GGLFormat::RED ].dx = c->shade.drdx; |
| 1671 | gen.argb[GGLFormat::GREEN].c = ci.ydgdy; |
| 1672 | gen.argb[GGLFormat::GREEN].dx = c->shade.dgdx; |
| 1673 | gen.argb[GGLFormat::BLUE ].c = ci.ydbdy; |
| 1674 | gen.argb[GGLFormat::BLUE ].dx = c->shade.dbdx; |
| 1675 | gen.dzdx = c->shade.dzdx; |
| 1676 | gen.f = ci.ydfdy; |
| 1677 | gen.dfdx = c->shade.dfdx; |
| 1678 | |
| 1679 | if (enables & GGL_ENABLE_TMUS) { |
| 1680 | for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) { |
| 1681 | texture_t& t = c->state.texture[i]; |
| 1682 | if (!t.enable) continue; |
| 1683 | |
| 1684 | texture_iterators_t& ti = t.iterators; |
| 1685 | if (t.s_coord == GGL_ONE_TO_ONE && t.t_coord == GGL_ONE_TO_ONE) { |
| 1686 | // we need to set all of these to 0 because in some cases |
| 1687 | // step_y__generic() or step_y__tmu() will be used and |
| 1688 | // therefore will update dtdy, however, in 1:1 mode |
| 1689 | // this is always done by the scanline rasterizer. |
| 1690 | ti.dsdx = ti.dsdy = ti.dtdx = ti.dtdy = 0; |
| 1691 | ti.ydsdy = t.shade.is0; |
| 1692 | ti.ydtdy = t.shade.it0; |
| 1693 | } else { |
| 1694 | const int adjustSWrap = ((t.s_wrap==GGL_CLAMP)?0:16); |
| 1695 | const int adjustTWrap = ((t.t_wrap==GGL_CLAMP)?0:16); |
| 1696 | ti.sscale = t.shade.sscale + adjustSWrap; |
| 1697 | ti.tscale = t.shade.tscale + adjustTWrap; |
| 1698 | if (!(enables & GGL_ENABLE_W)) { |
| 1699 | // S coordinate |
| 1700 | const int32_t sscale = ti.sscale; |
| 1701 | const int32_t sy = interpolate(ys, |
| 1702 | t.shade.is0, t.shade.idsdx, t.shade.idsdy); |
| 1703 | if (sscale>=0) { |
| 1704 | ti.ydsdy= sy << sscale; |
| 1705 | ti.dsdx = t.shade.idsdx << sscale; |
| 1706 | ti.dsdy = t.shade.idsdy << sscale; |
| 1707 | } else { |
| 1708 | ti.ydsdy= sy >> -sscale; |
| 1709 | ti.dsdx = t.shade.idsdx >> -sscale; |
| 1710 | ti.dsdy = t.shade.idsdy >> -sscale; |
| 1711 | } |
| 1712 | // T coordinate |
| 1713 | const int32_t tscale = ti.tscale; |
| 1714 | const int32_t ty = interpolate(ys, |
| 1715 | t.shade.it0, t.shade.idtdx, t.shade.idtdy); |
| 1716 | if (tscale>=0) { |
| 1717 | ti.ydtdy= ty << tscale; |
| 1718 | ti.dtdx = t.shade.idtdx << tscale; |
| 1719 | ti.dtdy = t.shade.idtdy << tscale; |
| 1720 | } else { |
| 1721 | ti.ydtdy= ty >> -tscale; |
| 1722 | ti.dtdx = t.shade.idtdx >> -tscale; |
| 1723 | ti.dtdy = t.shade.idtdy >> -tscale; |
| 1724 | } |
| 1725 | } |
| 1726 | } |
| 1727 | // mirror for generated code... |
| 1728 | generated_tex_vars_t& gen = c->generated_vars.texture[i]; |
| 1729 | gen.width = t.surface.width; |
| 1730 | gen.height = t.surface.height; |
| 1731 | gen.stride = t.surface.stride; |
Ashok Bhat | d10afb1 | 2013-11-14 11:13:41 +0000 | [diff] [blame] | 1732 | gen.data = uintptr_t(t.surface.data); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1733 | gen.dsdx = ti.dsdx; |
| 1734 | gen.dtdx = ti.dtdx; |
| 1735 | } |
| 1736 | } |
| 1737 | |
| 1738 | // choose the y-stepper |
| 1739 | c->step_y = step_y__nop; |
| 1740 | if (enables & GGL_ENABLE_FOG) { |
| 1741 | c->step_y = step_y__generic; |
| 1742 | } else if (enables & GGL_ENABLE_TMUS) { |
| 1743 | if (enables & GGL_ENABLE_SMOOTH) { |
| 1744 | c->step_y = step_y__generic; |
| 1745 | } else if (enables & GGL_ENABLE_W) { |
| 1746 | c->step_y = step_y__w; |
| 1747 | } else { |
| 1748 | c->step_y = step_y__tmu; |
| 1749 | } |
| 1750 | } else { |
| 1751 | if (enables & GGL_ENABLE_SMOOTH) { |
| 1752 | c->step_y = step_y__smooth; |
| 1753 | } |
| 1754 | } |
| 1755 | |
| 1756 | // choose the rectangle blitter |
| 1757 | c->rect = rect_generic; |
| 1758 | if ((c->step_y == step_y__nop) && |
| 1759 | (c->scanline == scanline_memcpy)) |
| 1760 | { |
| 1761 | c->rect = rect_memcpy; |
| 1762 | } |
| 1763 | } |
| 1764 | |
| 1765 | void init_y_packed(context_t* c, int32_t y0) |
| 1766 | { |
| 1767 | uint8_t f = c->state.buffers.color.format; |
| 1768 | c->packed = ggl_pack_color(c, f, |
| 1769 | c->shade.r0, c->shade.g0, c->shade.b0, c->shade.a0); |
Martyn Capewell | f9e8ab0 | 2009-12-07 15:00:19 +0000 | [diff] [blame] | 1770 | c->packed8888 = ggl_pack_color(c, GGL_PIXEL_FORMAT_RGBA_8888, |
| 1771 | c->shade.r0, c->shade.g0, c->shade.b0, c->shade.a0); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1772 | c->iterators.y = y0; |
| 1773 | c->step_y = step_y__nop; |
| 1774 | // choose the rectangle blitter |
| 1775 | c->rect = rect_generic; |
| 1776 | if (c->scanline == scanline_memcpy) { |
| 1777 | c->rect = rect_memcpy; |
| 1778 | } |
| 1779 | } |
| 1780 | |
| 1781 | void init_y_noop(context_t* c, int32_t y0) |
| 1782 | { |
| 1783 | c->iterators.y = y0; |
| 1784 | c->step_y = step_y__nop; |
| 1785 | // choose the rectangle blitter |
| 1786 | c->rect = rect_generic; |
| 1787 | if (c->scanline == scanline_memcpy) { |
| 1788 | c->rect = rect_memcpy; |
| 1789 | } |
| 1790 | } |
| 1791 | |
| 1792 | void init_y_error(context_t* c, int32_t y0) |
| 1793 | { |
| 1794 | // woooops, shoud never happen, |
| 1795 | // fail gracefully (don't display anything) |
| 1796 | init_y_noop(c, y0); |
Steve Block | 8aeb6e2 | 2012-01-06 14:13:42 +0000 | [diff] [blame] | 1797 | ALOGE("color-buffer has an invalid format!"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1798 | } |
| 1799 | |
| 1800 | // ---------------------------------------------------------------------------- |
| 1801 | #if 0 |
| 1802 | #pragma mark - |
| 1803 | #endif |
| 1804 | |
| 1805 | void step_y__generic(context_t* c) |
| 1806 | { |
| 1807 | const uint32_t enables = c->state.enables; |
| 1808 | |
| 1809 | // iterate... |
| 1810 | iterators_t& ci = c->iterators; |
| 1811 | ci.y += 1; |
| 1812 | |
| 1813 | if (enables & GGL_ENABLE_SMOOTH) { |
| 1814 | ci.ydrdy += c->shade.drdy; |
| 1815 | ci.ydgdy += c->shade.dgdy; |
| 1816 | ci.ydbdy += c->shade.dbdy; |
| 1817 | ci.ydady += c->shade.dady; |
| 1818 | } |
| 1819 | |
| 1820 | const uint32_t mask = |
| 1821 | GGL_ENABLE_DEPTH_TEST | |
| 1822 | GGL_ENABLE_W | |
| 1823 | GGL_ENABLE_FOG; |
| 1824 | if (enables & mask) { |
| 1825 | ci.ydzdy += c->shade.dzdy; |
| 1826 | ci.ydwdy += c->shade.dwdy; |
| 1827 | ci.ydfdy += c->shade.dfdy; |
| 1828 | } |
| 1829 | |
| 1830 | if ((enables & GGL_ENABLE_TMUS) && (!(enables & GGL_ENABLE_W))) { |
| 1831 | for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) { |
| 1832 | if (c->state.texture[i].enable) { |
| 1833 | texture_iterators_t& ti = c->state.texture[i].iterators; |
| 1834 | ti.ydsdy += ti.dsdy; |
| 1835 | ti.ydtdy += ti.dtdy; |
| 1836 | } |
| 1837 | } |
| 1838 | } |
| 1839 | } |
| 1840 | |
| 1841 | void step_y__nop(context_t* c) |
| 1842 | { |
| 1843 | c->iterators.y += 1; |
| 1844 | c->iterators.ydzdy += c->shade.dzdy; |
| 1845 | } |
| 1846 | |
| 1847 | void step_y__smooth(context_t* c) |
| 1848 | { |
| 1849 | iterators_t& ci = c->iterators; |
| 1850 | ci.y += 1; |
| 1851 | ci.ydrdy += c->shade.drdy; |
| 1852 | ci.ydgdy += c->shade.dgdy; |
| 1853 | ci.ydbdy += c->shade.dbdy; |
| 1854 | ci.ydady += c->shade.dady; |
| 1855 | ci.ydzdy += c->shade.dzdy; |
| 1856 | } |
| 1857 | |
| 1858 | void step_y__w(context_t* c) |
| 1859 | { |
| 1860 | iterators_t& ci = c->iterators; |
| 1861 | ci.y += 1; |
| 1862 | ci.ydzdy += c->shade.dzdy; |
| 1863 | ci.ydwdy += c->shade.dwdy; |
| 1864 | } |
| 1865 | |
| 1866 | void step_y__tmu(context_t* c) |
| 1867 | { |
| 1868 | iterators_t& ci = c->iterators; |
| 1869 | ci.y += 1; |
| 1870 | ci.ydzdy += c->shade.dzdy; |
| 1871 | for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) { |
| 1872 | if (c->state.texture[i].enable) { |
| 1873 | texture_iterators_t& ti = c->state.texture[i].iterators; |
| 1874 | ti.ydsdy += ti.dsdy; |
| 1875 | ti.ydtdy += ti.dtdy; |
| 1876 | } |
| 1877 | } |
| 1878 | } |
| 1879 | |
| 1880 | // ---------------------------------------------------------------------------- |
| 1881 | #if 0 |
| 1882 | #pragma mark - |
| 1883 | #endif |
| 1884 | |
| 1885 | void scanline_perspective(context_t* c) |
| 1886 | { |
| 1887 | struct { |
| 1888 | union { |
| 1889 | struct { |
| 1890 | int32_t s, sq; |
| 1891 | int32_t t, tq; |
synergy dev | cd2fe3b | 2013-11-06 16:30:06 -0800 | [diff] [blame] | 1892 | } sqtq; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1893 | struct { |
| 1894 | int32_t v, q; |
| 1895 | } st[2]; |
| 1896 | }; |
| 1897 | } tc[GGL_TEXTURE_UNIT_COUNT] __attribute__((aligned(16))); |
| 1898 | |
| 1899 | // XXX: we should have a special case when dwdx = 0 |
| 1900 | |
| 1901 | // 32 pixels spans works okay. 16 is a lot better, |
| 1902 | // but hey, it's a software renderer... |
| 1903 | const uint32_t SPAN_BITS = 5; |
| 1904 | const uint32_t ys = c->iterators.y; |
| 1905 | const uint32_t xs = c->iterators.xl; |
| 1906 | const uint32_t x1 = c->iterators.xr; |
| 1907 | const uint32_t xc = x1 - xs; |
| 1908 | uint32_t remainder = xc & ((1<<SPAN_BITS)-1); |
| 1909 | uint32_t numSpans = xc >> SPAN_BITS; |
| 1910 | |
| 1911 | const iterators_t& ci = c->iterators; |
| 1912 | int32_t w0 = (xs * c->shade.dwdx) + ci.ydwdy; |
| 1913 | int32_t q0 = gglRecipQ(w0, 30); |
| 1914 | const int iwscale = 32 - gglClz(q0); |
| 1915 | |
| 1916 | const int32_t dwdx = c->shade.dwdx << SPAN_BITS; |
| 1917 | int32_t xl = c->iterators.xl; |
| 1918 | |
| 1919 | // We process s & t with a loop to reduce the code size |
| 1920 | // (and i-cache pressure). |
| 1921 | |
| 1922 | for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) { |
| 1923 | const texture_t& tmu = c->state.texture[i]; |
| 1924 | if (!tmu.enable) continue; |
| 1925 | int32_t s = tmu.shade.is0 + |
| 1926 | (tmu.shade.idsdy * ys) + (tmu.shade.idsdx * xs) + |
| 1927 | ((tmu.shade.idsdx + tmu.shade.idsdy)>>1); |
| 1928 | int32_t t = tmu.shade.it0 + |
| 1929 | (tmu.shade.idtdy * ys) + (tmu.shade.idtdx * xs) + |
| 1930 | ((tmu.shade.idtdx + tmu.shade.idtdy)>>1); |
synergy dev | cd2fe3b | 2013-11-06 16:30:06 -0800 | [diff] [blame] | 1931 | tc[i].sqtq.s = s; |
| 1932 | tc[i].sqtq.t = t; |
| 1933 | tc[i].sqtq.sq = gglMulx(s, q0, iwscale); |
| 1934 | tc[i].sqtq.tq = gglMulx(t, q0, iwscale); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1935 | } |
| 1936 | |
| 1937 | int32_t span = 0; |
| 1938 | do { |
| 1939 | int32_t w1; |
| 1940 | if (ggl_likely(numSpans)) { |
| 1941 | w1 = w0 + dwdx; |
| 1942 | } else { |
| 1943 | if (remainder) { |
| 1944 | // finish off the scanline... |
| 1945 | span = remainder; |
| 1946 | w1 = (c->shade.dwdx * span) + w0; |
| 1947 | } else { |
| 1948 | break; |
| 1949 | } |
| 1950 | } |
| 1951 | int32_t q1 = gglRecipQ(w1, 30); |
| 1952 | for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) { |
| 1953 | texture_t& tmu = c->state.texture[i]; |
| 1954 | if (!tmu.enable) continue; |
| 1955 | texture_iterators_t& ti = tmu.iterators; |
| 1956 | |
| 1957 | for (int j=0 ; j<2 ; j++) { |
| 1958 | int32_t v = tc[i].st[j].v; |
| 1959 | if (span) v += (tmu.shade.st[j].dx)*span; |
| 1960 | else v += (tmu.shade.st[j].dx)<<SPAN_BITS; |
| 1961 | const int32_t v0 = tc[i].st[j].q; |
| 1962 | const int32_t v1 = gglMulx(v, q1, iwscale); |
| 1963 | int32_t dvdx = v1 - v0; |
| 1964 | if (span) dvdx /= span; |
| 1965 | else dvdx >>= SPAN_BITS; |
| 1966 | tc[i].st[j].v = v; |
| 1967 | tc[i].st[j].q = v1; |
| 1968 | |
| 1969 | const int scale = ti.st[j].scale + (iwscale - 30); |
| 1970 | if (scale >= 0) { |
| 1971 | ti.st[j].ydvdy = v0 << scale; |
| 1972 | ti.st[j].dvdx = dvdx << scale; |
| 1973 | } else { |
| 1974 | ti.st[j].ydvdy = v0 >> -scale; |
| 1975 | ti.st[j].dvdx = dvdx >> -scale; |
| 1976 | } |
| 1977 | } |
| 1978 | generated_tex_vars_t& gen = c->generated_vars.texture[i]; |
| 1979 | gen.dsdx = ti.st[0].dvdx; |
| 1980 | gen.dtdx = ti.st[1].dvdx; |
| 1981 | } |
| 1982 | c->iterators.xl = xl; |
| 1983 | c->iterators.xr = xl = xl + (span ? span : (1<<SPAN_BITS)); |
| 1984 | w0 = w1; |
| 1985 | q0 = q1; |
| 1986 | c->span(c); |
| 1987 | } while(numSpans--); |
| 1988 | } |
| 1989 | |
| 1990 | void scanline_perspective_single(context_t* c) |
| 1991 | { |
| 1992 | // 32 pixels spans works okay. 16 is a lot better, |
| 1993 | // but hey, it's a software renderer... |
| 1994 | const uint32_t SPAN_BITS = 5; |
| 1995 | const uint32_t ys = c->iterators.y; |
| 1996 | const uint32_t xs = c->iterators.xl; |
| 1997 | const uint32_t x1 = c->iterators.xr; |
| 1998 | const uint32_t xc = x1 - xs; |
| 1999 | |
| 2000 | const iterators_t& ci = c->iterators; |
| 2001 | int32_t w = (xs * c->shade.dwdx) + ci.ydwdy; |
| 2002 | int32_t iw = gglRecipQ(w, 30); |
| 2003 | const int iwscale = 32 - gglClz(iw); |
| 2004 | |
| 2005 | const int i = 31 - gglClz(c->state.enabled_tmu); |
| 2006 | generated_tex_vars_t& gen = c->generated_vars.texture[i]; |
| 2007 | texture_t& tmu = c->state.texture[i]; |
| 2008 | texture_iterators_t& ti = tmu.iterators; |
| 2009 | const int sscale = ti.sscale + (iwscale - 30); |
| 2010 | const int tscale = ti.tscale + (iwscale - 30); |
| 2011 | int32_t s = tmu.shade.is0 + |
| 2012 | (tmu.shade.idsdy * ys) + (tmu.shade.idsdx * xs) + |
| 2013 | ((tmu.shade.idsdx + tmu.shade.idsdy)>>1); |
| 2014 | int32_t t = tmu.shade.it0 + |
| 2015 | (tmu.shade.idtdy * ys) + (tmu.shade.idtdx * xs) + |
| 2016 | ((tmu.shade.idtdx + tmu.shade.idtdy)>>1); |
| 2017 | int32_t s0 = gglMulx(s, iw, iwscale); |
| 2018 | int32_t t0 = gglMulx(t, iw, iwscale); |
| 2019 | int32_t xl = c->iterators.xl; |
| 2020 | |
| 2021 | int32_t sq, tq, dsdx, dtdx; |
| 2022 | int32_t premainder = xc & ((1<<SPAN_BITS)-1); |
| 2023 | uint32_t numSpans = xc >> SPAN_BITS; |
| 2024 | if (c->shade.dwdx == 0) { |
| 2025 | // XXX: we could choose to do this if the error is small enough |
| 2026 | numSpans = 0; |
| 2027 | premainder = xc; |
| 2028 | goto no_perspective; |
| 2029 | } |
| 2030 | |
| 2031 | if (premainder) { |
| 2032 | w += c->shade.dwdx * premainder; |
| 2033 | iw = gglRecipQ(w, 30); |
| 2034 | no_perspective: |
| 2035 | s += tmu.shade.idsdx * premainder; |
| 2036 | t += tmu.shade.idtdx * premainder; |
| 2037 | sq = gglMulx(s, iw, iwscale); |
| 2038 | tq = gglMulx(t, iw, iwscale); |
| 2039 | dsdx = (sq - s0) / premainder; |
| 2040 | dtdx = (tq - t0) / premainder; |
| 2041 | c->iterators.xl = xl; |
| 2042 | c->iterators.xr = xl = xl + premainder; |
| 2043 | goto finish; |
| 2044 | } |
| 2045 | |
| 2046 | while (numSpans--) { |
| 2047 | w += c->shade.dwdx << SPAN_BITS; |
| 2048 | s += tmu.shade.idsdx << SPAN_BITS; |
| 2049 | t += tmu.shade.idtdx << SPAN_BITS; |
| 2050 | iw = gglRecipQ(w, 30); |
| 2051 | sq = gglMulx(s, iw, iwscale); |
| 2052 | tq = gglMulx(t, iw, iwscale); |
| 2053 | dsdx = (sq - s0) >> SPAN_BITS; |
| 2054 | dtdx = (tq - t0) >> SPAN_BITS; |
| 2055 | c->iterators.xl = xl; |
| 2056 | c->iterators.xr = xl = xl + (1<<SPAN_BITS); |
| 2057 | finish: |
| 2058 | if (sscale >= 0) { |
| 2059 | ti.ydsdy = s0 << sscale; |
| 2060 | ti.dsdx = dsdx << sscale; |
| 2061 | } else { |
| 2062 | ti.ydsdy = s0 >>-sscale; |
| 2063 | ti.dsdx = dsdx >>-sscale; |
| 2064 | } |
| 2065 | if (tscale >= 0) { |
| 2066 | ti.ydtdy = t0 << tscale; |
| 2067 | ti.dtdx = dtdx << tscale; |
| 2068 | } else { |
| 2069 | ti.ydtdy = t0 >>-tscale; |
| 2070 | ti.dtdx = dtdx >>-tscale; |
| 2071 | } |
| 2072 | s0 = sq; |
| 2073 | t0 = tq; |
| 2074 | gen.dsdx = ti.dsdx; |
| 2075 | gen.dtdx = ti.dtdx; |
| 2076 | c->span(c); |
| 2077 | } |
| 2078 | } |
| 2079 | |
| 2080 | // ---------------------------------------------------------------------------- |
| 2081 | |
Martyn Capewell | f9e8ab0 | 2009-12-07 15:00:19 +0000 | [diff] [blame] | 2082 | void scanline_col32cb16blend(context_t* c) |
| 2083 | { |
| 2084 | int32_t x = c->iterators.xl; |
| 2085 | size_t ct = c->iterators.xr - x; |
| 2086 | int32_t y = c->iterators.y; |
| 2087 | surface_t* cb = &(c->state.buffers.color); |
| 2088 | union { |
| 2089 | uint16_t* dst; |
| 2090 | uint32_t* dst32; |
| 2091 | }; |
| 2092 | dst = reinterpret_cast<uint16_t*>(cb->data) + (x+(cb->stride*y)); |
| 2093 | |
| 2094 | #if ((ANDROID_CODEGEN >= ANDROID_CODEGEN_ASM) && defined(__arm__)) |
| 2095 | #if defined(__ARM_HAVE_NEON) && BYTE_ORDER == LITTLE_ENDIAN |
| 2096 | scanline_col32cb16blend_neon(dst, &(c->packed8888), ct); |
| 2097 | #else // defined(__ARM_HAVE_NEON) && BYTE_ORDER == LITTLE_ENDIAN |
| 2098 | scanline_col32cb16blend_arm(dst, GGL_RGBA_TO_HOST(c->packed8888), ct); |
| 2099 | #endif // defined(__ARM_HAVE_NEON) && BYTE_ORDER == LITTLE_ENDIAN |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 2100 | #elif ((ANDROID_CODEGEN >= ANDROID_CODEGEN_ASM) && defined(__aarch64__)) |
Colin Cross | d4146e6 | 2014-01-21 20:12:28 -0800 | [diff] [blame] | 2101 | scanline_col32cb16blend_arm64(dst, GGL_RGBA_TO_HOST(c->packed8888), ct); |
Martyn Capewell | f9e8ab0 | 2009-12-07 15:00:19 +0000 | [diff] [blame] | 2102 | #else |
| 2103 | uint32_t s = GGL_RGBA_TO_HOST(c->packed8888); |
| 2104 | int sA = (s>>24); |
| 2105 | int f = 0x100 - (sA + (sA>>7)); |
| 2106 | while (ct--) { |
| 2107 | uint16_t d = *dst; |
| 2108 | int dR = (d>>11)&0x1f; |
| 2109 | int dG = (d>>5)&0x3f; |
| 2110 | int dB = (d)&0x1f; |
| 2111 | int sR = (s >> ( 3))&0x1F; |
| 2112 | int sG = (s >> ( 8+2))&0x3F; |
| 2113 | int sB = (s >> (16+3))&0x1F; |
| 2114 | sR += (f*dR)>>8; |
| 2115 | sG += (f*dG)>>8; |
| 2116 | sB += (f*dB)>>8; |
| 2117 | *dst++ = uint16_t((sR<<11)|(sG<<5)|sB); |
| 2118 | } |
| 2119 | #endif |
| 2120 | |
| 2121 | } |
| 2122 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2123 | void scanline_t32cb16(context_t* c) |
| 2124 | { |
| 2125 | int32_t x = c->iterators.xl; |
| 2126 | size_t ct = c->iterators.xr - x; |
| 2127 | int32_t y = c->iterators.y; |
| 2128 | surface_t* cb = &(c->state.buffers.color); |
| 2129 | union { |
| 2130 | uint16_t* dst; |
| 2131 | uint32_t* dst32; |
| 2132 | }; |
| 2133 | dst = reinterpret_cast<uint16_t*>(cb->data) + (x+(cb->stride*y)); |
| 2134 | |
| 2135 | surface_t* tex = &(c->state.texture[0].surface); |
| 2136 | const int32_t u = (c->state.texture[0].shade.is0>>16) + x; |
| 2137 | const int32_t v = (c->state.texture[0].shade.it0>>16) + y; |
| 2138 | uint32_t *src = reinterpret_cast<uint32_t*>(tex->data)+(u+(tex->stride*v)); |
| 2139 | int sR, sG, sB; |
| 2140 | uint32_t s, d; |
| 2141 | |
Ashok Bhat | d10afb1 | 2013-11-14 11:13:41 +0000 | [diff] [blame] | 2142 | if (ct==1 || uintptr_t(dst)&2) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2143 | last_one: |
| 2144 | s = GGL_RGBA_TO_HOST( *src++ ); |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 2145 | *dst++ = convertAbgr8888ToRgb565(s); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2146 | ct--; |
| 2147 | } |
| 2148 | |
| 2149 | while (ct >= 2) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2150 | #if BYTE_ORDER == BIG_ENDIAN |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 2151 | s = GGL_RGBA_TO_HOST( *src++ ); |
| 2152 | d = convertAbgr8888ToRgb565_hi16(s); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2153 | |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 2154 | s = GGL_RGBA_TO_HOST( *src++ ); |
| 2155 | d |= convertAbgr8888ToRgb565(s); |
| 2156 | #else |
| 2157 | s = GGL_RGBA_TO_HOST( *src++ ); |
| 2158 | d = convertAbgr8888ToRgb565(s); |
| 2159 | |
| 2160 | s = GGL_RGBA_TO_HOST( *src++ ); |
| 2161 | d |= convertAbgr8888ToRgb565(s) << 16; |
| 2162 | #endif |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2163 | *dst32++ = d; |
| 2164 | ct -= 2; |
| 2165 | } |
| 2166 | |
| 2167 | if (ct > 0) { |
| 2168 | goto last_one; |
| 2169 | } |
| 2170 | } |
| 2171 | |
| 2172 | void scanline_t32cb16blend(context_t* c) |
| 2173 | { |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 2174 | #if ((ANDROID_CODEGEN >= ANDROID_CODEGEN_ASM) && (defined(__arm__) || defined(__mips__) || defined(__aarch64__))) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2175 | int32_t x = c->iterators.xl; |
| 2176 | size_t ct = c->iterators.xr - x; |
| 2177 | int32_t y = c->iterators.y; |
| 2178 | surface_t* cb = &(c->state.buffers.color); |
| 2179 | uint16_t* dst = reinterpret_cast<uint16_t*>(cb->data) + (x+(cb->stride*y)); |
| 2180 | |
| 2181 | surface_t* tex = &(c->state.texture[0].surface); |
| 2182 | const int32_t u = (c->state.texture[0].shade.is0>>16) + x; |
| 2183 | const int32_t v = (c->state.texture[0].shade.it0>>16) + y; |
| 2184 | uint32_t *src = reinterpret_cast<uint32_t*>(tex->data)+(u+(tex->stride*v)); |
| 2185 | |
Duane Sand | 068f9f3 | 2012-05-24 22:09:24 -0700 | [diff] [blame] | 2186 | #ifdef __arm__ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2187 | scanline_t32cb16blend_arm(dst, src, ct); |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 2188 | #elif defined(__aarch64__) |
Colin Cross | d4146e6 | 2014-01-21 20:12:28 -0800 | [diff] [blame] | 2189 | scanline_t32cb16blend_arm64(dst, src, ct); |
Ashok Bhat | 658f89d | 2013-02-28 18:32:03 +0000 | [diff] [blame] | 2190 | #elif defined(__mips__) |
Duane Sand | 068f9f3 | 2012-05-24 22:09:24 -0700 | [diff] [blame] | 2191 | scanline_t32cb16blend_mips(dst, src, ct); |
| 2192 | #endif |
| 2193 | #else |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 2194 | dst_iterator16 di(c); |
| 2195 | horz_iterator32 hi(c); |
| 2196 | blender_32to16 bl(c); |
| 2197 | while (di.count--) { |
| 2198 | uint32_t s = hi.get_pixel32(); |
| 2199 | bl.write(s, di.dst); |
| 2200 | di.dst++; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2201 | } |
| 2202 | #endif |
| 2203 | } |
| 2204 | |
David 'Digit' Turner | 39764f4 | 2011-04-15 20:12:07 +0200 | [diff] [blame] | 2205 | void scanline_t32cb16blend_srca(context_t* c) |
| 2206 | { |
| 2207 | dst_iterator16 di(c); |
| 2208 | horz_iterator32 hi(c); |
| 2209 | blender_32to16_srcA blender(c); |
| 2210 | |
| 2211 | while (di.count--) { |
| 2212 | uint32_t s = hi.get_pixel32(); |
| 2213 | blender.write(s,di.dst); |
| 2214 | di.dst++; |
| 2215 | } |
| 2216 | } |
| 2217 | |
| 2218 | void scanline_t16cb16blend_clamp_mod(context_t* c) |
| 2219 | { |
| 2220 | const int a = c->iterators.ydady >> (GGL_COLOR_BITS-8); |
| 2221 | if (a == 0) { |
| 2222 | return; |
| 2223 | } |
| 2224 | |
| 2225 | if (a == 255) { |
| 2226 | scanline_t16cb16_clamp(c); |
| 2227 | return; |
| 2228 | } |
| 2229 | |
| 2230 | dst_iterator16 di(c); |
| 2231 | blender_16to16_modulate blender(c); |
| 2232 | clamp_iterator ci(c); |
| 2233 | |
| 2234 | while (di.count--) { |
| 2235 | uint16_t s = ci.get_pixel16(); |
| 2236 | blender.write(s, di.dst); |
| 2237 | di.dst++; |
| 2238 | } |
| 2239 | } |
| 2240 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 2241 | void scanline_memcpy(context_t* c) |
| 2242 | { |
| 2243 | int32_t x = c->iterators.xl; |
| 2244 | size_t ct = c->iterators.xr - x; |
| 2245 | int32_t y = c->iterators.y; |
| 2246 | surface_t* cb = &(c->state.buffers.color); |
| 2247 | const GGLFormat* fp = &(c->formats[cb->format]); |
| 2248 | uint8_t* dst = reinterpret_cast<uint8_t*>(cb->data) + |
| 2249 | (x + (cb->stride * y)) * fp->size; |
| 2250 | |
| 2251 | surface_t* tex = &(c->state.texture[0].surface); |
| 2252 | const int32_t u = (c->state.texture[0].shade.is0>>16) + x; |
| 2253 | const int32_t v = (c->state.texture[0].shade.it0>>16) + y; |
| 2254 | uint8_t *src = reinterpret_cast<uint8_t*>(tex->data) + |
| 2255 | (u + (tex->stride * v)) * fp->size; |
| 2256 | |
| 2257 | const size_t size = ct * fp->size; |
| 2258 | memcpy(dst, src, size); |
| 2259 | } |
| 2260 | |
| 2261 | void scanline_memset8(context_t* c) |
| 2262 | { |
| 2263 | int32_t x = c->iterators.xl; |
| 2264 | size_t ct = c->iterators.xr - x; |
| 2265 | int32_t y = c->iterators.y; |
| 2266 | surface_t* cb = &(c->state.buffers.color); |
| 2267 | uint8_t* dst = reinterpret_cast<uint8_t*>(cb->data) + (x+(cb->stride*y)); |
| 2268 | uint32_t packed = c->packed; |
| 2269 | memset(dst, packed, ct); |
| 2270 | } |
| 2271 | |
| 2272 | void scanline_memset16(context_t* c) |
| 2273 | { |
| 2274 | int32_t x = c->iterators.xl; |
| 2275 | size_t ct = c->iterators.xr - x; |
| 2276 | int32_t y = c->iterators.y; |
| 2277 | surface_t* cb = &(c->state.buffers.color); |
| 2278 | uint16_t* dst = reinterpret_cast<uint16_t*>(cb->data) + (x+(cb->stride*y)); |
| 2279 | uint32_t packed = c->packed; |
| 2280 | android_memset16(dst, packed, ct*2); |
| 2281 | } |
| 2282 | |
| 2283 | void scanline_memset32(context_t* c) |
| 2284 | { |
| 2285 | int32_t x = c->iterators.xl; |
| 2286 | size_t ct = c->iterators.xr - x; |
| 2287 | int32_t y = c->iterators.y; |
| 2288 | surface_t* cb = &(c->state.buffers.color); |
| 2289 | uint32_t* dst = reinterpret_cast<uint32_t*>(cb->data) + (x+(cb->stride*y)); |
| 2290 | uint32_t packed = GGL_HOST_TO_RGBA(c->packed); |
| 2291 | android_memset32(dst, packed, ct*4); |
| 2292 | } |
| 2293 | |
| 2294 | void scanline_clear(context_t* c) |
| 2295 | { |
| 2296 | int32_t x = c->iterators.xl; |
| 2297 | size_t ct = c->iterators.xr - x; |
| 2298 | int32_t y = c->iterators.y; |
| 2299 | surface_t* cb = &(c->state.buffers.color); |
| 2300 | const GGLFormat* fp = &(c->formats[cb->format]); |
| 2301 | uint8_t* dst = reinterpret_cast<uint8_t*>(cb->data) + |
| 2302 | (x + (cb->stride * y)) * fp->size; |
| 2303 | const size_t size = ct * fp->size; |
| 2304 | memset(dst, 0, size); |
| 2305 | } |
| 2306 | |
| 2307 | void scanline_set(context_t* c) |
| 2308 | { |
| 2309 | int32_t x = c->iterators.xl; |
| 2310 | size_t ct = c->iterators.xr - x; |
| 2311 | int32_t y = c->iterators.y; |
| 2312 | surface_t* cb = &(c->state.buffers.color); |
| 2313 | const GGLFormat* fp = &(c->formats[cb->format]); |
| 2314 | uint8_t* dst = reinterpret_cast<uint8_t*>(cb->data) + |
| 2315 | (x + (cb->stride * y)) * fp->size; |
| 2316 | const size_t size = ct * fp->size; |
| 2317 | memset(dst, 0xFF, size); |
| 2318 | } |
| 2319 | |
| 2320 | void scanline_noop(context_t* c) |
| 2321 | { |
| 2322 | } |
| 2323 | |
| 2324 | void rect_generic(context_t* c, size_t yc) |
| 2325 | { |
| 2326 | do { |
| 2327 | c->scanline(c); |
| 2328 | c->step_y(c); |
| 2329 | } while (--yc); |
| 2330 | } |
| 2331 | |
| 2332 | void rect_memcpy(context_t* c, size_t yc) |
| 2333 | { |
| 2334 | int32_t x = c->iterators.xl; |
| 2335 | size_t ct = c->iterators.xr - x; |
| 2336 | int32_t y = c->iterators.y; |
| 2337 | surface_t* cb = &(c->state.buffers.color); |
| 2338 | const GGLFormat* fp = &(c->formats[cb->format]); |
| 2339 | uint8_t* dst = reinterpret_cast<uint8_t*>(cb->data) + |
| 2340 | (x + (cb->stride * y)) * fp->size; |
| 2341 | |
| 2342 | surface_t* tex = &(c->state.texture[0].surface); |
| 2343 | const int32_t u = (c->state.texture[0].shade.is0>>16) + x; |
| 2344 | const int32_t v = (c->state.texture[0].shade.it0>>16) + y; |
| 2345 | uint8_t *src = reinterpret_cast<uint8_t*>(tex->data) + |
| 2346 | (u + (tex->stride * v)) * fp->size; |
| 2347 | |
| 2348 | if (cb->stride == tex->stride && ct == size_t(cb->stride)) { |
| 2349 | memcpy(dst, src, ct * fp->size * yc); |
| 2350 | } else { |
| 2351 | const size_t size = ct * fp->size; |
| 2352 | const size_t dbpr = cb->stride * fp->size; |
| 2353 | const size_t sbpr = tex->stride * fp->size; |
| 2354 | do { |
| 2355 | memcpy(dst, src, size); |
| 2356 | dst += dbpr; |
| 2357 | src += sbpr; |
| 2358 | } while (--yc); |
| 2359 | } |
| 2360 | } |
| 2361 | // ---------------------------------------------------------------------------- |
| 2362 | }; // namespace android |
| 2363 | |