1 /*
2 * Copyright 2011 The LibYuv Project Authors. All rights reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "libyuv/convert_argb.h"
12
13 #include "libyuv/cpu_id.h"
14 #ifdef HAVE_JPEG
15 #include "libyuv/mjpeg_decoder.h"
16 #endif
17 #include "libyuv/rotate_argb.h"
18 #include "libyuv/row.h"
19 #include "libyuv/video_common.h"
20
21 #ifdef __cplusplus
22 namespace libyuv {
23 extern "C" {
24 #endif
25
26 // Convert camera sample to ARGB with cropping, rotation and vertical flip.
27 // src_width is used for source stride computation
28 // src_height is used to compute location of planes, and indicate inversion
29 // sample_size is measured in bytes and is the size of the frame.
30 // With MJPEG it is the compressed size of the frame.
31
32 // TODO(fbarchard): Add the following:
33 // H010ToARGB
34 // I010ToARGB
35 // J400ToARGB
36 // J422ToARGB
37 // J444ToARGB
38
39 LIBYUV_API
ConvertToARGB(const uint8_t * sample,size_t sample_size,uint8_t * dst_argb,int dst_stride_argb,int crop_x,int crop_y,int src_width,int src_height,int crop_width,int crop_height,enum RotationMode rotation,uint32_t fourcc)40 int ConvertToARGB(const uint8_t* sample,
41 size_t sample_size,
42 uint8_t* dst_argb,
43 int dst_stride_argb,
44 int crop_x,
45 int crop_y,
46 int src_width,
47 int src_height,
48 int crop_width,
49 int crop_height,
50 enum RotationMode rotation,
51 uint32_t fourcc) {
52 uint32_t format = CanonicalFourCC(fourcc);
53 int aligned_src_width = (src_width + 1) & ~1;
54 const uint8_t* src;
55 const uint8_t* src_uv;
56 int abs_src_height = (src_height < 0) ? -src_height : src_height;
57 int inv_crop_height = (crop_height < 0) ? -crop_height : crop_height;
58 int r = 0;
59
60 // One pass rotation is available for some formats. For the rest, convert
61 // to ARGB (with optional vertical flipping) into a temporary ARGB buffer,
62 // and then rotate the ARGB to the final destination buffer.
63 // For in-place conversion, if destination dst_argb is same as source sample,
64 // also enable temporary buffer.
65 LIBYUV_BOOL need_buf =
66 (rotation && format != FOURCC_ARGB) || dst_argb == sample;
67 uint8_t* dest_argb = dst_argb;
68 int dest_dst_stride_argb = dst_stride_argb;
69 uint8_t* rotate_buffer = NULL;
70 int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height;
71
72 if (dst_argb == NULL || sample == NULL || src_width <= 0 || crop_width <= 0 ||
73 src_height == 0 || crop_height == 0) {
74 return -1;
75 }
76 if (src_height < 0) {
77 inv_crop_height = -inv_crop_height;
78 }
79
80 if (need_buf) {
81 int argb_size = crop_width * 4 * abs_crop_height;
82 rotate_buffer = (uint8_t*)malloc(argb_size); /* NOLINT */
83 if (!rotate_buffer) {
84 return 1; // Out of memory runtime error.
85 }
86 dst_argb = rotate_buffer;
87 dst_stride_argb = crop_width * 4;
88 }
89
90 switch (format) {
91 // Single plane formats
92 case FOURCC_YUY2:
93 src = sample + (aligned_src_width * crop_y + crop_x) * 2;
94 r = YUY2ToARGB(src, aligned_src_width * 2, dst_argb, dst_stride_argb,
95 crop_width, inv_crop_height);
96 break;
97 case FOURCC_UYVY:
98 src = sample + (aligned_src_width * crop_y + crop_x) * 2;
99 r = UYVYToARGB(src, aligned_src_width * 2, dst_argb, dst_stride_argb,
100 crop_width, inv_crop_height);
101 break;
102 case FOURCC_24BG:
103 src = sample + (src_width * crop_y + crop_x) * 3;
104 r = RGB24ToARGB(src, src_width * 3, dst_argb, dst_stride_argb, crop_width,
105 inv_crop_height);
106 break;
107 case FOURCC_RAW:
108 src = sample + (src_width * crop_y + crop_x) * 3;
109 r = RAWToARGB(src, src_width * 3, dst_argb, dst_stride_argb, crop_width,
110 inv_crop_height);
111 break;
112 case FOURCC_ARGB:
113 if (!need_buf && !rotation) {
114 src = sample + (src_width * crop_y + crop_x) * 4;
115 r = ARGBToARGB(src, src_width * 4, dst_argb, dst_stride_argb,
116 crop_width, inv_crop_height);
117 }
118 break;
119 case FOURCC_BGRA:
120 src = sample + (src_width * crop_y + crop_x) * 4;
121 r = BGRAToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
122 inv_crop_height);
123 break;
124 case FOURCC_ABGR:
125 src = sample + (src_width * crop_y + crop_x) * 4;
126 r = ABGRToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
127 inv_crop_height);
128 break;
129 case FOURCC_RGBA:
130 src = sample + (src_width * crop_y + crop_x) * 4;
131 r = RGBAToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
132 inv_crop_height);
133 break;
134 case FOURCC_AR30:
135 src = sample + (src_width * crop_y + crop_x) * 4;
136 r = AR30ToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
137 inv_crop_height);
138 break;
139 case FOURCC_AB30:
140 src = sample + (src_width * crop_y + crop_x) * 4;
141 r = AB30ToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
142 inv_crop_height);
143 break;
144 case FOURCC_RGBP:
145 src = sample + (src_width * crop_y + crop_x) * 2;
146 r = RGB565ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
147 crop_width, inv_crop_height);
148 break;
149 case FOURCC_RGBO:
150 src = sample + (src_width * crop_y + crop_x) * 2;
151 r = ARGB1555ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
152 crop_width, inv_crop_height);
153 break;
154 case FOURCC_R444:
155 src = sample + (src_width * crop_y + crop_x) * 2;
156 r = ARGB4444ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
157 crop_width, inv_crop_height);
158 break;
159 case FOURCC_I400:
160 src = sample + src_width * crop_y + crop_x;
161 r = I400ToARGB(src, src_width, dst_argb, dst_stride_argb, crop_width,
162 inv_crop_height);
163 break;
164
165 // Biplanar formats
166 case FOURCC_NV12:
167 src = sample + (src_width * crop_y + crop_x);
168 src_uv =
169 sample + aligned_src_width * (abs_src_height + crop_y / 2) + crop_x;
170 r = NV12ToARGB(src, src_width, src_uv, aligned_src_width, dst_argb,
171 dst_stride_argb, crop_width, inv_crop_height);
172 break;
173 case FOURCC_NV21:
174 src = sample + (src_width * crop_y + crop_x);
175 src_uv =
176 sample + aligned_src_width * (abs_src_height + crop_y / 2) + crop_x;
177 // Call NV12 but with u and v parameters swapped.
178 r = NV21ToARGB(src, src_width, src_uv, aligned_src_width, dst_argb,
179 dst_stride_argb, crop_width, inv_crop_height);
180 break;
181 case FOURCC_M420:
182 src = sample + (src_width * crop_y) * 12 / 8 + crop_x;
183 r = M420ToARGB(src, src_width, dst_argb, dst_stride_argb, crop_width,
184 inv_crop_height);
185 break;
186
187 // Triplanar formats
188 case FOURCC_I420:
189 case FOURCC_YV12: {
190 const uint8_t* src_y = sample + (src_width * crop_y + crop_x);
191 const uint8_t* src_u;
192 const uint8_t* src_v;
193 int halfwidth = (src_width + 1) / 2;
194 int halfheight = (abs_src_height + 1) / 2;
195 if (format == FOURCC_YV12) {
196 src_v = sample + src_width * abs_src_height +
197 (halfwidth * crop_y + crop_x) / 2;
198 src_u = sample + src_width * abs_src_height +
199 halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
200 } else {
201 src_u = sample + src_width * abs_src_height +
202 (halfwidth * crop_y + crop_x) / 2;
203 src_v = sample + src_width * abs_src_height +
204 halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
205 }
206 r = I420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
207 dst_argb, dst_stride_argb, crop_width, inv_crop_height);
208 break;
209 }
210
211 case FOURCC_H420: {
212 int halfwidth = (src_width + 1) / 2;
213 int halfheight = (abs_src_height + 1) / 2;
214 const uint8_t* src_y = sample + (src_width * crop_y + crop_x);
215 const uint8_t* src_u = sample + src_width * abs_src_height +
216 (halfwidth * crop_y + crop_x) / 2;
217 const uint8_t* src_v = sample + src_width * abs_src_height +
218 halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
219 r = H420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
220 dst_argb, dst_stride_argb, crop_width, inv_crop_height);
221 break;
222 }
223
224 case FOURCC_J420: {
225 int halfwidth = (src_width + 1) / 2;
226 int halfheight = (abs_src_height + 1) / 2;
227 const uint8_t* src_y = sample + (src_width * crop_y + crop_x);
228 const uint8_t* src_u = sample + src_width * abs_src_height +
229 (halfwidth * crop_y + crop_x) / 2;
230 const uint8_t* src_v = sample + src_width * abs_src_height +
231 halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
232 r = J420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
233 dst_argb, dst_stride_argb, crop_width, inv_crop_height);
234 break;
235 }
236
237 case FOURCC_I422:
238 case FOURCC_YV16: {
239 int halfwidth = (src_width + 1) / 2;
240 const uint8_t* src_y = sample + src_width * crop_y + crop_x;
241 const uint8_t* src_u;
242 const uint8_t* src_v;
243 if (format == FOURCC_YV16) {
244 src_v = sample + src_width * abs_src_height + halfwidth * crop_y +
245 crop_x / 2;
246 src_u = sample + src_width * abs_src_height +
247 halfwidth * (abs_src_height + crop_y) + crop_x / 2;
248 } else {
249 src_u = sample + src_width * abs_src_height + halfwidth * crop_y +
250 crop_x / 2;
251 src_v = sample + src_width * abs_src_height +
252 halfwidth * (abs_src_height + crop_y) + crop_x / 2;
253 }
254 r = I422ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
255 dst_argb, dst_stride_argb, crop_width, inv_crop_height);
256 break;
257 }
258
259 case FOURCC_H422: {
260 int halfwidth = (src_width + 1) / 2;
261 const uint8_t* src_y = sample + src_width * crop_y + crop_x;
262 const uint8_t* src_u =
263 sample + src_width * abs_src_height + halfwidth * crop_y + crop_x / 2;
264 const uint8_t* src_v = sample + src_width * abs_src_height +
265 halfwidth * (abs_src_height + crop_y) + crop_x / 2;
266 r = H422ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
267 dst_argb, dst_stride_argb, crop_width, inv_crop_height);
268 break;
269 }
270
271 case FOURCC_I444:
272 case FOURCC_YV24: {
273 const uint8_t* src_y = sample + src_width * crop_y + crop_x;
274 const uint8_t* src_u;
275 const uint8_t* src_v;
276 if (format == FOURCC_YV24) {
277 src_v = sample + src_width * (abs_src_height + crop_y) + crop_x;
278 src_u = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
279 } else {
280 src_u = sample + src_width * (abs_src_height + crop_y) + crop_x;
281 src_v = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
282 }
283 r = I444ToARGB(src_y, src_width, src_u, src_width, src_v, src_width,
284 dst_argb, dst_stride_argb, crop_width, inv_crop_height);
285 break;
286 }
287 #ifdef HAVE_JPEG
288 case FOURCC_MJPG:
289 r = MJPGToARGB(sample, sample_size, dst_argb, dst_stride_argb, src_width,
290 abs_src_height, crop_width, inv_crop_height);
291 break;
292 #endif
293 default:
294 r = -1; // unknown fourcc - return failure code.
295 }
296
297 if (need_buf) {
298 if (!r) {
299 r = ARGBRotate(dst_argb, dst_stride_argb, dest_argb, dest_dst_stride_argb,
300 crop_width, abs_crop_height, rotation);
301 }
302 free(rotate_buffer);
303 } else if (rotation) {
304 src = sample + (src_width * crop_y + crop_x) * 4;
305 r = ARGBRotate(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
306 inv_crop_height, rotation);
307 }
308
309 return r;
310 }
311
312 #ifdef __cplusplus
313 } // extern "C"
314 } // namespace libyuv
315 #endif
316