Line data Source code
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 : LIBYUV_API
32 0 : int ConvertToARGB(const uint8* sample,
33 : size_t sample_size,
34 : uint8* crop_argb,
35 : int argb_stride,
36 : int crop_x,
37 : int crop_y,
38 : int src_width,
39 : int src_height,
40 : int crop_width,
41 : int crop_height,
42 : enum RotationMode rotation,
43 : uint32 fourcc) {
44 0 : uint32 format = CanonicalFourCC(fourcc);
45 0 : int aligned_src_width = (src_width + 1) & ~1;
46 : const uint8* src;
47 : const uint8* src_uv;
48 0 : int abs_src_height = (src_height < 0) ? -src_height : src_height;
49 0 : int inv_crop_height = (crop_height < 0) ? -crop_height : crop_height;
50 0 : int r = 0;
51 :
52 : // One pass rotation is available for some formats. For the rest, convert
53 : // to ARGB (with optional vertical flipping) into a temporary ARGB buffer,
54 : // and then rotate the ARGB to the final destination buffer.
55 : // For in-place conversion, if destination crop_argb is same as source sample,
56 : // also enable temporary buffer.
57 : LIBYUV_BOOL need_buf =
58 0 : (rotation && format != FOURCC_ARGB) || crop_argb == sample;
59 0 : uint8* dest_argb = crop_argb;
60 0 : int dest_argb_stride = argb_stride;
61 0 : uint8* rotate_buffer = NULL;
62 0 : int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height;
63 :
64 0 : if (crop_argb == NULL || sample == NULL || src_width <= 0 ||
65 0 : crop_width <= 0 || src_height == 0 || crop_height == 0) {
66 0 : return -1;
67 : }
68 0 : if (src_height < 0) {
69 0 : inv_crop_height = -inv_crop_height;
70 : }
71 :
72 0 : if (need_buf) {
73 0 : int argb_size = crop_width * 4 * abs_crop_height;
74 0 : rotate_buffer = (uint8*)malloc(argb_size); /* NOLINT */
75 0 : if (!rotate_buffer) {
76 0 : return 1; // Out of memory runtime error.
77 : }
78 0 : crop_argb = rotate_buffer;
79 0 : argb_stride = crop_width * 4;
80 : }
81 :
82 0 : switch (format) {
83 : // Single plane formats
84 : case FOURCC_YUY2:
85 0 : src = sample + (aligned_src_width * crop_y + crop_x) * 2;
86 0 : r = YUY2ToARGB(src, aligned_src_width * 2, crop_argb, argb_stride,
87 0 : crop_width, inv_crop_height);
88 0 : break;
89 : case FOURCC_UYVY:
90 0 : src = sample + (aligned_src_width * crop_y + crop_x) * 2;
91 0 : r = UYVYToARGB(src, aligned_src_width * 2, crop_argb, argb_stride,
92 0 : crop_width, inv_crop_height);
93 0 : break;
94 : case FOURCC_24BG:
95 0 : src = sample + (src_width * crop_y + crop_x) * 3;
96 0 : r = RGB24ToARGB(src, src_width * 3, crop_argb, argb_stride, crop_width,
97 0 : inv_crop_height);
98 0 : break;
99 : case FOURCC_RAW:
100 0 : src = sample + (src_width * crop_y + crop_x) * 3;
101 0 : r = RAWToARGB(src, src_width * 3, crop_argb, argb_stride, crop_width,
102 0 : inv_crop_height);
103 0 : break;
104 : case FOURCC_ARGB:
105 0 : if (!need_buf && !rotation) {
106 0 : src = sample + (src_width * crop_y + crop_x) * 4;
107 0 : r = ARGBToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
108 0 : inv_crop_height);
109 : }
110 0 : break;
111 : case FOURCC_BGRA:
112 0 : src = sample + (src_width * crop_y + crop_x) * 4;
113 0 : r = BGRAToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
114 0 : inv_crop_height);
115 0 : break;
116 : case FOURCC_ABGR:
117 0 : src = sample + (src_width * crop_y + crop_x) * 4;
118 0 : r = ABGRToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
119 0 : inv_crop_height);
120 0 : break;
121 : case FOURCC_RGBA:
122 0 : src = sample + (src_width * crop_y + crop_x) * 4;
123 0 : r = RGBAToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
124 0 : inv_crop_height);
125 0 : break;
126 : case FOURCC_RGBP:
127 0 : src = sample + (src_width * crop_y + crop_x) * 2;
128 0 : r = RGB565ToARGB(src, src_width * 2, crop_argb, argb_stride, crop_width,
129 0 : inv_crop_height);
130 0 : break;
131 : case FOURCC_RGBO:
132 0 : src = sample + (src_width * crop_y + crop_x) * 2;
133 0 : r = ARGB1555ToARGB(src, src_width * 2, crop_argb, argb_stride, crop_width,
134 0 : inv_crop_height);
135 0 : break;
136 : case FOURCC_R444:
137 0 : src = sample + (src_width * crop_y + crop_x) * 2;
138 0 : r = ARGB4444ToARGB(src, src_width * 2, crop_argb, argb_stride, crop_width,
139 0 : inv_crop_height);
140 0 : break;
141 : case FOURCC_I400:
142 0 : src = sample + src_width * crop_y + crop_x;
143 : r = I400ToARGB(src, src_width, crop_argb, argb_stride, crop_width,
144 0 : inv_crop_height);
145 0 : break;
146 :
147 : // Biplanar formats
148 : case FOURCC_NV12:
149 0 : src = sample + (src_width * crop_y + crop_x);
150 0 : src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x;
151 : r = NV12ToARGB(src, src_width, src_uv, aligned_src_width, crop_argb,
152 0 : argb_stride, crop_width, inv_crop_height);
153 0 : break;
154 : case FOURCC_NV21:
155 0 : src = sample + (src_width * crop_y + crop_x);
156 0 : src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x;
157 : // Call NV12 but with u and v parameters swapped.
158 : r = NV21ToARGB(src, src_width, src_uv, aligned_src_width, crop_argb,
159 0 : argb_stride, crop_width, inv_crop_height);
160 0 : break;
161 : case FOURCC_M420:
162 0 : src = sample + (src_width * crop_y) * 12 / 8 + crop_x;
163 : r = M420ToARGB(src, src_width, crop_argb, argb_stride, crop_width,
164 0 : inv_crop_height);
165 0 : break;
166 : // Triplanar formats
167 : case FOURCC_I420:
168 : case FOURCC_YV12: {
169 0 : const uint8* src_y = sample + (src_width * crop_y + crop_x);
170 : const uint8* src_u;
171 : const uint8* src_v;
172 0 : int halfwidth = (src_width + 1) / 2;
173 0 : int halfheight = (abs_src_height + 1) / 2;
174 0 : if (format == FOURCC_YV12) {
175 0 : src_v = sample + src_width * abs_src_height +
176 0 : (halfwidth * crop_y + crop_x) / 2;
177 0 : src_u = sample + src_width * abs_src_height +
178 0 : halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
179 : } else {
180 0 : src_u = sample + src_width * abs_src_height +
181 0 : (halfwidth * crop_y + crop_x) / 2;
182 0 : src_v = sample + src_width * abs_src_height +
183 0 : halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
184 : }
185 : r = I420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
186 0 : crop_argb, argb_stride, crop_width, inv_crop_height);
187 0 : break;
188 : }
189 :
190 : case FOURCC_J420: {
191 0 : const uint8* src_y = sample + (src_width * crop_y + crop_x);
192 : const uint8* src_u;
193 : const uint8* src_v;
194 0 : int halfwidth = (src_width + 1) / 2;
195 0 : int halfheight = (abs_src_height + 1) / 2;
196 0 : src_u = sample + src_width * abs_src_height +
197 0 : (halfwidth * crop_y + crop_x) / 2;
198 0 : src_v = sample + src_width * abs_src_height +
199 0 : halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
200 : r = J420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
201 0 : crop_argb, argb_stride, crop_width, inv_crop_height);
202 0 : break;
203 : }
204 :
205 : case FOURCC_I422:
206 : case FOURCC_YV16: {
207 0 : const uint8* src_y = sample + src_width * crop_y + crop_x;
208 : const uint8* src_u;
209 : const uint8* src_v;
210 0 : int halfwidth = (src_width + 1) / 2;
211 0 : if (format == FOURCC_YV16) {
212 0 : src_v = sample + src_width * abs_src_height + halfwidth * crop_y +
213 0 : crop_x / 2;
214 0 : src_u = sample + src_width * abs_src_height +
215 0 : halfwidth * (abs_src_height + crop_y) + crop_x / 2;
216 : } else {
217 0 : src_u = sample + src_width * abs_src_height + halfwidth * crop_y +
218 0 : crop_x / 2;
219 0 : src_v = sample + src_width * abs_src_height +
220 0 : halfwidth * (abs_src_height + crop_y) + crop_x / 2;
221 : }
222 : r = I422ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
223 0 : crop_argb, argb_stride, crop_width, inv_crop_height);
224 0 : break;
225 : }
226 : case FOURCC_I444:
227 : case FOURCC_YV24: {
228 0 : const uint8* src_y = sample + src_width * crop_y + crop_x;
229 : const uint8* src_u;
230 : const uint8* src_v;
231 0 : if (format == FOURCC_YV24) {
232 0 : src_v = sample + src_width * (abs_src_height + crop_y) + crop_x;
233 0 : src_u = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
234 : } else {
235 0 : src_u = sample + src_width * (abs_src_height + crop_y) + crop_x;
236 0 : src_v = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
237 : }
238 : r = I444ToARGB(src_y, src_width, src_u, src_width, src_v, src_width,
239 0 : crop_argb, argb_stride, crop_width, inv_crop_height);
240 0 : break;
241 : }
242 : #ifdef HAVE_JPEG
243 : case FOURCC_MJPG:
244 : r = MJPGToARGB(sample, sample_size, crop_argb, argb_stride, src_width,
245 0 : abs_src_height, crop_width, inv_crop_height);
246 0 : break;
247 : #endif
248 : default:
249 0 : r = -1; // unknown fourcc - return failure code.
250 : }
251 :
252 0 : if (need_buf) {
253 0 : if (!r) {
254 : r = ARGBRotate(crop_argb, argb_stride, dest_argb, dest_argb_stride,
255 0 : crop_width, abs_crop_height, rotation);
256 : }
257 0 : free(rotate_buffer);
258 0 : } else if (rotation) {
259 0 : src = sample + (src_width * crop_y + crop_x) * 4;
260 0 : r = ARGBRotate(src, src_width * 4, crop_argb, argb_stride, crop_width,
261 0 : inv_crop_height, rotation);
262 : }
263 :
264 0 : return r;
265 : }
266 :
267 : #ifdef __cplusplus
268 : } // extern "C"
269 : } // namespace libyuv
270 : #endif
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