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Issue 2620183002: ConvertToARGB: Allows rotation on ARGB input (Closed)
Patch Set: Created 3 years, 11 months ago
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1 /* 1 /*
2 * Copyright 2011 The LibYuv Project Authors. All rights reserved. 2 * Copyright 2011 The LibYuv Project Authors. All rights reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 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 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 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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43 uint32 fourcc) { 43 uint32 fourcc) {
44 uint32 format = CanonicalFourCC(fourcc); 44 uint32 format = CanonicalFourCC(fourcc);
45 int aligned_src_width = (src_width + 1) & ~1; 45 int aligned_src_width = (src_width + 1) & ~1;
46 const uint8* src; 46 const uint8* src;
47 const uint8* src_uv; 47 const uint8* src_uv;
48 int abs_src_height = (src_height < 0) ? -src_height : src_height; 48 int abs_src_height = (src_height < 0) ? -src_height : src_height;
49 int inv_crop_height = (crop_height < 0) ? -crop_height : crop_height; 49 int inv_crop_height = (crop_height < 0) ? -crop_height : crop_height;
50 int r = 0; 50 int r = 0;
51 51
52 // One pass rotation is available for some formats. For the rest, convert 52 // One pass rotation is available for some formats. For the rest, convert
53 // to I420 (with optional vertical flipping) into a temporary I420 buffer, 53 // to ARGB (with optional vertical flipping) into a temporary ARGB buffer,
54 // and then rotate the I420 to the final destination 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, 55 // For in-place conversion, if destination crop_argb is same as source sample,
56 // also enable temporary buffer. 56 // also enable temporary buffer.
57 LIBYUV_BOOL need_buf = 57 LIBYUV_BOOL need_buf =
58 (rotation && format != FOURCC_ARGB) || crop_argb == sample; 58 (rotation && format != FOURCC_ARGB) || crop_argb == sample;
59 uint8* dest_argb = crop_argb; 59 uint8* dest_argb = crop_argb;
60 int dest_argb_stride = argb_stride; 60 int dest_argb_stride = argb_stride;
61 uint8* rotate_buffer = NULL; 61 uint8* rotate_buffer = NULL;
62 int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height; 62 int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height;
63 63
64 if (crop_argb == NULL || sample == NULL || src_width <= 0 || 64 if (crop_argb == NULL || sample == NULL || src_width <= 0 ||
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95 src = sample + (src_width * crop_y + crop_x) * 3; 95 src = sample + (src_width * crop_y + crop_x) * 3;
96 r = RGB24ToARGB(src, src_width * 3, crop_argb, argb_stride, crop_width, 96 r = RGB24ToARGB(src, src_width * 3, crop_argb, argb_stride, crop_width,
97 inv_crop_height); 97 inv_crop_height);
98 break; 98 break;
99 case FOURCC_RAW: 99 case FOURCC_RAW:
100 src = sample + (src_width * crop_y + crop_x) * 3; 100 src = sample + (src_width * crop_y + crop_x) * 3;
101 r = RAWToARGB(src, src_width * 3, crop_argb, argb_stride, crop_width, 101 r = RAWToARGB(src, src_width * 3, crop_argb, argb_stride, crop_width,
102 inv_crop_height); 102 inv_crop_height);
103 break; 103 break;
104 case FOURCC_ARGB: 104 case FOURCC_ARGB:
105 src = sample + (src_width * crop_y + crop_x) * 4; 105 if (!need_buf && !rotation) {
fbarchard1 2017/01/11 19:42:16 FYI for I420 version the rotation is done here for
106 r = ARGBToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width, 106 src = sample + (src_width * crop_y + crop_x) * 4;
107 inv_crop_height); 107 r = ARGBToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
108 inv_crop_height);
109 }
108 break; 110 break;
109 case FOURCC_BGRA: 111 case FOURCC_BGRA:
110 src = sample + (src_width * crop_y + crop_x) * 4; 112 src = sample + (src_width * crop_y + crop_x) * 4;
111 r = BGRAToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width, 113 r = BGRAToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
112 inv_crop_height); 114 inv_crop_height);
113 break; 115 break;
114 case FOURCC_ABGR: 116 case FOURCC_ABGR:
115 src = sample + (src_width * crop_y + crop_x) * 4; 117 src = sample + (src_width * crop_y + crop_x) * 4;
116 r = ABGRToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width, 118 r = ABGRToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
117 inv_crop_height); 119 inv_crop_height);
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246 default: 248 default:
247 r = -1; // unknown fourcc - return failure code. 249 r = -1; // unknown fourcc - return failure code.
248 } 250 }
249 251
250 if (need_buf) { 252 if (need_buf) {
251 if (!r) { 253 if (!r) {
252 r = ARGBRotate(crop_argb, argb_stride, dest_argb, dest_argb_stride, 254 r = ARGBRotate(crop_argb, argb_stride, dest_argb, dest_argb_stride,
253 crop_width, abs_crop_height, rotation); 255 crop_width, abs_crop_height, rotation);
254 } 256 }
255 free(rotate_buffer); 257 free(rotate_buffer);
258 } else if (rotation) {
259 src = sample + (src_width * crop_y + crop_x) * 4;
260 r = ARGBRotate(src, src_width * 4,
261 crop_argb, argb_stride,
262 crop_width, inv_crop_height, rotation);
256 } 263 }
257 264
258 return r; 265 return r;
259 } 266 }
260 267
261 #ifdef __cplusplus 268 #ifdef __cplusplus
262 } // extern "C" 269 } // extern "C"
263 } // namespace libyuv 270 } // namespace libyuv
264 #endif 271 #endif
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