diff options
Diffstat (limited to 'drivers/media/video/s5p-tv/mixer_grp_layer.c')
-rw-r--r-- | drivers/media/video/s5p-tv/mixer_grp_layer.c | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/drivers/media/video/s5p-tv/mixer_grp_layer.c b/drivers/media/video/s5p-tv/mixer_grp_layer.c deleted file mode 100644 index b93a21f5aa13..000000000000 --- a/drivers/media/video/s5p-tv/mixer_grp_layer.c +++ /dev/null | |||
@@ -1,270 +0,0 @@ | |||
1 | /* | ||
2 | * Samsung TV Mixer driver | ||
3 | * | ||
4 | * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. | ||
5 | * | ||
6 | * Tomasz Stanislawski, <t.stanislaws@samsung.com> | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License as published | ||
10 | * by the Free Software Foundiation. either version 2 of the License, | ||
11 | * or (at your option) any later version | ||
12 | */ | ||
13 | |||
14 | #include "mixer.h" | ||
15 | |||
16 | #include <media/videobuf2-dma-contig.h> | ||
17 | |||
18 | /* FORMAT DEFINITIONS */ | ||
19 | |||
20 | static const struct mxr_format mxr_fb_fmt_rgb565 = { | ||
21 | .name = "RGB565", | ||
22 | .fourcc = V4L2_PIX_FMT_RGB565, | ||
23 | .colorspace = V4L2_COLORSPACE_SRGB, | ||
24 | .num_planes = 1, | ||
25 | .plane = { | ||
26 | { .width = 1, .height = 1, .size = 2 }, | ||
27 | }, | ||
28 | .num_subframes = 1, | ||
29 | .cookie = 4, | ||
30 | }; | ||
31 | |||
32 | static const struct mxr_format mxr_fb_fmt_argb1555 = { | ||
33 | .name = "ARGB1555", | ||
34 | .num_planes = 1, | ||
35 | .fourcc = V4L2_PIX_FMT_RGB555, | ||
36 | .colorspace = V4L2_COLORSPACE_SRGB, | ||
37 | .plane = { | ||
38 | { .width = 1, .height = 1, .size = 2 }, | ||
39 | }, | ||
40 | .num_subframes = 1, | ||
41 | .cookie = 5, | ||
42 | }; | ||
43 | |||
44 | static const struct mxr_format mxr_fb_fmt_argb4444 = { | ||
45 | .name = "ARGB4444", | ||
46 | .num_planes = 1, | ||
47 | .fourcc = V4L2_PIX_FMT_RGB444, | ||
48 | .colorspace = V4L2_COLORSPACE_SRGB, | ||
49 | .plane = { | ||
50 | { .width = 1, .height = 1, .size = 2 }, | ||
51 | }, | ||
52 | .num_subframes = 1, | ||
53 | .cookie = 6, | ||
54 | }; | ||
55 | |||
56 | static const struct mxr_format mxr_fb_fmt_argb8888 = { | ||
57 | .name = "ARGB8888", | ||
58 | .fourcc = V4L2_PIX_FMT_BGR32, | ||
59 | .colorspace = V4L2_COLORSPACE_SRGB, | ||
60 | .num_planes = 1, | ||
61 | .plane = { | ||
62 | { .width = 1, .height = 1, .size = 4 }, | ||
63 | }, | ||
64 | .num_subframes = 1, | ||
65 | .cookie = 7, | ||
66 | }; | ||
67 | |||
68 | static const struct mxr_format *mxr_graph_format[] = { | ||
69 | &mxr_fb_fmt_rgb565, | ||
70 | &mxr_fb_fmt_argb1555, | ||
71 | &mxr_fb_fmt_argb4444, | ||
72 | &mxr_fb_fmt_argb8888, | ||
73 | }; | ||
74 | |||
75 | /* AUXILIARY CALLBACKS */ | ||
76 | |||
77 | static void mxr_graph_layer_release(struct mxr_layer *layer) | ||
78 | { | ||
79 | mxr_base_layer_unregister(layer); | ||
80 | mxr_base_layer_release(layer); | ||
81 | } | ||
82 | |||
83 | static void mxr_graph_buffer_set(struct mxr_layer *layer, | ||
84 | struct mxr_buffer *buf) | ||
85 | { | ||
86 | dma_addr_t addr = 0; | ||
87 | |||
88 | if (buf) | ||
89 | addr = vb2_dma_contig_plane_dma_addr(&buf->vb, 0); | ||
90 | mxr_reg_graph_buffer(layer->mdev, layer->idx, addr); | ||
91 | } | ||
92 | |||
93 | static void mxr_graph_stream_set(struct mxr_layer *layer, int en) | ||
94 | { | ||
95 | mxr_reg_graph_layer_stream(layer->mdev, layer->idx, en); | ||
96 | } | ||
97 | |||
98 | static void mxr_graph_format_set(struct mxr_layer *layer) | ||
99 | { | ||
100 | mxr_reg_graph_format(layer->mdev, layer->idx, | ||
101 | layer->fmt, &layer->geo); | ||
102 | } | ||
103 | |||
104 | static inline unsigned int closest(unsigned int x, unsigned int a, | ||
105 | unsigned int b, unsigned long flags) | ||
106 | { | ||
107 | unsigned int mid = (a + b) / 2; | ||
108 | |||
109 | /* choosing closest value with constraints according to table: | ||
110 | * -------------+-----+-----+-----+-------+ | ||
111 | * flags | 0 | LE | GE | LE|GE | | ||
112 | * -------------+-----+-----+-----+-------+ | ||
113 | * x <= a | a | a | a | a | | ||
114 | * a < x <= mid | a | a | b | a | | ||
115 | * mid < x < b | b | a | b | b | | ||
116 | * b <= x | b | b | b | b | | ||
117 | * -------------+-----+-----+-----+-------+ | ||
118 | */ | ||
119 | |||
120 | /* remove all non-constraint flags */ | ||
121 | flags &= V4L2_SEL_FLAG_LE | V4L2_SEL_FLAG_GE; | ||
122 | |||
123 | if (x <= a) | ||
124 | return a; | ||
125 | if (x >= b) | ||
126 | return b; | ||
127 | if (flags == V4L2_SEL_FLAG_LE) | ||
128 | return a; | ||
129 | if (flags == V4L2_SEL_FLAG_GE) | ||
130 | return b; | ||
131 | if (x <= mid) | ||
132 | return a; | ||
133 | return b; | ||
134 | } | ||
135 | |||
136 | static inline unsigned int do_center(unsigned int center, | ||
137 | unsigned int size, unsigned int upper, unsigned int flags) | ||
138 | { | ||
139 | unsigned int lower; | ||
140 | |||
141 | if (flags & MXR_NO_OFFSET) | ||
142 | return 0; | ||
143 | |||
144 | lower = center - min(center, size / 2); | ||
145 | return min(lower, upper - size); | ||
146 | } | ||
147 | |||
148 | static void mxr_graph_fix_geometry(struct mxr_layer *layer, | ||
149 | enum mxr_geometry_stage stage, unsigned long flags) | ||
150 | { | ||
151 | struct mxr_geometry *geo = &layer->geo; | ||
152 | struct mxr_crop *src = &geo->src; | ||
153 | struct mxr_crop *dst = &geo->dst; | ||
154 | unsigned int x_center, y_center; | ||
155 | |||
156 | switch (stage) { | ||
157 | |||
158 | case MXR_GEOMETRY_SINK: /* nothing to be fixed here */ | ||
159 | flags = 0; | ||
160 | /* fall through */ | ||
161 | |||
162 | case MXR_GEOMETRY_COMPOSE: | ||
163 | /* remember center of the area */ | ||
164 | x_center = dst->x_offset + dst->width / 2; | ||
165 | y_center = dst->y_offset + dst->height / 2; | ||
166 | /* round up/down to 2 multiple depending on flags */ | ||
167 | if (flags & V4L2_SEL_FLAG_LE) { | ||
168 | dst->width = round_down(dst->width, 2); | ||
169 | dst->height = round_down(dst->height, 2); | ||
170 | } else { | ||
171 | dst->width = round_up(dst->width, 2); | ||
172 | dst->height = round_up(dst->height, 2); | ||
173 | } | ||
174 | /* assure that compose rect is inside display area */ | ||
175 | dst->width = min(dst->width, dst->full_width); | ||
176 | dst->height = min(dst->height, dst->full_height); | ||
177 | |||
178 | /* ensure that compose is reachable using 2x scaling */ | ||
179 | dst->width = min(dst->width, 2 * src->full_width); | ||
180 | dst->height = min(dst->height, 2 * src->full_height); | ||
181 | |||
182 | /* setup offsets */ | ||
183 | dst->x_offset = do_center(x_center, dst->width, | ||
184 | dst->full_width, flags); | ||
185 | dst->y_offset = do_center(y_center, dst->height, | ||
186 | dst->full_height, flags); | ||
187 | flags = 0; | ||
188 | /* fall through */ | ||
189 | |||
190 | case MXR_GEOMETRY_CROP: | ||
191 | /* remember center of the area */ | ||
192 | x_center = src->x_offset + src->width / 2; | ||
193 | y_center = src->y_offset + src->height / 2; | ||
194 | /* ensure that cropping area lies inside the buffer */ | ||
195 | if (src->full_width < dst->width) | ||
196 | src->width = dst->width / 2; | ||
197 | else | ||
198 | src->width = closest(src->width, dst->width / 2, | ||
199 | dst->width, flags); | ||
200 | |||
201 | if (src->width == dst->width) | ||
202 | geo->x_ratio = 0; | ||
203 | else | ||
204 | geo->x_ratio = 1; | ||
205 | |||
206 | if (src->full_height < dst->height) | ||
207 | src->height = dst->height / 2; | ||
208 | else | ||
209 | src->height = closest(src->height, dst->height / 2, | ||
210 | dst->height, flags); | ||
211 | |||
212 | if (src->height == dst->height) | ||
213 | geo->y_ratio = 0; | ||
214 | else | ||
215 | geo->y_ratio = 1; | ||
216 | |||
217 | /* setup offsets */ | ||
218 | src->x_offset = do_center(x_center, src->width, | ||
219 | src->full_width, flags); | ||
220 | src->y_offset = do_center(y_center, src->height, | ||
221 | src->full_height, flags); | ||
222 | flags = 0; | ||
223 | /* fall through */ | ||
224 | case MXR_GEOMETRY_SOURCE: | ||
225 | src->full_width = clamp_val(src->full_width, | ||
226 | src->width + src->x_offset, 32767); | ||
227 | src->full_height = clamp_val(src->full_height, | ||
228 | src->height + src->y_offset, 2047); | ||
229 | }; | ||
230 | } | ||
231 | |||
232 | /* PUBLIC API */ | ||
233 | |||
234 | struct mxr_layer *mxr_graph_layer_create(struct mxr_device *mdev, int idx) | ||
235 | { | ||
236 | struct mxr_layer *layer; | ||
237 | int ret; | ||
238 | struct mxr_layer_ops ops = { | ||
239 | .release = mxr_graph_layer_release, | ||
240 | .buffer_set = mxr_graph_buffer_set, | ||
241 | .stream_set = mxr_graph_stream_set, | ||
242 | .format_set = mxr_graph_format_set, | ||
243 | .fix_geometry = mxr_graph_fix_geometry, | ||
244 | }; | ||
245 | char name[32]; | ||
246 | |||
247 | sprintf(name, "graph%d", idx); | ||
248 | |||
249 | layer = mxr_base_layer_create(mdev, idx, name, &ops); | ||
250 | if (layer == NULL) { | ||
251 | mxr_err(mdev, "failed to initialize layer(%d) base\n", idx); | ||
252 | goto fail; | ||
253 | } | ||
254 | |||
255 | layer->fmt_array = mxr_graph_format; | ||
256 | layer->fmt_array_size = ARRAY_SIZE(mxr_graph_format); | ||
257 | |||
258 | ret = mxr_base_layer_register(layer); | ||
259 | if (ret) | ||
260 | goto fail_layer; | ||
261 | |||
262 | return layer; | ||
263 | |||
264 | fail_layer: | ||
265 | mxr_base_layer_release(layer); | ||
266 | |||
267 | fail: | ||
268 | return NULL; | ||
269 | } | ||
270 | |||