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1 | /* |
2 | * (C) GraÅžvydas "notaz" Ignotas, 2011 |
3 | * |
4 | * This work is licensed under the terms of any of these licenses |
5 | * (at your option): |
6 | * - GNU GPL, version 2 or later. |
7 | * - GNU LGPL, version 2.1 or later. |
8 | * See the COPYING file in the top-level directory. |
9 | */ |
10 | |
11 | #include "gpu.h" |
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12 | #include "cspace.h" |
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13 | #include "../../frontend/plugin_lib.h" |
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14 | |
15 | static const struct rearmed_cbs *cbs; |
16 | static void *screen_buf; |
17 | |
18 | int vout_init(void) |
19 | { |
20 | return 0; |
21 | } |
22 | |
23 | int vout_finish(void) |
24 | { |
25 | return 0; |
26 | } |
27 | |
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28 | static void check_mode_change(void) |
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29 | { |
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30 | static uint32_t old_status; |
31 | static int old_h; |
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32 | |
33 | // width|rgb24 change? |
34 | if ((gpu.status.reg ^ old_status) & ((7<<16)|(1<<21)) || gpu.screen.h != old_h) |
35 | { |
36 | old_status = gpu.status.reg; |
37 | old_h = gpu.screen.h; |
38 | screen_buf = cbs->pl_vout_set_mode(gpu.screen.hres, |
39 | gpu.screen.h, gpu.status.rgb24 ? 24 : 16); |
40 | } |
41 | } |
42 | |
43 | static void blit(void) |
44 | { |
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45 | int x = gpu.screen.x & ~1; // alignment needed by blitter |
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46 | int y = gpu.screen.y; |
47 | int w = gpu.screen.w; |
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48 | int h = gpu.screen.h; |
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49 | uint16_t *vram = gpu.vram; |
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50 | int stride = gpu.screen.hres; |
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51 | int fb_offs, doffs; |
52 | uint8_t *dest; |
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53 | |
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54 | fb_offs = y * 1024 + x; |
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55 | dest = (uint8_t *)screen_buf; |
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56 | |
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57 | // only do centering, at least for now |
58 | doffs = (stride - w) / 2 & ~1; |
59 | |
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60 | if (gpu.status.rgb24) |
61 | { |
62 | #ifndef MAEMO |
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63 | dest += (doffs / 8) * 24; |
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64 | for (; h-- > 0; dest += stride * 3, fb_offs += 1024) |
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65 | { |
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66 | fb_offs &= 1024*512-1; |
67 | bgr888_to_rgb888(dest, vram + fb_offs, w * 3); |
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68 | } |
69 | #else |
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70 | dest += doffs * 2; |
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71 | for (; h-- > 0; dest += stride * 2, fb_offs += 1024) |
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72 | { |
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73 | fb_offs &= 1024*512-1; |
74 | bgr888_to_rgb565(dest, vram + fb_offs, w * 3); |
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75 | } |
76 | #endif |
77 | } |
78 | else |
79 | { |
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80 | dest += doffs * 2; |
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81 | for (; h-- > 0; dest += stride * 2, fb_offs += 1024) |
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82 | { |
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83 | fb_offs &= 1024*512-1; |
84 | bgr555_to_rgb565(dest, vram + fb_offs, w * 2); |
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85 | } |
86 | } |
87 | |
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88 | screen_buf = cbs->pl_vout_flip(); |
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89 | } |
90 | |
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91 | void vout_update(void) |
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92 | { |
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93 | check_mode_change(); |
94 | if (cbs->pl_vout_raw_flip) |
95 | cbs->pl_vout_raw_flip(gpu.screen.x, gpu.screen.y); |
96 | else |
97 | blit(); |
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98 | } |
99 | |
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100 | long GPUopen(void **unused) |
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101 | { |
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102 | gpu.frameskip.active = 0; |
103 | gpu.frameskip.frame_ready = 1; |
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104 | |
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105 | cbs->pl_vout_open(); |
106 | screen_buf = cbs->pl_vout_flip(); |
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107 | return 0; |
108 | } |
109 | |
110 | long GPUclose(void) |
111 | { |
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112 | cbs->pl_vout_close(); |
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113 | return 0; |
114 | } |
115 | |
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116 | void vout_set_config(const struct rearmed_cbs *cbs_) |
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117 | { |
118 | cbs = cbs_; |
119 | } |
120 | |
121 | // vim:shiftwidth=2:expandtab |