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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" |
12 | #include "../../frontend/plugin_lib.h" |
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13 | #include "../../frontend/cspace.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 | |
28 | static void blit(void) |
29 | { |
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30 | static uint32_t old_status; |
31 | static int old_h; |
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32 | int x = gpu.screen.x & ~1; // alignment needed by blitter |
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33 | int y = gpu.screen.y; |
34 | int w = gpu.screen.w; |
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35 | int h = gpu.screen.h; |
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36 | uint16_t *vram = gpu.vram; |
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37 | int stride = gpu.screen.hres; |
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38 | int fb_offs, doffs; |
39 | uint8_t *dest; |
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40 | |
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41 | fb_offs = y * 1024 + x; |
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42 | |
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43 | if ((gpu.status.reg ^ old_status) & ((7<<16)|(1<<21)) || h != old_h) // width|rgb24 change? |
44 | { |
45 | old_status = gpu.status.reg; |
46 | old_h = h; |
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47 | screen_buf = cbs->pl_vout_set_mode(stride, h, gpu.status.rgb24 ? 24 : 16); |
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48 | } |
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49 | |
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50 | dest = (uint8_t *)screen_buf; |
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51 | |
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52 | // only do centering, at least for now |
53 | doffs = (stride - w) / 2 & ~1; |
54 | |
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55 | if (gpu.status.rgb24) |
56 | { |
57 | #ifndef MAEMO |
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58 | dest += (doffs / 8) * 24; |
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59 | for (; h-- > 0; dest += stride * 3, fb_offs += 1024) |
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60 | { |
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61 | fb_offs &= 1024*512-1; |
62 | bgr888_to_rgb888(dest, vram + fb_offs, w * 3); |
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63 | } |
64 | #else |
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65 | dest += doffs * 2; |
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66 | for (; h-- > 0; dest += stride * 2, fb_offs += 1024) |
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67 | { |
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68 | fb_offs &= 1024*512-1; |
69 | bgr888_to_rgb565(dest, vram + fb_offs, w * 3); |
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70 | } |
71 | #endif |
72 | } |
73 | else |
74 | { |
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75 | dest += doffs * 2; |
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76 | for (; h-- > 0; dest += stride * 2, fb_offs += 1024) |
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77 | { |
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78 | fb_offs &= 1024*512-1; |
79 | bgr555_to_rgb565(dest, vram + fb_offs, w * 2); |
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80 | } |
81 | } |
82 | |
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83 | screen_buf = cbs->pl_vout_flip(); |
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84 | } |
85 | |
86 | void GPUupdateLace(void) |
87 | { |
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88 | if (gpu.status.blanking || !gpu.state.fb_dirty) |
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89 | return; |
90 | |
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91 | if (gpu.frameskip.set) { |
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92 | if (!gpu.frameskip.frame_ready && gpu.frameskip.skipped_blits < 9) { |
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93 | gpu.frameskip.skipped_blits++; |
94 | return; |
95 | } |
96 | gpu.frameskip.frame_ready = 0; |
97 | gpu.frameskip.skipped_blits = 0; |
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98 | } |
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99 | |
100 | renderer_flush_queues(); |
101 | blit(); |
102 | gpu.state.fb_dirty = 0; |
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103 | } |
104 | |
105 | long GPUopen(void) |
106 | { |
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107 | gpu.frameskip.active = 0; |
108 | gpu.frameskip.frame_ready = 1; |
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109 | |
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110 | cbs->pl_vout_open(); |
111 | screen_buf = cbs->pl_vout_flip(); |
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112 | return 0; |
113 | } |
114 | |
115 | long GPUclose(void) |
116 | { |
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117 | cbs->pl_vout_close(); |
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118 | return 0; |
119 | } |
120 | |
121 | void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_) |
122 | { |
123 | cbs = cbs_; |
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124 | gpu.frameskip.set = cbs->frameskip; |
125 | gpu.frameskip.advice = &cbs->fskip_advice; |
126 | gpu.frameskip.active = 0; |
127 | gpu.frameskip.frame_ready = 1; |
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128 | gpu.state.hcnt = cbs->gpu_hcnt; |
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129 | } |
130 | |
131 | // vim:shiftwidth=2:expandtab |