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1 /* |
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2 * QEMU Epson S1D13744/S1D13745 templates |
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3 * |
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4 * Copyright (C) 2008 Nokia Corporation |
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5 * Written by Andrzej Zaborowski <andrew@openedhand.com> |
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6 * |
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7 * This program is free software; you can redistribute it and/or |
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8 * modify it under the terms of the GNU General Public License as |
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9 * published by the Free Software Foundation; either version 2 or |
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10 * (at your option) version 3 of the License. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, |
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 * GNU General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU General Public License |
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18 * along with this program; if not, write to the Free Software |
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19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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20 * MA 02111-1307 USA |
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21 */ |
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22 |
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23 #define SKIP_PIXEL(to) to += deststep |
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24 #if DEPTH == 8 |
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25 # define PIXEL_TYPE uint8_t |
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26 # define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to) |
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27 # define COPY_PIXEL1(to, from) *to ++ = from |
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28 #elif DEPTH == 15 || DEPTH == 16 |
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29 # define PIXEL_TYPE uint16_t |
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30 # define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to) |
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31 # define COPY_PIXEL1(to, from) *to ++ = from |
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32 #elif DEPTH == 24 |
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33 # define PIXEL_TYPE uint8_t |
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34 # define COPY_PIXEL(to, from) \ |
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35 to[0] = from; to[1] = (from) >> 8; to[2] = (from) >> 16; SKIP_PIXEL(to) |
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36 # define COPY_PIXEL1(to, from) \ |
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37 *to ++ = from; *to ++ = (from) >> 8; *to ++ = (from) >> 16 |
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38 #elif DEPTH == 32 |
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39 # define PIXEL_TYPE uint32_t |
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40 # define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to) |
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41 # define COPY_PIXEL1(to, from) *to ++ = from |
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42 #else |
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43 # error unknown bit depth |
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44 #endif |
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45 |
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46 #ifdef WORDS_BIGENDIAN |
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47 # define SWAP_WORDS 1 |
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48 #endif |
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49 |
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50 static void glue(blizzard_draw_line16_, DEPTH)(PIXEL_TYPE *dest, |
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51 const uint16_t *src, unsigned int width) |
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52 { |
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53 #if !defined(SWAP_WORDS) && DEPTH == 16 |
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54 memcpy(dest, src, width); |
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55 #else |
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56 uint16_t data; |
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57 unsigned int r, g, b; |
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58 const uint16_t *end = (const void *) src + width; |
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59 while (src < end) { |
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60 data = lduw_raw(src ++); |
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61 b = (data & 0x1f) << 3; |
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62 data >>= 5; |
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63 g = (data & 0x3f) << 2; |
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64 data >>= 6; |
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65 r = (data & 0x1f) << 3; |
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66 data >>= 5; |
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67 COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b)); |
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68 } |
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69 #endif |
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70 } |
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71 |
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72 static void glue(blizzard_draw_line24mode1_, DEPTH)(PIXEL_TYPE *dest, |
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73 const uint8_t *src, unsigned int width) |
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74 { |
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75 /* TODO: check if SDL 24-bit planes are not in the same format and |
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76 * if so, use memcpy */ |
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77 unsigned int r[2], g[2], b[2]; |
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78 const uint8_t *end = src + width; |
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79 while (src < end) { |
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80 g[0] = *src ++; |
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81 r[0] = *src ++; |
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82 r[1] = *src ++; |
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83 b[0] = *src ++; |
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84 COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r[0], g[0], b[0])); |
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85 b[1] = *src ++; |
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86 g[1] = *src ++; |
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87 COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r[1], g[1], b[1])); |
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88 } |
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89 } |
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90 |
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91 static void glue(blizzard_draw_line24mode2_, DEPTH)(PIXEL_TYPE *dest, |
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92 const uint8_t *src, unsigned int width) |
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93 { |
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94 unsigned int r, g, b; |
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95 const uint8_t *end = src + width; |
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96 while (src < end) { |
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97 r = *src ++; |
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98 src ++; |
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99 b = *src ++; |
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100 g = *src ++; |
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101 COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b)); |
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102 } |
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103 } |
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104 |
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105 /* No rotation */ |
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106 static blizzard_fn_t glue(blizzard_draw_fn_, DEPTH)[0x10] = { |
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107 NULL, |
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108 /* RGB 5:6:5*/ |
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109 (blizzard_fn_t) glue(blizzard_draw_line16_, DEPTH), |
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110 /* RGB 6:6:6 mode 1 */ |
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111 (blizzard_fn_t) glue(blizzard_draw_line24mode1_, DEPTH), |
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112 /* RGB 8:8:8 mode 1 */ |
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113 (blizzard_fn_t) glue(blizzard_draw_line24mode1_, DEPTH), |
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114 NULL, NULL, |
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115 /* RGB 6:6:6 mode 2 */ |
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116 (blizzard_fn_t) glue(blizzard_draw_line24mode2_, DEPTH), |
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117 /* RGB 8:8:8 mode 2 */ |
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118 (blizzard_fn_t) glue(blizzard_draw_line24mode2_, DEPTH), |
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119 /* YUV 4:2:2 */ |
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120 NULL, |
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121 /* YUV 4:2:0 */ |
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122 NULL, |
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123 NULL, NULL, NULL, NULL, NULL, NULL, |
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124 }; |
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125 |
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126 /* 90deg, 180deg and 270deg rotation */ |
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127 static blizzard_fn_t glue(blizzard_draw_fn_r_, DEPTH)[0x10] = { |
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128 /* TODO */ |
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129 [0 ... 0xf] = NULL, |
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130 }; |
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131 |
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132 #undef DEPTH |
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133 #undef SKIP_PIXEL |
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134 #undef COPY_PIXEL |
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135 #undef COPY_PIXEL1 |
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136 #undef PIXEL_TYPE |
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137 |
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138 #undef SWAP_WORDS |