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1 /* |
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2 * QEMU VGA Emulator templates |
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3 * |
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4 * Copyright (c) 2003 Fabrice Bellard |
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5 * |
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6 * Permission is hereby granted, free of charge, to any person obtaining a copy |
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7 * of this software and associated documentation files (the "Software"), to deal |
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8 * in the Software without restriction, including without limitation the rights |
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9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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10 * copies of the Software, and to permit persons to whom the Software is |
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11 * furnished to do so, subject to the following conditions: |
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12 * |
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13 * The above copyright notice and this permission notice shall be included in |
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14 * all copies or substantial portions of the Software. |
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15 * |
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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22 * THE SOFTWARE. |
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23 */ |
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24 |
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25 #if DEPTH == 8 |
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26 #define BPP 1 |
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27 #define PIXEL_TYPE uint8_t |
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28 #elif DEPTH == 15 || DEPTH == 16 |
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29 #define BPP 2 |
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30 #define PIXEL_TYPE uint16_t |
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31 #elif DEPTH == 32 |
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32 #define BPP 4 |
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33 #define PIXEL_TYPE uint32_t |
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34 #else |
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35 #error unsupport depth |
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36 #endif |
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37 |
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38 #ifdef BGR_FORMAT |
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39 #define PIXEL_NAME glue(DEPTH, bgr) |
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40 #else |
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41 #define PIXEL_NAME DEPTH |
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42 #endif /* BGR_FORMAT */ |
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43 |
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44 #if DEPTH != 15 && !defined(BGR_FORMAT) |
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45 |
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46 static inline void glue(vga_draw_glyph_line_, DEPTH)(uint8_t *d, |
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47 uint32_t font_data, |
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48 uint32_t xorcol, |
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49 uint32_t bgcol) |
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50 { |
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51 #if BPP == 1 |
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52 ((uint32_t *)d)[0] = (dmask16[(font_data >> 4)] & xorcol) ^ bgcol; |
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53 ((uint32_t *)d)[1] = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol; |
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54 #elif BPP == 2 |
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55 ((uint32_t *)d)[0] = (dmask4[(font_data >> 6)] & xorcol) ^ bgcol; |
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56 ((uint32_t *)d)[1] = (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol; |
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57 ((uint32_t *)d)[2] = (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol; |
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58 ((uint32_t *)d)[3] = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol; |
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59 #else |
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60 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol; |
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61 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol; |
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62 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol; |
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63 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol; |
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64 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol; |
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65 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol; |
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66 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol; |
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67 ((uint32_t *)d)[7] = (-((font_data >> 0) & 1) & xorcol) ^ bgcol; |
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68 #endif |
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69 } |
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70 |
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71 static void glue(vga_draw_glyph8_, DEPTH)(uint8_t *d, int linesize, |
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72 const uint8_t *font_ptr, int h, |
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73 uint32_t fgcol, uint32_t bgcol) |
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74 { |
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75 uint32_t font_data, xorcol; |
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76 |
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77 xorcol = bgcol ^ fgcol; |
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78 do { |
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79 font_data = font_ptr[0]; |
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80 glue(vga_draw_glyph_line_, DEPTH)(d, font_data, xorcol, bgcol); |
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81 font_ptr += 4; |
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82 d += linesize; |
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83 } while (--h); |
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84 } |
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85 |
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86 static void glue(vga_draw_glyph16_, DEPTH)(uint8_t *d, int linesize, |
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87 const uint8_t *font_ptr, int h, |
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88 uint32_t fgcol, uint32_t bgcol) |
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89 { |
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90 uint32_t font_data, xorcol; |
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91 |
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92 xorcol = bgcol ^ fgcol; |
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93 do { |
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94 font_data = font_ptr[0]; |
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95 glue(vga_draw_glyph_line_, DEPTH)(d, |
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96 expand4to8[font_data >> 4], |
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97 xorcol, bgcol); |
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98 glue(vga_draw_glyph_line_, DEPTH)(d + 8 * BPP, |
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99 expand4to8[font_data & 0x0f], |
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100 xorcol, bgcol); |
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101 font_ptr += 4; |
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102 d += linesize; |
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103 } while (--h); |
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104 } |
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105 |
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106 static void glue(vga_draw_glyph9_, DEPTH)(uint8_t *d, int linesize, |
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107 const uint8_t *font_ptr, int h, |
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108 uint32_t fgcol, uint32_t bgcol, int dup9) |
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109 { |
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110 uint32_t font_data, xorcol, v; |
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111 |
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112 xorcol = bgcol ^ fgcol; |
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113 do { |
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114 font_data = font_ptr[0]; |
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115 #if BPP == 1 |
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116 cpu_to_32wu((uint32_t *)d, (dmask16[(font_data >> 4)] & xorcol) ^ bgcol); |
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117 v = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol; |
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118 cpu_to_32wu(((uint32_t *)d)+1, v); |
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119 if (dup9) |
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120 ((uint8_t *)d)[8] = v >> (24 * (1 - BIG)); |
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121 else |
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122 ((uint8_t *)d)[8] = bgcol; |
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123 |
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124 #elif BPP == 2 |
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125 cpu_to_32wu(((uint32_t *)d)+0, (dmask4[(font_data >> 6)] & xorcol) ^ bgcol); |
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126 cpu_to_32wu(((uint32_t *)d)+1, (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol); |
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127 cpu_to_32wu(((uint32_t *)d)+2, (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol); |
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128 v = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol; |
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129 cpu_to_32wu(((uint32_t *)d)+3, v); |
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130 if (dup9) |
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131 ((uint16_t *)d)[8] = v >> (16 * (1 - BIG)); |
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132 else |
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133 ((uint16_t *)d)[8] = bgcol; |
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134 #else |
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135 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol; |
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136 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol; |
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137 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol; |
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138 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol; |
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139 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol; |
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140 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol; |
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141 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol; |
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142 v = (-((font_data >> 0) & 1) & xorcol) ^ bgcol; |
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143 ((uint32_t *)d)[7] = v; |
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144 if (dup9) |
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145 ((uint32_t *)d)[8] = v; |
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146 else |
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147 ((uint32_t *)d)[8] = bgcol; |
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148 #endif |
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149 font_ptr += 4; |
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150 d += linesize; |
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151 } while (--h); |
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152 } |
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153 |
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154 /* |
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155 * 4 color mode |
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156 */ |
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157 static void glue(vga_draw_line2_, DEPTH)(VGAState *s1, uint8_t *d, |
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158 const uint8_t *s, int width) |
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159 { |
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160 uint32_t plane_mask, *palette, data, v; |
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161 int x; |
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162 |
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163 palette = s1->last_palette; |
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164 plane_mask = mask16[s1->ar[0x12] & 0xf]; |
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165 width >>= 3; |
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166 for(x = 0; x < width; x++) { |
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167 data = ((uint32_t *)s)[0]; |
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168 data &= plane_mask; |
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169 v = expand2[GET_PLANE(data, 0)]; |
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170 v |= expand2[GET_PLANE(data, 2)] << 2; |
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171 ((PIXEL_TYPE *)d)[0] = palette[v >> 12]; |
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172 ((PIXEL_TYPE *)d)[1] = palette[(v >> 8) & 0xf]; |
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173 ((PIXEL_TYPE *)d)[2] = palette[(v >> 4) & 0xf]; |
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174 ((PIXEL_TYPE *)d)[3] = palette[(v >> 0) & 0xf]; |
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175 |
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176 v = expand2[GET_PLANE(data, 1)]; |
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177 v |= expand2[GET_PLANE(data, 3)] << 2; |
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178 ((PIXEL_TYPE *)d)[4] = palette[v >> 12]; |
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179 ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf]; |
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180 ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf]; |
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181 ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf]; |
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182 d += BPP * 8; |
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183 s += 4; |
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184 } |
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185 } |
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186 |
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187 #if BPP == 1 |
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188 #define PUT_PIXEL2(d, n, v) ((uint16_t *)d)[(n)] = (v) |
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189 #elif BPP == 2 |
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190 #define PUT_PIXEL2(d, n, v) ((uint32_t *)d)[(n)] = (v) |
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191 #else |
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192 #define PUT_PIXEL2(d, n, v) \ |
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193 ((uint32_t *)d)[2*(n)] = ((uint32_t *)d)[2*(n)+1] = (v) |
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194 #endif |
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195 |
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196 /* |
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197 * 4 color mode, dup2 horizontal |
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198 */ |
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199 static void glue(vga_draw_line2d2_, DEPTH)(VGAState *s1, uint8_t *d, |
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200 const uint8_t *s, int width) |
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201 { |
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202 uint32_t plane_mask, *palette, data, v; |
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203 int x; |
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204 |
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205 palette = s1->last_palette; |
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206 plane_mask = mask16[s1->ar[0x12] & 0xf]; |
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207 width >>= 3; |
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208 for(x = 0; x < width; x++) { |
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209 data = ((uint32_t *)s)[0]; |
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210 data &= plane_mask; |
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211 v = expand2[GET_PLANE(data, 0)]; |
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212 v |= expand2[GET_PLANE(data, 2)] << 2; |
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213 PUT_PIXEL2(d, 0, palette[v >> 12]); |
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214 PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]); |
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215 PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]); |
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216 PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]); |
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217 |
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218 v = expand2[GET_PLANE(data, 1)]; |
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219 v |= expand2[GET_PLANE(data, 3)] << 2; |
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220 PUT_PIXEL2(d, 4, palette[v >> 12]); |
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221 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]); |
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222 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]); |
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223 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]); |
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224 d += BPP * 16; |
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225 s += 4; |
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226 } |
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227 } |
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228 |
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229 /* |
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230 * 16 color mode |
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231 */ |
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232 static void glue(vga_draw_line4_, DEPTH)(VGAState *s1, uint8_t *d, |
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233 const uint8_t *s, int width) |
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234 { |
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235 uint32_t plane_mask, data, v, *palette; |
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236 int x; |
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237 |
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238 palette = s1->last_palette; |
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239 plane_mask = mask16[s1->ar[0x12] & 0xf]; |
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240 width >>= 3; |
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241 for(x = 0; x < width; x++) { |
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242 data = ((uint32_t *)s)[0]; |
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243 data &= plane_mask; |
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244 v = expand4[GET_PLANE(data, 0)]; |
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245 v |= expand4[GET_PLANE(data, 1)] << 1; |
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246 v |= expand4[GET_PLANE(data, 2)] << 2; |
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247 v |= expand4[GET_PLANE(data, 3)] << 3; |
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248 ((PIXEL_TYPE *)d)[0] = palette[v >> 28]; |
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249 ((PIXEL_TYPE *)d)[1] = palette[(v >> 24) & 0xf]; |
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250 ((PIXEL_TYPE *)d)[2] = palette[(v >> 20) & 0xf]; |
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251 ((PIXEL_TYPE *)d)[3] = palette[(v >> 16) & 0xf]; |
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252 ((PIXEL_TYPE *)d)[4] = palette[(v >> 12) & 0xf]; |
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253 ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf]; |
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254 ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf]; |
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255 ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf]; |
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256 d += BPP * 8; |
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257 s += 4; |
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258 } |
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259 } |
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260 |
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261 /* |
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262 * 16 color mode, dup2 horizontal |
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263 */ |
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264 static void glue(vga_draw_line4d2_, DEPTH)(VGAState *s1, uint8_t *d, |
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265 const uint8_t *s, int width) |
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266 { |
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267 uint32_t plane_mask, data, v, *palette; |
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268 int x; |
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269 |
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270 palette = s1->last_palette; |
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271 plane_mask = mask16[s1->ar[0x12] & 0xf]; |
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272 width >>= 3; |
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273 for(x = 0; x < width; x++) { |
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274 data = ((uint32_t *)s)[0]; |
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275 data &= plane_mask; |
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276 v = expand4[GET_PLANE(data, 0)]; |
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277 v |= expand4[GET_PLANE(data, 1)] << 1; |
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278 v |= expand4[GET_PLANE(data, 2)] << 2; |
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279 v |= expand4[GET_PLANE(data, 3)] << 3; |
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280 PUT_PIXEL2(d, 0, palette[v >> 28]); |
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281 PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]); |
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282 PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]); |
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283 PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]); |
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284 PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]); |
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285 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]); |
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286 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]); |
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287 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]); |
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288 d += BPP * 16; |
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289 s += 4; |
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290 } |
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291 } |
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292 |
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293 /* |
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294 * 256 color mode, double pixels |
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295 * |
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296 * XXX: add plane_mask support (never used in standard VGA modes) |
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297 */ |
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298 static void glue(vga_draw_line8d2_, DEPTH)(VGAState *s1, uint8_t *d, |
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299 const uint8_t *s, int width) |
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300 { |
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301 uint32_t *palette; |
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302 int x; |
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303 |
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304 palette = s1->last_palette; |
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305 width >>= 3; |
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306 for(x = 0; x < width; x++) { |
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307 PUT_PIXEL2(d, 0, palette[s[0]]); |
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308 PUT_PIXEL2(d, 1, palette[s[1]]); |
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309 PUT_PIXEL2(d, 2, palette[s[2]]); |
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310 PUT_PIXEL2(d, 3, palette[s[3]]); |
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311 d += BPP * 8; |
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312 s += 4; |
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313 } |
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314 } |
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315 |
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316 /* |
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317 * standard 256 color mode |
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318 * |
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319 * XXX: add plane_mask support (never used in standard VGA modes) |
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320 */ |
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321 static void glue(vga_draw_line8_, DEPTH)(VGAState *s1, uint8_t *d, |
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322 const uint8_t *s, int width) |
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323 { |
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324 uint32_t *palette; |
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325 int x; |
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326 |
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327 palette = s1->last_palette; |
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328 width >>= 3; |
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329 for(x = 0; x < width; x++) { |
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330 ((PIXEL_TYPE *)d)[0] = palette[s[0]]; |
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331 ((PIXEL_TYPE *)d)[1] = palette[s[1]]; |
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332 ((PIXEL_TYPE *)d)[2] = palette[s[2]]; |
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333 ((PIXEL_TYPE *)d)[3] = palette[s[3]]; |
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334 ((PIXEL_TYPE *)d)[4] = palette[s[4]]; |
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335 ((PIXEL_TYPE *)d)[5] = palette[s[5]]; |
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336 ((PIXEL_TYPE *)d)[6] = palette[s[6]]; |
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337 ((PIXEL_TYPE *)d)[7] = palette[s[7]]; |
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338 d += BPP * 8; |
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339 s += 8; |
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340 } |
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341 } |
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342 |
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343 void glue(vga_draw_cursor_line_, DEPTH)(uint8_t *d1, |
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344 const uint8_t *src1, |
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345 int poffset, int w, |
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346 unsigned int color0, |
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347 unsigned int color1, |
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348 unsigned int color_xor) |
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349 { |
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350 const uint8_t *plane0, *plane1; |
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351 int x, b0, b1; |
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352 uint8_t *d; |
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353 |
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354 d = d1; |
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355 plane0 = src1; |
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356 plane1 = src1 + poffset; |
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357 for(x = 0; x < w; x++) { |
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358 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1; |
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359 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1; |
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360 #if DEPTH == 8 |
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361 switch(b0 | (b1 << 1)) { |
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362 case 0: |
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363 break; |
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364 case 1: |
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365 d[0] ^= color_xor; |
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366 break; |
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367 case 2: |
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368 d[0] = color0; |
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369 break; |
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370 case 3: |
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371 d[0] = color1; |
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372 break; |
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373 } |
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374 #elif DEPTH == 16 |
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375 switch(b0 | (b1 << 1)) { |
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376 case 0: |
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377 break; |
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378 case 1: |
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379 ((uint16_t *)d)[0] ^= color_xor; |
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380 break; |
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381 case 2: |
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382 ((uint16_t *)d)[0] = color0; |
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383 break; |
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384 case 3: |
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385 ((uint16_t *)d)[0] = color1; |
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386 break; |
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387 } |
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388 #elif DEPTH == 32 |
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389 switch(b0 | (b1 << 1)) { |
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390 case 0: |
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391 break; |
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392 case 1: |
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393 ((uint32_t *)d)[0] ^= color_xor; |
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394 break; |
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395 case 2: |
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396 ((uint32_t *)d)[0] = color0; |
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397 break; |
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398 case 3: |
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399 ((uint32_t *)d)[0] = color1; |
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400 break; |
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401 } |
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402 #else |
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403 #error unsupported depth |
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404 #endif |
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405 d += BPP; |
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406 } |
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407 } |
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408 |
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409 #endif /* DEPTH != 15 */ |
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410 |
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411 |
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412 /* XXX: optimize */ |
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413 |
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414 /* |
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415 * 15 bit color |
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416 */ |
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417 static void glue(vga_draw_line15_, PIXEL_NAME)(VGAState *s1, uint8_t *d, |
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418 const uint8_t *s, int width) |
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419 { |
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420 #if DEPTH == 15 && defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) |
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421 memcpy(d, s, width * 2); |
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422 #else |
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423 int w; |
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424 uint32_t v, r, g, b; |
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425 |
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426 w = width; |
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427 do { |
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428 v = lduw_raw((void *)s); |
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429 r = (v >> 7) & 0xf8; |
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430 g = (v >> 2) & 0xf8; |
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431 b = (v << 3) & 0xf8; |
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432 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b); |
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433 s += 2; |
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434 d += BPP; |
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435 } while (--w != 0); |
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436 #endif |
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437 } |
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438 |
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439 /* |
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440 * 16 bit color |
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441 */ |
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442 static void glue(vga_draw_line16_, PIXEL_NAME)(VGAState *s1, uint8_t *d, |
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443 const uint8_t *s, int width) |
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444 { |
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445 #if DEPTH == 16 && defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) |
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446 memcpy(d, s, width * 2); |
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447 #else |
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448 int w; |
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449 uint32_t v, r, g, b; |
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450 |
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451 w = width; |
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452 do { |
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453 v = lduw_raw((void *)s); |
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454 r = (v >> 8) & 0xf8; |
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455 g = (v >> 3) & 0xfc; |
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456 b = (v << 3) & 0xf8; |
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457 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b); |
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458 s += 2; |
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459 d += BPP; |
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460 } while (--w != 0); |
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461 #endif |
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462 } |
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463 |
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464 /* |
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465 * 24 bit color |
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466 */ |
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467 static void glue(vga_draw_line24_, PIXEL_NAME)(VGAState *s1, uint8_t *d, |
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468 const uint8_t *s, int width) |
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469 { |
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470 int w; |
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471 uint32_t r, g, b; |
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472 |
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473 w = width; |
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474 do { |
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475 #if defined(TARGET_WORDS_BIGENDIAN) |
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476 r = s[0]; |
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477 g = s[1]; |
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478 b = s[2]; |
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479 #else |
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480 b = s[0]; |
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481 g = s[1]; |
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482 r = s[2]; |
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483 #endif |
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484 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b); |
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485 s += 3; |
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486 d += BPP; |
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487 } while (--w != 0); |
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488 } |
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489 |
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490 /* |
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491 * 32 bit color |
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492 */ |
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493 static void glue(vga_draw_line32_, PIXEL_NAME)(VGAState *s1, uint8_t *d, |
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494 const uint8_t *s, int width) |
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495 { |
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496 #if DEPTH == 32 && defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) && !defined(BGR_FORMAT) |
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497 memcpy(d, s, width * 4); |
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498 #else |
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499 int w; |
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500 uint32_t r, g, b; |
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501 |
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502 w = width; |
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503 do { |
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504 #if defined(TARGET_WORDS_BIGENDIAN) |
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505 r = s[1]; |
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506 g = s[2]; |
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507 b = s[3]; |
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508 #else |
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509 b = s[0]; |
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510 g = s[1]; |
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511 r = s[2]; |
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512 #endif |
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513 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b); |
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514 s += 4; |
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515 d += BPP; |
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516 } while (--w != 0); |
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517 #endif |
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518 } |
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519 |
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520 #undef PUT_PIXEL2 |
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521 #undef DEPTH |
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522 #undef BPP |
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523 #undef PIXEL_TYPE |
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524 #undef PIXEL_NAME |
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525 #undef BGR_FORMAT |