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1 /* |
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2 * QEMU internal VGA defines. |
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3 * |
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4 * Copyright (c) 2003-2004 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 #define MSR_COLOR_EMULATION 0x01 |
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25 #define MSR_PAGE_SELECT 0x20 |
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26 |
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27 #define ST01_V_RETRACE 0x08 |
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28 #define ST01_DISP_ENABLE 0x01 |
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29 |
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30 /* bochs VBE support */ |
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31 #define CONFIG_BOCHS_VBE |
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32 |
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33 #define VBE_DISPI_MAX_XRES 1600 |
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34 #define VBE_DISPI_MAX_YRES 1200 |
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35 #define VBE_DISPI_MAX_BPP 32 |
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36 |
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37 #define VBE_DISPI_INDEX_ID 0x0 |
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38 #define VBE_DISPI_INDEX_XRES 0x1 |
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39 #define VBE_DISPI_INDEX_YRES 0x2 |
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40 #define VBE_DISPI_INDEX_BPP 0x3 |
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41 #define VBE_DISPI_INDEX_ENABLE 0x4 |
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42 #define VBE_DISPI_INDEX_BANK 0x5 |
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43 #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6 |
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44 #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7 |
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45 #define VBE_DISPI_INDEX_X_OFFSET 0x8 |
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46 #define VBE_DISPI_INDEX_Y_OFFSET 0x9 |
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47 #define VBE_DISPI_INDEX_NB 0xa |
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48 |
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49 #define VBE_DISPI_ID0 0xB0C0 |
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50 #define VBE_DISPI_ID1 0xB0C1 |
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51 #define VBE_DISPI_ID2 0xB0C2 |
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52 #define VBE_DISPI_ID3 0xB0C3 |
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53 #define VBE_DISPI_ID4 0xB0C4 |
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54 |
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55 #define VBE_DISPI_DISABLED 0x00 |
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56 #define VBE_DISPI_ENABLED 0x01 |
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57 #define VBE_DISPI_GETCAPS 0x02 |
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58 #define VBE_DISPI_8BIT_DAC 0x20 |
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59 #define VBE_DISPI_LFB_ENABLED 0x40 |
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60 #define VBE_DISPI_NOCLEARMEM 0x80 |
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61 |
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62 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000 |
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63 |
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64 #ifdef CONFIG_BOCHS_VBE |
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65 |
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66 #define VGA_STATE_COMMON_BOCHS_VBE \ |
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67 uint16_t vbe_index; \ |
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68 uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; \ |
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69 uint32_t vbe_start_addr; \ |
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70 uint32_t vbe_line_offset; \ |
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71 uint32_t vbe_bank_mask; |
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72 |
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73 #else |
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74 |
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75 #define VGA_STATE_COMMON_BOCHS_VBE |
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76 |
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77 #endif /* !CONFIG_BOCHS_VBE */ |
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78 |
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79 #define CH_ATTR_SIZE (160 * 100) |
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80 #define VGA_MAX_HEIGHT 2048 |
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81 |
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82 struct vga_precise_retrace { |
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83 int64_t ticks_per_char; |
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84 int64_t total_chars; |
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85 int htotal; |
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86 int hstart; |
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87 int hend; |
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88 int vstart; |
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89 int vend; |
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90 int freq; |
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91 }; |
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92 |
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93 union vga_retrace { |
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94 struct vga_precise_retrace precise; |
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95 }; |
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96 |
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97 struct VGAState; |
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98 typedef uint8_t (* vga_retrace_fn)(struct VGAState *s); |
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99 typedef void (* vga_update_retrace_info_fn)(struct VGAState *s); |
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100 |
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101 #define VGA_STATE_COMMON \ |
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102 uint8_t *vram_ptr; \ |
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103 ram_addr_t vram_offset; \ |
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104 unsigned int vram_size; \ |
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105 uint32_t lfb_addr; \ |
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106 uint32_t lfb_end; \ |
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107 uint32_t map_addr; \ |
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108 uint32_t map_end; \ |
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109 uint32_t lfb_vram_mapped; /* whether 0xa0000 is mapped as ram */ \ |
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110 unsigned long bios_offset; \ |
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111 unsigned int bios_size; \ |
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112 int it_shift; \ |
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113 PCIDevice *pci_dev; \ |
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114 uint32_t latch; \ |
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115 uint8_t sr_index; \ |
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116 uint8_t sr[256]; \ |
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117 uint8_t gr_index; \ |
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118 uint8_t gr[256]; \ |
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119 uint8_t ar_index; \ |
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120 uint8_t ar[21]; \ |
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121 int ar_flip_flop; \ |
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122 uint8_t cr_index; \ |
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123 uint8_t cr[256]; /* CRT registers */ \ |
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124 uint8_t msr; /* Misc Output Register */ \ |
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125 uint8_t fcr; /* Feature Control Register */ \ |
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126 uint8_t st00; /* status 0 */ \ |
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127 uint8_t st01; /* status 1 */ \ |
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128 uint8_t dac_state; \ |
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129 uint8_t dac_sub_index; \ |
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130 uint8_t dac_read_index; \ |
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131 uint8_t dac_write_index; \ |
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132 uint8_t dac_cache[3]; /* used when writing */ \ |
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133 int dac_8bit; \ |
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134 uint8_t palette[768]; \ |
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135 int32_t bank_offset; \ |
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136 int vga_io_memory; \ |
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137 int (*get_bpp)(struct VGAState *s); \ |
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138 void (*get_offsets)(struct VGAState *s, \ |
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139 uint32_t *pline_offset, \ |
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140 uint32_t *pstart_addr, \ |
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141 uint32_t *pline_compare); \ |
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142 void (*get_resolution)(struct VGAState *s, \ |
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143 int *pwidth, \ |
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144 int *pheight); \ |
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145 VGA_STATE_COMMON_BOCHS_VBE \ |
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146 /* display refresh support */ \ |
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147 DisplayState *ds; \ |
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148 uint32_t font_offsets[2]; \ |
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149 int graphic_mode; \ |
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150 uint8_t shift_control; \ |
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151 uint8_t double_scan; \ |
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152 uint32_t line_offset; \ |
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153 uint32_t line_compare; \ |
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154 uint32_t start_addr; \ |
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155 uint32_t plane_updated; \ |
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156 uint8_t last_cw, last_ch; \ |
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157 uint32_t last_width, last_height; /* in chars or pixels */ \ |
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158 uint32_t last_scr_width, last_scr_height; /* in pixels */ \ |
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159 uint8_t cursor_start, cursor_end; \ |
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160 uint32_t cursor_offset; \ |
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161 unsigned int (*rgb_to_pixel)(unsigned int r, \ |
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162 unsigned int g, unsigned b); \ |
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163 vga_hw_update_ptr update; \ |
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164 vga_hw_invalidate_ptr invalidate; \ |
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165 vga_hw_screen_dump_ptr screen_dump; \ |
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166 vga_hw_text_update_ptr text_update; \ |
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167 /* hardware mouse cursor support */ \ |
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168 uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; \ |
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169 void (*cursor_invalidate)(struct VGAState *s); \ |
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170 void (*cursor_draw_line)(struct VGAState *s, uint8_t *d, int y); \ |
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171 /* tell for each page if it has been updated since the last time */ \ |
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172 uint32_t last_palette[256]; \ |
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173 uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ \ |
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174 /* retrace */ \ |
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175 vga_retrace_fn retrace; \ |
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176 vga_update_retrace_info_fn update_retrace_info; \ |
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177 union vga_retrace retrace_info; |
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178 |
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179 |
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180 typedef struct VGAState { |
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181 VGA_STATE_COMMON |
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182 } VGAState; |
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183 |
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184 static inline int c6_to_8(int v) |
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185 { |
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186 int b; |
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187 v &= 0x3f; |
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188 b = v & 1; |
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189 return (v << 2) | (b << 1) | b; |
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190 } |
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191 |
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192 void vga_common_init(VGAState *s, /*DisplayState *ds, */uint8_t *vga_ram_base, |
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193 ram_addr_t vga_ram_offset, int vga_ram_size); |
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194 void vga_init(VGAState *s); |
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195 |
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196 void vga_dirty_log_start(VGAState *s); |
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197 void vga_dirty_log_stop(VGAState *s); |
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198 |
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199 uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr); |
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200 void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val); |
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201 void vga_invalidate_scanlines(VGAState *s, int y1, int y2); |
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202 int ppm_save(const char *filename, uint8_t *data, |
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203 int w, int h, int linesize); |
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204 |
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205 void vga_draw_cursor_line_8(uint8_t *d1, const uint8_t *src1, |
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206 int poffset, int w, |
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207 unsigned int color0, unsigned int color1, |
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208 unsigned int color_xor); |
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209 void vga_draw_cursor_line_16(uint8_t *d1, const uint8_t *src1, |
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210 int poffset, int w, |
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211 unsigned int color0, unsigned int color1, |
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212 unsigned int color_xor); |
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213 void vga_draw_cursor_line_32(uint8_t *d1, const uint8_t *src1, |
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214 int poffset, int w, |
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215 unsigned int color0, unsigned int color1, |
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216 unsigned int color_xor); |
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217 |
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218 extern const uint8_t sr_mask[8]; |
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219 extern const uint8_t gr_mask[16]; |