📄 vga_int.h
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/* * QEMU internal VGA defines. * * Copyright (c) 2003-2004 Fabrice Bellard * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */#define MSR_COLOR_EMULATION 0x01#define MSR_PAGE_SELECT 0x20#define ST01_V_RETRACE 0x08#define ST01_DISP_ENABLE 0x01/* bochs VBE support *///#define CONFIG_BOCHS_VBE#define VBE_DISPI_MAX_XRES 1600#define VBE_DISPI_MAX_YRES 1200#define VBE_DISPI_MAX_BPP 32#define VBE_DISPI_INDEX_ID 0x0#define VBE_DISPI_INDEX_XRES 0x1#define VBE_DISPI_INDEX_YRES 0x2#define VBE_DISPI_INDEX_BPP 0x3#define VBE_DISPI_INDEX_ENABLE 0x4#define VBE_DISPI_INDEX_BANK 0x5#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7#define VBE_DISPI_INDEX_X_OFFSET 0x8#define VBE_DISPI_INDEX_Y_OFFSET 0x9#define VBE_DISPI_INDEX_NB 0xa #define VBE_DISPI_ID0 0xB0C0#define VBE_DISPI_ID1 0xB0C1#define VBE_DISPI_ID2 0xB0C2#define VBE_DISPI_ID3 0xB0C3#define VBE_DISPI_ID4 0xB0C4 #define VBE_DISPI_DISABLED 0x00#define VBE_DISPI_ENABLED 0x01#define VBE_DISPI_GETCAPS 0x02#define VBE_DISPI_8BIT_DAC 0x20#define VBE_DISPI_LFB_ENABLED 0x40#define VBE_DISPI_NOCLEARMEM 0x80 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000#ifdef CONFIG_BOCHS_VBE#define VGA_STATE_COMMON_BOCHS_VBE \ uint16_t vbe_index; \ uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; \ uint32_t vbe_start_addr; \ uint32_t vbe_line_offset; \ uint32_t vbe_bank_mask;#else#define VGA_STATE_COMMON_BOCHS_VBE#endif /* !CONFIG_BOCHS_VBE */#define CH_ATTR_SIZE (160 * 100)#define VGA_MAX_HEIGHT 2048#define VGA_STATE_COMMON \ uint8_t *vram_alloc; \ uint8_t *vram_ptr; \ uint8_t *vram_shadow; \ unsigned long vram_offset; \ unsigned int vram_size; \ unsigned long bios_offset; \ unsigned int bios_size; \ unsigned long lfb_addr; \ unsigned long lfb_end; \ PCIDevice *pci_dev; \ uint32_t latch; \ uint8_t sr_index; \ uint8_t sr[256]; \ uint8_t gr_index; \ uint8_t gr[256]; \ uint8_t ar_index; \ uint8_t ar[21]; \ int ar_flip_flop; \ uint8_t cr_index; \ uint8_t cr[256]; /* CRT registers */ \ uint8_t msr; /* Misc Output Register */ \ uint8_t fcr; /* Feature Control Register */ \ uint8_t st00; /* status 0 */ \ uint8_t st01; /* status 1 */ \ uint8_t dac_state; \ uint8_t dac_sub_index; \ uint8_t dac_read_index; \ uint8_t dac_write_index; \ uint8_t dac_cache[3]; /* used when writing */ \ int dac_8bit; \ uint8_t palette[768]; \ int32_t bank_offset; \ int (*get_bpp)(struct VGAState *s); \ void (*get_offsets)(struct VGAState *s, \ uint32_t *pline_offset, \ uint32_t *pstart_addr, \ uint32_t *pline_compare); \ void (*get_resolution)(struct VGAState *s, \ int *pwidth, \ int *pheight); \ VGA_STATE_COMMON_BOCHS_VBE \ /* display refresh support */ \ DisplayState *ds; \ uint32_t font_offsets[2]; \ int graphic_mode; \ uint8_t shift_control; \ uint8_t double_scan; \ uint32_t line_offset; \ uint32_t line_compare; \ uint32_t start_addr; \ uint32_t plane_updated; \ uint32_t last_line_offset; \ uint8_t last_cw, last_ch; \ uint32_t last_width, last_height; /* in chars or pixels */ \ uint32_t last_scr_width, last_scr_height; /* in pixels */ \ uint32_t last_depth; /* in bits */ \ uint8_t cursor_start, cursor_end; \ uint32_t cursor_offset; \ unsigned int (*rgb_to_pixel)(unsigned int r, \ unsigned int g, unsigned b); \ /* hardware mouse cursor support */ \ uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; \ void (*cursor_invalidate)(struct VGAState *s); \ void (*cursor_draw_line)(struct VGAState *s, uint8_t *d, int y); \ /* tell for each page if it has been updated since the last time */ \ uint32_t last_palette[256]; \ uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */typedef struct VGAState { VGA_STATE_COMMON} VGAState;static inline int c6_to_8(int v){ int b; v &= 0x3f; b = v & 1; return (v << 2) | (b << 1) | b;}void vga_common_init(VGAState *s, DisplayState *ds, uint8_t *vga_ram_base, unsigned long vga_ram_offset, int vga_ram_size);uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr);void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val);void vga_invalidate_scanlines(VGAState *s, int y1, int y2);void vga_draw_cursor_line_8(uint8_t *d1, const uint8_t *src1, int poffset, int w, unsigned int color0, unsigned int color1, unsigned int color_xor);void vga_draw_cursor_line_16(uint8_t *d1, const uint8_t *src1, int poffset, int w, unsigned int color0, unsigned int color1, unsigned int color_xor);void vga_draw_cursor_line_32(uint8_t *d1, const uint8_t *src1, int poffset, int w, unsigned int color0, unsigned int color1, unsigned int color_xor);void *vga_update_vram(VGAState *s, void *vga_ram_base, int vga_ram_size);extern const uint8_t sr_mask[8];extern const uint8_t gr_mask[16];⌨️ 快捷键说明
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