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/*
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* QEMU VGA Emulator.
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/hw.h" |
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#include "vga.h" |
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#include "ui/console.h" |
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#include "hw/i386/pc.h" |
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#include "hw/pci/pci.h" |
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#include "vga_int.h" |
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#include "ui/pixel_ops.h" |
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#include "qemu/timer.h" |
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#include "hw/xen/xen.h" |
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#include "trace.h" |
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//#define DEBUG_VGA
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//#define DEBUG_VGA_MEM
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//#define DEBUG_VGA_REG
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//#define DEBUG_BOCHS_VBE
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/* 16 state changes per vertical frame @60 Hz */
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#define VGA_TEXT_CURSOR_PERIOD_MS (1000 * 2 * 16 / 60) |
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/*
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* Video Graphics Array (VGA)
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*
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* Chipset docs for original IBM VGA:
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* http://www.mcamafia.de/pdf/ibm_vgaxga_trm2.pdf
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*
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* FreeVGA site:
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* http://www.osdever.net/FreeVGA/home.htm
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*
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* Standard VGA features and Bochs VBE extensions are implemented.
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*/
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|
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/* force some bits to zero */
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const uint8_t sr_mask[8] = { |
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0x03,
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0x3d,
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0x0f,
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0x3f,
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0x0e,
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0x00,
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0x00,
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0xff,
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}; |
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const uint8_t gr_mask[16] = { |
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0x0f, /* 0x00 */ |
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0x0f, /* 0x01 */ |
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0x0f, /* 0x02 */ |
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0x1f, /* 0x03 */ |
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0x03, /* 0x04 */ |
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0x7b, /* 0x05 */ |
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0x0f, /* 0x06 */ |
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0x0f, /* 0x07 */ |
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0xff, /* 0x08 */ |
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0x00, /* 0x09 */ |
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0x00, /* 0x0a */ |
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0x00, /* 0x0b */ |
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0x00, /* 0x0c */ |
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0x00, /* 0x0d */ |
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0x00, /* 0x0e */ |
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0x00, /* 0x0f */ |
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}; |
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#define cbswap_32(__x) \
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((uint32_t)( \ |
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(((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \ |
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(((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \ |
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(((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \ |
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(((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )) |
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#ifdef HOST_WORDS_BIGENDIAN
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#define PAT(x) cbswap_32(x)
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#else
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#define PAT(x) (x)
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#endif
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#ifdef HOST_WORDS_BIGENDIAN
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#define BIG 1 |
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#else
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#define BIG 0 |
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#endif
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#ifdef HOST_WORDS_BIGENDIAN
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#define GET_PLANE(data, p) (((data) >> (24 - (p) * 8)) & 0xff) |
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#else
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#define GET_PLANE(data, p) (((data) >> ((p) * 8)) & 0xff) |
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#endif
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static const uint32_t mask16[16] = { |
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PAT(0x00000000),
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PAT(0x000000ff),
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PAT(0x0000ff00),
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PAT(0x0000ffff),
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PAT(0x00ff0000),
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PAT(0x00ff00ff),
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PAT(0x00ffff00),
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PAT(0x00ffffff),
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PAT(0xff000000),
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PAT(0xff0000ff),
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PAT(0xff00ff00),
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PAT(0xff00ffff),
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PAT(0xffff0000),
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PAT(0xffff00ff),
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PAT(0xffffff00),
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PAT(0xffffffff),
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}; |
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#undef PAT
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#ifdef HOST_WORDS_BIGENDIAN
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#define PAT(x) (x)
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#else
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#define PAT(x) cbswap_32(x)
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#endif
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static const uint32_t dmask16[16] = { |
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PAT(0x00000000),
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PAT(0x000000ff),
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PAT(0x0000ff00),
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PAT(0x0000ffff),
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PAT(0x00ff0000),
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PAT(0x00ff00ff),
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PAT(0x00ffff00),
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PAT(0x00ffffff),
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PAT(0xff000000),
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PAT(0xff0000ff),
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PAT(0xff00ff00),
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PAT(0xff00ffff),
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PAT(0xffff0000),
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PAT(0xffff00ff),
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PAT(0xffffff00),
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PAT(0xffffffff),
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}; |
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static const uint32_t dmask4[4] = { |
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PAT(0x00000000),
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PAT(0x0000ffff),
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PAT(0xffff0000),
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PAT(0xffffffff),
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}; |
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static uint32_t expand4[256]; |
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static uint16_t expand2[256]; |
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static uint8_t expand4to8[16]; |
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static void vga_update_memory_access(VGACommonState *s) |
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{ |
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MemoryRegion *region, *old_region = s->chain4_alias; |
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hwaddr base, offset, size; |
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s->chain4_alias = NULL;
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if ((s->sr[VGA_SEQ_PLANE_WRITE] & VGA_SR02_ALL_PLANES) ==
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VGA_SR02_ALL_PLANES && s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) { |
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offset = 0;
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switch ((s->gr[VGA_GFX_MISC] >> 2) & 3) { |
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case 0: |
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base = 0xa0000;
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size = 0x20000;
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break;
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case 1: |
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base = 0xa0000;
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size = 0x10000;
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offset = s->bank_offset; |
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break;
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case 2: |
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base = 0xb0000;
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size = 0x8000;
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break;
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case 3: |
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default:
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base = 0xb8000;
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size = 0x8000;
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break;
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} |
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base += isa_mem_base; |
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region = g_malloc(sizeof(*region));
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memory_region_init_alias(region, memory_region_owner(&s->vram), |
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"vga.chain4", &s->vram, offset, size);
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memory_region_add_subregion_overlap(s->legacy_address_space, base, |
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region, 2);
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s->chain4_alias = region; |
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} |
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if (old_region) {
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memory_region_del_subregion(s->legacy_address_space, old_region); |
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memory_region_destroy(old_region); |
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g_free(old_region); |
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s->plane_updated = 0xf;
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} |
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} |
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static void vga_dumb_update_retrace_info(VGACommonState *s) |
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{ |
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(void) s;
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} |
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static void vga_precise_update_retrace_info(VGACommonState *s) |
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{ |
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int htotal_chars;
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int hretr_start_char;
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int hretr_skew_chars;
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int hretr_end_char;
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int vtotal_lines;
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int vretr_start_line;
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int vretr_end_line;
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int dots;
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#if 0
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int div2, sldiv2;
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#endif
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int clocking_mode;
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int clock_sel;
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const int clk_hz[] = {25175000, 28322000, 25175000, 25175000}; |
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int64_t chars_per_sec; |
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struct vga_precise_retrace *r = &s->retrace_info.precise;
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htotal_chars = s->cr[VGA_CRTC_H_TOTAL] + 5;
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hretr_start_char = s->cr[VGA_CRTC_H_SYNC_START]; |
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hretr_skew_chars = (s->cr[VGA_CRTC_H_SYNC_END] >> 5) & 3; |
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hretr_end_char = s->cr[VGA_CRTC_H_SYNC_END] & 0x1f;
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vtotal_lines = (s->cr[VGA_CRTC_V_TOTAL] | |
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(((s->cr[VGA_CRTC_OVERFLOW] & 1) |
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((s->cr[VGA_CRTC_OVERFLOW] >> 4) & 2)) << 8)) + 2; |
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vretr_start_line = s->cr[VGA_CRTC_V_SYNC_START] | |
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((((s->cr[VGA_CRTC_OVERFLOW] >> 2) & 1) | |
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((s->cr[VGA_CRTC_OVERFLOW] >> 6) & 2)) << 8); |
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vretr_end_line = s->cr[VGA_CRTC_V_SYNC_END] & 0xf;
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clocking_mode = (s->sr[VGA_SEQ_CLOCK_MODE] >> 3) & 1; |
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clock_sel = (s->msr >> 2) & 3; |
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dots = (s->msr & 1) ? 8 : 9; |
257 |
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chars_per_sec = clk_hz[clock_sel] / dots; |
259 |
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htotal_chars <<= clocking_mode; |
261 |
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r->total_chars = vtotal_lines * htotal_chars; |
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if (r->freq) {
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r->ticks_per_char = get_ticks_per_sec() / (r->total_chars * r->freq); |
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} else {
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r->ticks_per_char = get_ticks_per_sec() / chars_per_sec; |
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} |
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r->vstart = vretr_start_line; |
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r->vend = r->vstart + vretr_end_line + 1;
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r->hstart = hretr_start_char + hretr_skew_chars; |
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r->hend = r->hstart + hretr_end_char + 1;
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r->htotal = htotal_chars; |
275 |
|
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#if 0
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div2 = (s->cr[VGA_CRTC_MODE] >> 2) & 1;
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sldiv2 = (s->cr[VGA_CRTC_MODE] >> 3) & 1;
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printf (
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"hz=%f\n"
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"htotal = %d\n"
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"hretr_start = %d\n"
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"hretr_skew = %d\n"
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"hretr_end = %d\n"
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"vtotal = %d\n"
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"vretr_start = %d\n"
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"vretr_end = %d\n"
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"div2 = %d sldiv2 = %d\n"
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"clocking_mode = %d\n"
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"clock_sel = %d %d\n"
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"dots = %d\n"
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"ticks/char = %" PRId64 "\n"
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"\n",
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(double) get_ticks_per_sec() / (r->ticks_per_char * r->total_chars),
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htotal_chars,
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hretr_start_char,
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hretr_skew_chars,
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hretr_end_char,
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vtotal_lines,
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vretr_start_line,
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vretr_end_line,
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div2, sldiv2,
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clocking_mode,
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clock_sel,
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clk_hz[clock_sel],
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dots,
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r->ticks_per_char
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);
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#endif
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} |
311 |
|
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static uint8_t vga_precise_retrace(VGACommonState *s)
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{ |
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struct vga_precise_retrace *r = &s->retrace_info.precise;
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uint8_t val = s->st01 & ~(ST01_V_RETRACE | ST01_DISP_ENABLE); |
316 |
|
317 |
if (r->total_chars) {
|
318 |
int cur_line, cur_line_char, cur_char;
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int64_t cur_tick; |
320 |
|
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cur_tick = qemu_get_clock_ns(vm_clock); |
322 |
|
323 |
cur_char = (cur_tick / r->ticks_per_char) % r->total_chars; |
324 |
cur_line = cur_char / r->htotal; |
325 |
|
326 |
if (cur_line >= r->vstart && cur_line <= r->vend) {
|
327 |
val |= ST01_V_RETRACE | ST01_DISP_ENABLE; |
328 |
} else {
|
329 |
cur_line_char = cur_char % r->htotal; |
330 |
if (cur_line_char >= r->hstart && cur_line_char <= r->hend) {
|
331 |
val |= ST01_DISP_ENABLE; |
332 |
} |
333 |
} |
334 |
|
335 |
return val;
|
336 |
} else {
|
337 |
return s->st01 ^ (ST01_V_RETRACE | ST01_DISP_ENABLE);
|
338 |
} |
339 |
} |
340 |
|
341 |
static uint8_t vga_dumb_retrace(VGACommonState *s)
|
342 |
{ |
343 |
return s->st01 ^ (ST01_V_RETRACE | ST01_DISP_ENABLE);
|
344 |
} |
345 |
|
346 |
int vga_ioport_invalid(VGACommonState *s, uint32_t addr)
|
347 |
{ |
348 |
if (s->msr & VGA_MIS_COLOR) {
|
349 |
/* Color */
|
350 |
return (addr >= 0x3b0 && addr <= 0x3bf); |
351 |
} else {
|
352 |
/* Monochrome */
|
353 |
return (addr >= 0x3d0 && addr <= 0x3df); |
354 |
} |
355 |
} |
356 |
|
357 |
uint32_t vga_ioport_read(void *opaque, uint32_t addr)
|
358 |
{ |
359 |
VGACommonState *s = opaque; |
360 |
int val, index;
|
361 |
|
362 |
qemu_flush_coalesced_mmio_buffer(); |
363 |
|
364 |
if (vga_ioport_invalid(s, addr)) {
|
365 |
val = 0xff;
|
366 |
} else {
|
367 |
switch(addr) {
|
368 |
case VGA_ATT_W:
|
369 |
if (s->ar_flip_flop == 0) { |
370 |
val = s->ar_index; |
371 |
} else {
|
372 |
val = 0;
|
373 |
} |
374 |
break;
|
375 |
case VGA_ATT_R:
|
376 |
index = s->ar_index & 0x1f;
|
377 |
if (index < VGA_ATT_C) {
|
378 |
val = s->ar[index]; |
379 |
} else {
|
380 |
val = 0;
|
381 |
} |
382 |
break;
|
383 |
case VGA_MIS_W:
|
384 |
val = s->st00; |
385 |
break;
|
386 |
case VGA_SEQ_I:
|
387 |
val = s->sr_index; |
388 |
break;
|
389 |
case VGA_SEQ_D:
|
390 |
val = s->sr[s->sr_index]; |
391 |
#ifdef DEBUG_VGA_REG
|
392 |
printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
|
393 |
#endif
|
394 |
break;
|
395 |
case VGA_PEL_IR:
|
396 |
val = s->dac_state; |
397 |
break;
|
398 |
case VGA_PEL_IW:
|
399 |
val = s->dac_write_index; |
400 |
break;
|
401 |
case VGA_PEL_D:
|
402 |
val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];
|
403 |
if (++s->dac_sub_index == 3) { |
404 |
s->dac_sub_index = 0;
|
405 |
s->dac_read_index++; |
406 |
} |
407 |
break;
|
408 |
case VGA_FTC_R:
|
409 |
val = s->fcr; |
410 |
break;
|
411 |
case VGA_MIS_R:
|
412 |
val = s->msr; |
413 |
break;
|
414 |
case VGA_GFX_I:
|
415 |
val = s->gr_index; |
416 |
break;
|
417 |
case VGA_GFX_D:
|
418 |
val = s->gr[s->gr_index]; |
419 |
#ifdef DEBUG_VGA_REG
|
420 |
printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
|
421 |
#endif
|
422 |
break;
|
423 |
case VGA_CRT_IM:
|
424 |
case VGA_CRT_IC:
|
425 |
val = s->cr_index; |
426 |
break;
|
427 |
case VGA_CRT_DM:
|
428 |
case VGA_CRT_DC:
|
429 |
val = s->cr[s->cr_index]; |
430 |
#ifdef DEBUG_VGA_REG
|
431 |
printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
|
432 |
#endif
|
433 |
break;
|
434 |
case VGA_IS1_RM:
|
435 |
case VGA_IS1_RC:
|
436 |
/* just toggle to fool polling */
|
437 |
val = s->st01 = s->retrace(s); |
438 |
s->ar_flip_flop = 0;
|
439 |
break;
|
440 |
default:
|
441 |
val = 0x00;
|
442 |
break;
|
443 |
} |
444 |
} |
445 |
#if defined(DEBUG_VGA)
|
446 |
printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
|
447 |
#endif
|
448 |
return val;
|
449 |
} |
450 |
|
451 |
void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
452 |
{ |
453 |
VGACommonState *s = opaque; |
454 |
int index;
|
455 |
|
456 |
qemu_flush_coalesced_mmio_buffer(); |
457 |
|
458 |
/* check port range access depending on color/monochrome mode */
|
459 |
if (vga_ioport_invalid(s, addr)) {
|
460 |
return;
|
461 |
} |
462 |
#ifdef DEBUG_VGA
|
463 |
printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
|
464 |
#endif
|
465 |
|
466 |
switch(addr) {
|
467 |
case VGA_ATT_W:
|
468 |
if (s->ar_flip_flop == 0) { |
469 |
val &= 0x3f;
|
470 |
s->ar_index = val; |
471 |
} else {
|
472 |
index = s->ar_index & 0x1f;
|
473 |
switch(index) {
|
474 |
case VGA_ATC_PALETTE0 ... VGA_ATC_PALETTEF:
|
475 |
s->ar[index] = val & 0x3f;
|
476 |
break;
|
477 |
case VGA_ATC_MODE:
|
478 |
s->ar[index] = val & ~0x10;
|
479 |
break;
|
480 |
case VGA_ATC_OVERSCAN:
|
481 |
s->ar[index] = val; |
482 |
break;
|
483 |
case VGA_ATC_PLANE_ENABLE:
|
484 |
s->ar[index] = val & ~0xc0;
|
485 |
break;
|
486 |
case VGA_ATC_PEL:
|
487 |
s->ar[index] = val & ~0xf0;
|
488 |
break;
|
489 |
case VGA_ATC_COLOR_PAGE:
|
490 |
s->ar[index] = val & ~0xf0;
|
491 |
break;
|
492 |
default:
|
493 |
break;
|
494 |
} |
495 |
} |
496 |
s->ar_flip_flop ^= 1;
|
497 |
break;
|
498 |
case VGA_MIS_W:
|
499 |
s->msr = val & ~0x10;
|
500 |
s->update_retrace_info(s); |
501 |
break;
|
502 |
case VGA_SEQ_I:
|
503 |
s->sr_index = val & 7;
|
504 |
break;
|
505 |
case VGA_SEQ_D:
|
506 |
#ifdef DEBUG_VGA_REG
|
507 |
printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
|
508 |
#endif
|
509 |
s->sr[s->sr_index] = val & sr_mask[s->sr_index]; |
510 |
if (s->sr_index == VGA_SEQ_CLOCK_MODE) {
|
511 |
s->update_retrace_info(s); |
512 |
} |
513 |
vga_update_memory_access(s); |
514 |
break;
|
515 |
case VGA_PEL_IR:
|
516 |
s->dac_read_index = val; |
517 |
s->dac_sub_index = 0;
|
518 |
s->dac_state = 3;
|
519 |
break;
|
520 |
case VGA_PEL_IW:
|
521 |
s->dac_write_index = val; |
522 |
s->dac_sub_index = 0;
|
523 |
s->dac_state = 0;
|
524 |
break;
|
525 |
case VGA_PEL_D:
|
526 |
s->dac_cache[s->dac_sub_index] = val; |
527 |
if (++s->dac_sub_index == 3) { |
528 |
memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3); |
529 |
s->dac_sub_index = 0;
|
530 |
s->dac_write_index++; |
531 |
} |
532 |
break;
|
533 |
case VGA_GFX_I:
|
534 |
s->gr_index = val & 0x0f;
|
535 |
break;
|
536 |
case VGA_GFX_D:
|
537 |
#ifdef DEBUG_VGA_REG
|
538 |
printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
|
539 |
#endif
|
540 |
s->gr[s->gr_index] = val & gr_mask[s->gr_index]; |
541 |
vga_update_memory_access(s); |
542 |
break;
|
543 |
case VGA_CRT_IM:
|
544 |
case VGA_CRT_IC:
|
545 |
s->cr_index = val; |
546 |
break;
|
547 |
case VGA_CRT_DM:
|
548 |
case VGA_CRT_DC:
|
549 |
#ifdef DEBUG_VGA_REG
|
550 |
printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
|
551 |
#endif
|
552 |
/* handle CR0-7 protection */
|
553 |
if ((s->cr[VGA_CRTC_V_SYNC_END] & VGA_CR11_LOCK_CR0_CR7) &&
|
554 |
s->cr_index <= VGA_CRTC_OVERFLOW) { |
555 |
/* can always write bit 4 of CR7 */
|
556 |
if (s->cr_index == VGA_CRTC_OVERFLOW) {
|
557 |
s->cr[VGA_CRTC_OVERFLOW] = (s->cr[VGA_CRTC_OVERFLOW] & ~0x10) |
|
558 |
(val & 0x10);
|
559 |
} |
560 |
return;
|
561 |
} |
562 |
s->cr[s->cr_index] = val; |
563 |
|
564 |
switch(s->cr_index) {
|
565 |
case VGA_CRTC_H_TOTAL:
|
566 |
case VGA_CRTC_H_SYNC_START:
|
567 |
case VGA_CRTC_H_SYNC_END:
|
568 |
case VGA_CRTC_V_TOTAL:
|
569 |
case VGA_CRTC_OVERFLOW:
|
570 |
case VGA_CRTC_V_SYNC_END:
|
571 |
case VGA_CRTC_MODE:
|
572 |
s->update_retrace_info(s); |
573 |
break;
|
574 |
} |
575 |
break;
|
576 |
case VGA_IS1_RM:
|
577 |
case VGA_IS1_RC:
|
578 |
s->fcr = val & 0x10;
|
579 |
break;
|
580 |
} |
581 |
} |
582 |
|
583 |
static uint32_t vbe_ioport_read_index(void *opaque, uint32_t addr) |
584 |
{ |
585 |
VGACommonState *s = opaque; |
586 |
uint32_t val; |
587 |
val = s->vbe_index; |
588 |
return val;
|
589 |
} |
590 |
|
591 |
uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr)
|
592 |
{ |
593 |
VGACommonState *s = opaque; |
594 |
uint32_t val; |
595 |
|
596 |
if (s->vbe_index < VBE_DISPI_INDEX_NB) {
|
597 |
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_GETCAPS) {
|
598 |
switch(s->vbe_index) {
|
599 |
/* XXX: do not hardcode ? */
|
600 |
case VBE_DISPI_INDEX_XRES:
|
601 |
val = VBE_DISPI_MAX_XRES; |
602 |
break;
|
603 |
case VBE_DISPI_INDEX_YRES:
|
604 |
val = VBE_DISPI_MAX_YRES; |
605 |
break;
|
606 |
case VBE_DISPI_INDEX_BPP:
|
607 |
val = VBE_DISPI_MAX_BPP; |
608 |
break;
|
609 |
default:
|
610 |
val = s->vbe_regs[s->vbe_index]; |
611 |
break;
|
612 |
} |
613 |
} else {
|
614 |
val = s->vbe_regs[s->vbe_index]; |
615 |
} |
616 |
} else if (s->vbe_index == VBE_DISPI_INDEX_VIDEO_MEMORY_64K) { |
617 |
val = s->vram_size / (64 * 1024); |
618 |
} else {
|
619 |
val = 0;
|
620 |
} |
621 |
#ifdef DEBUG_BOCHS_VBE
|
622 |
printf("VBE: read index=0x%x val=0x%x\n", s->vbe_index, val);
|
623 |
#endif
|
624 |
return val;
|
625 |
} |
626 |
|
627 |
void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val) |
628 |
{ |
629 |
VGACommonState *s = opaque; |
630 |
s->vbe_index = val; |
631 |
} |
632 |
|
633 |
void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) |
634 |
{ |
635 |
VGACommonState *s = opaque; |
636 |
|
637 |
if (s->vbe_index <= VBE_DISPI_INDEX_NB) {
|
638 |
#ifdef DEBUG_BOCHS_VBE
|
639 |
printf("VBE: write index=0x%x val=0x%x\n", s->vbe_index, val);
|
640 |
#endif
|
641 |
switch(s->vbe_index) {
|
642 |
case VBE_DISPI_INDEX_ID:
|
643 |
if (val == VBE_DISPI_ID0 ||
|
644 |
val == VBE_DISPI_ID1 || |
645 |
val == VBE_DISPI_ID2 || |
646 |
val == VBE_DISPI_ID3 || |
647 |
val == VBE_DISPI_ID4) { |
648 |
s->vbe_regs[s->vbe_index] = val; |
649 |
} |
650 |
break;
|
651 |
case VBE_DISPI_INDEX_XRES:
|
652 |
if ((val <= VBE_DISPI_MAX_XRES) && ((val & 7) == 0)) { |
653 |
s->vbe_regs[s->vbe_index] = val; |
654 |
} |
655 |
break;
|
656 |
case VBE_DISPI_INDEX_YRES:
|
657 |
if (val <= VBE_DISPI_MAX_YRES) {
|
658 |
s->vbe_regs[s->vbe_index] = val; |
659 |
} |
660 |
break;
|
661 |
case VBE_DISPI_INDEX_BPP:
|
662 |
if (val == 0) |
663 |
val = 8;
|
664 |
if (val == 4 || val == 8 || val == 15 || |
665 |
val == 16 || val == 24 || val == 32) { |
666 |
s->vbe_regs[s->vbe_index] = val; |
667 |
} |
668 |
break;
|
669 |
case VBE_DISPI_INDEX_BANK:
|
670 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) { |
671 |
val &= (s->vbe_bank_mask >> 2);
|
672 |
} else {
|
673 |
val &= s->vbe_bank_mask; |
674 |
} |
675 |
s->vbe_regs[s->vbe_index] = val; |
676 |
s->bank_offset = (val << 16);
|
677 |
vga_update_memory_access(s); |
678 |
break;
|
679 |
case VBE_DISPI_INDEX_ENABLE:
|
680 |
if ((val & VBE_DISPI_ENABLED) &&
|
681 |
!(s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED)) { |
682 |
int h, shift_control;
|
683 |
|
684 |
s->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = |
685 |
s->vbe_regs[VBE_DISPI_INDEX_XRES]; |
686 |
s->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = |
687 |
s->vbe_regs[VBE_DISPI_INDEX_YRES]; |
688 |
s->vbe_regs[VBE_DISPI_INDEX_X_OFFSET] = 0;
|
689 |
s->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET] = 0;
|
690 |
|
691 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) |
692 |
s->vbe_line_offset = s->vbe_regs[VBE_DISPI_INDEX_XRES] >> 1;
|
693 |
else
|
694 |
s->vbe_line_offset = s->vbe_regs[VBE_DISPI_INDEX_XRES] * |
695 |
((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); |
696 |
s->vbe_start_addr = 0;
|
697 |
|
698 |
/* clear the screen (should be done in BIOS) */
|
699 |
if (!(val & VBE_DISPI_NOCLEARMEM)) {
|
700 |
memset(s->vram_ptr, 0,
|
701 |
s->vbe_regs[VBE_DISPI_INDEX_YRES] * s->vbe_line_offset); |
702 |
} |
703 |
|
704 |
/* we initialize the VGA graphic mode (should be done
|
705 |
in BIOS) */
|
706 |
/* graphic mode + memory map 1 */
|
707 |
s->gr[VGA_GFX_MISC] = (s->gr[VGA_GFX_MISC] & ~0x0c) | 0x04 | |
708 |
VGA_GR06_GRAPHICS_MODE; |
709 |
s->cr[VGA_CRTC_MODE] |= 3; /* no CGA modes */ |
710 |
s->cr[VGA_CRTC_OFFSET] = s->vbe_line_offset >> 3;
|
711 |
/* width */
|
712 |
s->cr[VGA_CRTC_H_DISP] = |
713 |
(s->vbe_regs[VBE_DISPI_INDEX_XRES] >> 3) - 1; |
714 |
/* height (only meaningful if < 1024) */
|
715 |
h = s->vbe_regs[VBE_DISPI_INDEX_YRES] - 1;
|
716 |
s->cr[VGA_CRTC_V_DISP_END] = h; |
717 |
s->cr[VGA_CRTC_OVERFLOW] = (s->cr[VGA_CRTC_OVERFLOW] & ~0x42) |
|
718 |
((h >> 7) & 0x02) | ((h >> 3) & 0x40); |
719 |
/* line compare to 1023 */
|
720 |
s->cr[VGA_CRTC_LINE_COMPARE] = 0xff;
|
721 |
s->cr[VGA_CRTC_OVERFLOW] |= 0x10;
|
722 |
s->cr[VGA_CRTC_MAX_SCAN] |= 0x40;
|
723 |
|
724 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) { |
725 |
shift_control = 0;
|
726 |
s->sr[VGA_SEQ_CLOCK_MODE] &= ~8; /* no double line */ |
727 |
} else {
|
728 |
shift_control = 2;
|
729 |
/* set chain 4 mode */
|
730 |
s->sr[VGA_SEQ_MEMORY_MODE] |= VGA_SR04_CHN_4M; |
731 |
/* activate all planes */
|
732 |
s->sr[VGA_SEQ_PLANE_WRITE] |= VGA_SR02_ALL_PLANES; |
733 |
} |
734 |
s->gr[VGA_GFX_MODE] = (s->gr[VGA_GFX_MODE] & ~0x60) |
|
735 |
(shift_control << 5);
|
736 |
s->cr[VGA_CRTC_MAX_SCAN] &= ~0x9f; /* no double scan */ |
737 |
} else {
|
738 |
/* XXX: the bios should do that */
|
739 |
s->bank_offset = 0;
|
740 |
} |
741 |
s->dac_8bit = (val & VBE_DISPI_8BIT_DAC) > 0;
|
742 |
s->vbe_regs[s->vbe_index] = val; |
743 |
vga_update_memory_access(s); |
744 |
break;
|
745 |
case VBE_DISPI_INDEX_VIRT_WIDTH:
|
746 |
{ |
747 |
int w, h, line_offset;
|
748 |
|
749 |
if (val < s->vbe_regs[VBE_DISPI_INDEX_XRES])
|
750 |
return;
|
751 |
w = val; |
752 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) |
753 |
line_offset = w >> 1;
|
754 |
else
|
755 |
line_offset = w * ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); |
756 |
h = s->vram_size / line_offset; |
757 |
/* XXX: support weird bochs semantics ? */
|
758 |
if (h < s->vbe_regs[VBE_DISPI_INDEX_YRES])
|
759 |
return;
|
760 |
s->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = w; |
761 |
s->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = h; |
762 |
s->vbe_line_offset = line_offset; |
763 |
} |
764 |
break;
|
765 |
case VBE_DISPI_INDEX_X_OFFSET:
|
766 |
case VBE_DISPI_INDEX_Y_OFFSET:
|
767 |
{ |
768 |
int x;
|
769 |
s->vbe_regs[s->vbe_index] = val; |
770 |
s->vbe_start_addr = s->vbe_line_offset * s->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET]; |
771 |
x = s->vbe_regs[VBE_DISPI_INDEX_X_OFFSET]; |
772 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) |
773 |
s->vbe_start_addr += x >> 1;
|
774 |
else
|
775 |
s->vbe_start_addr += x * ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); |
776 |
s->vbe_start_addr >>= 2;
|
777 |
} |
778 |
break;
|
779 |
default:
|
780 |
break;
|
781 |
} |
782 |
} |
783 |
} |
784 |
|
785 |
/* called for accesses between 0xa0000 and 0xc0000 */
|
786 |
uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr) |
787 |
{ |
788 |
int memory_map_mode, plane;
|
789 |
uint32_t ret; |
790 |
|
791 |
/* convert to VGA memory offset */
|
792 |
memory_map_mode = (s->gr[VGA_GFX_MISC] >> 2) & 3; |
793 |
addr &= 0x1ffff;
|
794 |
switch(memory_map_mode) {
|
795 |
case 0: |
796 |
break;
|
797 |
case 1: |
798 |
if (addr >= 0x10000) |
799 |
return 0xff; |
800 |
addr += s->bank_offset; |
801 |
break;
|
802 |
case 2: |
803 |
addr -= 0x10000;
|
804 |
if (addr >= 0x8000) |
805 |
return 0xff; |
806 |
break;
|
807 |
default:
|
808 |
case 3: |
809 |
addr -= 0x18000;
|
810 |
if (addr >= 0x8000) |
811 |
return 0xff; |
812 |
break;
|
813 |
} |
814 |
|
815 |
if (s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) {
|
816 |
/* chain 4 mode : simplest access */
|
817 |
ret = s->vram_ptr[addr]; |
818 |
} else if (s->gr[VGA_GFX_MODE] & 0x10) { |
819 |
/* odd/even mode (aka text mode mapping) */
|
820 |
plane = (s->gr[VGA_GFX_PLANE_READ] & 2) | (addr & 1); |
821 |
ret = s->vram_ptr[((addr & ~1) << 1) | plane]; |
822 |
} else {
|
823 |
/* standard VGA latched access */
|
824 |
s->latch = ((uint32_t *)s->vram_ptr)[addr]; |
825 |
|
826 |
if (!(s->gr[VGA_GFX_MODE] & 0x08)) { |
827 |
/* read mode 0 */
|
828 |
plane = s->gr[VGA_GFX_PLANE_READ]; |
829 |
ret = GET_PLANE(s->latch, plane); |
830 |
} else {
|
831 |
/* read mode 1 */
|
832 |
ret = (s->latch ^ mask16[s->gr[VGA_GFX_COMPARE_VALUE]]) & |
833 |
mask16[s->gr[VGA_GFX_COMPARE_MASK]]; |
834 |
ret |= ret >> 16;
|
835 |
ret |= ret >> 8;
|
836 |
ret = (~ret) & 0xff;
|
837 |
} |
838 |
} |
839 |
return ret;
|
840 |
} |
841 |
|
842 |
/* called for accesses between 0xa0000 and 0xc0000 */
|
843 |
void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val)
|
844 |
{ |
845 |
int memory_map_mode, plane, write_mode, b, func_select, mask;
|
846 |
uint32_t write_mask, bit_mask, set_mask; |
847 |
|
848 |
#ifdef DEBUG_VGA_MEM
|
849 |
printf("vga: [0x" TARGET_FMT_plx "] = 0x%02x\n", addr, val); |
850 |
#endif
|
851 |
/* convert to VGA memory offset */
|
852 |
memory_map_mode = (s->gr[VGA_GFX_MISC] >> 2) & 3; |
853 |
addr &= 0x1ffff;
|
854 |
switch(memory_map_mode) {
|
855 |
case 0: |
856 |
break;
|
857 |
case 1: |
858 |
if (addr >= 0x10000) |
859 |
return;
|
860 |
addr += s->bank_offset; |
861 |
break;
|
862 |
case 2: |
863 |
addr -= 0x10000;
|
864 |
if (addr >= 0x8000) |
865 |
return;
|
866 |
break;
|
867 |
default:
|
868 |
case 3: |
869 |
addr -= 0x18000;
|
870 |
if (addr >= 0x8000) |
871 |
return;
|
872 |
break;
|
873 |
} |
874 |
|
875 |
if (s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) {
|
876 |
/* chain 4 mode : simplest access */
|
877 |
plane = addr & 3;
|
878 |
mask = (1 << plane);
|
879 |
if (s->sr[VGA_SEQ_PLANE_WRITE] & mask) {
|
880 |
s->vram_ptr[addr] = val; |
881 |
#ifdef DEBUG_VGA_MEM
|
882 |
printf("vga: chain4: [0x" TARGET_FMT_plx "]\n", addr); |
883 |
#endif
|
884 |
s->plane_updated |= mask; /* only used to detect font change */
|
885 |
memory_region_set_dirty(&s->vram, addr, 1);
|
886 |
} |
887 |
} else if (s->gr[VGA_GFX_MODE] & 0x10) { |
888 |
/* odd/even mode (aka text mode mapping) */
|
889 |
plane = (s->gr[VGA_GFX_PLANE_READ] & 2) | (addr & 1); |
890 |
mask = (1 << plane);
|
891 |
if (s->sr[VGA_SEQ_PLANE_WRITE] & mask) {
|
892 |
addr = ((addr & ~1) << 1) | plane; |
893 |
s->vram_ptr[addr] = val; |
894 |
#ifdef DEBUG_VGA_MEM
|
895 |
printf("vga: odd/even: [0x" TARGET_FMT_plx "]\n", addr); |
896 |
#endif
|
897 |
s->plane_updated |= mask; /* only used to detect font change */
|
898 |
memory_region_set_dirty(&s->vram, addr, 1);
|
899 |
} |
900 |
} else {
|
901 |
/* standard VGA latched access */
|
902 |
write_mode = s->gr[VGA_GFX_MODE] & 3;
|
903 |
switch(write_mode) {
|
904 |
default:
|
905 |
case 0: |
906 |
/* rotate */
|
907 |
b = s->gr[VGA_GFX_DATA_ROTATE] & 7;
|
908 |
val = ((val >> b) | (val << (8 - b))) & 0xff; |
909 |
val |= val << 8;
|
910 |
val |= val << 16;
|
911 |
|
912 |
/* apply set/reset mask */
|
913 |
set_mask = mask16[s->gr[VGA_GFX_SR_ENABLE]]; |
914 |
val = (val & ~set_mask) | |
915 |
(mask16[s->gr[VGA_GFX_SR_VALUE]] & set_mask); |
916 |
bit_mask = s->gr[VGA_GFX_BIT_MASK]; |
917 |
break;
|
918 |
case 1: |
919 |
val = s->latch; |
920 |
goto do_write;
|
921 |
case 2: |
922 |
val = mask16[val & 0x0f];
|
923 |
bit_mask = s->gr[VGA_GFX_BIT_MASK]; |
924 |
break;
|
925 |
case 3: |
926 |
/* rotate */
|
927 |
b = s->gr[VGA_GFX_DATA_ROTATE] & 7;
|
928 |
val = (val >> b) | (val << (8 - b));
|
929 |
|
930 |
bit_mask = s->gr[VGA_GFX_BIT_MASK] & val; |
931 |
val = mask16[s->gr[VGA_GFX_SR_VALUE]]; |
932 |
break;
|
933 |
} |
934 |
|
935 |
/* apply logical operation */
|
936 |
func_select = s->gr[VGA_GFX_DATA_ROTATE] >> 3;
|
937 |
switch(func_select) {
|
938 |
case 0: |
939 |
default:
|
940 |
/* nothing to do */
|
941 |
break;
|
942 |
case 1: |
943 |
/* and */
|
944 |
val &= s->latch; |
945 |
break;
|
946 |
case 2: |
947 |
/* or */
|
948 |
val |= s->latch; |
949 |
break;
|
950 |
case 3: |
951 |
/* xor */
|
952 |
val ^= s->latch; |
953 |
break;
|
954 |
} |
955 |
|
956 |
/* apply bit mask */
|
957 |
bit_mask |= bit_mask << 8;
|
958 |
bit_mask |= bit_mask << 16;
|
959 |
val = (val & bit_mask) | (s->latch & ~bit_mask); |
960 |
|
961 |
do_write:
|
962 |
/* mask data according to sr[2] */
|
963 |
mask = s->sr[VGA_SEQ_PLANE_WRITE]; |
964 |
s->plane_updated |= mask; /* only used to detect font change */
|
965 |
write_mask = mask16[mask]; |
966 |
((uint32_t *)s->vram_ptr)[addr] = |
967 |
(((uint32_t *)s->vram_ptr)[addr] & ~write_mask) | |
968 |
(val & write_mask); |
969 |
#ifdef DEBUG_VGA_MEM
|
970 |
printf("vga: latch: [0x" TARGET_FMT_plx "] mask=0x%08x val=0x%08x\n", |
971 |
addr * 4, write_mask, val);
|
972 |
#endif
|
973 |
memory_region_set_dirty(&s->vram, addr << 2, sizeof(uint32_t)); |
974 |
} |
975 |
} |
976 |
|
977 |
typedef void vga_draw_glyph8_func(uint8_t *d, int linesize, |
978 |
const uint8_t *font_ptr, int h, |
979 |
uint32_t fgcol, uint32_t bgcol); |
980 |
typedef void vga_draw_glyph9_func(uint8_t *d, int linesize, |
981 |
const uint8_t *font_ptr, int h, |
982 |
uint32_t fgcol, uint32_t bgcol, int dup9);
|
983 |
typedef void vga_draw_line_func(VGACommonState *s1, uint8_t *d, |
984 |
const uint8_t *s, int width); |
985 |
|
986 |
#define DEPTH 8 |
987 |
#include "vga_template.h" |
988 |
|
989 |
#define DEPTH 15 |
990 |
#include "vga_template.h" |
991 |
|
992 |
#define BGR_FORMAT
|
993 |
#define DEPTH 15 |
994 |
#include "vga_template.h" |
995 |
|
996 |
#define DEPTH 16 |
997 |
#include "vga_template.h" |
998 |
|
999 |
#define BGR_FORMAT
|
1000 |
#define DEPTH 16 |
1001 |
#include "vga_template.h" |
1002 |
|
1003 |
#define DEPTH 32 |
1004 |
#include "vga_template.h" |
1005 |
|
1006 |
#define BGR_FORMAT
|
1007 |
#define DEPTH 32 |
1008 |
#include "vga_template.h" |
1009 |
|
1010 |
static unsigned int rgb_to_pixel8_dup(unsigned int r, unsigned int g, unsigned b) |
1011 |
{ |
1012 |
unsigned int col; |
1013 |
col = rgb_to_pixel8(r, g, b); |
1014 |
col |= col << 8;
|
1015 |
col |= col << 16;
|
1016 |
return col;
|
1017 |
} |
1018 |
|
1019 |
static unsigned int rgb_to_pixel15_dup(unsigned int r, unsigned int g, unsigned b) |
1020 |
{ |
1021 |
unsigned int col; |
1022 |
col = rgb_to_pixel15(r, g, b); |
1023 |
col |= col << 16;
|
1024 |
return col;
|
1025 |
} |
1026 |
|
1027 |
static unsigned int rgb_to_pixel15bgr_dup(unsigned int r, unsigned int g, |
1028 |
unsigned int b) |
1029 |
{ |
1030 |
unsigned int col; |
1031 |
col = rgb_to_pixel15bgr(r, g, b); |
1032 |
col |= col << 16;
|
1033 |
return col;
|
1034 |
} |
1035 |
|
1036 |
static unsigned int rgb_to_pixel16_dup(unsigned int r, unsigned int g, unsigned b) |
1037 |
{ |
1038 |
unsigned int col; |
1039 |
col = rgb_to_pixel16(r, g, b); |
1040 |
col |= col << 16;
|
1041 |
return col;
|
1042 |
} |
1043 |
|
1044 |
static unsigned int rgb_to_pixel16bgr_dup(unsigned int r, unsigned int g, |
1045 |
unsigned int b) |
1046 |
{ |
1047 |
unsigned int col; |
1048 |
col = rgb_to_pixel16bgr(r, g, b); |
1049 |
col |= col << 16;
|
1050 |
return col;
|
1051 |
} |
1052 |
|
1053 |
static unsigned int rgb_to_pixel32_dup(unsigned int r, unsigned int g, unsigned b) |
1054 |
{ |
1055 |
unsigned int col; |
1056 |
col = rgb_to_pixel32(r, g, b); |
1057 |
return col;
|
1058 |
} |
1059 |
|
1060 |
static unsigned int rgb_to_pixel32bgr_dup(unsigned int r, unsigned int g, unsigned b) |
1061 |
{ |
1062 |
unsigned int col; |
1063 |
col = rgb_to_pixel32bgr(r, g, b); |
1064 |
return col;
|
1065 |
} |
1066 |
|
1067 |
/* return true if the palette was modified */
|
1068 |
static int update_palette16(VGACommonState *s) |
1069 |
{ |
1070 |
int full_update, i;
|
1071 |
uint32_t v, col, *palette; |
1072 |
|
1073 |
full_update = 0;
|
1074 |
palette = s->last_palette; |
1075 |
for(i = 0; i < 16; i++) { |
1076 |
v = s->ar[i]; |
1077 |
if (s->ar[VGA_ATC_MODE] & 0x80) { |
1078 |
v = ((s->ar[VGA_ATC_COLOR_PAGE] & 0xf) << 4) | (v & 0xf); |
1079 |
} else {
|
1080 |
v = ((s->ar[VGA_ATC_COLOR_PAGE] & 0xc) << 4) | (v & 0x3f); |
1081 |
} |
1082 |
v = v * 3;
|
1083 |
col = s->rgb_to_pixel(c6_to_8(s->palette[v]), |
1084 |
c6_to_8(s->palette[v + 1]),
|
1085 |
c6_to_8(s->palette[v + 2]));
|
1086 |
if (col != palette[i]) {
|
1087 |
full_update = 1;
|
1088 |
palette[i] = col; |
1089 |
} |
1090 |
} |
1091 |
return full_update;
|
1092 |
} |
1093 |
|
1094 |
/* return true if the palette was modified */
|
1095 |
static int update_palette256(VGACommonState *s) |
1096 |
{ |
1097 |
int full_update, i;
|
1098 |
uint32_t v, col, *palette; |
1099 |
|
1100 |
full_update = 0;
|
1101 |
palette = s->last_palette; |
1102 |
v = 0;
|
1103 |
for(i = 0; i < 256; i++) { |
1104 |
if (s->dac_8bit) {
|
1105 |
col = s->rgb_to_pixel(s->palette[v], |
1106 |
s->palette[v + 1],
|
1107 |
s->palette[v + 2]);
|
1108 |
} else {
|
1109 |
col = s->rgb_to_pixel(c6_to_8(s->palette[v]), |
1110 |
c6_to_8(s->palette[v + 1]),
|
1111 |
c6_to_8(s->palette[v + 2]));
|
1112 |
} |
1113 |
if (col != palette[i]) {
|
1114 |
full_update = 1;
|
1115 |
palette[i] = col; |
1116 |
} |
1117 |
v += 3;
|
1118 |
} |
1119 |
return full_update;
|
1120 |
} |
1121 |
|
1122 |
static void vga_get_offsets(VGACommonState *s, |
1123 |
uint32_t *pline_offset, |
1124 |
uint32_t *pstart_addr, |
1125 |
uint32_t *pline_compare) |
1126 |
{ |
1127 |
uint32_t start_addr, line_offset, line_compare; |
1128 |
|
1129 |
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
|
1130 |
line_offset = s->vbe_line_offset; |
1131 |
start_addr = s->vbe_start_addr; |
1132 |
line_compare = 65535;
|
1133 |
} else {
|
1134 |
/* compute line_offset in bytes */
|
1135 |
line_offset = s->cr[VGA_CRTC_OFFSET]; |
1136 |
line_offset <<= 3;
|
1137 |
|
1138 |
/* starting address */
|
1139 |
start_addr = s->cr[VGA_CRTC_START_LO] | |
1140 |
(s->cr[VGA_CRTC_START_HI] << 8);
|
1141 |
|
1142 |
/* line compare */
|
1143 |
line_compare = s->cr[VGA_CRTC_LINE_COMPARE] | |
1144 |
((s->cr[VGA_CRTC_OVERFLOW] & 0x10) << 4) | |
1145 |
((s->cr[VGA_CRTC_MAX_SCAN] & 0x40) << 3); |
1146 |
} |
1147 |
*pline_offset = line_offset; |
1148 |
*pstart_addr = start_addr; |
1149 |
*pline_compare = line_compare; |
1150 |
} |
1151 |
|
1152 |
/* update start_addr and line_offset. Return TRUE if modified */
|
1153 |
static int update_basic_params(VGACommonState *s) |
1154 |
{ |
1155 |
int full_update;
|
1156 |
uint32_t start_addr, line_offset, line_compare; |
1157 |
|
1158 |
full_update = 0;
|
1159 |
|
1160 |
s->get_offsets(s, &line_offset, &start_addr, &line_compare); |
1161 |
|
1162 |
if (line_offset != s->line_offset ||
|
1163 |
start_addr != s->start_addr || |
1164 |
line_compare != s->line_compare) { |
1165 |
s->line_offset = line_offset; |
1166 |
s->start_addr = start_addr; |
1167 |
s->line_compare = line_compare; |
1168 |
full_update = 1;
|
1169 |
} |
1170 |
return full_update;
|
1171 |
} |
1172 |
|
1173 |
#define NB_DEPTHS 7 |
1174 |
|
1175 |
static inline int get_depth_index(DisplaySurface *s) |
1176 |
{ |
1177 |
switch (surface_bits_per_pixel(s)) {
|
1178 |
default:
|
1179 |
case 8: |
1180 |
return 0; |
1181 |
case 15: |
1182 |
return 1; |
1183 |
case 16: |
1184 |
return 2; |
1185 |
case 32: |
1186 |
if (is_surface_bgr(s)) {
|
1187 |
return 4; |
1188 |
} else {
|
1189 |
return 3; |
1190 |
} |
1191 |
} |
1192 |
} |
1193 |
|
1194 |
static vga_draw_glyph8_func * const vga_draw_glyph8_table[NB_DEPTHS] = { |
1195 |
vga_draw_glyph8_8, |
1196 |
vga_draw_glyph8_16, |
1197 |
vga_draw_glyph8_16, |
1198 |
vga_draw_glyph8_32, |
1199 |
vga_draw_glyph8_32, |
1200 |
vga_draw_glyph8_16, |
1201 |
vga_draw_glyph8_16, |
1202 |
}; |
1203 |
|
1204 |
static vga_draw_glyph8_func * const vga_draw_glyph16_table[NB_DEPTHS] = { |
1205 |
vga_draw_glyph16_8, |
1206 |
vga_draw_glyph16_16, |
1207 |
vga_draw_glyph16_16, |
1208 |
vga_draw_glyph16_32, |
1209 |
vga_draw_glyph16_32, |
1210 |
vga_draw_glyph16_16, |
1211 |
vga_draw_glyph16_16, |
1212 |
}; |
1213 |
|
1214 |
static vga_draw_glyph9_func * const vga_draw_glyph9_table[NB_DEPTHS] = { |
1215 |
vga_draw_glyph9_8, |
1216 |
vga_draw_glyph9_16, |
1217 |
vga_draw_glyph9_16, |
1218 |
vga_draw_glyph9_32, |
1219 |
vga_draw_glyph9_32, |
1220 |
vga_draw_glyph9_16, |
1221 |
vga_draw_glyph9_16, |
1222 |
}; |
1223 |
|
1224 |
static const uint8_t cursor_glyph[32 * 4] = { |
1225 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1226 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1227 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1228 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1229 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1230 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1231 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1232 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1233 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1234 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1235 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1236 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1237 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1238 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1239 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1240 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1241 |
}; |
1242 |
|
1243 |
static void vga_get_text_resolution(VGACommonState *s, int *pwidth, int *pheight, |
1244 |
int *pcwidth, int *pcheight) |
1245 |
{ |
1246 |
int width, cwidth, height, cheight;
|
1247 |
|
1248 |
/* total width & height */
|
1249 |
cheight = (s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1; |
1250 |
cwidth = 8;
|
1251 |
if (!(s->sr[VGA_SEQ_CLOCK_MODE] & VGA_SR01_CHAR_CLK_8DOTS)) {
|
1252 |
cwidth = 9;
|
1253 |
} |
1254 |
if (s->sr[VGA_SEQ_CLOCK_MODE] & 0x08) { |
1255 |
cwidth = 16; /* NOTE: no 18 pixel wide */ |
1256 |
} |
1257 |
width = (s->cr[VGA_CRTC_H_DISP] + 1);
|
1258 |
if (s->cr[VGA_CRTC_V_TOTAL] == 100) { |
1259 |
/* ugly hack for CGA 160x100x16 - explain me the logic */
|
1260 |
height = 100;
|
1261 |
} else {
|
1262 |
height = s->cr[VGA_CRTC_V_DISP_END] | |
1263 |
((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | |
1264 |
((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); |
1265 |
height = (height + 1) / cheight;
|
1266 |
} |
1267 |
|
1268 |
*pwidth = width; |
1269 |
*pheight = height; |
1270 |
*pcwidth = cwidth; |
1271 |
*pcheight = cheight; |
1272 |
} |
1273 |
|
1274 |
typedef unsigned int rgb_to_pixel_dup_func(unsigned int r, unsigned int g, unsigned b); |
1275 |
|
1276 |
static rgb_to_pixel_dup_func * const rgb_to_pixel_dup_table[NB_DEPTHS] = { |
1277 |
rgb_to_pixel8_dup, |
1278 |
rgb_to_pixel15_dup, |
1279 |
rgb_to_pixel16_dup, |
1280 |
rgb_to_pixel32_dup, |
1281 |
rgb_to_pixel32bgr_dup, |
1282 |
rgb_to_pixel15bgr_dup, |
1283 |
rgb_to_pixel16bgr_dup, |
1284 |
}; |
1285 |
|
1286 |
/*
|
1287 |
* Text mode update
|
1288 |
* Missing:
|
1289 |
* - double scan
|
1290 |
* - double width
|
1291 |
* - underline
|
1292 |
* - flashing
|
1293 |
*/
|
1294 |
static void vga_draw_text(VGACommonState *s, int full_update) |
1295 |
{ |
1296 |
DisplaySurface *surface = qemu_console_surface(s->con); |
1297 |
int cx, cy, cheight, cw, ch, cattr, height, width, ch_attr;
|
1298 |
int cx_min, cx_max, linesize, x_incr, line, line1;
|
1299 |
uint32_t offset, fgcol, bgcol, v, cursor_offset; |
1300 |
uint8_t *d1, *d, *src, *dest, *cursor_ptr; |
1301 |
const uint8_t *font_ptr, *font_base[2]; |
1302 |
int dup9, line_offset, depth_index;
|
1303 |
uint32_t *palette; |
1304 |
uint32_t *ch_attr_ptr; |
1305 |
vga_draw_glyph8_func *vga_draw_glyph8; |
1306 |
vga_draw_glyph9_func *vga_draw_glyph9; |
1307 |
int64_t now = qemu_get_clock_ms(vm_clock); |
1308 |
|
1309 |
/* compute font data address (in plane 2) */
|
1310 |
v = s->sr[VGA_SEQ_CHARACTER_MAP]; |
1311 |
offset = (((v >> 4) & 1) | ((v << 1) & 6)) * 8192 * 4 + 2; |
1312 |
if (offset != s->font_offsets[0]) { |
1313 |
s->font_offsets[0] = offset;
|
1314 |
full_update = 1;
|
1315 |
} |
1316 |
font_base[0] = s->vram_ptr + offset;
|
1317 |
|
1318 |
offset = (((v >> 5) & 1) | ((v >> 1) & 6)) * 8192 * 4 + 2; |
1319 |
font_base[1] = s->vram_ptr + offset;
|
1320 |
if (offset != s->font_offsets[1]) { |
1321 |
s->font_offsets[1] = offset;
|
1322 |
full_update = 1;
|
1323 |
} |
1324 |
if (s->plane_updated & (1 << 2) || s->chain4_alias) { |
1325 |
/* if the plane 2 was modified since the last display, it
|
1326 |
indicates the font may have been modified */
|
1327 |
s->plane_updated = 0;
|
1328 |
full_update = 1;
|
1329 |
} |
1330 |
full_update |= update_basic_params(s); |
1331 |
|
1332 |
line_offset = s->line_offset; |
1333 |
|
1334 |
vga_get_text_resolution(s, &width, &height, &cw, &cheight); |
1335 |
if ((height * width) <= 1) { |
1336 |
/* better than nothing: exit if transient size is too small */
|
1337 |
return;
|
1338 |
} |
1339 |
if ((height * width) > CH_ATTR_SIZE) {
|
1340 |
/* better than nothing: exit if transient size is too big */
|
1341 |
return;
|
1342 |
} |
1343 |
|
1344 |
if (width != s->last_width || height != s->last_height ||
|
1345 |
cw != s->last_cw || cheight != s->last_ch || s->last_depth) { |
1346 |
s->last_scr_width = width * cw; |
1347 |
s->last_scr_height = height * cheight; |
1348 |
qemu_console_resize(s->con, s->last_scr_width, s->last_scr_height); |
1349 |
surface = qemu_console_surface(s->con); |
1350 |
dpy_text_resize(s->con, width, height); |
1351 |
s->last_depth = 0;
|
1352 |
s->last_width = width; |
1353 |
s->last_height = height; |
1354 |
s->last_ch = cheight; |
1355 |
s->last_cw = cw; |
1356 |
full_update = 1;
|
1357 |
} |
1358 |
s->rgb_to_pixel = |
1359 |
rgb_to_pixel_dup_table[get_depth_index(surface)]; |
1360 |
full_update |= update_palette16(s); |
1361 |
palette = s->last_palette; |
1362 |
x_incr = cw * surface_bytes_per_pixel(surface); |
1363 |
|
1364 |
if (full_update) {
|
1365 |
s->full_update_text = 1;
|
1366 |
} |
1367 |
if (s->full_update_gfx) {
|
1368 |
s->full_update_gfx = 0;
|
1369 |
full_update |= 1;
|
1370 |
} |
1371 |
|
1372 |
cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) |
|
1373 |
s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr; |
1374 |
if (cursor_offset != s->cursor_offset ||
|
1375 |
s->cr[VGA_CRTC_CURSOR_START] != s->cursor_start || |
1376 |
s->cr[VGA_CRTC_CURSOR_END] != s->cursor_end) { |
1377 |
/* if the cursor position changed, we update the old and new
|
1378 |
chars */
|
1379 |
if (s->cursor_offset < CH_ATTR_SIZE)
|
1380 |
s->last_ch_attr[s->cursor_offset] = -1;
|
1381 |
if (cursor_offset < CH_ATTR_SIZE)
|
1382 |
s->last_ch_attr[cursor_offset] = -1;
|
1383 |
s->cursor_offset = cursor_offset; |
1384 |
s->cursor_start = s->cr[VGA_CRTC_CURSOR_START]; |
1385 |
s->cursor_end = s->cr[VGA_CRTC_CURSOR_END]; |
1386 |
} |
1387 |
cursor_ptr = s->vram_ptr + (s->start_addr + cursor_offset) * 4;
|
1388 |
if (now >= s->cursor_blink_time) {
|
1389 |
s->cursor_blink_time = now + VGA_TEXT_CURSOR_PERIOD_MS / 2;
|
1390 |
s->cursor_visible_phase = !s->cursor_visible_phase; |
1391 |
} |
1392 |
|
1393 |
depth_index = get_depth_index(surface); |
1394 |
if (cw == 16) |
1395 |
vga_draw_glyph8 = vga_draw_glyph16_table[depth_index]; |
1396 |
else
|
1397 |
vga_draw_glyph8 = vga_draw_glyph8_table[depth_index]; |
1398 |
vga_draw_glyph9 = vga_draw_glyph9_table[depth_index]; |
1399 |
|
1400 |
dest = surface_data(surface); |
1401 |
linesize = surface_stride(surface); |
1402 |
ch_attr_ptr = s->last_ch_attr; |
1403 |
line = 0;
|
1404 |
offset = s->start_addr * 4;
|
1405 |
for(cy = 0; cy < height; cy++) { |
1406 |
d1 = dest; |
1407 |
src = s->vram_ptr + offset; |
1408 |
cx_min = width; |
1409 |
cx_max = -1;
|
1410 |
for(cx = 0; cx < width; cx++) { |
1411 |
ch_attr = *(uint16_t *)src; |
1412 |
if (full_update || ch_attr != *ch_attr_ptr || src == cursor_ptr) {
|
1413 |
if (cx < cx_min)
|
1414 |
cx_min = cx; |
1415 |
if (cx > cx_max)
|
1416 |
cx_max = cx; |
1417 |
*ch_attr_ptr = ch_attr; |
1418 |
#ifdef HOST_WORDS_BIGENDIAN
|
1419 |
ch = ch_attr >> 8;
|
1420 |
cattr = ch_attr & 0xff;
|
1421 |
#else
|
1422 |
ch = ch_attr & 0xff;
|
1423 |
cattr = ch_attr >> 8;
|
1424 |
#endif
|
1425 |
font_ptr = font_base[(cattr >> 3) & 1]; |
1426 |
font_ptr += 32 * 4 * ch; |
1427 |
bgcol = palette[cattr >> 4];
|
1428 |
fgcol = palette[cattr & 0x0f];
|
1429 |
if (cw != 9) { |
1430 |
vga_draw_glyph8(d1, linesize, |
1431 |
font_ptr, cheight, fgcol, bgcol); |
1432 |
} else {
|
1433 |
dup9 = 0;
|
1434 |
if (ch >= 0xb0 && ch <= 0xdf && |
1435 |
(s->ar[VGA_ATC_MODE] & 0x04)) {
|
1436 |
dup9 = 1;
|
1437 |
} |
1438 |
vga_draw_glyph9(d1, linesize, |
1439 |
font_ptr, cheight, fgcol, bgcol, dup9); |
1440 |
} |
1441 |
if (src == cursor_ptr &&
|
1442 |
!(s->cr[VGA_CRTC_CURSOR_START] & 0x20) &&
|
1443 |
s->cursor_visible_phase) { |
1444 |
int line_start, line_last, h;
|
1445 |
/* draw the cursor */
|
1446 |
line_start = s->cr[VGA_CRTC_CURSOR_START] & 0x1f;
|
1447 |
line_last = s->cr[VGA_CRTC_CURSOR_END] & 0x1f;
|
1448 |
/* XXX: check that */
|
1449 |
if (line_last > cheight - 1) |
1450 |
line_last = cheight - 1;
|
1451 |
if (line_last >= line_start && line_start < cheight) {
|
1452 |
h = line_last - line_start + 1;
|
1453 |
d = d1 + linesize * line_start; |
1454 |
if (cw != 9) { |
1455 |
vga_draw_glyph8(d, linesize, |
1456 |
cursor_glyph, h, fgcol, bgcol); |
1457 |
} else {
|
1458 |
vga_draw_glyph9(d, linesize, |
1459 |
cursor_glyph, h, fgcol, bgcol, 1);
|
1460 |
} |
1461 |
} |
1462 |
} |
1463 |
} |
1464 |
d1 += x_incr; |
1465 |
src += 4;
|
1466 |
ch_attr_ptr++; |
1467 |
} |
1468 |
if (cx_max != -1) { |
1469 |
dpy_gfx_update(s->con, cx_min * cw, cy * cheight, |
1470 |
(cx_max - cx_min + 1) * cw, cheight);
|
1471 |
} |
1472 |
dest += linesize * cheight; |
1473 |
line1 = line + cheight; |
1474 |
offset += line_offset; |
1475 |
if (line < s->line_compare && line1 >= s->line_compare) {
|
1476 |
offset = 0;
|
1477 |
} |
1478 |
line = line1; |
1479 |
} |
1480 |
} |
1481 |
|
1482 |
enum {
|
1483 |
VGA_DRAW_LINE2, |
1484 |
VGA_DRAW_LINE2D2, |
1485 |
VGA_DRAW_LINE4, |
1486 |
VGA_DRAW_LINE4D2, |
1487 |
VGA_DRAW_LINE8D2, |
1488 |
VGA_DRAW_LINE8, |
1489 |
VGA_DRAW_LINE15, |
1490 |
VGA_DRAW_LINE16, |
1491 |
VGA_DRAW_LINE24, |
1492 |
VGA_DRAW_LINE32, |
1493 |
VGA_DRAW_LINE_NB, |
1494 |
}; |
1495 |
|
1496 |
static vga_draw_line_func * const vga_draw_line_table[NB_DEPTHS * VGA_DRAW_LINE_NB] = { |
1497 |
vga_draw_line2_8, |
1498 |
vga_draw_line2_16, |
1499 |
vga_draw_line2_16, |
1500 |
vga_draw_line2_32, |
1501 |
vga_draw_line2_32, |
1502 |
vga_draw_line2_16, |
1503 |
vga_draw_line2_16, |
1504 |
|
1505 |
vga_draw_line2d2_8, |
1506 |
vga_draw_line2d2_16, |
1507 |
vga_draw_line2d2_16, |
1508 |
vga_draw_line2d2_32, |
1509 |
vga_draw_line2d2_32, |
1510 |
vga_draw_line2d2_16, |
1511 |
vga_draw_line2d2_16, |
1512 |
|
1513 |
vga_draw_line4_8, |
1514 |
vga_draw_line4_16, |
1515 |
vga_draw_line4_16, |
1516 |
vga_draw_line4_32, |
1517 |
vga_draw_line4_32, |
1518 |
vga_draw_line4_16, |
1519 |
vga_draw_line4_16, |
1520 |
|
1521 |
vga_draw_line4d2_8, |
1522 |
vga_draw_line4d2_16, |
1523 |
vga_draw_line4d2_16, |
1524 |
vga_draw_line4d2_32, |
1525 |
vga_draw_line4d2_32, |
1526 |
vga_draw_line4d2_16, |
1527 |
vga_draw_line4d2_16, |
1528 |
|
1529 |
vga_draw_line8d2_8, |
1530 |
vga_draw_line8d2_16, |
1531 |
vga_draw_line8d2_16, |
1532 |
vga_draw_line8d2_32, |
1533 |
vga_draw_line8d2_32, |
1534 |
vga_draw_line8d2_16, |
1535 |
vga_draw_line8d2_16, |
1536 |
|
1537 |
vga_draw_line8_8, |
1538 |
vga_draw_line8_16, |
1539 |
vga_draw_line8_16, |
1540 |
vga_draw_line8_32, |
1541 |
vga_draw_line8_32, |
1542 |
vga_draw_line8_16, |
1543 |
vga_draw_line8_16, |
1544 |
|
1545 |
vga_draw_line15_8, |
1546 |
vga_draw_line15_15, |
1547 |
vga_draw_line15_16, |
1548 |
vga_draw_line15_32, |
1549 |
vga_draw_line15_32bgr, |
1550 |
vga_draw_line15_15bgr, |
1551 |
vga_draw_line15_16bgr, |
1552 |
|
1553 |
vga_draw_line16_8, |
1554 |
vga_draw_line16_15, |
1555 |
vga_draw_line16_16, |
1556 |
vga_draw_line16_32, |
1557 |
vga_draw_line16_32bgr, |
1558 |
vga_draw_line16_15bgr, |
1559 |
vga_draw_line16_16bgr, |
1560 |
|
1561 |
vga_draw_line24_8, |
1562 |
vga_draw_line24_15, |
1563 |
vga_draw_line24_16, |
1564 |
vga_draw_line24_32, |
1565 |
vga_draw_line24_32bgr, |
1566 |
vga_draw_line24_15bgr, |
1567 |
vga_draw_line24_16bgr, |
1568 |
|
1569 |
vga_draw_line32_8, |
1570 |
vga_draw_line32_15, |
1571 |
vga_draw_line32_16, |
1572 |
vga_draw_line32_32, |
1573 |
vga_draw_line32_32bgr, |
1574 |
vga_draw_line32_15bgr, |
1575 |
vga_draw_line32_16bgr, |
1576 |
}; |
1577 |
|
1578 |
static int vga_get_bpp(VGACommonState *s) |
1579 |
{ |
1580 |
int ret;
|
1581 |
|
1582 |
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
|
1583 |
ret = s->vbe_regs[VBE_DISPI_INDEX_BPP]; |
1584 |
} else {
|
1585 |
ret = 0;
|
1586 |
} |
1587 |
return ret;
|
1588 |
} |
1589 |
|
1590 |
static void vga_get_resolution(VGACommonState *s, int *pwidth, int *pheight) |
1591 |
{ |
1592 |
int width, height;
|
1593 |
|
1594 |
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
|
1595 |
width = s->vbe_regs[VBE_DISPI_INDEX_XRES]; |
1596 |
height = s->vbe_regs[VBE_DISPI_INDEX_YRES]; |
1597 |
} else {
|
1598 |
width = (s->cr[VGA_CRTC_H_DISP] + 1) * 8; |
1599 |
height = s->cr[VGA_CRTC_V_DISP_END] | |
1600 |
((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | |
1601 |
((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); |
1602 |
height = (height + 1);
|
1603 |
} |
1604 |
*pwidth = width; |
1605 |
*pheight = height; |
1606 |
} |
1607 |
|
1608 |
void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2) |
1609 |
{ |
1610 |
int y;
|
1611 |
if (y1 >= VGA_MAX_HEIGHT)
|
1612 |
return;
|
1613 |
if (y2 >= VGA_MAX_HEIGHT)
|
1614 |
y2 = VGA_MAX_HEIGHT; |
1615 |
for(y = y1; y < y2; y++) {
|
1616 |
s->invalidated_y_table[y >> 5] |= 1 << (y & 0x1f); |
1617 |
} |
1618 |
} |
1619 |
|
1620 |
void vga_sync_dirty_bitmap(VGACommonState *s)
|
1621 |
{ |
1622 |
memory_region_sync_dirty_bitmap(&s->vram); |
1623 |
} |
1624 |
|
1625 |
void vga_dirty_log_start(VGACommonState *s)
|
1626 |
{ |
1627 |
memory_region_set_log(&s->vram, true, DIRTY_MEMORY_VGA);
|
1628 |
} |
1629 |
|
1630 |
void vga_dirty_log_stop(VGACommonState *s)
|
1631 |
{ |
1632 |
memory_region_set_log(&s->vram, false, DIRTY_MEMORY_VGA);
|
1633 |
} |
1634 |
|
1635 |
/*
|
1636 |
* graphic modes
|
1637 |
*/
|
1638 |
static void vga_draw_graphic(VGACommonState *s, int full_update) |
1639 |
{ |
1640 |
DisplaySurface *surface = qemu_console_surface(s->con); |
1641 |
int y1, y, update, linesize, y_start, double_scan, mask, depth;
|
1642 |
int width, height, shift_control, line_offset, bwidth, bits;
|
1643 |
ram_addr_t page0, page1, page_min, page_max; |
1644 |
int disp_width, multi_scan, multi_run;
|
1645 |
uint8_t *d; |
1646 |
uint32_t v, addr1, addr; |
1647 |
vga_draw_line_func *vga_draw_line; |
1648 |
#if defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
|
1649 |
static const bool byteswap = false; |
1650 |
#else
|
1651 |
static const bool byteswap = true; |
1652 |
#endif
|
1653 |
|
1654 |
full_update |= update_basic_params(s); |
1655 |
|
1656 |
if (!full_update)
|
1657 |
vga_sync_dirty_bitmap(s); |
1658 |
|
1659 |
s->get_resolution(s, &width, &height); |
1660 |
disp_width = width; |
1661 |
|
1662 |
shift_control = (s->gr[VGA_GFX_MODE] >> 5) & 3; |
1663 |
double_scan = (s->cr[VGA_CRTC_MAX_SCAN] >> 7);
|
1664 |
if (shift_control != 1) { |
1665 |
multi_scan = (((s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1) << double_scan) |
1666 |
- 1;
|
1667 |
} else {
|
1668 |
/* in CGA modes, multi_scan is ignored */
|
1669 |
/* XXX: is it correct ? */
|
1670 |
multi_scan = double_scan; |
1671 |
} |
1672 |
multi_run = multi_scan; |
1673 |
if (shift_control != s->shift_control ||
|
1674 |
double_scan != s->double_scan) { |
1675 |
full_update = 1;
|
1676 |
s->shift_control = shift_control; |
1677 |
s->double_scan = double_scan; |
1678 |
} |
1679 |
|
1680 |
if (shift_control == 0) { |
1681 |
if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { |
1682 |
disp_width <<= 1;
|
1683 |
} |
1684 |
} else if (shift_control == 1) { |
1685 |
if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { |
1686 |
disp_width <<= 1;
|
1687 |
} |
1688 |
} |
1689 |
|
1690 |
depth = s->get_bpp(s); |
1691 |
if (s->line_offset != s->last_line_offset ||
|
1692 |
disp_width != s->last_width || |
1693 |
height != s->last_height || |
1694 |
s->last_depth != depth) { |
1695 |
if (depth == 32 || (depth == 16 && !byteswap)) { |
1696 |
surface = qemu_create_displaysurface_from(disp_width, |
1697 |
height, depth, s->line_offset, |
1698 |
s->vram_ptr + (s->start_addr * 4), byteswap);
|
1699 |
dpy_gfx_replace_surface(s->con, surface); |
1700 |
} else {
|
1701 |
qemu_console_resize(s->con, disp_width, height); |
1702 |
surface = qemu_console_surface(s->con); |
1703 |
} |
1704 |
s->last_scr_width = disp_width; |
1705 |
s->last_scr_height = height; |
1706 |
s->last_width = disp_width; |
1707 |
s->last_height = height; |
1708 |
s->last_line_offset = s->line_offset; |
1709 |
s->last_depth = depth; |
1710 |
full_update = 1;
|
1711 |
} else if (is_buffer_shared(surface) && |
1712 |
(full_update || surface_data(surface) != s->vram_ptr |
1713 |
+ (s->start_addr * 4))) {
|
1714 |
DisplaySurface *surface; |
1715 |
surface = qemu_create_displaysurface_from(disp_width, |
1716 |
height, depth, s->line_offset, |
1717 |
s->vram_ptr + (s->start_addr * 4), byteswap);
|
1718 |
dpy_gfx_replace_surface(s->con, surface); |
1719 |
} |
1720 |
|
1721 |
s->rgb_to_pixel = |
1722 |
rgb_to_pixel_dup_table[get_depth_index(surface)]; |
1723 |
|
1724 |
if (shift_control == 0) { |
1725 |
full_update |= update_palette16(s); |
1726 |
if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { |
1727 |
v = VGA_DRAW_LINE4D2; |
1728 |
} else {
|
1729 |
v = VGA_DRAW_LINE4; |
1730 |
} |
1731 |
bits = 4;
|
1732 |
} else if (shift_control == 1) { |
1733 |
full_update |= update_palette16(s); |
1734 |
if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { |
1735 |
v = VGA_DRAW_LINE2D2; |
1736 |
} else {
|
1737 |
v = VGA_DRAW_LINE2; |
1738 |
} |
1739 |
bits = 4;
|
1740 |
} else {
|
1741 |
switch(s->get_bpp(s)) {
|
1742 |
default:
|
1743 |
case 0: |
1744 |
full_update |= update_palette256(s); |
1745 |
v = VGA_DRAW_LINE8D2; |
1746 |
bits = 4;
|
1747 |
break;
|
1748 |
case 8: |
1749 |
full_update |= update_palette256(s); |
1750 |
v = VGA_DRAW_LINE8; |
1751 |
bits = 8;
|
1752 |
break;
|
1753 |
case 15: |
1754 |
v = VGA_DRAW_LINE15; |
1755 |
bits = 16;
|
1756 |
break;
|
1757 |
case 16: |
1758 |
v = VGA_DRAW_LINE16; |
1759 |
bits = 16;
|
1760 |
break;
|
1761 |
case 24: |
1762 |
v = VGA_DRAW_LINE24; |
1763 |
bits = 24;
|
1764 |
break;
|
1765 |
case 32: |
1766 |
v = VGA_DRAW_LINE32; |
1767 |
bits = 32;
|
1768 |
break;
|
1769 |
} |
1770 |
} |
1771 |
vga_draw_line = vga_draw_line_table[v * NB_DEPTHS + |
1772 |
get_depth_index(surface)]; |
1773 |
|
1774 |
if (!is_buffer_shared(surface) && s->cursor_invalidate) {
|
1775 |
s->cursor_invalidate(s); |
1776 |
} |
1777 |
|
1778 |
line_offset = s->line_offset; |
1779 |
#if 0
|
1780 |
printf("w=%d h=%d v=%d line_offset=%d cr[0x09]=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=0x%02x\n",
|
1781 |
width, height, v, line_offset, s->cr[9], s->cr[VGA_CRTC_MODE],
|
1782 |
s->line_compare, s->sr[VGA_SEQ_CLOCK_MODE]);
|
1783 |
#endif
|
1784 |
addr1 = (s->start_addr * 4);
|
1785 |
bwidth = (width * bits + 7) / 8; |
1786 |
y_start = -1;
|
1787 |
page_min = -1;
|
1788 |
page_max = 0;
|
1789 |
d = surface_data(surface); |
1790 |
linesize = surface_stride(surface); |
1791 |
y1 = 0;
|
1792 |
for(y = 0; y < height; y++) { |
1793 |
addr = addr1; |
1794 |
if (!(s->cr[VGA_CRTC_MODE] & 1)) { |
1795 |
int shift;
|
1796 |
/* CGA compatibility handling */
|
1797 |
shift = 14 + ((s->cr[VGA_CRTC_MODE] >> 6) & 1); |
1798 |
addr = (addr & ~(1 << shift)) | ((y1 & 1) << shift); |
1799 |
} |
1800 |
if (!(s->cr[VGA_CRTC_MODE] & 2)) { |
1801 |
addr = (addr & ~0x8000) | ((y1 & 2) << 14); |
1802 |
} |
1803 |
update = full_update; |
1804 |
page0 = addr; |
1805 |
page1 = addr + bwidth - 1;
|
1806 |
update |= memory_region_get_dirty(&s->vram, page0, page1 - page0, |
1807 |
DIRTY_MEMORY_VGA); |
1808 |
/* explicit invalidation for the hardware cursor */
|
1809 |
update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1; |
1810 |
if (update) {
|
1811 |
if (y_start < 0) |
1812 |
y_start = y; |
1813 |
if (page0 < page_min)
|
1814 |
page_min = page0; |
1815 |
if (page1 > page_max)
|
1816 |
page_max = page1; |
1817 |
if (!(is_buffer_shared(surface))) {
|
1818 |
vga_draw_line(s, d, s->vram_ptr + addr, width); |
1819 |
if (s->cursor_draw_line)
|
1820 |
s->cursor_draw_line(s, d, y); |
1821 |
} |
1822 |
} else {
|
1823 |
if (y_start >= 0) { |
1824 |
/* flush to display */
|
1825 |
dpy_gfx_update(s->con, 0, y_start,
|
1826 |
disp_width, y - y_start); |
1827 |
y_start = -1;
|
1828 |
} |
1829 |
} |
1830 |
if (!multi_run) {
|
1831 |
mask = (s->cr[VGA_CRTC_MODE] & 3) ^ 3; |
1832 |
if ((y1 & mask) == mask)
|
1833 |
addr1 += line_offset; |
1834 |
y1++; |
1835 |
multi_run = multi_scan; |
1836 |
} else {
|
1837 |
multi_run--; |
1838 |
} |
1839 |
/* line compare acts on the displayed lines */
|
1840 |
if (y == s->line_compare)
|
1841 |
addr1 = 0;
|
1842 |
d += linesize; |
1843 |
} |
1844 |
if (y_start >= 0) { |
1845 |
/* flush to display */
|
1846 |
dpy_gfx_update(s->con, 0, y_start,
|
1847 |
disp_width, y - y_start); |
1848 |
} |
1849 |
/* reset modified pages */
|
1850 |
if (page_max >= page_min) {
|
1851 |
memory_region_reset_dirty(&s->vram, |
1852 |
page_min, |
1853 |
page_max - page_min, |
1854 |
DIRTY_MEMORY_VGA); |
1855 |
} |
1856 |
memset(s->invalidated_y_table, 0, ((height + 31) >> 5) * 4); |
1857 |
} |
1858 |
|
1859 |
static void vga_draw_blank(VGACommonState *s, int full_update) |
1860 |
{ |
1861 |
DisplaySurface *surface = qemu_console_surface(s->con); |
1862 |
int i, w, val;
|
1863 |
uint8_t *d; |
1864 |
|
1865 |
if (!full_update)
|
1866 |
return;
|
1867 |
if (s->last_scr_width <= 0 || s->last_scr_height <= 0) |
1868 |
return;
|
1869 |
|
1870 |
s->rgb_to_pixel = |
1871 |
rgb_to_pixel_dup_table[get_depth_index(surface)]; |
1872 |
if (surface_bits_per_pixel(surface) == 8) { |
1873 |
val = s->rgb_to_pixel(0, 0, 0); |
1874 |
} else {
|
1875 |
val = 0;
|
1876 |
} |
1877 |
w = s->last_scr_width * surface_bytes_per_pixel(surface); |
1878 |
d = surface_data(surface); |
1879 |
for(i = 0; i < s->last_scr_height; i++) { |
1880 |
memset(d, val, w); |
1881 |
d += surface_stride(surface); |
1882 |
} |
1883 |
dpy_gfx_update(s->con, 0, 0, |
1884 |
s->last_scr_width, s->last_scr_height); |
1885 |
} |
1886 |
|
1887 |
#define GMODE_TEXT 0 |
1888 |
#define GMODE_GRAPH 1 |
1889 |
#define GMODE_BLANK 2 |
1890 |
|
1891 |
static void vga_update_display(void *opaque) |
1892 |
{ |
1893 |
VGACommonState *s = opaque; |
1894 |
DisplaySurface *surface = qemu_console_surface(s->con); |
1895 |
int full_update, graphic_mode;
|
1896 |
|
1897 |
qemu_flush_coalesced_mmio_buffer(); |
1898 |
|
1899 |
if (surface_bits_per_pixel(surface) == 0) { |
1900 |
/* nothing to do */
|
1901 |
} else {
|
1902 |
full_update = 0;
|
1903 |
if (!(s->ar_index & 0x20)) { |
1904 |
graphic_mode = GMODE_BLANK; |
1905 |
} else {
|
1906 |
graphic_mode = s->gr[VGA_GFX_MISC] & VGA_GR06_GRAPHICS_MODE; |
1907 |
} |
1908 |
if (graphic_mode != s->graphic_mode) {
|
1909 |
s->graphic_mode = graphic_mode; |
1910 |
s->cursor_blink_time = qemu_get_clock_ms(vm_clock); |
1911 |
full_update = 1;
|
1912 |
} |
1913 |
switch(graphic_mode) {
|
1914 |
case GMODE_TEXT:
|
1915 |
vga_draw_text(s, full_update); |
1916 |
break;
|
1917 |
case GMODE_GRAPH:
|
1918 |
vga_draw_graphic(s, full_update); |
1919 |
break;
|
1920 |
case GMODE_BLANK:
|
1921 |
default:
|
1922 |
vga_draw_blank(s, full_update); |
1923 |
break;
|
1924 |
} |
1925 |
} |
1926 |
} |
1927 |
|
1928 |
/* force a full display refresh */
|
1929 |
static void vga_invalidate_display(void *opaque) |
1930 |
{ |
1931 |
VGACommonState *s = opaque; |
1932 |
|
1933 |
s->last_width = -1;
|
1934 |
s->last_height = -1;
|
1935 |
} |
1936 |
|
1937 |
void vga_common_reset(VGACommonState *s)
|
1938 |
{ |
1939 |
s->sr_index = 0;
|
1940 |
memset(s->sr, '\0', sizeof(s->sr)); |
1941 |
s->gr_index = 0;
|
1942 |
memset(s->gr, '\0', sizeof(s->gr)); |
1943 |
s->ar_index = 0;
|
1944 |
memset(s->ar, '\0', sizeof(s->ar)); |
1945 |
s->ar_flip_flop = 0;
|
1946 |
s->cr_index = 0;
|
1947 |
memset(s->cr, '\0', sizeof(s->cr)); |
1948 |
s->msr = 0;
|
1949 |
s->fcr = 0;
|
1950 |
s->st00 = 0;
|
1951 |
s->st01 = 0;
|
1952 |
s->dac_state = 0;
|
1953 |
s->dac_sub_index = 0;
|
1954 |
s->dac_read_index = 0;
|
1955 |
s->dac_write_index = 0;
|
1956 |
memset(s->dac_cache, '\0', sizeof(s->dac_cache)); |
1957 |
s->dac_8bit = 0;
|
1958 |
memset(s->palette, '\0', sizeof(s->palette)); |
1959 |
s->bank_offset = 0;
|
1960 |
s->vbe_index = 0;
|
1961 |
memset(s->vbe_regs, '\0', sizeof(s->vbe_regs)); |
1962 |
s->vbe_regs[VBE_DISPI_INDEX_ID] = VBE_DISPI_ID5; |
1963 |
s->vbe_start_addr = 0;
|
1964 |
s->vbe_line_offset = 0;
|
1965 |
s->vbe_bank_mask = (s->vram_size >> 16) - 1; |
1966 |
memset(s->font_offsets, '\0', sizeof(s->font_offsets)); |
1967 |
s->graphic_mode = -1; /* force full update */ |
1968 |
s->shift_control = 0;
|
1969 |
s->double_scan = 0;
|
1970 |
s->line_offset = 0;
|
1971 |
s->line_compare = 0;
|
1972 |
s->start_addr = 0;
|
1973 |
s->plane_updated = 0;
|
1974 |
s->last_cw = 0;
|
1975 |
s->last_ch = 0;
|
1976 |
s->last_width = 0;
|
1977 |
s->last_height = 0;
|
1978 |
s->last_scr_width = 0;
|
1979 |
s->last_scr_height = 0;
|
1980 |
s->cursor_start = 0;
|
1981 |
s->cursor_end = 0;
|
1982 |
s->cursor_offset = 0;
|
1983 |
memset(s->invalidated_y_table, '\0', sizeof(s->invalidated_y_table)); |
1984 |
memset(s->last_palette, '\0', sizeof(s->last_palette)); |
1985 |
memset(s->last_ch_attr, '\0', sizeof(s->last_ch_attr)); |
1986 |
switch (vga_retrace_method) {
|
1987 |
case VGA_RETRACE_DUMB:
|
1988 |
break;
|
1989 |
case VGA_RETRACE_PRECISE:
|
1990 |
memset(&s->retrace_info, 0, sizeof (s->retrace_info)); |
1991 |
break;
|
1992 |
} |
1993 |
vga_update_memory_access(s); |
1994 |
} |
1995 |
|
1996 |
static void vga_reset(void *opaque) |
1997 |
{ |
1998 |
VGACommonState *s = opaque; |
1999 |
vga_common_reset(s); |
2000 |
} |
2001 |
|
2002 |
#define TEXTMODE_X(x) ((x) % width)
|
2003 |
#define TEXTMODE_Y(x) ((x) / width)
|
2004 |
#define VMEM2CHTYPE(v) ((v & 0xff0007ff) | \ |
2005 |
((v & 0x00000800) << 10) | ((v & 0x00007000) >> 1)) |
2006 |
/* relay text rendering to the display driver
|
2007 |
* instead of doing a full vga_update_display() */
|
2008 |
static void vga_update_text(void *opaque, console_ch_t *chardata) |
2009 |
{ |
2010 |
VGACommonState *s = opaque; |
2011 |
int graphic_mode, i, cursor_offset, cursor_visible;
|
2012 |
int cw, cheight, width, height, size, c_min, c_max;
|
2013 |
uint32_t *src; |
2014 |
console_ch_t *dst, val; |
2015 |
char msg_buffer[80]; |
2016 |
int full_update = 0; |
2017 |
|
2018 |
qemu_flush_coalesced_mmio_buffer(); |
2019 |
|
2020 |
if (!(s->ar_index & 0x20)) { |
2021 |
graphic_mode = GMODE_BLANK; |
2022 |
} else {
|
2023 |
graphic_mode = s->gr[VGA_GFX_MISC] & VGA_GR06_GRAPHICS_MODE; |
2024 |
} |
2025 |
if (graphic_mode != s->graphic_mode) {
|
2026 |
s->graphic_mode = graphic_mode; |
2027 |
full_update = 1;
|
2028 |
} |
2029 |
if (s->last_width == -1) { |
2030 |
s->last_width = 0;
|
2031 |
full_update = 1;
|
2032 |
} |
2033 |
|
2034 |
switch (graphic_mode) {
|
2035 |
case GMODE_TEXT:
|
2036 |
/* TODO: update palette */
|
2037 |
full_update |= update_basic_params(s); |
2038 |
|
2039 |
/* total width & height */
|
2040 |
cheight = (s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1; |
2041 |
cw = 8;
|
2042 |
if (!(s->sr[VGA_SEQ_CLOCK_MODE] & VGA_SR01_CHAR_CLK_8DOTS)) {
|
2043 |
cw = 9;
|
2044 |
} |
2045 |
if (s->sr[VGA_SEQ_CLOCK_MODE] & 0x08) { |
2046 |
cw = 16; /* NOTE: no 18 pixel wide */ |
2047 |
} |
2048 |
width = (s->cr[VGA_CRTC_H_DISP] + 1);
|
2049 |
if (s->cr[VGA_CRTC_V_TOTAL] == 100) { |
2050 |
/* ugly hack for CGA 160x100x16 - explain me the logic */
|
2051 |
height = 100;
|
2052 |
} else {
|
2053 |
height = s->cr[VGA_CRTC_V_DISP_END] | |
2054 |
((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | |
2055 |
((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); |
2056 |
height = (height + 1) / cheight;
|
2057 |
} |
2058 |
|
2059 |
size = (height * width); |
2060 |
if (size > CH_ATTR_SIZE) {
|
2061 |
if (!full_update)
|
2062 |
return;
|
2063 |
|
2064 |
snprintf(msg_buffer, sizeof(msg_buffer), "%i x %i Text mode", |
2065 |
width, height); |
2066 |
break;
|
2067 |
} |
2068 |
|
2069 |
if (width != s->last_width || height != s->last_height ||
|
2070 |
cw != s->last_cw || cheight != s->last_ch) { |
2071 |
s->last_scr_width = width * cw; |
2072 |
s->last_scr_height = height * cheight; |
2073 |
qemu_console_resize(s->con, s->last_scr_width, s->last_scr_height); |
2074 |
dpy_text_resize(s->con, width, height); |
2075 |
s->last_depth = 0;
|
2076 |
s->last_width = width; |
2077 |
s->last_height = height; |
2078 |
s->last_ch = cheight; |
2079 |
s->last_cw = cw; |
2080 |
full_update = 1;
|
2081 |
} |
2082 |
|
2083 |
if (full_update) {
|
2084 |
s->full_update_gfx = 1;
|
2085 |
} |
2086 |
if (s->full_update_text) {
|
2087 |
s->full_update_text = 0;
|
2088 |
full_update |= 1;
|
2089 |
} |
2090 |
|
2091 |
/* Update "hardware" cursor */
|
2092 |
cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) |
|
2093 |
s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr; |
2094 |
if (cursor_offset != s->cursor_offset ||
|
2095 |
s->cr[VGA_CRTC_CURSOR_START] != s->cursor_start || |
2096 |
s->cr[VGA_CRTC_CURSOR_END] != s->cursor_end || full_update) { |
2097 |
cursor_visible = !(s->cr[VGA_CRTC_CURSOR_START] & 0x20);
|
2098 |
if (cursor_visible && cursor_offset < size && cursor_offset >= 0) |
2099 |
dpy_text_cursor(s->con, |
2100 |
TEXTMODE_X(cursor_offset), |
2101 |
TEXTMODE_Y(cursor_offset)); |
2102 |
else
|
2103 |
dpy_text_cursor(s->con, -1, -1); |
2104 |
s->cursor_offset = cursor_offset; |
2105 |
s->cursor_start = s->cr[VGA_CRTC_CURSOR_START]; |
2106 |
s->cursor_end = s->cr[VGA_CRTC_CURSOR_END]; |
2107 |
} |
2108 |
|
2109 |
src = (uint32_t *) s->vram_ptr + s->start_addr; |
2110 |
dst = chardata; |
2111 |
|
2112 |
if (full_update) {
|
2113 |
for (i = 0; i < size; src ++, dst ++, i ++) |
2114 |
console_write_ch(dst, VMEM2CHTYPE(le32_to_cpu(*src))); |
2115 |
|
2116 |
dpy_text_update(s->con, 0, 0, width, height); |
2117 |
} else {
|
2118 |
c_max = 0;
|
2119 |
|
2120 |
for (i = 0; i < size; src ++, dst ++, i ++) { |
2121 |
console_write_ch(&val, VMEM2CHTYPE(le32_to_cpu(*src))); |
2122 |
if (*dst != val) {
|
2123 |
*dst = val; |
2124 |
c_max = i; |
2125 |
break;
|
2126 |
} |
2127 |
} |
2128 |
c_min = i; |
2129 |
for (; i < size; src ++, dst ++, i ++) {
|
2130 |
console_write_ch(&val, VMEM2CHTYPE(le32_to_cpu(*src))); |
2131 |
if (*dst != val) {
|
2132 |
*dst = val; |
2133 |
c_max = i; |
2134 |
} |
2135 |
} |
2136 |
|
2137 |
if (c_min <= c_max) {
|
2138 |
i = TEXTMODE_Y(c_min); |
2139 |
dpy_text_update(s->con, 0, i, width, TEXTMODE_Y(c_max) - i + 1); |
2140 |
} |
2141 |
} |
2142 |
|
2143 |
return;
|
2144 |
case GMODE_GRAPH:
|
2145 |
if (!full_update)
|
2146 |
return;
|
2147 |
|
2148 |
s->get_resolution(s, &width, &height); |
2149 |
snprintf(msg_buffer, sizeof(msg_buffer), "%i x %i Graphic mode", |
2150 |
width, height); |
2151 |
break;
|
2152 |
case GMODE_BLANK:
|
2153 |
default:
|
2154 |
if (!full_update)
|
2155 |
return;
|
2156 |
|
2157 |
snprintf(msg_buffer, sizeof(msg_buffer), "VGA Blank mode"); |
2158 |
break;
|
2159 |
} |
2160 |
|
2161 |
/* Display a message */
|
2162 |
s->last_width = 60;
|
2163 |
s->last_height = height = 3;
|
2164 |
dpy_text_cursor(s->con, -1, -1); |
2165 |
dpy_text_resize(s->con, s->last_width, height); |
2166 |
|
2167 |
for (dst = chardata, i = 0; i < s->last_width * height; i ++) |
2168 |
console_write_ch(dst ++, ' ');
|
2169 |
|
2170 |
size = strlen(msg_buffer); |
2171 |
width = (s->last_width - size) / 2;
|
2172 |
dst = chardata + s->last_width + width; |
2173 |
for (i = 0; i < size; i ++) |
2174 |
console_write_ch(dst ++, 0x00200100 | msg_buffer[i]);
|
2175 |
|
2176 |
dpy_text_update(s->con, 0, 0, s->last_width, height); |
2177 |
} |
2178 |
|
2179 |
static uint64_t vga_mem_read(void *opaque, hwaddr addr, |
2180 |
unsigned size)
|
2181 |
{ |
2182 |
VGACommonState *s = opaque; |
2183 |
|
2184 |
return vga_mem_readb(s, addr);
|
2185 |
} |
2186 |
|
2187 |
static void vga_mem_write(void *opaque, hwaddr addr, |
2188 |
uint64_t data, unsigned size)
|
2189 |
{ |
2190 |
VGACommonState *s = opaque; |
2191 |
|
2192 |
return vga_mem_writeb(s, addr, data);
|
2193 |
} |
2194 |
|
2195 |
const MemoryRegionOps vga_mem_ops = {
|
2196 |
.read = vga_mem_read, |
2197 |
.write = vga_mem_write, |
2198 |
.endianness = DEVICE_LITTLE_ENDIAN, |
2199 |
.impl = { |
2200 |
.min_access_size = 1,
|
2201 |
.max_access_size = 1,
|
2202 |
}, |
2203 |
}; |
2204 |
|
2205 |
static int vga_common_post_load(void *opaque, int version_id) |
2206 |
{ |
2207 |
VGACommonState *s = opaque; |
2208 |
|
2209 |
/* force refresh */
|
2210 |
s->graphic_mode = -1;
|
2211 |
return 0; |
2212 |
} |
2213 |
|
2214 |
const VMStateDescription vmstate_vga_common = {
|
2215 |
.name = "vga",
|
2216 |
.version_id = 2,
|
2217 |
.minimum_version_id = 2,
|
2218 |
.minimum_version_id_old = 2,
|
2219 |
.post_load = vga_common_post_load, |
2220 |
.fields = (VMStateField []) { |
2221 |
VMSTATE_UINT32(latch, VGACommonState), |
2222 |
VMSTATE_UINT8(sr_index, VGACommonState), |
2223 |
VMSTATE_PARTIAL_BUFFER(sr, VGACommonState, 8),
|
2224 |
VMSTATE_UINT8(gr_index, VGACommonState), |
2225 |
VMSTATE_PARTIAL_BUFFER(gr, VGACommonState, 16),
|
2226 |
VMSTATE_UINT8(ar_index, VGACommonState), |
2227 |
VMSTATE_BUFFER(ar, VGACommonState), |
2228 |
VMSTATE_INT32(ar_flip_flop, VGACommonState), |
2229 |
VMSTATE_UINT8(cr_index, VGACommonState), |
2230 |
VMSTATE_BUFFER(cr, VGACommonState), |
2231 |
VMSTATE_UINT8(msr, VGACommonState), |
2232 |
VMSTATE_UINT8(fcr, VGACommonState), |
2233 |
VMSTATE_UINT8(st00, VGACommonState), |
2234 |
VMSTATE_UINT8(st01, VGACommonState), |
2235 |
|
2236 |
VMSTATE_UINT8(dac_state, VGACommonState), |
2237 |
VMSTATE_UINT8(dac_sub_index, VGACommonState), |
2238 |
VMSTATE_UINT8(dac_read_index, VGACommonState), |
2239 |
VMSTATE_UINT8(dac_write_index, VGACommonState), |
2240 |
VMSTATE_BUFFER(dac_cache, VGACommonState), |
2241 |
VMSTATE_BUFFER(palette, VGACommonState), |
2242 |
|
2243 |
VMSTATE_INT32(bank_offset, VGACommonState), |
2244 |
VMSTATE_UINT8_EQUAL(is_vbe_vmstate, VGACommonState), |
2245 |
VMSTATE_UINT16(vbe_index, VGACommonState), |
2246 |
VMSTATE_UINT16_ARRAY(vbe_regs, VGACommonState, VBE_DISPI_INDEX_NB), |
2247 |
VMSTATE_UINT32(vbe_start_addr, VGACommonState), |
2248 |
VMSTATE_UINT32(vbe_line_offset, VGACommonState), |
2249 |
VMSTATE_UINT32(vbe_bank_mask, VGACommonState), |
2250 |
VMSTATE_END_OF_LIST() |
2251 |
} |
2252 |
}; |
2253 |
|
2254 |
static const GraphicHwOps vga_ops = { |
2255 |
.invalidate = vga_invalidate_display, |
2256 |
.gfx_update = vga_update_display, |
2257 |
.text_update = vga_update_text, |
2258 |
}; |
2259 |
|
2260 |
void vga_common_init(VGACommonState *s, Object *obj)
|
2261 |
{ |
2262 |
int i, j, v, b;
|
2263 |
|
2264 |
for(i = 0;i < 256; i++) { |
2265 |
v = 0;
|
2266 |
for(j = 0; j < 8; j++) { |
2267 |
v |= ((i >> j) & 1) << (j * 4); |
2268 |
} |
2269 |
expand4[i] = v; |
2270 |
|
2271 |
v = 0;
|
2272 |
for(j = 0; j < 4; j++) { |
2273 |
v |= ((i >> (2 * j)) & 3) << (j * 4); |
2274 |
} |
2275 |
expand2[i] = v; |
2276 |
} |
2277 |
for(i = 0; i < 16; i++) { |
2278 |
v = 0;
|
2279 |
for(j = 0; j < 4; j++) { |
2280 |
b = ((i >> j) & 1);
|
2281 |
v |= b << (2 * j);
|
2282 |
v |= b << (2 * j + 1); |
2283 |
} |
2284 |
expand4to8[i] = v; |
2285 |
} |
2286 |
|
2287 |
/* valid range: 1 MB -> 256 MB */
|
2288 |
s->vram_size = 1024 * 1024; |
2289 |
while (s->vram_size < (s->vram_size_mb << 20) && |
2290 |
s->vram_size < (256 << 20)) { |
2291 |
s->vram_size <<= 1;
|
2292 |
} |
2293 |
s->vram_size_mb = s->vram_size >> 20;
|
2294 |
|
2295 |
s->is_vbe_vmstate = 1;
|
2296 |
memory_region_init_ram(&s->vram, obj, "vga.vram", s->vram_size);
|
2297 |
vmstate_register_ram_global(&s->vram); |
2298 |
xen_register_framebuffer(&s->vram); |
2299 |
s->vram_ptr = memory_region_get_ram_ptr(&s->vram); |
2300 |
s->get_bpp = vga_get_bpp; |
2301 |
s->get_offsets = vga_get_offsets; |
2302 |
s->get_resolution = vga_get_resolution; |
2303 |
s->hw_ops = &vga_ops; |
2304 |
switch (vga_retrace_method) {
|
2305 |
case VGA_RETRACE_DUMB:
|
2306 |
s->retrace = vga_dumb_retrace; |
2307 |
s->update_retrace_info = vga_dumb_update_retrace_info; |
2308 |
break;
|
2309 |
|
2310 |
case VGA_RETRACE_PRECISE:
|
2311 |
s->retrace = vga_precise_retrace; |
2312 |
s->update_retrace_info = vga_precise_update_retrace_info; |
2313 |
break;
|
2314 |
} |
2315 |
vga_dirty_log_start(s); |
2316 |
} |
2317 |
|
2318 |
static const MemoryRegionPortio vga_portio_list[] = { |
2319 |
{ 0x04, 2, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3b4 */ |
2320 |
{ 0x0a, 1, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3ba */ |
2321 |
{ 0x10, 16, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3c0 */ |
2322 |
{ 0x24, 2, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3d4 */ |
2323 |
{ 0x2a, 1, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3da */ |
2324 |
PORTIO_END_OF_LIST(), |
2325 |
}; |
2326 |
|
2327 |
static const MemoryRegionPortio vbe_portio_list[] = { |
2328 |
{ 0, 1, 2, .read = vbe_ioport_read_index, .write = vbe_ioport_write_index }, |
2329 |
# ifdef TARGET_I386
|
2330 |
{ 1, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, |
2331 |
# endif
|
2332 |
{ 2, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, |
2333 |
PORTIO_END_OF_LIST(), |
2334 |
}; |
2335 |
|
2336 |
/* Used by both ISA and PCI */
|
2337 |
MemoryRegion *vga_init_io(VGACommonState *s, Object *obj, |
2338 |
const MemoryRegionPortio **vga_ports,
|
2339 |
const MemoryRegionPortio **vbe_ports)
|
2340 |
{ |
2341 |
MemoryRegion *vga_mem; |
2342 |
|
2343 |
*vga_ports = vga_portio_list; |
2344 |
*vbe_ports = vbe_portio_list; |
2345 |
|
2346 |
vga_mem = g_malloc(sizeof(*vga_mem));
|
2347 |
memory_region_init_io(vga_mem, obj, &vga_mem_ops, s, |
2348 |
"vga-lowmem", 0x20000); |
2349 |
memory_region_set_flush_coalesced(vga_mem); |
2350 |
|
2351 |
return vga_mem;
|
2352 |
} |
2353 |
|
2354 |
void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
|
2355 |
MemoryRegion *address_space_io, bool init_vga_ports)
|
2356 |
{ |
2357 |
MemoryRegion *vga_io_memory; |
2358 |
const MemoryRegionPortio *vga_ports, *vbe_ports;
|
2359 |
PortioList *vga_port_list = g_new(PortioList, 1);
|
2360 |
PortioList *vbe_port_list = g_new(PortioList, 1);
|
2361 |
|
2362 |
qemu_register_reset(vga_reset, s); |
2363 |
|
2364 |
s->bank_offset = 0;
|
2365 |
|
2366 |
s->legacy_address_space = address_space; |
2367 |
|
2368 |
vga_io_memory = vga_init_io(s, obj, &vga_ports, &vbe_ports); |
2369 |
memory_region_add_subregion_overlap(address_space, |
2370 |
isa_mem_base + 0x000a0000,
|
2371 |
vga_io_memory, |
2372 |
1);
|
2373 |
memory_region_set_coalescing(vga_io_memory); |
2374 |
if (init_vga_ports) {
|
2375 |
portio_list_init(vga_port_list, vga_ports, s, "vga");
|
2376 |
portio_list_add(vga_port_list, address_space_io, 0x3b0);
|
2377 |
} |
2378 |
if (vbe_ports) {
|
2379 |
portio_list_init(vbe_port_list, vbe_ports, s, "vbe");
|
2380 |
portio_list_add(vbe_port_list, address_space_io, 0x1ce);
|
2381 |
} |
2382 |
} |
2383 |
|
2384 |
void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *system_memory)
|
2385 |
{ |
2386 |
/* With pc-0.12 and below we map both the PCI BAR and the fixed VBE region,
|
2387 |
* so use an alias to avoid double-mapping the same region.
|
2388 |
*/
|
2389 |
memory_region_init_alias(&s->vram_vbe, obj, "vram.vbe",
|
2390 |
&s->vram, 0, memory_region_size(&s->vram));
|
2391 |
/* XXX: use optimized standard vga accesses */
|
2392 |
memory_region_add_subregion(system_memory, |
2393 |
VBE_DISPI_LFB_PHYSICAL_ADDRESS, |
2394 |
&s->vram_vbe); |
2395 |
s->vbe_mapped = 1;
|
2396 |
} |