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NJU-ProjectN/nemu ics2023 initialized

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NJU-ProjectN/nemu eb63cf3568dbf4e0c3c6ef462e6ec685550fabbc Merge pull request #76 from rijuyuezhu/master
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xinyangli 2023-12-21 00:20:36 +08:00
parent 1efe03efb9
commit 2824efad33
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nemu/src/device/vga.c Normal file
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/***************************************************************************************
* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
*
* NEMU is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
*
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
*
* See the Mulan PSL v2 for more details.
***************************************************************************************/
#include <common.h>
#include <device/map.h>
#define SCREEN_W (MUXDEF(CONFIG_VGA_SIZE_800x600, 800, 400))
#define SCREEN_H (MUXDEF(CONFIG_VGA_SIZE_800x600, 600, 300))
static uint32_t screen_width() {
return MUXDEF(CONFIG_TARGET_AM, io_read(AM_GPU_CONFIG).width, SCREEN_W);
}
static uint32_t screen_height() {
return MUXDEF(CONFIG_TARGET_AM, io_read(AM_GPU_CONFIG).height, SCREEN_H);
}
static uint32_t screen_size() {
return screen_width() * screen_height() * sizeof(uint32_t);
}
static void *vmem = NULL;
static uint32_t *vgactl_port_base = NULL;
#ifdef CONFIG_VGA_SHOW_SCREEN
#ifndef CONFIG_TARGET_AM
#include <SDL2/SDL.h>
static SDL_Renderer *renderer = NULL;
static SDL_Texture *texture = NULL;
static void init_screen() {
SDL_Window *window = NULL;
char title[128];
sprintf(title, "%s-NEMU", str(__GUEST_ISA__));
SDL_Init(SDL_INIT_VIDEO);
SDL_CreateWindowAndRenderer(
SCREEN_W * (MUXDEF(CONFIG_VGA_SIZE_400x300, 2, 1)),
SCREEN_H * (MUXDEF(CONFIG_VGA_SIZE_400x300, 2, 1)),
0, &window, &renderer);
SDL_SetWindowTitle(window, title);
texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_STATIC, SCREEN_W, SCREEN_H);
SDL_RenderPresent(renderer);
}
static inline void update_screen() {
SDL_UpdateTexture(texture, NULL, vmem, SCREEN_W * sizeof(uint32_t));
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
}
#else
static void init_screen() {}
static inline void update_screen() {
io_write(AM_GPU_FBDRAW, 0, 0, vmem, screen_width(), screen_height(), true);
}
#endif
#endif
void vga_update_screen() {
// TODO: call `update_screen()` when the sync register is non-zero,
// then zero out the sync register
}
void init_vga() {
vgactl_port_base = (uint32_t *)new_space(8);
vgactl_port_base[0] = (screen_width() << 16) | screen_height();
#ifdef CONFIG_HAS_PORT_IO
add_pio_map ("vgactl", CONFIG_VGA_CTL_PORT, vgactl_port_base, 8, NULL);
#else
add_mmio_map("vgactl", CONFIG_VGA_CTL_MMIO, vgactl_port_base, 8, NULL);
#endif
vmem = new_space(screen_size());
add_mmio_map("vmem", CONFIG_FB_ADDR, vmem, screen_size(), NULL);
IFDEF(CONFIG_VGA_SHOW_SCREEN, init_screen());
IFDEF(CONFIG_VGA_SHOW_SCREEN, memset(vmem, 0, screen_size()));
}