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vga: refactor

This commit is contained in:
Zihao Yu 2024-01-10 10:55:13 +08:00
parent 03f4bf79c2
commit 23cd183fea
1 changed files with 11 additions and 11 deletions
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22
src/vga.cpp
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@ -24,12 +24,18 @@ VGA::VGA(SDL_Renderer *rend, int cnt, int init_val, int ct):
Component(rend, cnt, init_val, ct),
vga_screen_width(VGA_DEFAULT_WIDTH), vga_screen_height(VGA_DEFAULT_HEIGHT),
vga_clk_cnt(1) {
SDL_Texture *temp_texture = SDL_CreateTexture(rend, SDL_PIXELFORMAT_ARGB8888,
SDL_Texture *vga_texture = SDL_CreateTexture(rend, SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_STREAMING, vga_screen_width, vga_screen_height);
set_texture(temp_texture, 0);
set_texture(vga_texture, 0);
pixels = new uint32_t[vga_screen_width * vga_screen_height];
memset(pixels, 0, vga_screen_width * vga_screen_height * sizeof(uint32_t));
SDL_Rect *rect_ptr = new SDL_Rect;
*rect_ptr = (SDL_Rect){0, WINDOW_HEIGHT / 2, VGA_DEFAULT_WIDTH, VGA_DEFAULT_HEIGHT};
set_rect(rect_ptr, 0);
SDL_UpdateTexture(vga_texture, NULL, pixels, vga_screen_width * sizeof(uint32_t));
SDL_RenderCopy(rend, vga_texture, NULL, rect_ptr);
is_r_len8 = pin_array[VGA_R0].vector_len == 8;
is_g_len8 = pin_array[VGA_G0].vector_len == 8;
is_b_len8 = pin_array[VGA_B0].vector_len == 8;
@ -55,12 +61,9 @@ void VGA::update_gui() {
frames ++;
printf("%d frames\n", frames);
#endif
SDL_Texture *temp_texture = get_texture(0);
SDL_Renderer *temp_renderer = get_renderer();
SDL_Rect *temp_rect = get_rect(0);
SDL_UpdateTexture(temp_texture, NULL, pixels, vga_screen_width * sizeof(uint32_t));
//SDL_RenderClear(temp_renderer);
SDL_RenderCopy(temp_renderer, temp_texture, NULL, temp_rect);
SDL_Texture *vga_texture = get_texture(0);
SDL_UpdateTexture(vga_texture, NULL, pixels, vga_screen_width * sizeof(uint32_t));
SDL_RenderCopy(get_renderer(), vga_texture, NULL, get_rect(0));
set_redraw();
}
@ -125,9 +128,6 @@ static void init_render_local(SDL_Renderer *renderer) {
void init_vga(SDL_Renderer *renderer) {
init_render_local(renderer);
vga = new VGA(renderer, 1, 0, VGA_TYPE);
SDL_Rect *rect_ptr = new SDL_Rect;
*rect_ptr = (SDL_Rect){0, WINDOW_HEIGHT / 2, VGA_DEFAULT_WIDTH, VGA_DEFAULT_HEIGHT};
vga->set_rect(rect_ptr, 0);
for (int p = VGA_VSYNC; p <= VGA_B7; p ++) {
vga->add_pin(p);
}