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V1.62 bug fixes

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This commit is contained in:
Chris
2026-02-24 22:45:24 +01:00
parent 106adf1ac8
commit 6e2f0d8c1a
20 changed files with 246 additions and 221 deletions
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40
src/kernel/graphics.c
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@@ -31,6 +31,11 @@ static uint32_t g_back_buffer[MAX_FB_WIDTH * MAX_FB_HEIGHT] __attribute__((align
static int g_clip_x = 0, g_clip_y = 0, g_clip_w = 0, g_clip_h = 0;
static bool g_clip_enabled = false;
// Custom Render Target
static uint32_t *g_render_target = NULL;
static int g_rt_width = 0;
static int g_rt_height = 0;
void graphics_init(struct limine_framebuffer *fb) {
g_fb = fb;
g_dirty.active = false;
@@ -123,7 +128,21 @@ void graphics_clear_dirty(void) {
asm volatile("push %0; popfq" : : "r"(rflags));
}
void graphics_set_render_target(uint32_t *buffer, int w, int h) {
g_render_target = buffer;
g_rt_width = w;
g_rt_height = h;
}
void put_pixel(int x, int y, uint32_t color) {
if (g_render_target) {
if (x >= 0 && x < g_rt_width && y >= 0 && y < g_rt_height) {
// No clipping in custom render targets yet, just bounding box
g_render_target[y * g_rt_width + x] = color;
}
return;
}
if (!g_fb) return;
if (x < 0 || x >= (int)g_fb->width || y < 0 || y >= (int)g_fb->height) return;
@@ -140,9 +159,26 @@ void put_pixel(int x, int y, uint32_t color) {
}
void draw_rect(int x, int y, int w, int h, uint32_t color) {
if (!g_fb) return;
int x1 = x, y1 = y, x2 = x + w, y2 = y + h;
if (g_render_target) {
if (x1 < 0) x1 = 0;
if (y1 < 0) y1 = 0;
if (x2 > g_rt_width) x2 = g_rt_width;
if (y2 > g_rt_height) y2 = g_rt_height;
if (x1 >= x2 || y1 >= y2) return;
for (int i = y1; i < y2; i++) {
uint32_t *row = &g_render_target[i * g_rt_width + x1];
int len = x2 - x1;
for (int j = 0; j < len; j++) {
row[j] = color;
}
}
return;
}
if (!g_fb) return;
if (g_clip_enabled) {
if (x1 < g_clip_x) x1 = g_clip_x;