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better font rendering browser

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boreddevnl
2026-03-03 21:22:05 +01:00
parent 3c7d36a50f
commit 4083b8a563
13 changed files with 338 additions and 27 deletions
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18
src/kernel/userland/libc/libui.c
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@@ -57,3 +57,21 @@ uint32_t ui_get_string_width(const char *str) {
uint32_t ui_get_font_height(void) {
return (uint32_t)syscall3(SYS_GUI, GUI_CMD_GET_FONT_HEIGHT, 0, 0);
}
void ui_draw_string_scaled(ui_window_t win, int x, int y, const char *str, uint32_t color, float scale) {
uint64_t coords = ((uint64_t)x & 0xFFFFFFFF) | ((uint64_t)y << 32);
// Pack color into lower 32, scale (as uint32_t representation) into upper 32
uint32_t scale_bits = *(uint32_t*)&scale;
uint64_t packed_arg5 = ((uint64_t)scale_bits << 32) | (color & 0xFFFFFFFF);
syscall5(SYS_GUI, GUI_CMD_DRAW_STRING_SCALED, (uint64_t)win, coords, (uint64_t)str, packed_arg5);
}
uint32_t ui_get_string_width_scaled(const char *str, float scale) {
uint32_t scale_bits = *(uint32_t*)&scale;
return (uint32_t)syscall4(SYS_GUI, GUI_CMD_GET_STRING_WIDTH_SCALED, (uint64_t)str, (uint64_t)scale_bits, 0);
}
uint32_t ui_get_font_height_scaled(float scale) {
uint32_t scale_bits = *(uint32_t*)&scale;
return (uint32_t)syscall3(SYS_GUI, GUI_CMD_GET_FONT_HEIGHT_SCALED, (uint64_t)scale_bits, 0);
}

7
src/kernel/userland/libc/libui.h
View File

@@ -15,6 +15,9 @@
#define GUI_CMD_GET_STRING_WIDTH 8
#define GUI_CMD_GET_FONT_HEIGHT 9
#define GUI_CMD_DRAW_STRING_BITMAP 10
#define GUI_CMD_DRAW_STRING_SCALED 11
#define GUI_CMD_GET_STRING_WIDTH_SCALED 12
#define GUI_CMD_GET_FONT_HEIGHT_SCALED 13
// Event Types
#define GUI_EVENT_NONE 0
@@ -52,4 +55,8 @@ uint32_t ui_get_string_width(const char *str);
uint32_t ui_get_font_height(void);
void ui_draw_string_bitmap(ui_window_t win, int x, int y, const char *str, uint32_t color);
void ui_draw_string_scaled(ui_window_t win, int x, int y, const char *str, uint32_t color, float scale);
uint32_t ui_get_string_width_scaled(const char *str, float scale);
uint32_t ui_get_font_height_scaled(float scale);
#endif