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feature (kernel): graphics buffer string draw function returns now the updated position

This commit is contained in:
antifallobst 2023-02-22 13:28:09 +01:00
parent 08c7f32349
commit 7b467b1cd5
2 changed files with 13 additions and 11 deletions
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3
kernel/inc/drivers/graphics/renderer.h
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@ -18,6 +18,7 @@
#include "utils/stdtypes.h"
#include "utils/string.h"
#include "utils/math.h"
#include "drivers/graphics/color.h"
#include "drivers/graphics/font.h"
#include "drivers/graphics/framebuffer.h"
@ -57,7 +58,7 @@ void graphics_buffer_destruct (graphics_buffer_T* grap
void graphics_buffer_set_pixel (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color);
color_argb_T graphics_buffer_get_pixel (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y);
void graphics_buffer_draw_char (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color, char chr);
void graphics_buffer_draw_string (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color, string_t string);
position_T graphics_buffer_draw_string (graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color, string_t string);
void graphics_renderer_init (boot_info_T* boot_info);
void graphics_renderer_update ();

21
kernel/src/drivers/graphics/renderer.c
View File

@ -15,7 +15,6 @@
#include "drivers/graphics/renderer.h"
#include "utils/memory.h"
#include "utils/math.h"
#include "utils/core.h"
graphics_renderer_T g_renderer;
@ -82,36 +81,38 @@ void graphics_buffer_draw_char(graphics_buffer_T* graphics_buffer, uint32_t x, u
}
}
void graphics_buffer_draw_string(graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color, string_t string) {
position_T graphics_buffer_draw_string(graphics_buffer_T* graphics_buffer, uint32_t x, uint32_t y, color_argb_T color, string_t string) {
CORE_HALT_WHILE(graphics_buffer->blocked)
graphics_buffer->blocked = true;
position_T pos = (position_T){x, y};
uint64_t strlen = string_length(string);
for (int i = 0; i < strlen; i++) {
switch (string[i]) {
case '\n': {
x = 0;
y += g_renderer.font.height;
pos.x = 0;
pos.y += g_renderer.font.height;
break;
}
case '\r': {
x = 0;
pos.x = 0;
break;
}
default: {
if (x + g_renderer.font.width >= graphics_buffer->width) {
x = 0;
y += g_renderer.font.height;
if (pos.x + g_renderer.font.width >= graphics_buffer->width) {
pos.x = 0;
pos.y += g_renderer.font.height;
}
graphics_buffer_draw_char(graphics_buffer, x, y, color, string[i]);
x += g_renderer.font.width;
graphics_buffer_draw_char(graphics_buffer, pos.x, pos.y, color, string[i]);
pos.x += g_renderer.font.width;
break;
}
}
}
graphics_buffer->blocked = false;
return pos;
}
void graphics_renderer_init(boot_info_T* boot_info_T) {