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Создание модуля TGA

This commit is contained in:
Aren Elchinyan 2023-12-16 00:12:39 +03:00
parent 8ca0335c8f
commit f4d5158799
3 changed files with 52 additions and 41 deletions
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9
configs/limine.cfg
View File

@ -15,9 +15,6 @@ TERM_WALLPAPER=boot:///boot.jpg
KASLR=no
KERNEL_PATH=boot:///kernel.elf
MODULE_PATH=boot:///mod/cpubench.ko
MODULE_CMDLINE=[MOD]cpubench.ko
MODULE_PATH=boot:///mod/simd.ko
MODULE_CMDLINE=[MOD]simd.ko
@ -33,5 +30,11 @@ TERM_WALLPAPER=boot:///boot.jpg
MODULE_PATH=boot:///mod/ps2.ko
MODULE_CMDLINE=[MOD]ps2.ko
MODULE_PATH=boot:///mod/cpubench.ko
MODULE_CMDLINE=[MOD]cpubench.ko
MODULE_PATH=boot:///mod/tga.ko
MODULE_CMDLINE=[MOD]tga.ko
MODULE_PATH=boot:///boot.tga
MODULE_CMDLINE=[BOOTIMG]

17
modules/tga/build.sh Normal file
View File

@ -0,0 +1,17 @@
#/bin/sh
echo "Название: TGA"
echo "Лицензия: Публичное достояние"
CC="gcc"
ARCH_FLAGS="-ffreestanding -O0 -g -fPIC -static -nostdlib "
if [ -d "../../sdk" ]; then
CC="../../sdk/bin/x86_64-elf-gcc"
fi
$CC $ARCH_FLAGS -I../../modlib -finput-charset=UTF-8 -fexec-charset=cp1251 -c main.c -o tga.o
$CC $ARCH_FLAGS -T ../link.ld -Wl,--entry=init,--build-id=none tga.o -o tga.ko
cp tga.ko ../bin/
echo "Сборка завершена, файл: tga.ko"

67
kernel/main/main.c → modules/tga/main.c
View File

@ -1,19 +1,6 @@
/**
* main.c
* Точка входа окончания загрузки
*
* Функции эффектов после полной инициализации ядра
*
*/
#include <system.h>
#include <fb.h>
#include <mem.h>
#include <tool.h>
#define TGA_ERR( ) LOG("Ошибка декодирования TGA на строчке: %u\n", __LINE__);
extern void *bootpng_ptr;
extern uint64_t bootpng_size;
#define TGA_ERR( ) fb_printf("Ошибка декодирования TGA на строчке: %u\n", __LINE__);
typedef struct {
unsigned char magic1; // должно быть нулевым
@ -29,25 +16,21 @@ typedef struct {
unsigned char pixeltype; // должно быть 40
} __attribute__((packed)) tga_header_t;
unsigned int *tga_parse(unsigned char *ptr, int size) {
static unsigned int *tga_parse(unsigned char *ptr, int size) {
unsigned int *data;
int i, j, k, x, y, w = (ptr[13] << 8) + ptr[12], h = (ptr[15] << 8) + ptr[14], o = (ptr[11] << 8) + ptr[10];
int m = ((ptr[1] ? (ptr[7] >> 3) * ptr[5] : 0) + 18);
if (w < 1 || h < 1) return NULL;
data = (unsigned int *)mem_alloc((w * h + 2) * sizeof(unsigned int));
if (!data) {
LOG("Ошибка декодирования TGA на строчке: %u, %x, %u kb\n", __LINE__, data,
((w * h + 2) * sizeof(unsigned int)) / 1024);
return NULL;
}
data = (unsigned int *)alloc((w * h + 2) * sizeof(unsigned int));
if (!data) { return NULL; }
switch (ptr[2]) {
case 1:
if (ptr[6] != 0 || ptr[4] != 0 || ptr[3] != 0 || (ptr[7] != 24 && ptr[7] != 32)) {
TGA_ERR( );
mem_free(data);
free(data);
return NULL;
}
for (y = i = 0; y < h; y++) {
@ -62,7 +45,7 @@ unsigned int *tga_parse(unsigned char *ptr, int size) {
case 2:
if (ptr[5] != 0 || ptr[6] != 0 || ptr[1] != 0 || (ptr[16] != 24 && ptr[16] != 32)) {
TGA_ERR( );
mem_free(data);
free(data);
return NULL;
}
for (y = i = 0; y < h; y++) {
@ -77,7 +60,7 @@ unsigned int *tga_parse(unsigned char *ptr, int size) {
case 9:
if (ptr[6] != 0 || ptr[4] != 0 || ptr[3] != 0 || (ptr[7] != 24 && ptr[7] != 32)) {
TGA_ERR( );
mem_free(data);
free(data);
return NULL;
}
y = i = 0;
@ -113,7 +96,7 @@ unsigned int *tga_parse(unsigned char *ptr, int size) {
case 10:
if (ptr[5] != 0 || ptr[6] != 0 || ptr[1] != 0 || (ptr[16] != 24 && ptr[16] != 32)) {
TGA_ERR( );
mem_free(data);
free(data);
return NULL;
}
y = i = 0;
@ -148,7 +131,7 @@ unsigned int *tga_parse(unsigned char *ptr, int size) {
break;
default: {
TGA_ERR( );
mem_free(data);
free(data);
return NULL;
}
}
@ -156,17 +139,25 @@ unsigned int *tga_parse(unsigned char *ptr, int size) {
data[1] = h;
return data;
}
void main( ) {
for (uint64_t i = 512; i > 1; i--) { pause( ); }
LOG("Загрузка завершена! 1\n");
unsigned int *res = tga_parse((uint8_t *)bootpng_ptr, bootpng_size);
LOG("Загрузка завершена! 2 %x\n", res);
tga_header_t *head = (tga_header_t *)bootpng_ptr;
static void *handler(uint64_t func) {
switch (func) {
case 0: return &tga_parse;
if (res != NULL) { LOG("Размер экрана загрузки: %ux%u \n", res[0], res[1]); }
LOG("Размер экрана загрузки: %ux%u \n", head->h, head->w);
mem_dump_memory( );
default: return NULL;
}
}
fb_print_buf(0, 0, head->w, head->h, (uint32_t *)(res + 2));
}
module_info_t __attribute__((section(".minit"))) init(env_t *env) {
init_env(env);
return (module_info_t){ .name = (char *)"[MEDIA][TGA]",
.message = (char *)"Отрисовка TGA изображений",
.type = 0,
.data_size = 0,
.data = (void *)0,
.err_code = 0,
.module_id = 0,
.irq = 0,
.irq_handler = 0,
.get_func = handler };
}