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Load texture from glb

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Add loading image from glb file.
This commit is contained in:
Piotr Krygier
2026-03-20 14:22:17 +01:00
parent 4c706982f1
commit ceb9e365de
9 changed files with 59 additions and 85 deletions
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utilities/file_utils.h
+1 -3
View File
@@ -15,12 +15,10 @@
* @param bytes_count Returned bytes count
* @param buffer Returned filled buffer
*/
rse_err_t file_read_bytes(const char* file_path, size_t* bytes_count, char* buffer);
rse_err_t file_read_bytes(const char* file_path, size_t* bytes_count, unsigned char* buffer);
rse_err_t file_write(const char* file_name, size_t bytes_count, char* buffer);
rse_err_t file_load_pixels(const char* file_name, unsigned char* buffer, size_t* buffer_size, int* width, int* height);
rse_err_t file_append_full_path(char* file_path, size_t max_buffer_size);
rse_err_t file_load_gltf(const char* file_name, cgltf_data** data);
utilities/src/file_utils.c
+1 -67
View File
@@ -14,9 +14,6 @@
#include "commons.h"
#include "errors_common.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb/stb_image.h"
#ifdef __linux__
#include <limits.h>
#include <unistd.h>
@@ -119,70 +116,7 @@ rse_err_t file_append_full_path(char* file_path, size_t max_buffer_size)
return ret;
}
rse_err_t file_load_pixels(const char* file_name, unsigned char* buffer, size_t* buffer_size, int* width, int* height)
{
int channels = 0;
stbi_uc* pixel_buffer = NULL;
size_t image_buffer_size = 0U;
rse_err_t ret = RSE_ERROR_NO_ERROR;
char real_path[MAX_PATH_LENGTH] = {0};
if (buffer_size == NULL) {
SDL_LogCritical(SDL_LOG_CATEGORY_APPLICATION, "Provided NULL buffer_size");
return RSE_ERROR_INVALID_PARAM;
}
if (width == NULL) {
SDL_LogCritical(SDL_LOG_CATEGORY_APPLICATION, "Provided NULL width");
return RSE_ERROR_INVALID_PARAM;
}
if (height == NULL) {
SDL_LogCritical(SDL_LOG_CATEGORY_APPLICATION, "Provided NULL height");
return RSE_ERROR_INVALID_PARAM;
}
strncpy(real_path, file_name, MAX_PATH_LENGTH);
if ((ret = file_append_full_path(real_path, MAX_PATH_LENGTH)) != RSE_ERROR_NO_ERROR) {
return ret;
}
pixel_buffer = stbi_load(real_path, width, height, &channels, STBI_rgb_alpha);
if (pixel_buffer == NULL) {
SDL_LogCritical(SDL_LOG_CATEGORY_GPU, "Failed to load texture from file: %s", file_name);
return RSE_ERROR_INTERNAL_ERROR;
}
image_buffer_size = *width * *height * 4; // TODO: "4" is very hardcoded value. Change this
if ((buffer != NULL) && (image_buffer_size > *buffer_size)) {
SDL_LogCritical(SDL_LOG_CATEGORY_APPLICATION,
"Provided buffer is to small to hold pixel data. %ld vs %ld",
*buffer_size,
image_buffer_size);
ret = RSE_ERROR_INTERNAL_ERROR;
goto image_free;
}
*buffer_size = image_buffer_size;
if (buffer != NULL) {
memset(buffer, 0, *buffer_size);
memcpy(buffer, pixel_buffer, *buffer_size);
}
image_free:
stbi_image_free(pixel_buffer);
return ret;
}
rse_err_t file_read_bytes(const char* file_name, size_t* bytes_count, char* buffer)
rse_err_t file_read_bytes(const char* file_name, size_t* bytes_count, unsigned char* buffer)
{
rse_err_t ret = RSE_ERROR_NO_ERROR;
FILE* file = NULL;