// TODO: Remove the code duplication between this and LoadFromFileData
Thin3DTexture *Thin3DContext::CreateTextureFromFileData(const uint8_t *data, int size, T3DImageType type) {
int width[16], height[16], zim_flags = 0;
uint8_t *image[16] = { nullptr };
int num_levels = 0;
T3DImageFormat fmt;
if (type == DETECT) {
type = DetectImageFileType(data, size);
}
if (type == TYPE_UNKNOWN) {
ELOG("File has unknown format");
return nullptr;
}
switch (type) {
case ZIM:
num_levels = LoadZIMPtr((const uint8_t *)data, size, width, height, &zim_flags, image);
fmt = ZimToT3DFormat(zim_flags & ZIM_FORMAT_MASK);
break;
case PNG:
if (1 != pngLoadPtr((const unsigned char *)data, size, &width[0], &height[0], &image[0], false)) {
return NULL;
}
num_levels = 1;
fmt = RGBA8888;
break;
default:
ELOG("Unknown image format");
return nullptr;
}
if (num_levels == 0) {
return NULL;
}
Thin3DTexture *tex = CreateTexture(LINEAR2D, fmt, width[0], height[0], 1, num_levels);
for (int i = 0; i < num_levels; i++) {
tex->SetImageData(0, 0, 0, width[i], height[i], 1, i, width[i] * 4, image[i]);
free(image[i]);
}
tex->Finalize(zim_flags);
return tex;
}
static bool LoadTextureLevels(const uint8_t *data, size_t size, T3DImageType type, int width[16], int height[16], int *num_levels, T3DImageFormat *fmt, uint8_t *image[16], int *zim_flags) {
if (type == DETECT) {
type = DetectImageFileType(data, size);
}
if (type == TYPE_UNKNOWN) {
ELOG("File has unknown format");
return false;
}
*num_levels = 0;
*zim_flags = 0;
switch (type) {
case ZIM:
{
*num_levels = LoadZIMPtr((const uint8_t *)data, size, width, height, zim_flags, image);
*fmt = ZimToT3DFormat(*zim_flags & ZIM_FORMAT_MASK);
}
break;
case PNG:
if (1 == pngLoadPtr((const unsigned char *)data, size, &width[0], &height[0], &image[0], false)) {
*num_levels = 1;
*fmt = RGBA8888;
}
break;
case JPEG:
{
int actual_components = 0;
unsigned char *jpegBuf = jpgd::decompress_jpeg_image_from_memory(data, (int)size, &width[0], &height[0], &actual_components, 4);
if (jpegBuf) {
*num_levels = 1;
*fmt = RGBA8888;
image[0] = (uint8_t *)jpegBuf;
}
}
break;
default:
ELOG("Unknown image format");
return false;
}
return *num_levels > 0;
}
