Expose loading TGA images in Image.

(cherry picked from commit 7d4b3e65876af61452a13c23bec1829a0a2de77f)

core/image.cpp

@@ -30,6 +30,7 @@
 
 #include "image.h"
 
+#include "core/error_macros.h"
 #include "core/hash_map.h"
 #include "core/io/image_loader.h"
 #include "core/io/resource_loader.h"
@@ -2330,6 +2331,7 @@ void Image::fill(const Color &c) {
 ImageMemLoadFunc Image::_png_mem_loader_func = NULL;
 ImageMemLoadFunc Image::_jpg_mem_loader_func = NULL;
 ImageMemLoadFunc Image::_webp_mem_loader_func = NULL;
+ImageMemLoadFunc Image::_tga_mem_loader_func = NULL;
 
 void (*Image::_image_compress_bc_func)(Image *, float, Image::CompressSource) = NULL;
 void (*Image::_image_compress_bptc_func)(Image *, float, Image::CompressSource) = NULL;
@@ -2778,6 +2780,7 @@ void Image::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("load_png_from_buffer", "buffer"), &Image::load_png_from_buffer);
 	ClassDB::bind_method(D_METHOD("load_jpg_from_buffer", "buffer"), &Image::load_jpg_from_buffer);
 	ClassDB::bind_method(D_METHOD("load_webp_from_buffer", "buffer"), &Image::load_webp_from_buffer);
+	ClassDB::bind_method(D_METHOD("load_tga_from_buffer", "buffer"), &Image::load_tga_from_buffer);
 
 	ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_STORAGE), "_set_data", "_get_data");
 
@@ -3093,6 +3096,11 @@ Error Image::load_webp_from_buffer(const PoolVector<uint8_t> &p_array) {
 	return _load_from_buffer(p_array, _webp_mem_loader_func);
 }
 
+Error Image::load_tga_from_buffer(const PoolVector<uint8_t> &p_array) {
+	ERR_FAIL_NULL_V_MSG(_tga_mem_loader_func, ERR_UNAVAILABLE, "TGA module was not installed.");
+	return _load_from_buffer(p_array, _tga_mem_loader_func);
+}
+
 Error Image::_load_from_buffer(const PoolVector<uint8_t> &p_array, ImageMemLoadFunc p_loader) {
 	int buffer_size = p_array.size();
 

core/image.h

@@ -131,6 +131,7 @@ public:
 	static ImageMemLoadFunc _png_mem_loader_func;
 	static ImageMemLoadFunc _jpg_mem_loader_func;
 	static ImageMemLoadFunc _webp_mem_loader_func;
+	static ImageMemLoadFunc _tga_mem_loader_func;
 
 	static void (*_image_compress_bc_func)(Image *, float, CompressSource p_source);
 	static void (*_image_compress_bptc_func)(Image *, float p_lossy_quality, CompressSource p_source);
@@ -331,6 +332,7 @@ public:
 	Error load_png_from_buffer(const PoolVector<uint8_t> &p_array);
 	Error load_jpg_from_buffer(const PoolVector<uint8_t> &p_array);
 	Error load_webp_from_buffer(const PoolVector<uint8_t> &p_array);
+	Error load_tga_from_buffer(const PoolVector<uint8_t> &p_array);
 
 	Image(const uint8_t *p_mem_png_jpg, int p_len = -1);
 	Image(const char **p_xpm);

modules/tga/image_loader_tga.cpp

@@ -30,6 +30,8 @@
 
 #include "image_loader_tga.h"
 
+#include "core/error_macros.h"
+#include "core/io/file_access_memory.h"
 #include "core/os/os.h"
 #include "core/print_string.h"
 
@@ -314,5 +316,17 @@ void ImageLoaderTGA::get_recognized_extensions(List<String> *p_extensions) const
 	p_extensions->push_back("tga");
 }
 
+static Ref<Image> _tga_mem_loader_func(const uint8_t *p_png, int p_size) {
+	FileAccessMemory memfile;
+	Error open_memfile_error = memfile.open_custom(p_png, p_size);
+	ERR_FAIL_COND_V_MSG(open_memfile_error, Ref<Image>(), "Could not create memfile for TGA image buffer.");
+	Ref<Image> img;
+	img.instance();
+	Error load_error = ImageLoaderTGA().load_image(img, &memfile, false, 1.0f);
+	ERR_FAIL_COND_V_MSG(load_error, Ref<Image>(), "Failed to load TGA image.");
+	return img;
+}
+
 ImageLoaderTGA::ImageLoaderTGA() {
+	Image::_tga_mem_loader_func = _tga_mem_loader_func;
 }