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Add functions to image to load a PNG or JPG from a buffer, closes #4024

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This commit is contained in:
Juan Linietsky 2017-12-20 17:16:21 -03:00
parent 03823f12c5
commit c9d88fd8e8
2 changed files with 40 additions and 0 deletions
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37
core/image.cpp
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@ -2287,6 +2287,9 @@ void Image::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_pixel", "x", "y", "color"), &Image::set_pixel);
ClassDB::bind_method(D_METHOD("get_pixel", "x", "y"), &Image::get_pixel);
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);
ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_STORAGE), "_set_data", "_get_data");
BIND_ENUM_CONSTANT(FORMAT_L8); //luminance
@ -2505,6 +2508,40 @@ String Image::get_format_name(Format p_format) {
return format_names[p_format];
}
Error Image::load_png_from_buffer(const PoolVector<uint8_t> &p_array) {
int buffer_size = p_array.size();
ERR_FAIL_COND_V(buffer_size == 0, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(!_png_mem_loader_func, ERR_INVALID_PARAMETER);
PoolVector<uint8_t>::Read r = p_array.read();
Ref<Image> image = _png_mem_loader_func(r.ptr(), buffer_size);
ERR_FAIL_COND_V(!image.is_valid(), ERR_PARSE_ERROR);
copy_internals_from(image);
return OK;
}
Error Image::load_jpg_from_buffer(const PoolVector<uint8_t> &p_array) {
int buffer_size = p_array.size();
ERR_FAIL_COND_V(buffer_size == 0, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(!_jpg_mem_loader_func, ERR_INVALID_PARAMETER);
PoolVector<uint8_t>::Read r = p_array.read();
Ref<Image> image = _jpg_mem_loader_func(r.ptr(), buffer_size);
ERR_FAIL_COND_V(!image.is_valid(), ERR_PARSE_ERROR);
copy_internals_from(image);
return OK;
}
Image::Image(const uint8_t *p_mem_png_jpg, int p_len) {
width = 0;

3
core/image.h
View file

@ -296,6 +296,9 @@ public:
static void set_compress_bc_func(void (*p_compress_func)(Image *, CompressSource));
static String get_format_name(Format p_format);
Error load_png_from_buffer(const PoolVector<uint8_t> &p_array);
Error load_jpg_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);