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Fix texture resource reload bug 

If a non-imported texture resource file (e.g. DDS) gets updated the editor
doesn't reload it. The cause of the problem is two-fold:

First, the code of ImageTexture assumes that textures are always imported
from an image, but that's not the case for e.g. DDS. This change thus adds
code to issue a resource reload in case an image reload is not possible
(which is the case for non-imported texture resources).

Second, the code is filled with bogus calls to Image::get_image_data_size()
to determine the mipmap offset when that should be done using
Image::get_image_mipmap_offset(). Previous code literally passed the integer
mip level value to Image::get_image_data_size() where that actually expects
a boolean. Thus this part of the change might actually solve some other
issues as well.

To be pedantic, the texture_get_data() funciton of the rasterizer drivers is
still quite a mess, as it only ever returns the whole mipchain when
GLES_OVER_GL is set (practically only on desktop builds) but this change does
not attempt to resolve that.

(cherry picked from commit e34eb5c26c)
This commit is contained in:
Daniel Rakos 2019-05-08 17:20:42 +02:00 committed by Rémi Verschelde
parent c3fd38027e
commit a670c66457
3 changed files with 10 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gles2/rasterizer_storage_gles2.cpp
View File

@ -774,10 +774,7 @@ Ref<Image> RasterizerStorageGLES2::texture_get_data(RID p_texture, int p_layer)
for (int i = 0; i < texture->mipmaps; i++) {
int ofs = 0;
if (i > 0) {
ofs = Image::get_image_data_size(texture->alloc_width, texture->alloc_height, real_format, i - 1);
}
int ofs = Image::get_image_mipmap_offset(texture->alloc_width, texture->alloc_height, real_format, i);
if (texture->compressed) {
glPixelStorei(GL_PACK_ALIGNMENT, 4);

5
drivers/gles3/rasterizer_storage_gles3.cpp
View File

@ -1209,10 +1209,7 @@ Ref<Image> RasterizerStorageGLES3::texture_get_data(RID p_texture, int p_layer)
for (int i = 0; i < texture->mipmaps; i++) {
int ofs = 0;
if (i > 0) {
ofs = Image::get_image_data_size(texture->alloc_width, texture->alloc_height, real_format, i - 1);
}
int ofs = Image::get_image_mipmap_offset(texture->alloc_width, texture->alloc_height, real_format, i);
if (texture->compressed) {

17
scene/resources/texture.cpp
View File

@ -110,10 +110,12 @@ void ImageTexture::reload_from_file() {
Ref<Image> img;
img.instance();
Error err = ImageLoader::load_image(path, img);
ERR_FAIL_COND(err != OK);
create_from_image(img, flags);
if (ImageLoader::load_image(path, img) == OK) {
create_from_image(img, flags);
} else {
Resource::reload_from_file();
_change_notify();
}
}
bool ImageTexture::_set(const StringName &p_name, const Variant &p_value) {
@ -637,7 +639,7 @@ Error StreamTexture::_load_data(const String &p_path, int &tw, int &th, int &tw_
bool mipmaps = df & FORMAT_BIT_HAS_MIPMAPS;
if (!mipmaps) {
int size = Image::get_image_data_size(tw, th, format, 0);
int size = Image::get_image_data_size(tw, th, format, false);
PoolVector<uint8_t> img_data;
img_data.resize(size);
@ -659,7 +661,6 @@ Error StreamTexture::_load_data(const String &p_path, int &tw, int &th, int &tw_
int mipmaps2 = Image::get_image_required_mipmaps(tw, th, format);
int total_size = Image::get_image_data_size(tw, th, format, true);
int idx = 0;
int ofs = 0;
while (mipmaps2 > 1 && p_size_limit > 0 && (sw > p_size_limit || sh > p_size_limit)) {
@ -669,9 +670,7 @@ Error StreamTexture::_load_data(const String &p_path, int &tw, int &th, int &tw_
idx++;
}
if (idx > 0) {
ofs = Image::get_image_data_size(tw, th, format, idx - 1);
}
int ofs = Image::get_image_mipmap_offset(tw, th, format, idx);
if (total_size - ofs <= 0) {
memdelete(f);