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Fix texture resource reload bug

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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.
This commit is contained in:
Daniel Rakos
2019-05-08 17:20:42 +02:00
parent 0239d8bd9f
commit e34eb5c26c
3 changed files with 10 additions and 17 deletions
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drivers/gles3/rasterizer_storage_gles3.cpp
+1 -4
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@@ -1210,10 +1210,7 @@ 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) {