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Diffstat (limited to 'src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture.cpp')
-rw-r--r--src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture.cpp12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture.cpp b/src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture.cpp
index d3dc4978f2..46b2c6386c 100644
--- a/src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture.cpp
+++ b/src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture.cpp
@@ -88,10 +88,20 @@ Texture *Atlas::create(const QByteArray &data, int dataLength, int dataOffset, c
void Atlas::generateTexture()
{
+ int bytesPerBlock = 8;
+ switch (m_format) {
+ case QOpenGLTexture::RGBA8_ETC2_EAC:
+ case QOpenGLTexture::RGBA_DXT3:
+ case QOpenGLTexture::RGBA_DXT5:
+ bytesPerBlock = 16;
+ default:
+ break;
+ }
+
QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions();
funcs->glCompressedTexImage2D(GL_TEXTURE_2D, 0, m_format,
m_size.width(), m_size.height(), 0,
- (m_size.width() * m_size.height()) / 2,
+ (m_size.width() / 4 * m_size.height() / 4) * bytesPerBlock,
nullptr);
}