diff --git a/src/Magnum/GL/Test/CubeMapTextureArrayGLTest.cpp b/src/Magnum/GL/Test/CubeMapTextureArrayGLTest.cpp
index 99505f42d..4a82e662d 100644
--- a/src/Magnum/GL/Test/CubeMapTextureArrayGLTest.cpp
+++ b/src/Magnum/GL/Test/CubeMapTextureArrayGLTest.cpp
@@ -842,7 +842,8 @@ void CubeMapTextureArrayGLTest::compressedImage() {
     MAGNUM_VERIFY_NO_GL_ERROR();
 
     #ifndef MAGNUM_TARGET_GLES
-    CompressedImage3D image = texture.compressedImage(0, {data.storage});
+    CompressedImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedImage(0, image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -889,7 +890,8 @@ void CubeMapTextureArrayGLTest::compressedImageBuffer() {
 
     /** @todo How to test this on ES? */
     #ifndef MAGNUM_TARGET_GLES
-    CompressedBufferImage3D image = texture.compressedImage(0, {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedImage(0, image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
@@ -1312,7 +1314,8 @@ void CubeMapTextureArrayGLTest::compressedSubImageQuery() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedImage3D image = texture.compressedSubImage(0, Range3Di::fromSize({4, 4, 1}, Vector3i{4}), {data.storage});
+    CompressedImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedSubImage(0, Range3Di::fromSize({4, 4, 1}, Vector3i{4}), image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -1379,7 +1382,8 @@ void CubeMapTextureArrayGLTest::compressedSubImageQueryBuffer() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedBufferImage3D image = texture.compressedSubImage(0, Range3Di::fromSize({4, 4, 1}, Vector3i{4}), {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedSubImage(0, Range3Di::fromSize({4, 4, 1}, Vector3i{4}), image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
diff --git a/src/Magnum/GL/Test/CubeMapTextureGLTest.cpp b/src/Magnum/GL/Test/CubeMapTextureGLTest.cpp
index a19c574d1..a85bf6538 100644
--- a/src/Magnum/GL/Test/CubeMapTextureGLTest.cpp
+++ b/src/Magnum/GL/Test/CubeMapTextureGLTest.cpp
@@ -1317,7 +1317,8 @@ void CubeMapTextureGLTest::compressedImage() {
     MAGNUM_VERIFY_NO_GL_ERROR();
 
     #ifndef MAGNUM_TARGET_GLES
-    CompressedImage2D image = texture.compressedImage(CubeMapCoordinate::PositiveX, 0, {data.storage});
+    CompressedImage2D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedImage(CubeMapCoordinate::PositiveX, 0, image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -1367,8 +1368,8 @@ void CubeMapTextureGLTest::compressedImageBuffer() {
     MAGNUM_VERIFY_NO_GL_ERROR();
 
     #ifndef MAGNUM_TARGET_GLES
-    CompressedBufferImage2D image = texture.compressedImage(CubeMapCoordinate::PositiveX, 0,
-        {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage2D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedImage(CubeMapCoordinate::PositiveX, 0, image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
@@ -1529,7 +1530,8 @@ void CubeMapTextureGLTest::immutableCompressedImage() {
     MAGNUM_VERIFY_NO_GL_ERROR();
 
     #ifndef MAGNUM_TARGET_GLES
-    CompressedImage2D image = texture.compressedImage(CubeMapCoordinate::NegativeY, 0, {data.storage});
+    CompressedImage2D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedImage(CubeMapCoordinate::NegativeY, 0, image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -1705,7 +1707,8 @@ void CubeMapTextureGLTest::compressedSubImageQuery() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedImage3D image = texture.compressedSubImage(0, Range3Di::fromSize({4, 4, 0}, {4, 4, 1}), {data.storage});
+    CompressedImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedSubImage(0, Range3Di::fromSize({4, 4, 0}, {4, 4, 1}), image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -1826,7 +1829,8 @@ void CubeMapTextureGLTest::compressedSubImageQueryBuffer() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedBufferImage3D image = texture.compressedSubImage(0, Range3Di::fromSize({4, 4, 0}, {4, 4, 1}), {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedSubImage(0, Range3Di::fromSize({4, 4, 0}, {4, 4, 1}), image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
@@ -2002,7 +2006,8 @@ void CubeMapTextureGLTest::compressedImage3D() {
         if(fails) CORRADE_SKIP("Skipping the rest of the test");
     }
 
-    CompressedImage3D image = texture.compressedImage(0, {data.storage});
+    CompressedImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedImage(0, image);
 
     {
         #ifdef CORRADE_TARGET_WINDOWS
@@ -2055,7 +2060,8 @@ void CubeMapTextureGLTest::compressedImage3DBuffer() {
         if(fails) CORRADE_SKIP("Skipping the rest of the test");
     }
 
-    CompressedBufferImage3D image = texture.compressedImage(0, {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedImage(0, image, BufferUsage::StaticRead);
 
     {
         #ifdef CORRADE_TARGET_WINDOWS
diff --git a/src/Magnum/GL/Test/TextureArrayGLTest.cpp b/src/Magnum/GL/Test/TextureArrayGLTest.cpp
index de46197cf..d3e4d8d3f 100644
--- a/src/Magnum/GL/Test/TextureArrayGLTest.cpp
+++ b/src/Magnum/GL/Test/TextureArrayGLTest.cpp
@@ -1703,7 +1703,8 @@ void TextureArrayGLTest::compressedImage2D() {
     MAGNUM_VERIFY_NO_GL_ERROR();
 
     #ifndef MAGNUM_TARGET_GLES
-    CompressedImage3D image = texture.compressedImage(0, {data.storage});
+    CompressedImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedImage(0, image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -1749,7 +1750,8 @@ void TextureArrayGLTest::compressedImage2DBuffer() {
     MAGNUM_VERIFY_NO_GL_ERROR();
 
     #ifndef MAGNUM_TARGET_GLES
-    CompressedBufferImage3D image = texture.compressedImage(0, {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedImage(0, image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
@@ -1948,7 +1950,8 @@ void TextureArrayGLTest::compressedSubImage2DQuery() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedImage3D image = texture.compressedSubImage(0, Range3Di::fromSize({4, 0, 1}, {4, 4, 2}), {data.storage});
+    CompressedImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedSubImage(0, Range3Di::fromSize({4, 0, 1}, {4, 4, 2}), image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -2017,7 +2020,8 @@ void TextureArrayGLTest::compressedSubImage2DQueryBuffer() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedBufferImage3D image = texture.compressedSubImage(0, Range3Di::fromSize({4, 0, 1}, {4, 4, 2}), {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage3D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedSubImage(0, Range3Di::fromSize({4, 0, 1}, {4, 4, 2}), image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
diff --git a/src/Magnum/GL/Test/TextureGLTest.cpp b/src/Magnum/GL/Test/TextureGLTest.cpp
index 77d740dd9..21cc05e91 100644
--- a/src/Magnum/GL/Test/TextureGLTest.cpp
+++ b/src/Magnum/GL/Test/TextureGLTest.cpp
@@ -2181,7 +2181,8 @@ void TextureGLTest::compressedImage2D() {
     MAGNUM_VERIFY_NO_GL_ERROR();
 
     #ifndef MAGNUM_TARGET_GLES
-    CompressedImage2D image = texture.compressedImage(0, {data.storage});
+    CompressedImage2D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedImage(0, image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -2225,7 +2226,8 @@ void TextureGLTest::compressedImage2DBuffer() {
     MAGNUM_VERIFY_NO_GL_ERROR();
 
     #ifndef MAGNUM_TARGET_GLES
-    CompressedBufferImage2D image = texture.compressedImage(0, {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage2D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedImage(0, image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
@@ -2396,8 +2398,8 @@ void TextureGLTest::compressedSubImage2DQuery() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedImage2D image = texture.compressedSubImage(0, Range2Di::fromSize({4, 0}, Vector2i{4}),
-        {data.storage});
+    CompressedImage2D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr};
+    texture.compressedSubImage(0, Range2Di::fromSize({4, 0}, Vector2i{4}), image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -2460,8 +2462,8 @@ void TextureGLTest::compressedSubImage2DQueryBuffer() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedBufferImage2D image = texture.compressedSubImage(0, Range2Di::fromSize({4, 0}, Vector2i{4}),
-        {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage2D image{data.storage, CompressedPixelFormat::RGBAS3tcDxt3, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedSubImage(0, Range2Di::fromSize({4, 0}, Vector2i{4}), image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
@@ -2770,7 +2772,8 @@ void TextureGLTest::compressedImage3D() {
 
     /** @todo How to test this on ES? */
     #ifndef MAGNUM_TARGET_GLES
-    CompressedImage3D image = texture.compressedImage(0, {data.storage});
+    CompressedImage3D image{data.storage, CompressedPixelFormat::RGBABptcUnorm, {}, nullptr};
+    texture.compressedImage(0, image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -2811,7 +2814,8 @@ void TextureGLTest::compressedImage3DBuffer() {
 
     /** @todo How to test this on ES? */
     #ifndef MAGNUM_TARGET_GLES
-    CompressedBufferImage3D image = texture.compressedImage(0, {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage3D image{data.storage, CompressedPixelFormat::RGBABptcUnorm, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedImage(0, image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();
@@ -3015,8 +3019,8 @@ void TextureGLTest::compressedSubImage3DQuery() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedImage3D image = texture.compressedSubImage(0, Range3Di::fromSize({4, 0, 0}, Vector3i{4}),
-        {data.storage});
+    CompressedImage3D image{data.storage, CompressedPixelFormat::RGBABptcUnorm, {}, nullptr};
+    texture.compressedSubImage(0, Range3Di::fromSize({4, 0, 0}, Vector3i{4}), image);
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
@@ -3085,8 +3089,8 @@ void TextureGLTest::compressedSubImage3DQueryBuffer() {
 
     MAGNUM_VERIFY_NO_GL_ERROR();
 
-    CompressedBufferImage3D image = texture.compressedSubImage(0, Range3Di::fromSize({4, 0, 0}, Vector3i{4}),
-        {data.storage}, BufferUsage::StaticRead);
+    CompressedBufferImage3D image{data.storage, CompressedPixelFormat::RGBABptcUnorm, {}, nullptr, BufferUsage::StaticRead};
+    texture.compressedSubImage(0, Range3Di::fromSize({4, 0, 0}, Vector3i{4}), image, BufferUsage::StaticRead);
     const auto imageData = image.buffer().data();
 
     MAGNUM_VERIFY_NO_GL_ERROR();