Add gpu compressed decoders (#12237) 195d4fcb25

* feat(renderer): GPU compressed texture support (BC7 / ASTC / ETC2)

- Software decoders for BC, ASTC, ETC2 in the decoders library.
- KTX2 reader extended to parse BC7, ASTC LDR (all footprints), ETC2 RGBA8.
- Ktx2HwSupport + per-backend cap flags; DecodeKtx2 falls back to SW
  decode + tight RGBA mip chain when HW lacks the format.
- Native compressed upload in Vulkan, GL, Metal, WebGPU
  (D3D11/D3D12 already supported BC7); per-mip uploads, no auto-mipgen
  for compressed.
- Texture compressor premultiplies alpha before BC7 encode so output
  matches the runtime PNG path.
- Android CMakeLists exposes decoders include directory.

* Android break

* fix(android): always expose decoders/include for renderer sources

* fix(decoders): include <cstdio> for stderr in texture_decoder.cpp

* Clang format

* Update premake5_pls_renderer.lua

* Update render_context_gl_impl.cpp

* Update render_context_vulkan_impl.cpp

* Fix null renderer

* Update decode_ktx2.hpp

* Update astc_footprints.hpp

* Copyright

* Update texture_decoder.cpp

* Comments

* Comments

* Update to ETC

* Update decode_bc_texture.cpp

* Update decode_bc_texture.cpp

* More comments

* Comments

* Bug fix on block sizes

* Clang format

* Fix ASTC

* Fix android

* Update UE and Other platform

* Update render_context_vulkan_impl.cpp

* Josh Comments

Co-authored-by: John White <aliasbinman@gmail.com>

Author: aliasbinman

.rive_head

@@ -1 +1 @@
-fe77b2ec3dd8ea1f11cb8b54f950c33ed0b87dc6
+195d4fcb25427e309307e07670afb060c6886fec

kotlin/src/main/cpp/CMakeLists.txt

@@ -144,7 +144,8 @@ endif ()
 target_include_directories(rive-android PUBLIC
         ${CMAKE_CURRENT_SOURCE_DIR}/include
         ${RIVE_RUNTIME_DIR}/include
-        ${RIVE_RUNTIME_DIR}/renderer/include)
+        ${RIVE_RUNTIME_DIR}/renderer/include
+        ${RIVE_RUNTIME_DIR}/decoders/include)
 
 # Link each static library
 foreach (X IN LISTS static_libs)

kotlin/src/main/cpp/include/models/render_context.hpp

@@ -214,7 +214,11 @@ struct RenderContextGL : RenderContext
             height,
             mipLevelCount,
             rive::GPUTextureFormat::rgba32,
-            imageDataRGBA.get());
+            imageDataRGBA.get(),
+            /*blockWidth=*/1,
+            /*blockHeight=*/1,
+            /*srgb=*/false,
+            /*generateRemainingMips=*/true);
         return rive::make_rcp<rive::RiveRenderImage>(texture);
     }
 

kotlin/src/main/cpp/src/helpers/android_factories.cpp

@@ -181,7 +181,11 @@ AndroidImage::AndroidImage(int width,
                 m_Height,
                 mipLevelCount,
                 rive::GPUTextureFormat::rgba32,
-                imageDataRGBA));
+                imageDataRGBA,
+                /*blockWidth=*/1,
+                /*blockHeight=*/1,
+                /*srgb=*/false,
+                /*generateRemainingMips=*/true));
             delete[] imageDataRGBA;
         });
 }