summaryrefslogtreecommitdiffstats
path: root/gfx/webrender_bindings/RenderTextureHostSWGL.h
diff options
context:
space:
mode:
Diffstat (limited to 'gfx/webrender_bindings/RenderTextureHostSWGL.h')
-rw-r--r--gfx/webrender_bindings/RenderTextureHostSWGL.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/gfx/webrender_bindings/RenderTextureHostSWGL.h b/gfx/webrender_bindings/RenderTextureHostSWGL.h
new file mode 100644
index 0000000000..b5d1e92056
--- /dev/null
+++ b/gfx/webrender_bindings/RenderTextureHostSWGL.h
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZILLA_GFX_RENDERTEXTUREHOSTSWGL_H
+#define MOZILLA_GFX_RENDERTEXTUREHOSTSWGL_H
+
+#include "GLTypes.h"
+#include "RenderTextureHost.h"
+
+namespace mozilla {
+namespace wr {
+
+class RenderTextureHostSWGL : public RenderTextureHost {
+ public:
+ RenderTextureHostSWGL() {}
+
+ wr::WrExternalImage LockSWGL(uint8_t aChannelIndex, void* aContext,
+ RenderCompositor* aCompositor) override;
+
+ void UnlockSWGL() override;
+
+ RenderTextureHostSWGL* AsRenderTextureHostSWGL() override { return this; }
+
+ virtual size_t GetPlaneCount() const = 0;
+
+ virtual gfx::ColorDepth GetColorDepth() const {
+ return gfx::ColorDepth::COLOR_8;
+ }
+
+ struct PlaneInfo {
+ explicit PlaneInfo(GLuint aTexture) : mTexture(aTexture) {}
+
+ GLuint mTexture = 0;
+ void* mData = nullptr;
+ int32_t mStride = 0;
+ gfx::IntSize mSize;
+ };
+
+ virtual bool MapPlane(RenderCompositor* aCompositor, uint8_t aChannelIndex,
+ PlaneInfo& aPlaneInfo) = 0;
+
+ virtual void UnmapPlanes() = 0;
+
+ // Lock this texture host as an attached external image for a SWGL compositor
+ // surface. See swgl_bindings.rs for a description of the resulting
+ // WrSWGLCompositeSurfaceInfo. This is paired with a call to UnlockSWGL when
+ // composition is done.
+ bool LockSWGLCompositeSurface(void* aContext,
+ wr::SWGLCompositeSurfaceInfo* aInfo);
+
+ size_t BytesFromPlanes() {
+ NS_ASSERTION(mPlanes.size(), "Can't compute bytes without any planes");
+ size_t bytes = 0;
+ for (auto& plane : mPlanes) {
+ bytes += plane.mStride * plane.mSize.height;
+ }
+ return bytes;
+ }
+
+ protected:
+ bool mLocked = false;
+ void* mContext = nullptr;
+ std::vector<PlaneInfo> mPlanes;
+
+ bool SetContext(void* aContext);
+
+ bool UpdatePlanes(RenderCompositor* aCompositor);
+
+ void CleanupPlanes();
+
+ virtual ~RenderTextureHostSWGL();
+};
+
+} // namespace wr
+} // namespace mozilla
+
+#endif // MOZILLA_GFX_RENDERTEXTUREHOSTSWGL_H