Move GrSurfaceContext.h and GrTextureContext.h to src/gpu from include/gpu

Change-Id: I5b68650d2417018e217a2fef2f852316ebd9de6f
Reviewed-on: https://skia-review.googlesource.com/9637
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>

1 files changed, 149 insertions, 0 deletions

diff --git a/src/gpu/GrSurfaceContext.h b/src/gpu/GrSurfaceContext.h
new file mode 100644
index 0000000000..109c4a0ffa
--- /dev/null
+++ b/src/gpu/GrSurfaceContext.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrSurfaceContext_DEFINED
+#define GrSurfaceContext_DEFINED
+
+#include "../private/GrSurfaceProxy.h"
+
+#include "SkRefCnt.h"
+
+class GrAuditTrail;
+class GrContext;
+class GrDrawingManager;
+class GrRenderTargetContext;
+class GrRenderTargetProxy;
+class GrSingleOwner;
+class GrSurface;
+class GrSurfaceContextPriv;
+class GrSurfaceProxy;
+class GrTextureProxy;
+struct SkIPoint;
+struct SkIRect;
+
+/**
+ * A helper object to orchestrate commands for a particular surface
+ */
+class SK_API GrSurfaceContext : public SkRefCnt {
+public:
+    ~GrSurfaceContext() override {}
+
+    SkColorSpace* getColorSpace() const { return fColorSpace.get(); }
+    sk_sp<SkColorSpace> refColorSpace() const { return fColorSpace; }
+    bool isGammaCorrect() const;
+
+    // TODO: these two calls would be way cooler if this object had a GrSurfaceProxy pointer
+    int width() const { return this->asSurfaceProxy()->width(); }
+    int height() const { return this->asSurfaceProxy()->height(); }
+
+    /*
+     * Copy 'src' into the proxy backing this context
+     * @param src       src of pixels
+     * @param srcRect   the subset of 'src' to copy
+     * @param dstPoint  the origin of the 'srcRect' in the destination coordinate space
+     * @return          true if the copy succeeded; false otherwise
+     *
+     * Note: Notionally, 'srcRect' is clipped to 'src's extent with 'dstPoint' being adjusted.
+     *       Then the 'srcRect' offset by 'dstPoint' is clipped against the dst's extent.
+     *       The end result is only valid src pixels and dst pixels will be touched but the copied
+     *       regions will not be shifted.
+     */
+    bool copy(GrSurfaceProxy* src, const SkIRect& srcRect, const SkIPoint& dstPoint) {
+        return this->onCopy(src, srcRect, dstPoint);
+    }
+
+    bool copy(GrSurfaceProxy* src) {
+        return this->onCopy(src,
+                            SkIRect::MakeWH(src->width(), src->height()),
+                            SkIPoint::Make(0, 0));
+    }
+
+    /**
+     * Reads a rectangle of pixels from the render target context.
+     * @param dstInfo       image info for the destination
+     * @param dstBuffer     destination pixels for the read
+     * @param dstRowBytes   bytes in a row of 'dstBuffer'
+     * @param x             x offset w/in the render target context from which to read
+     * @param y             y offset w/in the render target context from which to read
+     *
+     * @return true if the read succeeded, false if not. The read can fail because of an
+     *              unsupported pixel config.
+     */
+    bool readPixels(const SkImageInfo& dstInfo, void* dstBuffer, size_t dstRowBytes,
+                    int x, int y, uint32_t flags = 0) {
+        return this->onReadPixels(dstInfo, dstBuffer, dstRowBytes, x, y, flags);
+    }
+
+    /**
+     * Writes a rectangle of pixels [srcInfo, srcBuffer, srcRowbytes] into the
+     * renderTargetContext at the specified position.
+     * @param srcInfo       image info for the source pixels
+     * @param srcBuffer     source for the write
+     * @param srcRowBytes   bytes in a row of 'srcBuffer'
+     * @param x             x offset w/in the render target context at which to write
+     * @param y             y offset w/in the render target context at which to write
+     *
+     * @return true if the write succeeded, false if not. The write can fail because of an
+     *              unsupported pixel config.
+     */
+    bool writePixels(const SkImageInfo& srcInfo, const void* srcBuffer, size_t srcRowBytes,
+                     int x, int y, uint32_t flags = 0) {
+        return this->onWritePixels(srcInfo, srcBuffer, srcRowBytes, x, y, flags);
+    }
+
+    // TODO: this is virtual b.c. this object doesn't have a pointer to the wrapped GrSurfaceProxy?
+    virtual GrSurfaceProxy* asSurfaceProxy() = 0;
+    virtual const GrSurfaceProxy* asSurfaceProxy() const = 0;
+    virtual sk_sp<GrSurfaceProxy> asSurfaceProxyRef() = 0;
+
+    virtual GrTextureProxy* asTextureProxy() = 0;
+    virtual sk_sp<GrTextureProxy> asTextureProxyRef() = 0;
+
+    virtual GrRenderTargetProxy* asRenderTargetProxy() = 0;
+    virtual sk_sp<GrRenderTargetProxy> asRenderTargetProxyRef() = 0;
+
+    virtual GrRenderTargetContext* asRenderTargetContext() { return nullptr; }
+
+    GrAuditTrail* auditTrail() { return fAuditTrail; }
+
+    // Provides access to functions that aren't part of the public API.
+    GrSurfaceContextPriv surfPriv();
+    const GrSurfaceContextPriv surfPriv() const;
+
+protected:
+    friend class GrSurfaceContextPriv;
+
+    GrSurfaceContext(GrContext*, GrDrawingManager*,
+                     sk_sp<SkColorSpace>, GrAuditTrail*, GrSingleOwner*);
+
+    GrDrawingManager* drawingManager() { return fDrawingManager; }
+    const GrDrawingManager* drawingManager() const { return fDrawingManager; }
+
+    SkDEBUGCODE(GrSingleOwner* singleOwner() { return fSingleOwner; })
+
+    GrContext*            fContext;
+    sk_sp<SkColorSpace>   fColorSpace;
+    GrAuditTrail*         fAuditTrail;
+
+    // In debug builds we guard against improper thread handling
+    SkDEBUGCODE(mutable GrSingleOwner* fSingleOwner;)
+
+private:
+    virtual bool onCopy(GrSurfaceProxy* src,
+                        const SkIRect& srcRect,
+                        const SkIPoint& dstPoint) = 0;
+    virtual bool onReadPixels(const SkImageInfo& dstInfo, void* dstBuffer,
+                              size_t dstRowBytes, int x, int y, uint32_t flags) = 0;
+    virtual bool onWritePixels(const SkImageInfo& srcInfo, const void* srcBuffer,
+                               size_t srcRowBytes, int x, int y, uint32_t flags) = 0;
+
+    GrDrawingManager*     fDrawingManager;
+
+    typedef SkRefCnt INHERITED;
+};
+
+#endif