Index: skia/ext/platform_canvas.h |
diff --git a/skia/ext/platform_canvas.h b/skia/ext/platform_canvas.h |
deleted file mode 100644 |
index 25560e782276d459320ab04db30da65c9510d91a..0000000000000000000000000000000000000000 |
--- a/skia/ext/platform_canvas.h |
+++ /dev/null |
@@ -1,187 +0,0 @@ |
-// Copyright (c) 2011 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-#ifndef SKIA_EXT_PLATFORM_CANVAS_H_ |
-#define SKIA_EXT_PLATFORM_CANVAS_H_ |
- |
-// The platform-specific device will include the necessary platform headers |
-// to get the surface type. |
-#include "base/basictypes.h" |
-#include "skia/ext/platform_device.h" |
-#include "skia/ext/refptr.h" |
-#include "third_party/skia/include/core/SkBitmap.h" |
-#include "third_party/skia/include/core/SkCanvas.h" |
-#include "third_party/skia/include/core/SkPixelRef.h" |
-#include "third_party/skia/include/core/SkPreConfig.h" |
- |
-namespace skia { |
- |
-typedef SkCanvas PlatformCanvas; |
- |
-// |
-// Note about error handling. |
-// |
-// Creating a canvas can fail at times, most often because we fail to allocate |
-// the backing-store (pixels). This can be from out-of-memory, or something |
-// more opaque, like GDI or cairo reported a failure. |
-// |
-// To allow the caller to handle the failure, every Create... factory takes an |
-// enum as its last parameter. The default value is kCrashOnFailure. If the |
-// caller passes kReturnNullOnFailure, then the caller is responsible to check |
-// the return result. |
-// |
-enum OnFailureType { |
- CRASH_ON_FAILURE, |
- RETURN_NULL_ON_FAILURE |
-}; |
- |
-#if defined(SK_BUILD_FOR_WIN32) |
- // The shared_section parameter is passed to gfx::PlatformDevice::create. |
- // See it for details. |
- SK_API SkCanvas* CreatePlatformCanvas(int width, |
- int height, |
- bool is_opaque, |
- HANDLE shared_section, |
- OnFailureType failure_type); |
- |
- // Draws the top layer of the canvas into the specified HDC. Only works |
- // with a PlatformCanvas with a BitmapPlatformDevice. |
- SK_API void DrawToNativeContext(SkCanvas* canvas, |
- HDC hdc, |
- int x, |
- int y, |
- const RECT* src_rect); |
-#elif defined(SK_BUILD_FOR_MAC) |
- SK_API SkCanvas* CreatePlatformCanvas(CGContextRef context, |
- int width, |
- int height, |
- bool is_opaque, |
- OnFailureType failure_type); |
- |
- SK_API SkCanvas* CreatePlatformCanvas(int width, |
- int height, |
- bool is_opaque, |
- uint8_t* context, |
- OnFailureType failure_type); |
-#elif defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_UNIX) |
- // Linux --------------------------------------------------------------------- |
- |
- // Construct a canvas from the given memory region. The memory is not cleared |
- // first. @data must be, at least, @height * StrideForWidth(@width) bytes. |
- SK_API SkCanvas* CreatePlatformCanvas(int width, |
- int height, |
- bool is_opaque, |
- uint8_t* data, |
- OnFailureType failure_type); |
-#endif |
- |
-static inline SkCanvas* CreatePlatformCanvas(int width, |
- int height, |
- bool is_opaque) { |
- return CreatePlatformCanvas(width, height, is_opaque, 0, CRASH_ON_FAILURE); |
-} |
- |
-SK_API SkCanvas* CreateCanvas(const skia::RefPtr<SkBaseDevice>& device, |
- OnFailureType failure_type); |
- |
-static inline SkCanvas* CreateBitmapCanvas(int width, |
- int height, |
- bool is_opaque) { |
- return CreatePlatformCanvas(width, height, is_opaque, 0, CRASH_ON_FAILURE); |
-} |
- |
-static inline SkCanvas* TryCreateBitmapCanvas(int width, |
- int height, |
- bool is_opaque) { |
- return CreatePlatformCanvas(width, height, is_opaque, 0, |
- RETURN_NULL_ON_FAILURE); |
-} |
- |
-// Return the stride (length of a line in bytes) for the given width. Because |
-// we use 32-bits per pixel, this will be roughly 4*width. However, for |
-// alignment reasons we may wish to increase that. |
-SK_API size_t PlatformCanvasStrideForWidth(unsigned width); |
- |
-// Returns the SkBaseDevice pointer of the topmost rect with a non-empty |
-// clip. In practice, this is usually either the top layer or nothing, since |
-// we usually set the clip to new layers when we make them. |
-// |
-// This may return NULL, so callers need to check. |
-// |
-// This is different than SkCanvas' getDevice, because that returns the |
-// bottommost device. |
-// |
-// Danger: the resulting device should not be saved. It will be invalidated |
-// by the next call to save() or restore(). |
-SK_API SkBaseDevice* GetTopDevice(const SkCanvas& canvas); |
- |
-// Returns true if native platform routines can be used to draw on the |
-// given canvas. If this function returns false, BeginPlatformPaint will |
-// return NULL PlatformSurface. |
-SK_API bool SupportsPlatformPaint(const SkCanvas* canvas); |
- |
-// Sets the opacity of each pixel in the specified region to be opaque. |
-SK_API void MakeOpaque(SkCanvas* canvas, int x, int y, int width, int height); |
- |
-// These calls should surround calls to platform drawing routines, the |
-// surface returned here can be used with the native platform routines. |
-// |
-// Call EndPlatformPaint when you are done and want to use skia operations |
-// after calling the platform-specific BeginPlatformPaint; this will |
-// synchronize the bitmap to OS if necessary. |
-SK_API PlatformSurface BeginPlatformPaint(SkCanvas* canvas); |
-SK_API void EndPlatformPaint(SkCanvas* canvas); |
- |
-// Helper class for pairing calls to BeginPlatformPaint and EndPlatformPaint. |
-// Upon construction invokes BeginPlatformPaint, and upon destruction invokes |
-// EndPlatformPaint. |
-class SK_API ScopedPlatformPaint { |
- public: |
- explicit ScopedPlatformPaint(SkCanvas* canvas) : canvas_(canvas) { |
- platform_surface_ = BeginPlatformPaint(canvas); |
- } |
- ~ScopedPlatformPaint() { EndPlatformPaint(canvas_); } |
- |
- // Returns the PlatformSurface to use for native platform drawing calls. |
- PlatformSurface GetPlatformSurface() { return platform_surface_; } |
- private: |
- SkCanvas* canvas_; |
- PlatformSurface platform_surface_; |
- |
- // Disallow copy and assign |
- ScopedPlatformPaint(const ScopedPlatformPaint&); |
- ScopedPlatformPaint& operator=(const ScopedPlatformPaint&); |
-}; |
- |
-// PlatformBitmap holds a PlatformSurface that can also be used as an SkBitmap. |
-class SK_API PlatformBitmap { |
- public: |
- PlatformBitmap(); |
- ~PlatformBitmap(); |
- |
- // Returns true if the bitmap was able to allocate its surface. |
- bool Allocate(int width, int height, bool is_opaque); |
- |
- // Returns the platform surface, or 0 if Allocate() did not return true. |
- PlatformSurface GetSurface() { return surface_; } |
- |
- // Return the skia bitmap, which will be empty if Allocate() did not |
- // return true. |
- // |
- // The resulting SkBitmap holds a refcount on the underlying platform surface, |
- // so the surface will remain allocated so long as the SkBitmap or its copies |
- // stay around. |
- const SkBitmap& GetBitmap() { return bitmap_; } |
- |
- private: |
- SkBitmap bitmap_; |
- PlatformSurface surface_; // initialized to 0 |
- intptr_t platform_extra_; // platform specific, initialized to 0 |
- |
- DISALLOW_COPY_AND_ASSIGN(PlatformBitmap); |
-}; |
- |
-} // namespace skia |
- |
-#endif // SKIA_EXT_PLATFORM_CANVAS_H_ |