diff options
Diffstat (limited to 'include/gpu')
| -rw-r--r-- | include/gpu/GrClip.h | 147 | ||||
| -rw-r--r-- | include/gpu/GrContext.h | 1 |
2 files changed, 0 insertions, 148 deletions
diff --git a/include/gpu/GrClip.h b/include/gpu/GrClip.h deleted file mode 100644 index 9bf2da205e..0000000000 --- a/include/gpu/GrClip.h +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright 2010 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#ifndef GrClip_DEFINED -#define GrClip_DEFINED - -#include "GrTypes.h" -#include "SkRect.h" -#include "SkRRect.h" - -class GrAppliedClip; -class GrContext; -class GrRenderTargetContext; - -/** - * GrClip is an abstract base class for applying a clip. It constructs a clip mask if necessary, and - * fills out a GrAppliedClip instructing the caller on how to set up the draw state. - */ -class GrClip { -public: - virtual bool quickContains(const SkRect&) const = 0; - virtual bool quickContains(const SkRRect& rrect) const { - return this->quickContains(rrect.getBounds()); - } - virtual void getConservativeBounds(int width, int height, SkIRect* devResult, - bool* isIntersectionOfRects = nullptr) const = 0; - virtual bool apply(GrContext*, GrRenderTargetContext*, bool useHWAA, - bool hasUserStencilSettings, GrAppliedClip* out) const = 0; - - virtual ~GrClip() {} - - /** - * This method quickly and conservatively determines whether the entire clip is equivalent to - * intersection with a rrect. This will only return true if the rrect does not fully contain - * the render target bounds. Moreover, the returned rrect need not be contained by the render - * target bounds. We assume all draws will be implicitly clipped by the render target bounds. - * - * @param rtBounds The bounds of the render target that the clip will be applied to. - * @param rrect If return is true rrect will contain the rrect equivalent to the clip within - * rtBounds. - * @param aa If return is true aa will indicate whether the rrect clip is antialiased. - * @return true if the clip is equivalent to a single rrect, false otherwise. - * - */ - virtual bool isRRect(const SkRect& rtBounds, SkRRect* rrect, GrAA* aa) const = 0; - - /** - * This is the maximum distance that a draw may extend beyond a clip's boundary and still count - * count as "on the other side". We leave some slack because floating point rounding error is - * likely to blame. The rationale for 1e-3 is that in the coverage case (and barring unexpected - * rounding), as long as coverage stays within 0.5 * 1/256 of its intended value it shouldn't - * have any effect on the final pixel values. - */ - constexpr static SkScalar kBoundsTolerance = 1e-3f; - - /** - * Returns true if the given query bounds count as entirely inside the clip. - * - * @param innerClipBounds device-space rect contained by the clip (SkRect or SkIRect). - * @param queryBounds device-space bounds of the query region. - */ - template<typename TRect> constexpr static bool IsInsideClip(const TRect& innerClipBounds, - const SkRect& queryBounds) { - return innerClipBounds.fRight - innerClipBounds.fLeft > kBoundsTolerance && - innerClipBounds.fBottom - innerClipBounds.fTop > kBoundsTolerance && - innerClipBounds.fLeft < queryBounds.fLeft + kBoundsTolerance && - innerClipBounds.fTop < queryBounds.fTop + kBoundsTolerance && - innerClipBounds.fRight > queryBounds.fRight - kBoundsTolerance && - innerClipBounds.fBottom > queryBounds.fBottom - kBoundsTolerance; - } - - /** - * Returns true if the given query bounds count as entirely outside the clip. - * - * @param outerClipBounds device-space rect that contains the clip (SkRect or SkIRect). - * @param queryBounds device-space bounds of the query region. - */ - template<typename TRect> constexpr static bool IsOutsideClip(const TRect& outerClipBounds, - const SkRect& queryBounds) { - return outerClipBounds.fRight - outerClipBounds.fLeft <= kBoundsTolerance || - outerClipBounds.fBottom - outerClipBounds.fTop <= kBoundsTolerance || - outerClipBounds.fLeft >= queryBounds.fRight - kBoundsTolerance || - outerClipBounds.fTop >= queryBounds.fBottom - kBoundsTolerance || - outerClipBounds.fRight <= queryBounds.fLeft + kBoundsTolerance || - outerClipBounds.fBottom <= queryBounds.fTop + kBoundsTolerance; - } - - /** - * Returns the minimal integer rect that counts as containing a given set of bounds. - */ - static SkIRect GetPixelIBounds(const SkRect& bounds) { - return SkIRect::MakeLTRB(SkScalarFloorToInt(bounds.fLeft + kBoundsTolerance), - SkScalarFloorToInt(bounds.fTop + kBoundsTolerance), - SkScalarCeilToInt(bounds.fRight - kBoundsTolerance), - SkScalarCeilToInt(bounds.fBottom - kBoundsTolerance)); - } - - /** - * Returns the minimal pixel-aligned rect that counts as containing a given set of bounds. - */ - static SkRect GetPixelBounds(const SkRect& bounds) { - return SkRect::MakeLTRB(SkScalarFloorToScalar(bounds.fLeft + kBoundsTolerance), - SkScalarFloorToScalar(bounds.fTop + kBoundsTolerance), - SkScalarCeilToScalar(bounds.fRight - kBoundsTolerance), - SkScalarCeilToScalar(bounds.fBottom - kBoundsTolerance)); - } - - /** - * Returns true if the given rect counts as aligned with pixel boundaries. - */ - static bool IsPixelAligned(const SkRect& rect) { - return SkScalarAbs(SkScalarRoundToScalar(rect.fLeft) - rect.fLeft) <= kBoundsTolerance && - SkScalarAbs(SkScalarRoundToScalar(rect.fTop) - rect.fTop) <= kBoundsTolerance && - SkScalarAbs(SkScalarRoundToScalar(rect.fRight) - rect.fRight) <= kBoundsTolerance && - SkScalarAbs(SkScalarRoundToScalar(rect.fBottom) - rect.fBottom) <= kBoundsTolerance; - } -}; - -/** - * Specialized implementation for no clip. - */ -class GrNoClip final : public GrClip { -private: - bool quickContains(const SkRect&) const final { - return true; - } - bool quickContains(const SkRRect&) const final { - return true; - } - void getConservativeBounds(int width, int height, SkIRect* devResult, - bool* isIntersectionOfRects) const final { - devResult->setXYWH(0, 0, width, height); - if (isIntersectionOfRects) { - *isIntersectionOfRects = true; - } - } - bool apply(GrContext*, GrRenderTargetContext*, bool, bool, GrAppliedClip*) const final { - return true; - } - bool isRRect(const SkRect&, SkRRect*, GrAA*) const override { return false; } -}; - -#endif diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h index 3a7fd545b5..7ac5a93de5 100644 --- a/include/gpu/GrContext.h +++ b/include/gpu/GrContext.h @@ -9,7 +9,6 @@ #define GrContext_DEFINED #include "GrCaps.h" -#include "GrClip.h" #include "GrColor.h" #include "GrPaint.h" #include "GrRenderTarget.h" |