skia2/include/gpu/GrContextOptions.h
cdalton 397536cabe Consolidate GPU buffer implementations
Consolidates all the different buffer implementations into a single
GrBuffer class. This will allow us to add new buffer types, use DSA in
OpenGL, track buffer bindings by unique ID, cache buffers without
respect to the type of data they have been used for previously, etc.
This change is strictly a refactor; it introduces no change in
functionality.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1825393002

Committed: https://skia.googlesource.com/skia/+/8b1bff29675afd25843439eade634a57f68fe16f

Review URL: https://codereview.chromium.org/1825393002
2016-03-25 12:15:03 -07:00

79 lines
2.8 KiB
C

/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrContextOptions_DEFINED
#define GrContextOptions_DEFINED
#include "SkTypes.h"
struct GrContextOptions {
GrContextOptions()
: fDrawPathToCompressedTexture(false)
, fSuppressPrints(false)
, fMaxTextureSizeOverride(SK_MaxS32)
, fMaxTileSizeOverride(0)
, fSuppressDualSourceBlending(false)
, fBufferMapThreshold(-1)
, fUseDrawInsteadOfPartialRenderTargetWrite(false)
, fImmediateMode(false)
, fClipBatchToBounds(false)
, fDrawBatchBounds(false)
, fMaxBatchLookback(-1)
, fMaxBatchLookahead(-1)
, fUseShaderSwizzling(false) {}
// EXPERIMENTAL
// May be removed in the future, or may become standard depending
// on the outcomes of a variety of internal tests.
bool fDrawPathToCompressedTexture;
// Suppress prints for the GrContext.
bool fSuppressPrints;
/** Overrides: These options override feature detection using backend API queries. These
overrides can only reduce the feature set or limits, never increase them beyond the
detected values. */
int fMaxTextureSizeOverride;
/** If non-zero, overrides the maximum size of a tile for sw-backed images and bitmaps rendered
by SkGpuDevice. */
int fMaxTileSizeOverride;
bool fSuppressDualSourceBlending;
/** the threshold in bytes above which we will use a buffer mapping API to map vertex and index
buffers to CPU memory in order to update them. A value of -1 means the GrContext should
deduce the optimal value for this platform. */
int fBufferMapThreshold;
/** some gpus have problems with partial writes of the rendertarget */
bool fUseDrawInsteadOfPartialRenderTargetWrite;
/** The GrContext operates in immediate mode. It will issue all draws to the backend API
immediately. Intended to ease debugging. */
bool fImmediateMode;
/** For debugging purposes turn each GrBatch's bounds into a clip rect. This is used to
verify that the clip bounds are conservative. */
bool fClipBatchToBounds;
/** For debugging purposes draw a wireframe device bounds rect for each GrBatch. The wire
frame rect is draw before the GrBatch in order to visualize batches that draw outside
of their dev bounds. */
bool fDrawBatchBounds;
/** For debugging, override the default maximum look-back or look-ahead window for GrBatch
combining. */
int fMaxBatchLookback;
int fMaxBatchLookahead;
/** Force us to do all swizzling manually in the shader and don't rely on extensions to do
swizzling. */
bool fUseShaderSwizzling;
};
#endif