| /* |
| * 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() {} |
| |
| // Suppress prints for the GrContext. |
| bool fSuppressPrints = false; |
| |
| /** 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 = SK_MaxS32; |
| |
| /** If non-zero, overrides the maximum size of a tile for sw-backed images and bitmaps rendered |
| by SkGpuDevice. */ |
| int fMaxTileSizeOverride = 0; |
| bool fSuppressDualSourceBlending = false; |
| |
| /** 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 = -1; |
| |
| /** some gpus have problems with partial writes of the rendertarget */ |
| bool fUseDrawInsteadOfPartialRenderTargetWrite = false; |
| |
| /** The GrContext operates in immediate mode. It will issue all draws to the backend API |
| immediately. Intended to ease debugging. */ |
| bool fImmediateMode = false; |
| |
| /** For debugging purposes turn each GrDrawOp's bounds into a clip rect. This is used to |
| verify that the clip bounds are conservative. */ |
| bool fClipDrawOpsToBounds = false; |
| |
| /** For debugging, override the default maximum look-back or look-ahead window for GrOp |
| combining. */ |
| int fMaxOpCombineLookback = -1; |
| int fMaxOpCombineLookahead = -1; |
| |
| /** Force us to do all swizzling manually in the shader and don't rely on extensions to do |
| swizzling. */ |
| bool fUseShaderSwizzling = false; |
| |
| /** Construct mipmaps manually, via repeated downsampling draw-calls. This is used when |
| the driver's implementation (glGenerateMipmap) contains bugs. This requires mipmap |
| level and LOD control (ie desktop or ES3). */ |
| bool fDoManualMipmapping = false; |
| |
| /** Enable instanced rendering as long as all required functionality is supported by the HW. |
| Instanced rendering is still experimental at this point and disabled by default. */ |
| bool fEnableInstancedRendering = false; |
| |
| /** Disables distance field rendering for paths. Distance field computation can be expensive |
| and yields no benefit if a path is not rendered multiple times with different transforms */ |
| bool fDisableDistanceFieldPaths = false; |
| |
| /** |
| * If true this allows path mask textures to be cached. This is only really useful if paths |
| * are commonly rendered at the same scale and fractional translation. |
| */ |
| bool fAllowPathMaskCaching = false; |
| |
| /** |
| * Force all path draws to go through through the sw-rasterize-to-texture code path (assuming |
| * the path is not recognized as a simpler shape (e.g. a rrect). This is intended for testing |
| * purposes. |
| */ |
| bool fForceSWPathMasks = false; |
| |
| /** |
| * If true, sRGB support will not be enabled unless sRGB decoding can be disabled (via an |
| * extension). If mixed use of "legacy" mode and sRGB/color-correct mode is not required, this |
| * can be set to false, which will significantly expand the number of devices that qualify for |
| * sRGB support. |
| */ |
| bool fRequireDecodeDisableForSRGB = true; |
| }; |
| |
| #endif |