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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrCaps.h"
#include "GrContextOptions.h"
#include "GrWindowRectangles.h"
static const char* pixel_config_name(GrPixelConfig config) {
switch (config) {
case kUnknown_GrPixelConfig: return "Unknown";
case kAlpha_8_GrPixelConfig: return "Alpha8";
case kGray_8_GrPixelConfig: return "Gray8";
case kRGB_565_GrPixelConfig: return "RGB565";
case kRGBA_4444_GrPixelConfig: return "RGBA444";
case kRGBA_8888_GrPixelConfig: return "RGBA8888";
case kBGRA_8888_GrPixelConfig: return "BGRA8888";
case kSRGBA_8888_GrPixelConfig: return "SRGBA8888";
case kSBGRA_8888_GrPixelConfig: return "SBGRA8888";
case kRGBA_8888_sint_GrPixelConfig: return "RGBA8888_sint";
case kRGBA_float_GrPixelConfig: return "RGBAFloat";
case kRG_float_GrPixelConfig: return "RGFloat";
case kAlpha_half_GrPixelConfig: return "AlphaHalf";
case kRGBA_half_GrPixelConfig: return "RGBAHalf";
}
SkFAIL("Invalid pixel config");
return "<invalid>";
}
GrCaps::GrCaps(const GrContextOptions& options) {
fMipMapSupport = false;
fNPOTTextureTileSupport = false;
fSRGBSupport = false;
fSRGBWriteControl = false;
fDiscardRenderTargetSupport = false;
fReuseScratchTextures = true;
fReuseScratchBuffers = true;
fGpuTracingSupport = false;
fOversizedStencilSupport = false;
fTextureBarrierSupport = false;
fSampleLocationsSupport = false;
fMultisampleDisableSupport = false;
fInstanceAttribSupport = false;
fUsesMixedSamples = false;
fPreferClientSideDynamicBuffers = false;
fFullClearIsFree = false;
fMustClearUploadedBufferData = false;
fSampleShadingSupport = false;
fFenceSyncSupport = false;
fCrossContextTextureSupport = false;
fUseDrawInsteadOfClear = false;
fInstancedSupport = InstancedSupport::kNone;
fBlendEquationSupport = kBasic_BlendEquationSupport;
fAdvBlendEqBlacklist = 0;
fMapBufferFlags = kNone_MapFlags;
fMaxVertexAttributes = 0;
fMaxRenderTargetSize = 1;
fMaxTextureSize = 1;
fMaxColorSampleCount = 0;
fMaxStencilSampleCount = 0;
fMaxRasterSamples = 0;
fMaxWindowRectangles = 0;
fSuppressPrints = options.fSuppressPrints;
fWireframeMode = options.fWireframeMode;
fBufferMapThreshold = options.fBufferMapThreshold;
fUseDrawInsteadOfPartialRenderTargetWrite = options.fUseDrawInsteadOfPartialRenderTargetWrite;
fUseDrawInsteadOfAllRenderTargetWrites = false;
fAvoidInstancedDrawsToFPTargets = false;
fAvoidStencilBuffers = false;
fPreferVRAMUseOverFlushes = true;
}
void GrCaps::applyOptionsOverrides(const GrContextOptions& options) {
this->onApplyOptionsOverrides(options);
fMaxTextureSize = SkTMin(fMaxTextureSize, options.fMaxTextureSizeOverride);
// If the max tile override is zero, it means we should use the max texture size.
if (!options.fMaxTileSizeOverride || options.fMaxTileSizeOverride > fMaxTextureSize) {
fMaxTileSize = fMaxTextureSize;
} else {
fMaxTileSize = options.fMaxTileSizeOverride;
}
if (fMaxWindowRectangles > GrWindowRectangles::kMaxWindows) {
SkDebugf("WARNING: capping window rectangles at %i. HW advertises support for %i.\n",
GrWindowRectangles::kMaxWindows, fMaxWindowRectangles);
fMaxWindowRectangles = GrWindowRectangles::kMaxWindows;
}
fAvoidStencilBuffers = options.fAvoidStencilBuffers;
}
static SkString map_flags_to_string(uint32_t flags) {
SkString str;
if (GrCaps::kNone_MapFlags == flags) {
str = "none";
} else {
SkASSERT(GrCaps::kCanMap_MapFlag & flags);
SkDEBUGCODE(flags &= ~GrCaps::kCanMap_MapFlag);
str = "can_map";
if (GrCaps::kSubset_MapFlag & flags) {
str.append(" partial");
} else {
str.append(" full");
}
SkDEBUGCODE(flags &= ~GrCaps::kSubset_MapFlag);
}
SkASSERT(0 == flags); // Make sure we handled all the flags.
return str;
}
SkString GrCaps::dump() const {
SkString r;
static const char* gNY[] = {"NO", "YES"};
r.appendf("MIP Map Support : %s\n", gNY[fMipMapSupport]);
r.appendf("NPOT Texture Tile Support : %s\n", gNY[fNPOTTextureTileSupport]);
r.appendf("sRGB Support : %s\n", gNY[fSRGBSupport]);
r.appendf("sRGB Write Control : %s\n", gNY[fSRGBWriteControl]);
r.appendf("Discard Render Target Support : %s\n", gNY[fDiscardRenderTargetSupport]);
r.appendf("Reuse Scratch Textures : %s\n", gNY[fReuseScratchTextures]);
r.appendf("Reuse Scratch Buffers : %s\n", gNY[fReuseScratchBuffers]);
r.appendf("Gpu Tracing Support : %s\n", gNY[fGpuTracingSupport]);
r.appendf("Oversized Stencil Support : %s\n", gNY[fOversizedStencilSupport]);
r.appendf("Texture Barrier Support : %s\n", gNY[fTextureBarrierSupport]);
r.appendf("Sample Locations Support : %s\n", gNY[fSampleLocationsSupport]);
r.appendf("Multisample disable support : %s\n", gNY[fMultisampleDisableSupport]);
r.appendf("Instance Attrib Support : %s\n", gNY[fInstanceAttribSupport]);
r.appendf("Uses Mixed Samples : %s\n", gNY[fUsesMixedSamples]);
r.appendf("Prefer client-side dynamic buffers : %s\n", gNY[fPreferClientSideDynamicBuffers]);
r.appendf("Full screen clear is free : %s\n", gNY[fFullClearIsFree]);
r.appendf("Must clear buffer memory : %s\n", gNY[fMustClearUploadedBufferData]);
r.appendf("Sample shading support : %s\n", gNY[fSampleShadingSupport]);
r.appendf("Fence sync support : %s\n", gNY[fFenceSyncSupport]);
r.appendf("Cross context texture support : %s\n", gNY[fCrossContextTextureSupport]);
r.appendf("Draw Instead of Clear [workaround] : %s\n", gNY[fUseDrawInsteadOfClear]);
r.appendf("Draw Instead of TexSubImage [workaround] : %s\n",
gNY[fUseDrawInsteadOfPartialRenderTargetWrite]);
r.appendf("Prefer VRAM Use over flushes [workaround] : %s\n", gNY[fPreferVRAMUseOverFlushes]);
if (this->advancedBlendEquationSupport()) {
r.appendf("Advanced Blend Equation Blacklist : 0x%x\n", fAdvBlendEqBlacklist);
}
r.appendf("Max Vertex Attributes : %d\n", fMaxVertexAttributes);
r.appendf("Max Texture Size : %d\n", fMaxTextureSize);
r.appendf("Max Render Target Size : %d\n", fMaxRenderTargetSize);
r.appendf("Max Color Sample Count : %d\n", fMaxColorSampleCount);
r.appendf("Max Stencil Sample Count : %d\n", fMaxStencilSampleCount);
r.appendf("Max Raster Samples : %d\n", fMaxRasterSamples);
r.appendf("Max Window Rectangles : %d\n", fMaxWindowRectangles);
static const char* kInstancedSupportNames[] = {
"None",
"Basic",
"Multisampled",
"Mixed Sampled",
};
GR_STATIC_ASSERT(0 == (int)InstancedSupport::kNone);
GR_STATIC_ASSERT(1 == (int)InstancedSupport::kBasic);
GR_STATIC_ASSERT(2 == (int)InstancedSupport::kMultisampled);
GR_STATIC_ASSERT(3 == (int)InstancedSupport::kMixedSampled);
GR_STATIC_ASSERT(4 == SK_ARRAY_COUNT(kInstancedSupportNames));
r.appendf("Instanced Support : %s\n",
kInstancedSupportNames[(int)fInstancedSupport]);
static const char* kBlendEquationSupportNames[] = {
"Basic",
"Advanced",
"Advanced Coherent",
};
GR_STATIC_ASSERT(0 == kBasic_BlendEquationSupport);
GR_STATIC_ASSERT(1 == kAdvanced_BlendEquationSupport);
GR_STATIC_ASSERT(2 == kAdvancedCoherent_BlendEquationSupport);
GR_STATIC_ASSERT(SK_ARRAY_COUNT(kBlendEquationSupportNames) == kLast_BlendEquationSupport + 1);
r.appendf("Blend Equation Support : %s\n",
kBlendEquationSupportNames[fBlendEquationSupport]);
r.appendf("Map Buffer Support : %s\n",
map_flags_to_string(fMapBufferFlags).c_str());
SkASSERT(!this->isConfigRenderable(kUnknown_GrPixelConfig, false));
SkASSERT(!this->isConfigRenderable(kUnknown_GrPixelConfig, true));
for (size_t i = 1; i < kGrPixelConfigCnt; ++i) {
GrPixelConfig config = static_cast<GrPixelConfig>(i);
r.appendf("%s is renderable: %s, with MSAA: %s\n",
pixel_config_name(config),
gNY[this->isConfigRenderable(config, false)],
gNY[this->isConfigRenderable(config, true)]);
}
SkASSERT(!this->isConfigTexturable(kUnknown_GrPixelConfig));
for (size_t i = 1; i < kGrPixelConfigCnt; ++i) {
GrPixelConfig config = static_cast<GrPixelConfig>(i);
r.appendf("%s is uploadable to a texture: %s\n",
pixel_config_name(config),
gNY[this->isConfigTexturable(config)]);
}
return r;
}
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