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Put caps in a struct, move up to GrDrawTarget

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Review URL: http://codereview.appspot.com/5088049



git-svn-id: http://skia.googlecode.com/svn/trunk@2314 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
bsalomon@google.com 2011-09-22 21:01:31 +00:00
parent f1fd30da32
commit 18c9c198f5
15 changed files with 459 additions and 533 deletions
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2
gpu/src/GrAAHairLinePathRenderer.cpp
View File

@ -87,7 +87,7 @@ GrPathRenderer* GrAAHairLinePathRenderer::Create(GrContext* context) {
}
bool GrAAHairLinePathRenderer::CanBeUsed(const GrContext* context) {
return context->getGpu()->supportsShaderDerivatives();
return context->getGpu()->getCaps().fShaderDerivativeSupport;
}

6
gpu/src/GrBufferAllocPool.cpp
View File

@ -91,7 +91,7 @@ void GrBufferAllocPool::reset() {
fFirstPreallocBuffer = (fFirstPreallocBuffer + fPreallocBuffersInUse) %
fPreallocBuffers.count();
}
fCpuData.reset(fGpu->supportsBufferLocking() ? 0 : fMinBlockSize);
fCpuData.reset(fGpu->getCaps().fBufferLockSupport ? 0 : fMinBlockSize);
GrAssert(0 == fPreallocBuffersInUse);
VALIDATE();
}
@ -276,7 +276,7 @@ bool GrBufferAllocPool::createBlock(size_t requestSize) {
GrAssert(NULL == fBufferPtr);
if (fGpu->supportsBufferLocking() &&
if (fGpu->getCaps().fBufferLockSupport &&
size > GR_GEOM_BUFFER_LOCK_THRESHOLD &&
(!fFrequentResetHint || requestSize > GR_GEOM_BUFFER_LOCK_THRESHOLD)) {
fBufferPtr = block.fBuffer->lock();
@ -318,7 +318,7 @@ void GrBufferAllocPool::flushCpuData(GrGeometryBuffer* buffer,
GrAssert(flushSize <= buffer->sizeInBytes());
bool updated = false;
if (fGpu->supportsBufferLocking() &&
if (fGpu->getCaps().fBufferLockSupport &&
flushSize > GR_GEOM_BUFFER_LOCK_THRESHOLD) {
void* data = buffer->lock();
if (NULL != data) {

38
gpu/src/GrContext.cpp
View File

@ -166,13 +166,13 @@ bool gen_texture_key_values(const GrGpu* gpu,
// we assume we only need 16 bits of width and height
// assert that texture creation will fail anyway if this assumption
// would cause key collisions.
GrAssert(gpu->maxTextureSize() <= SK_MaxU16);
GrAssert(gpu->getCaps().fMaxTextureSize <= SK_MaxU16);
v[0] = clientKey & 0xffffffffUL;
v[1] = (clientKey >> 32) & 0xffffffffUL;
v[2] = width | (height << 16);
v[3] = 0;
if (!gpu->npotTextureTileSupport()) {
if (!gpu->getCaps().fNPOTTextureTileSupport) {
bool isPow2 = GrIsPow2(width) && GrIsPow2(height);
bool tiled = (sampler.getWrapX() != GrSamplerState::kClamp_WrapMode) ||
@ -310,10 +310,12 @@ GrContext::TextureCacheEntry GrContext::createAndLockTexture(TextureKey key,
rtDesc.fFlags = rtDesc.fFlags |
kRenderTarget_GrTextureFlagBit |
kNoStencil_GrTextureFlagBit;
rtDesc.fWidth = GrNextPow2(GrMax<int>(desc.fWidth,
fGpu->minRenderTargetWidth()));
rtDesc.fHeight = GrNextPow2(GrMax<int>(desc.fHeight,
fGpu->minRenderTargetHeight()));
rtDesc.fWidth =
GrNextPow2(GrMax<int>(desc.fWidth,
fGpu->getCaps().fMinRenderTargetWidth));
rtDesc.fHeight =
GrNextPow2(GrMax<int>(desc.fHeight,
fGpu->getCaps().fMinRenderTargetHeight));
GrTexture* texture = fGpu->createTexture(rtDesc, NULL, 0);
@ -510,11 +512,11 @@ void GrContext::setTextureCacheLimits(int maxTextures, size_t maxTextureBytes) {
}
int GrContext::getMaxTextureSize() const {
return fGpu->maxTextureSize();
return fGpu->getCaps().fMaxTextureSize;
}
int GrContext::getMaxRenderTargetSize() const {
return fGpu->maxRenderTargetSize();
return fGpu->getCaps().fMaxRenderTargetSize;
}
///////////////////////////////////////////////////////////////////////////////
@ -541,21 +543,21 @@ GrResource* GrContext::createPlatformSurface(const GrPlatformSurfaceDesc& desc)
bool GrContext::supportsIndex8PixelConfig(const GrSamplerState& sampler,
int width, int height) const {
if (!fGpu->supports8BitPalette()) {
const GrDrawTarget::Caps& caps = fGpu->getCaps();
if (!caps.f8BitPaletteSupport) {
return false;
}
bool isPow2 = GrIsPow2(width) && GrIsPow2(height);
if (!isPow2) {
if (!fGpu->npotTextureSupport()) {
if (!caps.fNPOTTextureSupport) {
return false;
}
bool tiled = sampler.getWrapX() != GrSamplerState::kClamp_WrapMode ||
sampler.getWrapY() != GrSamplerState::kClamp_WrapMode;
if (tiled && !fGpu->npotTextureTileSupport()) {
if (tiled && !caps.fNPOTTextureTileSupport) {
return false;
}
}
@ -659,7 +661,7 @@ bool GrContext::doOffscreenAA(GrDrawTarget* target,
// Line primitves are always rasterized as 1 pixel wide.
// Super-sampling would make them too thin but MSAA would be OK.
if (isHairLines &&
(!PREFER_MSAA_OFFSCREEN_AA || !fGpu->supportsFullsceneAA())) {
(!PREFER_MSAA_OFFSCREEN_AA || !fGpu->getCaps().fFSAASupport)) {
return false;
}
if (target->getRenderTarget()->isMultisampled()) {
@ -708,12 +710,12 @@ bool GrContext::prepareForOffscreenAA(GrDrawTarget* target,
desc.fFormat = kRGBA_8888_GrPixelConfig;
if (PREFER_MSAA_OFFSCREEN_AA && fGpu->supportsFullsceneAA()) {
if (PREFER_MSAA_OFFSCREEN_AA && fGpu->getCaps().fFSAASupport) {
record->fDownsample = OffscreenRecord::kFSAA_Downsample;
record->fScale = 1;
desc.fAALevel = kMed_GrAALevel;
} else {
record->fDownsample = (fGpu->supportsShaders()) ?
record->fDownsample = fGpu->getCaps().fShaderSupport ?
OffscreenRecord::k4x4SinglePass_Downsample :
OffscreenRecord::k4x4TwoPass_Downsample;
record->fScale = OFFSCREEN_SSAA_SCALE;
@ -1519,7 +1521,7 @@ void GrContext::drawPath(const GrPaint& paint, const GrPath& path,
////////////////////////////////////////////////////////////////////////////////
bool GrContext::supportsShaders() const {
return fGpu->supportsShaders();
return fGpu->getCaps().fShaderSupport;
}
void GrContext::flush(int flagsBitfield) {
@ -1773,8 +1775,8 @@ GrContext::GrContext(GrGpu* gpu) {
fAAFillRectIndexBuffer = NULL;
fAAStrokeRectIndexBuffer = NULL;
int gpuMaxOffscreen = fGpu->maxRenderTargetSize();
if (!PREFER_MSAA_OFFSCREEN_AA || !fGpu->supportsFullsceneAA()) {
int gpuMaxOffscreen = gpu->getCaps().fMaxRenderTargetSize;
if (!PREFER_MSAA_OFFSCREEN_AA || !gpu->getCaps().fFSAASupport) {
gpuMaxOffscreen /= OFFSCREEN_SSAA_SCALE;
}
fMaxOffscreenAASize = GrMin(GR_MAX_OFFSCREEN_AA_SIZE, gpuMaxOffscreen);

20
gpu/src/GrDrawTarget.cpp
View File

@ -1041,3 +1041,23 @@ void GrDrawTarget::AutoReleaseGeometry::reset() {
fIndices = NULL;
}
void GrDrawTarget::Caps::print() const {
static const char* gNY[] = {"NO", "YES"};
GrPrintf("8 Bit Palette Support : %s\n", gNY[f8BitPaletteSupport]);
GrPrintf("NPOT Texture Support : %s\n", gNY[fNPOTTextureSupport]);
GrPrintf("NPOT Texture Tile Support : %s\n", gNY[fNPOTTextureTileSupport]);
GrPrintf("NPOT Render Target Support : %s\n", gNY[fNPOTRenderTargetSupport]);
GrPrintf("Two Sided Stencil Support : %s\n", gNY[fTwoSidedStencilSupport]);
GrPrintf("Stencil Wrap Ops Support : %s\n", gNY[fStencilWrapOpsSupport]);
GrPrintf("HW AA Lines Support : %s\n", gNY[fHWAALineSupport]);
GrPrintf("Shader Support : %s\n", gNY[fShaderSupport]);
GrPrintf("Shader Derivative Support : %s\n", gNY[fShaderDerivativeSupport]);
GrPrintf("FSAA Support : %s\n", gNY[fFSAASupport]);
GrPrintf("Dual Source Blending Support: %s\n", gNY[fDualSourceBlendingSupport]);
GrPrintf("Buffer Lock Support : %s\n", gNY[fBufferLockSupport]);
GrPrintf("Min Render Target Width : %d\n", fMinRenderTargetWidth);
GrPrintf("Min Render Target Height : %d\n", fMinRenderTargetHeight);
GrPrintf("Max Texture Size : %d\n", fMaxTextureSize);
GrPrintf("Max Render Target Size : %d\n", fMaxRenderTargetSize);
}

37
gpu/src/GrDrawTarget.h
View File

@ -29,6 +29,35 @@ class GrIndexBuffer;
class GrDrawTarget : public GrRefCnt {
public:
/**
* Represents the draw target capabilities.
*/
struct Caps {
Caps() { memset(this, 0, sizeof(Caps)); }
Caps(const Caps& c) { *this = c; }
Caps& operator= (const Caps& c) {
memcpy(this, &c, sizeof(Caps));
return *this;
}
void print() const;
bool f8BitPaletteSupport : 1;
bool fNPOTTextureSupport : 1;
bool fNPOTTextureTileSupport : 1;
bool fNPOTRenderTargetSupport : 1;
bool fTwoSidedStencilSupport : 1;
bool fStencilWrapOpsSupport : 1;
bool fHWAALineSupport : 1;
bool fShaderSupport : 1;
bool fShaderDerivativeSupport : 1;
bool fFSAASupport : 1;
bool fDualSourceBlendingSupport : 1;
bool fBufferLockSupport : 1;
int fMinRenderTargetWidth;
int fMinRenderTargetHeight;
int fMaxRenderTargetSize;
int fMaxTextureSize;
};
/**
* Number of texture stages. Each stage takes as input a color and
* 2D texture coordinates. The color input to the first enabled stage is the
@ -48,7 +77,6 @@ public:
kMaxTexCoords = kNumStages
};
/**
* The absolute maximum number of edges that may be specified for
* a single draw call when performing edge antialiasing. This is used for
@ -196,6 +224,11 @@ public:
GrDrawTarget();
virtual ~GrDrawTarget();
/**
* Gets the capabilities of the draw target.
*/
const Caps& getCaps() const { return fCaps; }
/**
* Sets the current clip to the region specified by clip. All draws will be
* clipped against this clip if kClip_StateBit is enabled.
@ -1307,6 +1340,8 @@ protected:
DrState fCurrDrawState;
Caps fCaps;
private:
// called when setting a new vert/idx source to unref prev vb/ib
void releasePreviousVertexSource();

6
gpu/src/GrGLIndexBuffer.cpp
View File

@ -51,7 +51,7 @@ GrGLuint GrGLIndexBuffer::bufferID() const {
void* GrGLIndexBuffer::lock() {
GrAssert(fBufferID);
GrAssert(!isLocked());
if (GPUGL->supportsBufferLocking()) {
if (this->getGpu()->getCaps().fBufferLockSupport) {
this->bind();
// Let driver know it can discard the old data
GL_CALL(BufferData(GR_GL_ELEMENT_ARRAY_BUFFER,
@ -76,7 +76,7 @@ void* GrGLIndexBuffer::lockPtr() const {
void GrGLIndexBuffer::unlock() {
GrAssert(fBufferID);
GrAssert(isLocked());
GrAssert(GPUGL->supportsBufferLocking());
GrAssert(this->getGpu()->getCaps().fBufferLockSupport);
this->bind();
GL_CALL(UnmapBuffer(GR_GL_ELEMENT_ARRAY_BUFFER));
@ -85,7 +85,7 @@ void GrGLIndexBuffer::unlock() {
bool GrGLIndexBuffer::isLocked() const {
#if GR_DEBUG
if (this->isValid() && GPUGL->supportsBufferLocking()) {
if (this->isValid() && this->getGpu()->getCaps().fBufferLockSupport) {
this->bind();
GrGLint mapped;
GL_CALL(GetBufferParameteriv(GR_GL_ELEMENT_ARRAY_BUFFER,

6
gpu/src/GrGLVertexBuffer.cpp
View File

@ -50,7 +50,7 @@ GrGLuint GrGLVertexBuffer::bufferID() const {
void* GrGLVertexBuffer::lock() {
GrAssert(fBufferID);
GrAssert(!isLocked());
if (GPUGL->supportsBufferLocking()) {
if (this->getGpu()->getCaps().fBufferLockSupport) {
this->bind();
// Let driver know it can discard the old data
GL_CALL(BufferData(GR_GL_ARRAY_BUFFER, this->sizeInBytes(), NULL,
@ -72,7 +72,7 @@ void GrGLVertexBuffer::unlock() {
GrAssert(fBufferID);
GrAssert(isLocked());
GrAssert(GPUGL->supportsBufferLocking());
GrAssert(this->getGpu()->getCaps().fBufferLockSupport);
this->bind();
GL_CALL(UnmapBuffer(GR_GL_ARRAY_BUFFER));
@ -82,7 +82,7 @@ void GrGLVertexBuffer::unlock() {
bool GrGLVertexBuffer::isLocked() const {
GrAssert(!this->isValid() || fBufferID);
#if GR_DEBUG
if (this->isValid() && GPUGL->supportsBufferLocking()) {
if (this->isValid() && this->getGpu()->getCaps().fBufferLockSupport) {
GrGLint mapped;
this->bind();
GL_CALL(GetBufferParameteriv(GR_GL_ARRAY_BUFFER,

3
gpu/src/GrGpu.cpp
View File

@ -31,8 +31,7 @@ extern void gr_run_unittests();
#define DEBUG_INVAL_START_IDX -1
GrGpu::GrGpu()
: f8bitPaletteSupport(false)
, fContext(NULL)
: fContext(NULL)
, fVertexPool(NULL)
, fIndexPool(NULL)
, fVertexPoolUseCnt(0)

139
gpu/src/GrGpu.h
View File

@ -54,6 +54,7 @@ struct GrGpuStats {
class GrGpu : public GrDrawTarget {
public:
/**
* Additional blend coeffecients for dual source blending, not exposed
* through GrPaint/GrContext.
@ -146,118 +147,6 @@ public:
*/
GrIndexBuffer* createIndexBuffer(uint32_t size, bool dynamic);
/**
* Are 8 bit paletted textures supported.
*
* @return true if 8bit palette textures are supported, false otherwise
*/
bool supports8BitPalette() const { return f8bitPaletteSupport; }
/**
* returns true if two sided stenciling is supported. If false then only
* the front face values of the GrStencilSettings
* @return true if only a single stencil pass is needed.
*/
bool supportsTwoSidedStencil() const
{ return fTwoSidedStencilSupport; }
/**
* returns true if stencil wrap is supported. If false then
* kIncWrap_StencilOp and kDecWrap_StencilOp are treated as
* kIncClamp_StencilOp and kDecClamp_StencilOp, respectively.
* @return true if stencil wrap ops are supported.
*/
bool supportsStencilWrapOps() const
{ return fStencilWrapOpsSupport; }
/**
* Checks whether locking vertex and index buffers is supported.
*
* @return true if locking is supported.
*/
bool supportsBufferLocking() const { return fBufferLockSupport; }
/**
* Does the 3D API support anti-aliased lines. If so then line primitive
* types will use this functionality when the AA state flag is set.
*/
bool supportsHWAALines() const { return fAALineSupport; }
/**
* Are shaders supported.
*/
bool supportsShaders() const { return fShaderSupport; }
/**
* Are derivative instructions supported in fragment shaders
*/
bool supportsShaderDerivatives() const { return fShaderDerivativeSupport; }
/**
* Does the subclass support GrSamplerState::k4x4Downsample_Filter
*/
bool supports4x4DownsampleFilter() const { return f4X4DownsampleFilterSupport; }
/**
* Does this instance support dual-source blending? Required for proper
* blending with partial coverage with certain blend modes (dst coeff is
* not 1, ISA, or ISC)
*/
bool supportsDualSourceBlending() const {
return fDualSourceBlendingSupport;
}
/**
* Gets the minimum width of a render target. If a texture/rt is created
* with a width less than this size the GrGpu object will clamp it to this
* value.
*/
int minRenderTargetWidth() const { return fMinRenderTargetWidth; }
/**
* Gets the minimum width of a render target. If a texture/rt is created
* with a height less than this size the GrGpu object will clamp it to this
* value.
*/
int minRenderTargetHeight() const { return fMinRenderTargetHeight; }
/**
* Reports whether full scene anti-aliasing is supported.
*/
bool supportsFullsceneAA() const { return fFSAASupport; }
/**
* Returns true if NPOT textures can be created
*
* @return true if NPOT textures can be created
*/
bool npotTextureSupport() const { return fNPOTTextureSupport; }
/**
* Returns true if NPOT textures can be repeat/mirror tiled.
*
* @return true if NPOT textures can be tiled
*/
bool npotTextureTileSupport() const { return fNPOTTextureTileSupport; }
/**
* Returns true if a NPOT texture can be a rendertarget
*
* @return the true if NPOT texture/rendertarget can be created.
*/
bool npotRenderTargetSupport() const { return fNPOTRenderTargetSupport; }
/**
* Gets the largest allowed width and height of a texture.
*/
int maxTextureSize() const { return fMaxTextureSize; }
/**
* Gets the largest allowed width and height of a render target.
*/
int maxRenderTargetSize() const { return fMaxRenderTargetSize; }
virtual void clear(const GrIRect* rect, GrColor color);
/**
* Returns an index buffer that can be used to render quads.
* Six indices per quad: 0, 1, 2, 0, 2, 3, etc.
@ -331,6 +220,7 @@ public:
// GrDrawTarget overrides
virtual bool willUseHWAALines() const;
virtual void clear(const GrIRect* rect, GrColor color);
protected:
enum PrivateStateBits {
@ -363,31 +253,6 @@ protected:
// and the client isn't using the stencil test.
static const GrStencilSettings gClipStencilSettings;
// defaults to false, subclass can set true to support palleted textures
bool f8bitPaletteSupport;
// set by subclass
bool fNPOTTextureSupport;
bool fNPOTTextureTileSupport;
bool fNPOTRenderTargetSupport;
bool fTwoSidedStencilSupport;
bool fStencilWrapOpsSupport;
bool fAALineSupport;
bool fShaderSupport;
bool fShaderDerivativeSupport;
bool fFSAASupport;
bool f4X4DownsampleFilterSupport; // supports GrSamplerState::k4x4Downsample_Filter
bool fDualSourceBlendingSupport;
// set by subclass to true if index and vertex buffers can be locked, false
// otherwise.
bool fBufferLockSupport;
// set by subclass
int fMinRenderTargetWidth;
int fMinRenderTargetHeight;
int fMaxRenderTargetSize;
int fMaxTextureSize;
GrGpuStats fStats;

634
gpu/src/GrGpuGL.cpp
View File

@ -257,9 +257,9 @@ static int probe_for_min_render_target_width(const GrGLInterface* gl,
return minRenderTargetWidth;
}
GrGpuGL::GrGpuGL(const GrGLInterface* gl, GrGLBinding glBinding) {
GrGpuGL::GrGpuGL(const GrGLInterface* gl, GrGLBinding glBinding)
: fStencilFormats(8) {
fPrintedCaps = false;
gl->ref();
fGL = gl;
@ -303,241 +303,7 @@ GrGpuGL::GrGpuGL(const GrGLInterface* gl, GrGLBinding glBinding)
this->resetDirtyFlags();
GrGLint maxTextureUnits;
// check FS and fixed-function texture unit limits
// we only use textures in the fragment stage currently.
// checks are > to make sure we have a spare unit.
if (kES1_GrGLBinding != this->glBinding()) {
GR_GL_GetIntegerv(gl, GR_GL_MAX_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
GrAssert(maxTextureUnits > kNumStages);
}
if (kES2_GrGLBinding != this->glBinding()) {
GR_GL_GetIntegerv(gl, GR_GL_MAX_TEXTURE_UNITS, &maxTextureUnits);
GrAssert(maxTextureUnits > kNumStages);
}
if (kES2_GrGLBinding == this->glBinding()) {
GR_GL_GetIntegerv(gl, GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS,
&fMaxFragmentUniformVectors);
} else if (kDesktop_GrGLBinding != this->glBinding()) {
GrGLint max;
GR_GL_GetIntegerv(gl, GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &max);
fMaxFragmentUniformVectors = max / 4;
} else {
fMaxFragmentUniformVectors = 16;
}
////////////////////////////////////////////////////////////////////////////
// Check for supported features.
this->setupStencilFormats();
GrGLint numFormats;
GR_GL_GetIntegerv(gl, GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numFormats);
SkAutoSTMalloc<10, GrGLint> formats(numFormats);
GR_GL_GetIntegerv(gl, GR_GL_COMPRESSED_TEXTURE_FORMATS, formats);
for (int i = 0; i < numFormats; ++i) {
if (formats[i] == GR_GL_PALETTE8_RGBA8) {
f8bitPaletteSupport = true;
break;
}
}
if (gPrintStartupSpew) {
GrPrintf("Palette8 support: %s\n", (f8bitPaletteSupport ? "YES" : "NO"));
}
GR_STATIC_ASSERT(0 == kNone_GrAALevel);
GR_STATIC_ASSERT(1 == kLow_GrAALevel);
GR_STATIC_ASSERT(2 == kMed_GrAALevel);
GR_STATIC_ASSERT(3 == kHigh_GrAALevel);
memset(fAASamples, 0, sizeof(fAASamples));
fMSFBOType = kNone_MSFBO;
if (kDesktop_GrGLBinding != this->glBinding()) {
if (this->hasExtension("GL_CHROMIUM_framebuffer_multisample")) {
// chrome's extension is equivalent to the EXT msaa
// and fbo_blit extensions.
fMSFBOType = kDesktopEXT_MSFBO;
} else if (this->hasExtension("GL_APPLE_framebuffer_multisample")) {
fMSFBOType = kAppleES_MSFBO;
}
} else {
if ((fGLVersion >= GR_GL_VER(3,0)) || this->hasExtension("GL_ARB_framebuffer_object")) {
fMSFBOType = kDesktopARB_MSFBO;
} else if (this->hasExtension("GL_EXT_framebuffer_multisample") &&
this->hasExtension("GL_EXT_framebuffer_blit")) {
fMSFBOType = kDesktopEXT_MSFBO;
}
}
if (gPrintStartupSpew) {
switch (fMSFBOType) {
case kNone_MSFBO:
GrPrintf("MSAA Support: NONE\n");
break;
case kDesktopARB_MSFBO:
GrPrintf("MSAA Support: DESKTOP ARB.\n");
break;
case kDesktopEXT_MSFBO:
GrPrintf("MSAA Support: DESKTOP EXT.\n");
break;
case kAppleES_MSFBO:
GrPrintf("MSAA Support: APPLE ES.\n");
break;
}
}
if (kNone_MSFBO != fMSFBOType) {
GrGLint maxSamples;
GR_GL_GetIntegerv(gl, GR_GL_MAX_SAMPLES, &maxSamples);
if (maxSamples > 1 ) {
fAASamples[kNone_GrAALevel] = 0;
fAASamples[kLow_GrAALevel] = GrMax(2,
GrFixedFloorToInt((GR_FixedHalf) *
maxSamples));
fAASamples[kMed_GrAALevel] = GrMax(2,
GrFixedFloorToInt(((GR_Fixed1*3)/4) *
maxSamples));
fAASamples[kHigh_GrAALevel] = maxSamples;
}
if (gPrintStartupSpew) {
GrPrintf("\tMax Samples: %d\n", maxSamples);
}
}
fFSAASupport = fAASamples[kHigh_GrAALevel] > 0;
if (kDesktop_GrGLBinding == this->glBinding()) {
fHasStencilWrap = (fGLVersion >= GR_GL_VER(1,4)) ||
this->hasExtension("GL_EXT_stencil_wrap");
} else {
fHasStencilWrap = (fGLVersion >= GR_GL_VER(2,0)) ||
this->hasExtension("GL_OES_stencil_wrap");
}
if (gPrintStartupSpew) {
GrPrintf("Stencil Wrap: %s\n", (fHasStencilWrap ? "YES" : "NO"));
}
if (kDesktop_GrGLBinding == this->glBinding()) {
// we could also look for GL_ATI_separate_stencil extension or
// GL_EXT_stencil_two_side but they use different function signatures
// than GL2.0+ (and than each other).
fTwoSidedStencilSupport = (fGLVersion >= GR_GL_VER(2,0));
// supported on GL 1.4 and higher or by extension
fStencilWrapOpsSupport = (fGLVersion >= GR_GL_VER(1,4)) ||
this->hasExtension("GL_EXT_stencil_wrap");
} else {
// ES 2 has two sided stencil but 1.1 doesn't. There doesn't seem to be
// an ES1 extension.
fTwoSidedStencilSupport = (fGLVersion >= GR_GL_VER(2,0));
// stencil wrap support is in ES2, ES1 requires extension.
fStencilWrapOpsSupport = (fGLVersion >= GR_GL_VER(2,0)) ||
this->hasExtension("GL_OES_stencil_wrap");
}
if (gPrintStartupSpew) {
GrPrintf("Stencil Caps: TwoSide: %s, Wrap: %s\n",
(fTwoSidedStencilSupport ? "YES" : "NO"),
(fStencilWrapOpsSupport ? "YES" : "NO"));
}
if (kDesktop_GrGLBinding == this->glBinding()) {
fRGBA8Renderbuffer = true;
} else {
fRGBA8Renderbuffer = this->hasExtension("GL_OES_rgb8_rgba8");
}
if (gPrintStartupSpew) {
GrPrintf("RGBA Renderbuffer: %s\n", (fRGBA8Renderbuffer ? "YES" : "NO"));
}
if (kDesktop_GrGLBinding != this->glBinding()) {
if (GR_GL_32BPP_COLOR_FORMAT == GR_GL_BGRA) {
GrAssert(this->hasExtension("GL_EXT_texture_format_BGRA8888"));
}
}
if (kDesktop_GrGLBinding == this->glBinding()) {
fBufferLockSupport = true; // we require VBO support and the desktop VBO
// extension includes glMapBuffer.
} else {
fBufferLockSupport = this->hasExtension("GL_OES_mapbuffer");
}
if (gPrintStartupSpew) {
GrPrintf("Map Buffer: %s\n", (fBufferLockSupport ? "YES" : "NO"));
}
if (kDesktop_GrGLBinding == this->glBinding()) {
if (fGLVersion >= GR_GL_VER(2,0) ||
this->hasExtension("GL_ARB_texture_non_power_of_two")) {
fNPOTTextureTileSupport = true;
fNPOTTextureSupport = true;
} else {
fNPOTTextureTileSupport = false;
fNPOTTextureSupport = false;
}
} else {
if (fGLVersion >= GR_GL_VER(2,0)) {
fNPOTTextureSupport = true;
fNPOTTextureTileSupport = this->hasExtension("GL_OES_texture_npot");
} else {
fNPOTTextureSupport =
this->hasExtension("GL_APPLE_texture_2D_limited_npot");
fNPOTTextureTileSupport = false;
}
}
fAALineSupport = (kDesktop_GrGLBinding == this->glBinding());
////////////////////////////////////////////////////////////////////////////
// Experiments to determine limitations that can't be queried.
// TODO: Make these a preprocess that generate some compile time constants.
// TODO: probe once at startup, rather than once per context creation.
int expectNPOTTargets = gl->fNPOTRenderTargetSupport;
if (expectNPOTTargets == kProbe_GrGLCapability) {
fNPOTRenderTargetSupport =
probe_for_npot_render_target_support(gl, fNPOTTextureSupport);
} else {
GrAssert(expectNPOTTargets == 0 || expectNPOTTargets == 1);
fNPOTRenderTargetSupport = static_cast<bool>(expectNPOTTargets);
}
if (gPrintStartupSpew) {
if (fNPOTTextureSupport) {
GrPrintf("NPOT textures supported\n");
if (fNPOTTextureTileSupport) {
GrPrintf("NPOT texture tiling supported\n");
} else {
GrPrintf("NPOT texture tiling NOT supported\n");
}
if (fNPOTRenderTargetSupport) {
GrPrintf("NPOT render targets supported\n");
} else {
GrPrintf("NPOT render targets NOT supported\n");
}
} else {
GrPrintf("NPOT textures NOT supported\n");
}
}
GR_GL_GetIntegerv(gl, GR_GL_MAX_TEXTURE_SIZE, &fMaxTextureSize);
GR_GL_GetIntegerv(gl, GR_GL_MAX_RENDERBUFFER_SIZE, &fMaxRenderTargetSize);
// Our render targets are always created with textures as the color
// attachment, hence this min:
fMaxRenderTargetSize = GrMin(fMaxTextureSize, fMaxRenderTargetSize);
fMinRenderTargetHeight = gl->fMinRenderTargetHeight;
if (fMinRenderTargetHeight == kProbe_GrGLCapability) {
fMinRenderTargetHeight =
probe_for_min_render_target_height(gl,fNPOTRenderTargetSupport,
fMaxRenderTargetSize);
}
fMinRenderTargetWidth = gl->fMinRenderTargetWidth;
if (fMinRenderTargetWidth == kProbe_GrGLCapability) {
fMinRenderTargetWidth =
probe_for_min_render_target_width(gl, fNPOTRenderTargetSupport,
fMaxRenderTargetSize);
}
this->initCaps();
fLastSuccessfulStencilFmtIdx = 0;
}
@ -549,7 +315,255 @@ GrGpuGL::~GrGpuGL() {
fGL->unref();
}
///////////////////////////////////////////////////////////////////////////////
static const GrGLuint kUnknownBitCount = ~0;
void GrGpuGL::initCaps() {
GrGLint maxTextureUnits;
// check FS and fixed-function texture unit limits
// we only use textures in the fragment stage currently.
// checks are > to make sure we have a spare unit.
if (kES1_GrGLBinding != this->glBinding()) {
GR_GL_GetIntegerv(fGL, GR_GL_MAX_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
GrAssert(maxTextureUnits > kNumStages);
}
if (kES2_GrGLBinding != this->glBinding()) {
GR_GL_GetIntegerv(fGL, GR_GL_MAX_TEXTURE_UNITS, &maxTextureUnits);
GrAssert(maxTextureUnits > kNumStages);
}
if (kES2_GrGLBinding == this->glBinding()) {
GR_GL_GetIntegerv(fGL, GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS,
&fGLCaps.fMaxFragmentUniformVectors);
} else if (kDesktop_GrGLBinding != this->glBinding()) {
GrGLint max;
GR_GL_GetIntegerv(fGL, GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &max);
fGLCaps.fMaxFragmentUniformVectors = max / 4;
} else {
fGLCaps.fMaxFragmentUniformVectors = 16;
}
GrGLint numFormats;
GR_GL_GetIntegerv(fGL, GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numFormats);
SkAutoSTMalloc<10, GrGLint> formats(numFormats);
GR_GL_GetIntegerv(fGL, GR_GL_COMPRESSED_TEXTURE_FORMATS, formats);
for (int i = 0; i < numFormats; ++i) {
if (formats[i] == GR_GL_PALETTE8_RGBA8) {
fCaps.f8BitPaletteSupport = true;
break;
}
}
if (kDesktop_GrGLBinding == this->glBinding()) {
fCaps.fStencilWrapOpsSupport = (fGLVersion >= GR_GL_VER(1,4)) ||
this->hasExtension("GL_EXT_stencil_wrap");
} else {
fCaps.fStencilWrapOpsSupport = (fGLVersion >= GR_GL_VER(2,0)) ||
this->hasExtension("GL_OES_stencil_wrap");
}
if (kDesktop_GrGLBinding == this->glBinding()) {
// we could also look for GL_ATI_separate_stencil extension or
// GL_EXT_stencil_two_side but they use different function signatures
// than GL2.0+ (and than each other).
fCaps.fTwoSidedStencilSupport = (fGLVersion >= GR_GL_VER(2,0));
// supported on GL 1.4 and higher or by extension
fCaps.fStencilWrapOpsSupport = (fGLVersion >= GR_GL_VER(1,4)) ||
this->hasExtension("GL_EXT_stencil_wrap");
} else {
// ES 2 has two sided stencil but 1.1 doesn't. There doesn't seem to be
// an ES1 extension.
fCaps.fTwoSidedStencilSupport = (fGLVersion >= GR_GL_VER(2,0));
// stencil wrap support is in ES2, ES1 requires extension.
fCaps.fStencilWrapOpsSupport = (fGLVersion >= GR_GL_VER(2,0)) ||
this->hasExtension("GL_OES_stencil_wrap");
}
if (kDesktop_GrGLBinding == this->glBinding()) {
fGLCaps.fRGBA8Renderbuffer = true;
} else {
fGLCaps.fRGBA8Renderbuffer = this->hasExtension("GL_OES_rgb8_rgba8");
}
if (kDesktop_GrGLBinding != this->glBinding()) {
if (GR_GL_32BPP_COLOR_FORMAT == GR_GL_BGRA) {
GrAssert(this->hasExtension("GL_EXT_texture_format_BGRA8888"));
}
}
if (kDesktop_GrGLBinding == this->glBinding()) {
fCaps.fBufferLockSupport = true; // we require VBO support and the desktop VBO
// extension includes glMapBuffer.
} else {
fCaps.fBufferLockSupport = this->hasExtension("GL_OES_mapbuffer");
}
if (kDesktop_GrGLBinding == this->glBinding()) {
if (fGLVersion >= GR_GL_VER(2,0) ||
this->hasExtension("GL_ARB_texture_non_power_of_two")) {
fCaps.fNPOTTextureTileSupport = true;
fCaps.fNPOTTextureSupport = true;
} else {
fCaps.fNPOTTextureTileSupport = false;
fCaps.fNPOTTextureSupport = false;
}
} else {
if (fGLVersion >= GR_GL_VER(2,0)) {
fCaps.fNPOTTextureSupport = true;
fCaps.fNPOTTextureTileSupport = this->hasExtension("GL_OES_texture_npot");
} else {
fCaps.fNPOTTextureSupport =
this->hasExtension("GL_APPLE_texture_2D_limited_npot");
fCaps.fNPOTTextureTileSupport = false;
}
}
fCaps.fHWAALineSupport = (kDesktop_GrGLBinding == this->glBinding());
////////////////////////////////////////////////////////////////////////////
// Experiments to determine limitations that can't be queried.
// TODO: Make these a preprocess that generate some compile time constants.
// TODO: probe once at startup, rather than once per context creation.
int expectNPOTTargets = fGL->fNPOTRenderTargetSupport;
if (expectNPOTTargets == kProbe_GrGLCapability) {
fCaps.fNPOTRenderTargetSupport =
probe_for_npot_render_target_support(fGL, fCaps.fNPOTTextureSupport);
} else {
GrAssert(expectNPOTTargets == 0 || expectNPOTTargets == 1);
fCaps.fNPOTRenderTargetSupport = static_cast<bool>(expectNPOTTargets);
}
GR_GL_GetIntegerv(fGL, GR_GL_MAX_TEXTURE_SIZE, &fCaps.fMaxTextureSize);
GR_GL_GetIntegerv(fGL, GR_GL_MAX_RENDERBUFFER_SIZE, &fCaps.fMaxRenderTargetSize);
// Our render targets are always created with textures as the color
// attachment, hence this min:
fCaps.fMaxRenderTargetSize = GrMin(fCaps.fMaxTextureSize, fCaps.fMaxRenderTargetSize);
fCaps.fMinRenderTargetHeight = fGL->fMinRenderTargetHeight;
if (fCaps.fMinRenderTargetHeight == kProbe_GrGLCapability) {
fCaps.fMinRenderTargetHeight =
probe_for_min_render_target_height(fGL, fCaps.fNPOTRenderTargetSupport,
fCaps.fMaxRenderTargetSize);
}
fCaps.fMinRenderTargetWidth = fGL->fMinRenderTargetWidth;
if (fCaps.fMinRenderTargetWidth == kProbe_GrGLCapability) {
fCaps.fMinRenderTargetWidth =
probe_for_min_render_target_width(fGL, fCaps.fNPOTRenderTargetSupport,
fCaps.fMaxRenderTargetSize);
}
this->initFSAASupport();
this->initStencilFormats();
}
void GrGpuGL::initFSAASupport() {
// TODO: Get rid of GrAALevel and use # samples directly.
GR_STATIC_ASSERT(0 == kNone_GrAALevel);
GR_STATIC_ASSERT(1 == kLow_GrAALevel);
GR_STATIC_ASSERT(2 == kMed_GrAALevel);
GR_STATIC_ASSERT(3 == kHigh_GrAALevel);
memset(fGLCaps.fAASamples, 0, sizeof(fGLCaps.fAASamples));
fGLCaps.fMSFBOType = GLCaps::kNone_MSFBO;
if (kDesktop_GrGLBinding != this->glBinding()) {
if (this->hasExtension("GL_CHROMIUM_framebuffer_multisample")) {
// chrome's extension is equivalent to the EXT msaa
// and fbo_blit extensions.
fGLCaps.fMSFBOType = GLCaps::kDesktopEXT_MSFBO;
} else if (this->hasExtension("GL_APPLE_framebuffer_multisample")) {
fGLCaps.fMSFBOType = GLCaps::kAppleES_MSFBO;
}
} else {
if ((fGLVersion >= GR_GL_VER(3,0)) || this->hasExtension("GL_ARB_framebuffer_object")) {
fGLCaps.fMSFBOType = GLCaps::kDesktopARB_MSFBO;
} else if (this->hasExtension("GL_EXT_framebuffer_multisample") &&
this->hasExtension("GL_EXT_framebuffer_blit")) {
fGLCaps.fMSFBOType = GLCaps::kDesktopEXT_MSFBO;
}
}
if (GLCaps::kNone_MSFBO != fGLCaps.fMSFBOType) {
GrGLint maxSamples;
GR_GL_GetIntegerv(fGL, GR_GL_MAX_SAMPLES, &maxSamples);
if (maxSamples > 1 ) {
fGLCaps.fAASamples[kNone_GrAALevel] = 0;
fGLCaps.fAASamples[kLow_GrAALevel] =
GrMax(2, GrFixedFloorToInt((GR_FixedHalf) * maxSamples));
fGLCaps.fAASamples[kMed_GrAALevel] =
GrMax(2, GrFixedFloorToInt(((GR_Fixed1*3)/4) * maxSamples));
fGLCaps.fAASamples[kHigh_GrAALevel] = maxSamples;
}
}
fCaps.fFSAASupport = fGLCaps.fAASamples[kHigh_GrAALevel] > 0;
}
void GrGpuGL::initStencilFormats() {
// Build up list of legal stencil formats (though perhaps not supported on
// the particular gpu/driver) from most preferred to least.
// these consts are in order of most preferred to least preferred
// we don't bother with GL_STENCIL_INDEX1 or GL_DEPTH32F_STENCIL8
static const GrGLStencilBuffer::Format
// internal Format stencil bits total bits packed?
gS8 = {GR_GL_STENCIL_INDEX8, 8, 8, false},
gS16 = {GR_GL_STENCIL_INDEX16, 16, 16, false},
gD24S8 = {GR_GL_DEPTH24_STENCIL8, 8, 32, true },
gS4 = {GR_GL_STENCIL_INDEX4, 4, 4, false},
gS = {GR_GL_STENCIL_INDEX, kUnknownBitCount, kUnknownBitCount, false},
gDS = {GR_GL_DEPTH_STENCIL, kUnknownBitCount, kUnknownBitCount, true };
if (kDesktop_GrGLBinding == this->glBinding()) {
bool supportsPackedDS = fGLVersion >= GR_GL_VER(3,0) ||
this->hasExtension("GL_EXT_packed_depth_stencil") ||
this->hasExtension("GL_ARB_framebuffer_object");
// S1 thru S16 formats are in GL 3.0+, EXT_FBO, and ARB_FBO since we
// require FBO support we can expect these are legal formats and don't
// check. These also all support the unsized GL_STENCIL_INDEX.
fGLCaps.fStencilFormats.push_back() = gS8;
fGLCaps.fStencilFormats.push_back() = gS16;
if (supportsPackedDS) {
fGLCaps.fStencilFormats.push_back() = gD24S8;
}
fGLCaps.fStencilFormats.push_back() = gS4;
if (supportsPackedDS) {
fGLCaps.fStencilFormats.push_back() = gDS;
}
} else {
// ES2 has STENCIL_INDEX8 without extensions.
// ES1 with GL_OES_framebuffer_object (which we require for ES1)
// introduces tokens for S1 thu S8 but there are separate extensions
// that make them legal (GL_OES_stencil1, ...).
// GL_OES_packed_depth_stencil adds DEPTH24_STENCIL8
// ES doesn't support using the unsized formats.
if (fGLVersion >= GR_GL_VER(2,0) ||
this->hasExtension("GL_OES_stencil8")) {
fGLCaps.fStencilFormats.push_back() = gS8;
}
//fStencilFormats.push_back() = gS16;
if (this->hasExtension("GL_OES_packed_depth_stencil")) {
fGLCaps.fStencilFormats.push_back() = gD24S8;
}
if (this->hasExtension("GL_OES_stencil4")) {
fGLCaps.fStencilFormats.push_back() = gS4;
}
// we require some stencil format.
GrAssert(fGLCaps.fStencilFormats.count() > 0);
}
}
void GrGpuGL::resetContext() {
if (gPrintStartupSpew && !fPrintedCaps) {
fPrintedCaps = true;
this->getCaps().print();
fGLCaps.print();
}
// We detect cases when blending is effectively off
fHWBlendDisabled = false;
GL_CALL(Enable(GR_GL_BLEND));
@ -698,66 +712,6 @@ GrResource* GrGpuGL::onCreatePlatformSurface(const GrPlatformSurfaceDesc& desc)
}
}
///////////////////////////////////////////////////////////////////////////////
static const GrGLuint kUnknownBitCount = ~0;
void GrGpuGL::setupStencilFormats() {
// Build up list of legal stencil formats (though perhaps not supported on
// the particular gpu/driver) from most preferred to least.
// these consts are in order of most preferred to least preferred
// we don't bother with GL_STENCIL_INDEX1 or GL_DEPTH32F_STENCIL8
static const GrGLStencilBuffer::Format
// internal Format stencil bits total bits packed?
gS8 = {GR_GL_STENCIL_INDEX8, 8, 8, false},
gS16 = {GR_GL_STENCIL_INDEX16, 16, 16, false},
gD24S8 = {GR_GL_DEPTH24_STENCIL8, 8, 32, true },
gS4 = {GR_GL_STENCIL_INDEX4, 4, 4, false},
gS = {GR_GL_STENCIL_INDEX, kUnknownBitCount, kUnknownBitCount, false},
gDS = {GR_GL_DEPTH_STENCIL, kUnknownBitCount, kUnknownBitCount, true };
if (kDesktop_GrGLBinding == this->glBinding()) {
bool supportsPackedDS = fGLVersion >= GR_GL_VER(3,0) ||
this->hasExtension("GL_EXT_packed_depth_stencil") ||
this->hasExtension("GL_ARB_framebuffer_object");
// S1 thru S16 formats are in GL 3.0+, EXT_FBO, and ARB_FBO since we
// require FBO support we can expect these are legal formats and don't
// check. These also all support the unsized GL_STENCIL_INDEX.
fStencilFormats.push_back() = gS8;
fStencilFormats.push_back() = gS16;
if (supportsPackedDS) {
fStencilFormats.push_back() = gD24S8;
}
fStencilFormats.push_back() = gS4;
if (supportsPackedDS) {
fStencilFormats.push_back() = gDS;
}
} else {
// ES2 has STENCIL_INDEX8 without extensions.
// ES1 with GL_OES_framebuffer_object (which we require for ES1)
// introduces tokens for S1 thu S8 but there are separate extensions
// that make them legal (GL_OES_stencil1, ...).
// GL_OES_packed_depth_stencil adds DEPTH24_STENCIL8
// ES doesn't support using the unsized formats.
if (fGLVersion >= GR_GL_VER(2,0) ||
this->hasExtension("GL_OES_stencil8")) {
fStencilFormats.push_back() = gS8;
}
//fStencilFormats.push_back() = gS16;
if (this->hasExtension("GL_OES_packed_depth_stencil")) {
fStencilFormats.push_back() = gD24S8;
}
if (this->hasExtension("GL_OES_stencil4")) {
fStencilFormats.push_back() = gS4;
}
// we require some stencil format.
GrAssert(fStencilFormats.count() > 0);
}
}
////////////////////////////////////////////////////////////////////////////////
@ -812,7 +766,7 @@ void GrGpuGL::allocateAndUploadTexData(const GrGLTexture::Desc& desc,
GL_CALL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, desc.fUploadByteCount));
if (kIndex_8_GrPixelConfig == desc.fFormat &&
supports8BitPalette()) {
this->getCaps().f8BitPaletteSupport) {
// ES only supports CompressedTexImage2D, not CompressedTexSubimage2D
GrAssert(desc.fContentWidth == desc.fAllocWidth);
GrAssert(desc.fContentHeight == desc.fAllocHeight);
@ -920,7 +874,7 @@ bool GrGpuGL::createRenderTargetObjects(int width, int height,
// If we are using multisampling we will create two FBOS. We render
// to one and then resolve to the texture bound to the other.
if (desc->fSampleCnt > 1 && kNone_MSFBO != fMSFBOType) {
if (desc->fSampleCnt > 1 && GLCaps::kNone_MSFBO != fGLCaps.fMSFBOType) {
GL_CALL(GenFramebuffers(1, &desc->fRTFBOID));
GL_CALL(GenRenderbuffers(1, &desc->fMSColorRenderbufferID));
if (!desc->fRTFBOID ||
@ -1032,39 +986,42 @@ GrTexture* GrGpuGL::onCreateTexture(const GrTextureDesc& desc,
return return_null_texture();
}
const Caps& caps = this->getCaps();
// We keep GrRenderTargets in GL's normal orientation so that they
// can be drawn to by the outside world without the client having
// to render upside down.
glTexDesc.fOrientation = renderTarget ? GrGLTexture::kBottomUp_Orientation :
GrGLTexture::kTopDown_Orientation;
GrAssert(as_size_t(desc.fAALevel) < GR_ARRAY_COUNT(fAASamples));
glRTDesc.fSampleCnt = fAASamples[desc.fAALevel];
if (kNone_MSFBO == fMSFBOType && desc.fAALevel != kNone_GrAALevel) {
GrAssert(as_size_t(desc.fAALevel) < GR_ARRAY_COUNT(fGLCaps.fAASamples));
glRTDesc.fSampleCnt = fGLCaps.fAASamples[desc.fAALevel];
if (GLCaps::kNone_MSFBO == fGLCaps.fMSFBOType &&
desc.fAALevel != kNone_GrAALevel) {
GrPrintf("AA RT requested but not supported on this platform.");
}
glTexDesc.fUploadByteCount = GrBytesPerPixel(desc.fFormat);
if (renderTarget) {
if (!this->npotRenderTargetSupport()) {
if (!caps.fNPOTRenderTargetSupport) {
glTexDesc.fAllocWidth = GrNextPow2(desc.fWidth);
glTexDesc.fAllocHeight = GrNextPow2(desc.fHeight);
}
glTexDesc.fAllocWidth = GrMax(fMinRenderTargetWidth,
glTexDesc.fAllocWidth = GrMax(caps.fMinRenderTargetWidth,
glTexDesc.fAllocWidth);
glTexDesc.fAllocHeight = GrMax(fMinRenderTargetHeight,
glTexDesc.fAllocHeight = GrMax(caps.fMinRenderTargetHeight,
glTexDesc.fAllocHeight);
if (glTexDesc.fAllocWidth > fMaxRenderTargetSize ||
glTexDesc.fAllocHeight > fMaxRenderTargetSize) {
if (glTexDesc.fAllocWidth > caps.fMaxRenderTargetSize ||
glTexDesc.fAllocHeight > caps.fMaxRenderTargetSize) {
return return_null_texture();
}
} else if (!this->npotTextureSupport()) {
} else if (!caps.fNPOTTextureSupport) {
glTexDesc.fAllocWidth = GrNextPow2(desc.fWidth);
glTexDesc.fAllocHeight = GrNextPow2(desc.fHeight);
if (glTexDesc.fAllocWidth > fMaxTextureSize ||
glTexDesc.fAllocHeight > fMaxTextureSize) {
if (glTexDesc.fAllocWidth > caps.fMaxTextureSize ||
glTexDesc.fAllocHeight > caps.fMaxTextureSize) {
return return_null_texture();
}
}
@ -1156,13 +1113,14 @@ bool GrGpuGL::createStencilBufferForRenderTarget(GrRenderTarget* rt,
GrGLStencilBuffer* sb = NULL;
int stencilFmtCnt = fStencilFormats.count();
int stencilFmtCnt = fGLCaps.fStencilFormats.count();
for (int i = 0; i < stencilFmtCnt; ++i) {
GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, sbID));
// we start with the last stencil format that succeeded in hopes
// that we won't go through this loop more than once after the
// first (painful) stencil creation.
int sIdx = (i + fLastSuccessfulStencilFmtIdx) % stencilFmtCnt;
const GrGLStencilBuffer::Format& sFmt = fGLCaps.fStencilFormats[sIdx];
// we do this "if" so that we don't call the multisample
// version on a GL that doesn't have an MSAA extension.
if (samples > 1) {
@ -1170,21 +1128,21 @@ bool GrGpuGL::createStencilBufferForRenderTarget(GrRenderTarget* rt,
RenderbufferStorageMultisample(
GR_GL_RENDERBUFFER,
samples,
fStencilFormats[sIdx].fInternalFormat,
sFmt.fInternalFormat,
width,
height));
} else {
GR_GL_CALL_NOERRCHECK(this->glInterface(),
RenderbufferStorage(GR_GL_RENDERBUFFER,
fStencilFormats[sIdx].fInternalFormat,
width, height));
sFmt.fInternalFormat,
width, height));
}
GrGLenum err = GR_GL_GET_ERROR(this->glInterface());
if (err == GR_GL_NO_ERROR) {
// After sized formats we attempt an unsized format and take whatever
// sizes GL gives us. In that case we query for the size.
GrGLStencilBuffer::Format format = fStencilFormats[sIdx];
GrGLStencilBuffer::Format format = sFmt;
get_stencil_rb_sizes(this->glInterface(), sbID, &format);
sb = new GrGLStencilBuffer(this, sbID, width, height,
samples, format);
@ -1606,7 +1564,7 @@ void GrGpuGL::onGpuDrawNonIndexed(GrPrimitiveType type,
void GrGpuGL::resolveRenderTarget(GrGLRenderTarget* rt) {
if (rt->needsResolve()) {
GrAssert(kNone_MSFBO != fMSFBOType);
GrAssert(GLCaps::kNone_MSFBO != fGLCaps.fMSFBOType);
GrAssert(rt->textureFBOID() != rt->renderFBOID());
GL_CALL(BindFramebuffer(GR_GL_READ_FRAMEBUFFER,
rt->renderFBOID()));
@ -1624,7 +1582,7 @@ void GrGpuGL::resolveRenderTarget(GrGLRenderTarget* rt) {
r.setRelativeTo(vp, dirtyRect.fLeft, dirtyRect.fTop,
dirtyRect.width(), dirtyRect.height());
if (kAppleES_MSFBO == fMSFBOType) {
if (GLCaps::kAppleES_MSFBO == fGLCaps.fMSFBOType) {
// Apple's extension uses the scissor as the blit bounds.
GL_CALL(Enable(GR_GL_SCISSOR_TEST));
GL_CALL(Scissor(r.fLeft, r.fBottom,
@ -1633,10 +1591,10 @@ void GrGpuGL::resolveRenderTarget(GrGLRenderTarget* rt) {
fHWBounds.fScissorRect.invalidate();
fHWBounds.fScissorEnabled = true;
} else {
if (kDesktopARB_MSFBO != fMSFBOType) {
if (GLCaps::kDesktopARB_MSFBO != fGLCaps.fMSFBOType) {
// this respects the scissor during the blit, so disable it.
GrAssert(kDesktopEXT_MSFBO == fMSFBOType);
flushScissor(NULL);
GrAssert(GLCaps::kDesktopEXT_MSFBO == fGLCaps.fMSFBOType);
this->flushScissor(NULL);
}
int right = r.fLeft + r.fWidth;
int top = r.fBottom + r.fHeight;
@ -1716,7 +1674,7 @@ void GrGpuGL::flushStencil() {
} else {
GL_CALL(Enable(GR_GL_STENCIL_TEST));
#if GR_DEBUG
if (!fStencilWrapOpsSupport) {
if (!this->getCaps().fStencilWrapOpsSupport) {
GrAssert(settings->fFrontPassOp != kIncWrap_StencilOp);
GrAssert(settings->fFrontPassOp != kDecWrap_StencilOp);
GrAssert(settings->fFrontFailOp != kIncWrap_StencilOp);
@ -1768,7 +1726,7 @@ void GrGpuGL::flushStencil() {
(unsigned) settings->fBackFailOp < GR_ARRAY_COUNT(grToGLStencilOp));
GrAssert(settings->fBackPassOp >= 0 &&
(unsigned) settings->fBackPassOp < GR_ARRAY_COUNT(grToGLStencilOp));
if (fTwoSidedStencilSupport) {
if (this->getCaps().fTwoSidedStencilSupport) {
GrGLenum backFunc;
unsigned int backRef = settings->fBackFuncRef;
@ -2133,7 +2091,7 @@ bool GrGpuGL::canBeTexture(GrPixelConfig config,
*type = GR_GL_UNSIGNED_SHORT_4_4_4_4;
break;
case kIndex_8_GrPixelConfig:
if (this->supports8BitPalette()) {
if (this->getCaps().f8BitPaletteSupport) {
*format = GR_GL_PALETTE8_RGBA8;
*internalFormat = GR_GL_PALETTE8_RGBA8;
*type = GR_GL_UNSIGNED_BYTE; // unused I think
@ -2177,7 +2135,7 @@ bool GrGpuGL::fboInternalFormat(GrPixelConfig config, GrGLenum* format) {
switch (config) {
case kRGBA_8888_GrPixelConfig:
case kRGBX_8888_GrPixelConfig:
if (fRGBA8Renderbuffer) {
if (fGLCaps.fRGBA8Renderbuffer) {
*format = GR_GL_RGBA8;
return true;
} else {
@ -2267,6 +2225,32 @@ void GrGpuGL::setBuffers(bool indexed,
int GrGpuGL::getMaxEdges() const {
// FIXME: This is a pessimistic estimate based on how many other things
// want to add uniforms. This should be centralized somewhere.
return GR_CT_MIN(fMaxFragmentUniformVectors - 8, kMaxEdges);
return GR_CT_MIN(fGLCaps.fMaxFragmentUniformVectors - 8, kMaxEdges);
}
void GrGpuGL::GLCaps::print() const {
for (int i = 0; i < fStencilFormats.count(); ++i) {
GrPrintf("Stencil Format %d, stencil bits: %02d, total bits: %02d\n",
i,
fStencilFormats[i].fStencilBits,
fStencilFormats[i].fTotalBits);
}
GR_STATIC_ASSERT(0 == kNone_MSFBO);
GR_STATIC_ASSERT(1 == kDesktopARB_MSFBO);
GR_STATIC_ASSERT(2 == kDesktopEXT_MSFBO);
GR_STATIC_ASSERT(3 == kAppleES_MSFBO);
static const char* gMSFBOExtStr[] = {
"None",
"ARB",
"EXT",
"Apple",
};
GrPrintf("MSAA Type: %s\n", gMSFBOExtStr[fMSFBOType]);
for (int i = 0; i < GR_ARRAY_COUNT(fAASamples); ++i) {
GrPrintf("AA Level %d has %d samples\n", i, fAASamples[i]);
}
GrPrintf("Max FS Uniform Vectors: %d\n", fMaxFragmentUniformVectors);
GrPrintf("Support RGBA8 Render Buffer: %s\n",
(fRGBA8Renderbuffer ? "YES": "NO"));
}

64
gpu/src/GrGpuGL.h
View File

@ -146,9 +146,14 @@ protected:
static bool BlendCoeffReferencesConstant(GrBlendCoeff coeff);
private:
// Inits GrDrawTarget::Caps and GLCaps, sublcass may enable
// additional caps.
void initCaps();
void initFSAASupport();
// determines valid stencil formats
void setupStencilFormats();
void initStencilFormats();
// notify callbacks to update state tracking when related
// objects are bound to GL or deleted outside of the class
@ -194,7 +199,43 @@ private:
SkString fExtensionString;
GrGLVersion fGLVersion;
SkTArray<GrGLStencilBuffer::Format, true> fStencilFormats;
struct GLCaps {
// prealloc space for 8 stencil formats
GLCaps() : fStencilFormats(8) {}
SkTArray<GrGLStencilBuffer::Format, true> fStencilFormats;
enum {
/**
* no support for MSAA FBOs
*/
kNone_MSFBO = 0,
/**
* GL3.0-style MSAA FBO (GL_ARB_framebuffer_object)
*/
kDesktopARB_MSFBO,
/**
* earlier GL_EXT_framebuffer* extensions
*/
kDesktopEXT_MSFBO,
/**
* GL_APPLE_framebuffer_multisample ES extension
*/
kAppleES_MSFBO,
} fMSFBOType;
// TODO: get rid of GrAALevel and use sample cnt directly
GrGLuint fAASamples[4];
// The maximum number of fragment uniform vectors (GLES has min. 16).
int fMaxFragmentUniformVectors;
// ES requires an extension to support RGBA8 in RenderBufferStorage
bool fRGBA8Renderbuffer;
void print() const;
} fGLCaps;
// we want to clear stencil buffers when they are created. We want to clear
// the entire buffer even if it is larger than the color attachment. We
// attach it to this fbo with no color attachment to do the initial clear.
@ -202,23 +243,6 @@ private:
bool fHWBlendDisabled;
GrGLuint fAASamples[4];
enum {
kNone_MSFBO = 0, //<! no support for MSAA FBOs
kDesktopARB_MSFBO,//<! GL3.0-style MSAA FBO (GL_ARB_framebuffer_object)
kDesktopEXT_MSFBO,//<! earlier GL_EXT_framebuffer* extensions
kAppleES_MSFBO, //<! GL_APPLE_framebuffer_multisample ES extension
} fMSFBOType;
// Do we have stencil wrap ops.
bool fHasStencilWrap;
// The maximum number of fragment uniform vectors (GLES has min. 16).
int fMaxFragmentUniformVectors;
// ES requires an extension to support RGBA8 in RenderBufferStorage
bool fRGBA8Renderbuffer;
int fActiveTextureUnitIdx;
// we record what stencil format worked last time to hopefully exit early
@ -228,6 +252,8 @@ private:
const GrGLInterface* fGL;
GrGLBinding fGLBinding;
bool fPrintedCaps;
typedef GrGpu INHERITED;
};

3
gpu/src/GrGpuGLFixed.cpp
View File

@ -62,9 +62,6 @@ GrGLBinding get_binding_in_use(const GrGLInterface* gl) {
GrGpuGLFixed::GrGpuGLFixed(const GrGLInterface* gl)
: GrGpuGL(gl, get_binding_in_use(gl)) {
fShaderSupport = false;
fShaderDerivativeSupport = false;
fDualSourceBlendingSupport = false;
}
GrGpuGLFixed::~GrGpuGLFixed() {

16
gpu/src/GrGpuGLShaders.cpp
View File

@ -213,7 +213,7 @@ bool GrGpuGLShaders::programUnitTest() {
bool vertexEdgeAA = random.nextF() > .5f;
if (vertexEdgeAA) {
pdesc.fVertexLayout |= GrDrawTarget::kEdge_VertexLayoutBit;
if (this->supportsShaderDerivatives()) {
if (this->getCaps().fShaderDerivativeSupport) {
pdesc.fVertexEdgeType = random.nextF() > 0.5f ?
kHairQuad_EdgeType :
kHairLine_EdgeType;
@ -229,7 +229,7 @@ bool GrGpuGLShaders::programUnitTest() {
pdesc.fEdgeAANumEdges = 0;
}
if (fDualSourceBlendingSupport) {
if (this->getCaps().fDualSourceBlendingSupport) {
pdesc.fDualSrcOutput =
(ProgramDesc::DualSrcOutput)
(int)(random.nextF() * ProgramDesc::kDualSrcOutputCnt);
@ -290,15 +290,15 @@ GrGLBinding get_binding_in_use(const GrGLInterface* gl) {
GrGpuGLShaders::GrGpuGLShaders(const GrGLInterface* gl)
: GrGpuGL(gl, get_binding_in_use(gl)) {
fShaderSupport = true;
fCaps.fShaderSupport = true;
if (kDesktop_GrGLBinding == this->glBinding()) {
fDualSourceBlendingSupport =
fCaps.fDualSourceBlendingSupport =
this->glVersion() >= GR_GL_VER(3,3) ||
this->hasExtension("GL_ARB_blend_func_extended");
fShaderDerivativeSupport = true;
fCaps.fShaderDerivativeSupport = true;
} else {
fDualSourceBlendingSupport = false;
fShaderDerivativeSupport =
fCaps.fDualSourceBlendingSupport = false;
fCaps.fShaderDerivativeSupport =
this->hasExtension("GL_OES_standard_derivatives");
}
@ -937,7 +937,7 @@ void GrGpuGLShaders::buildProgram(GrPrimitiveType type) {
// (e.g. solid draw, and dst coeff is kZero. It's correct to make
// the dst coeff be kISA. Or solid draw with kSA can be tweaked to be
// kOne).
if (fDualSourceBlendingSupport) {
if (this->getCaps().fDualSourceBlendingSupport) {
if (kZero_BlendCoeff == fCurrDrawState.fDstBlend) {
// write the coverage value to second color
desc.fDualSrcOutput = ProgramDesc::kCoverage_DualSrcOutput;

12
gpu/src/GrInOrderDrawBuffer.cpp
View File

@ -18,8 +18,7 @@
GrInOrderDrawBuffer::GrInOrderDrawBuffer(const GrGpu* gpu,
GrVertexBufferAllocPool* vertexPool,
GrIndexBufferAllocPool* indexPool)
: fGpu(gpu)
, fDraws(&fDrawStorage)
: fDraws(&fDrawStorage)
, fStates(&fStateStorage)
, fClears(&fClearStorage)
, fClips(&fClipStorage)
@ -33,12 +32,12 @@ GrInOrderDrawBuffer::GrInOrderDrawBuffer(const GrGpu* gpu,
, fVertexPool(*vertexPool)
, fIndexPool(*indexPool)
, fGeoPoolStateStack(&fGeoStackStorage) {
fCaps = gpu->getCaps();
GrAssert(NULL != vertexPool);
GrAssert(NULL != indexPool);
gpu->ref();
GeometryPoolState& poolState = fGeoPoolStateStack.push_back();
poolState.fUsedPoolVertexBytes = 0;
poolState.fUsedPoolIndexBytes = 0;
@ -53,7 +52,6 @@ GrInOrderDrawBuffer::GrInOrderDrawBuffer(const GrGpu* gpu,
GrInOrderDrawBuffer::~GrInOrderDrawBuffer() {
this->reset();
GrSafeUnref(fQuadIndexBuffer);
fGpu->unref();
}
void GrInOrderDrawBuffer::initializeDrawStateAndClip(const GrDrawTarget& target) {
@ -627,7 +625,7 @@ void GrInOrderDrawBuffer::clipWillBeSet(const GrClip& newClip) {
}
bool GrInOrderDrawBuffer::willUseHWAALines() const {
return fGpu->supportsHWAALines() &&
return this->getCaps().fHWAALineSupport &&
CanUseHWAALines(this->getGeomSrc().fVertexLayout, fCurrDrawState);
}

6
gpu/src/GrPathRendererChain.cpp
View File

@ -57,9 +57,9 @@ GrPathRenderer* GrPathRendererChain::getPathRenderer(const GrDrawTarget* target,
void GrPathRendererChain::init() {
GrAssert(!fInit);
GrGpu* gpu = fOwner->getGpu();
this->addPathRenderer(
new GrDefaultPathRenderer(gpu->supportsTwoSidedStencil(),
gpu->supportsStencilWrapOps()))->unref();
bool twoSided = gpu->getCaps().fTwoSidedStencilSupport;
bool wrapOp = gpu->getCaps().fStencilWrapOpsSupport;
this->addPathRenderer(new GrDefaultPathRenderer(twoSided, wrapOp))->unref();
GrPathRenderer::AddPathRenderers(fOwner, fFlags, this);
fInit = true;
}