/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGLCaps.h"
#include "GrGLContext.h"
#include "SkTSearch.h"
#include "SkTSort.h"
GrGLCaps::GrGLCaps() {
this->reset();
}
void GrGLCaps::reset() {
INHERITED::reset();
fVerifiedColorConfigs.reset();
fStencilFormats.reset();
fStencilVerifiedColorConfigs.reset();
fMSFBOType = kNone_MSFBOType;
fFBFetchType = kNone_FBFetchType;
fMaxFragmentUniformVectors = 0;
fMaxVertexAttributes = 0;
fMaxFragmentTextureUnits = 0;
fMaxFixedFunctionTextureCoords = 0;
fRGBA8RenderbufferSupport = false;
fBGRAFormatSupport = false;
fBGRAIsInternalFormat = false;
fTextureSwizzleSupport = false;
fUnpackRowLengthSupport = false;
fUnpackFlipYSupport = false;
fPackRowLengthSupport = false;
fPackFlipYSupport = false;
fTextureUsageSupport = false;
fTexStorageSupport = false;
fTextureRedSupport = false;
fImagingSupport = false;
fTwoFormatLimit = false;
fFragCoordsConventionSupport = false;
fVertexArrayObjectSupport = false;
fUseNonVBOVertexAndIndexDynamicData = false;
fIsCoreProfile = false;
fFixedFunctionSupport = false;
fDiscardFBSupport = false;
fFullClearIsFree = false;
}
GrGLCaps::GrGLCaps(const GrGLCaps& caps) : GrDrawTargetCaps() {
*this = caps;
}
GrGLCaps& GrGLCaps::operator = (const GrGLCaps& caps) {
INHERITED::operator=(caps);
fVerifiedColorConfigs = caps.fVerifiedColorConfigs;
fStencilFormats = caps.fStencilFormats;
fStencilVerifiedColorConfigs = caps.fStencilVerifiedColorConfigs;
fMaxFragmentUniformVectors = caps.fMaxFragmentUniformVectors;
fMaxVertexAttributes = caps.fMaxVertexAttributes;
fMaxFragmentTextureUnits = caps.fMaxFragmentTextureUnits;
fMaxFixedFunctionTextureCoords = caps.fMaxFixedFunctionTextureCoords;
fMSFBOType = caps.fMSFBOType;
fFBFetchType = caps.fFBFetchType;
fRGBA8RenderbufferSupport = caps.fRGBA8RenderbufferSupport;
fBGRAFormatSupport = caps.fBGRAFormatSupport;
fBGRAIsInternalFormat = caps.fBGRAIsInternalFormat;
fTextureSwizzleSupport = caps.fTextureSwizzleSupport;
fUnpackRowLengthSupport = caps.fUnpackRowLengthSupport;
fUnpackFlipYSupport = caps.fUnpackFlipYSupport;
fPackRowLengthSupport = caps.fPackRowLengthSupport;
fPackFlipYSupport = caps.fPackFlipYSupport;
fTextureUsageSupport = caps.fTextureUsageSupport;
fTexStorageSupport = caps.fTexStorageSupport;
fTextureRedSupport = caps.fTextureRedSupport;
fImagingSupport = caps.fImagingSupport;
fTwoFormatLimit = caps.fTwoFormatLimit;
fFragCoordsConventionSupport = caps.fFragCoordsConventionSupport;
fVertexArrayObjectSupport = caps.fVertexArrayObjectSupport;
fUseNonVBOVertexAndIndexDynamicData = caps.fUseNonVBOVertexAndIndexDynamicData;
fIsCoreProfile = caps.fIsCoreProfile;
fFixedFunctionSupport = caps.fFixedFunctionSupport;
fDiscardFBSupport = caps.fDiscardFBSupport;
fFullClearIsFree = caps.fFullClearIsFree;
return *this;
}
void GrGLCaps::init(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) {
this->reset();
if (!ctxInfo.isInitialized()) {
return;
}
GrGLBinding binding = ctxInfo.binding();
GrGLVersion version = ctxInfo.version();
/**************************************************************************
* Caps specific to GrGLCaps
**************************************************************************/
if (kES_GrGLBinding == binding) {
GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS,
&fMaxFragmentUniformVectors);
} else {
SkASSERT(kDesktop_GrGLBinding == binding);
GrGLint max;
GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &max);
fMaxFragmentUniformVectors = max / 4;
if (version >= GR_GL_VER(3, 2)) {
GrGLint profileMask;
GR_GL_GetIntegerv(gli, GR_GL_CONTEXT_PROFILE_MASK, &profileMask);
fIsCoreProfile = SkToBool(profileMask & GR_GL_CONTEXT_CORE_PROFILE_BIT);
}
if (!fIsCoreProfile) {
fFixedFunctionSupport = true;
GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_COORDS, &fMaxFixedFunctionTextureCoords);
// Sanity check
SkASSERT(fMaxFixedFunctionTextureCoords > 0 && fMaxFixedFunctionTextureCoords < 128);
}
}
GR_GL_GetIntegerv(gli, GR_GL_MAX_VERTEX_ATTRIBS, &fMaxVertexAttributes);
GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_IMAGE_UNITS, &fMaxFragmentTextureUnits);
if (kDesktop_GrGLBinding == binding) {
fRGBA8RenderbufferSupport = true;
} else {
fRGBA8RenderbufferSupport = version >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_OES_rgb8_rgba8") ||
ctxInfo.hasExtension("GL_ARM_rgba8");
}
if (kDesktop_GrGLBinding == binding) {
fBGRAFormatSupport = version >= GR_GL_VER(1,2) ||
ctxInfo.hasExtension("GL_EXT_bgra");
} else {
if (ctxInfo.hasExtension("GL_APPLE_texture_format_BGRA8888")) {
fBGRAFormatSupport = true;
} else if (ctxInfo.hasExtension("GL_EXT_texture_format_BGRA8888")) {
fBGRAFormatSupport = true;
fBGRAIsInternalFormat = true;
}
SkASSERT(fBGRAFormatSupport ||
kSkia8888_GrPixelConfig != kBGRA_8888_GrPixelConfig);
}
if (kDesktop_GrGLBinding == binding) {
fTextureSwizzleSupport = version >= GR_GL_VER(3,3) ||
ctxInfo.hasExtension("GL_ARB_texture_swizzle");
} else {
fTextureSwizzleSupport = version >= GR_GL_VER(3,0);
}
if (kDesktop_GrGLBinding == binding) {
fUnpackRowLengthSupport = true;
fUnpackFlipYSupport = false;
fPackRowLengthSupport = true;
fPackFlipYSupport = false;
} else {
fUnpackRowLengthSupport = version >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_EXT_unpack_subimage");
fUnpackFlipYSupport = ctxInfo.hasExtension("GL_CHROMIUM_flipy");
fPackRowLengthSupport = version >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_NV_pack_subimage");
fPackFlipYSupport =
ctxInfo.hasExtension("GL_ANGLE_pack_reverse_row_order");
}
fTextureUsageSupport = (kES_GrGLBinding == binding) &&
ctxInfo.hasExtension("GL_ANGLE_texture_usage");
if (kDesktop_GrGLBinding == binding) {
// The EXT version can apply to either GL or GLES.
fTexStorageSupport = version >= GR_GL_VER(4,2) ||
ctxInfo.hasExtension("GL_ARB_texture_storage") ||
ctxInfo.hasExtension("GL_EXT_texture_storage");
} else {
// Qualcomm Adreno drivers appear to have issues with texture storage.
fTexStorageSupport = (version >= GR_GL_VER(3,0) &&
kQualcomm_GrGLVendor != ctxInfo.vendor()) ||
ctxInfo.hasExtension("GL_EXT_texture_storage");
}
// ARB_texture_rg is part of OpenGL 3.0, but mesa doesn't support it if
// it doesn't have ARB_texture_rg extension.
if (kDesktop_GrGLBinding == binding) {
if (ctxInfo.isMesa()) {
fTextureRedSupport = ctxInfo.hasExtension("GL_ARB_texture_rg");
} else {
fTextureRedSupport = version >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_ARB_texture_rg");
}
} else {
fTextureRedSupport = version >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_EXT_texture_rg");
}
fImagingSupport = kDesktop_GrGLBinding == binding &&
ctxInfo.hasExtension("GL_ARB_imaging");
// ES 2 only guarantees RGBA/uchar + one other format/type combo for
// ReadPixels. The other format has to checked at run-time since it
// can change based on which render target is bound
fTwoFormatLimit = kES_GrGLBinding == binding;
// Known issue on at least some Intel platforms:
// http://code.google.com/p/skia/issues/detail?id=946
if (kIntel_GrGLVendor != ctxInfo.vendor()) {
fFragCoordsConventionSupport = ctxInfo.glslGeneration() >= k150_GrGLSLGeneration ||
ctxInfo.hasExtension("GL_ARB_fragment_coord_conventions");
}
// SGX and Mali GPUs that are based on a tiled-deferred architecture that have trouble with
// frequently changing VBOs. We've measured a performance increase using non-VBO vertex
// data for dynamic content on these GPUs. Perhaps we should read the renderer string and
// limit this decision to specific GPU families rather than basing it on the vendor alone.
if (!GR_GL_MUST_USE_VBO &&
(kARM_GrGLVendor == ctxInfo.vendor() || kImagination_GrGLVendor == ctxInfo.vendor())) {
fUseNonVBOVertexAndIndexDynamicData = true;
}
fDiscardFBSupport = ctxInfo.hasExtension("GL_EXT_discard_framebuffer");
if (kARM_GrGLVendor == ctxInfo.vendor() || kImagination_GrGLVendor == ctxInfo.vendor()) {
fFullClearIsFree = true;
}
if (kDesktop_GrGLBinding == binding) {
fVertexArrayObjectSupport = version >= GR_GL_VER(3, 0) ||
ctxInfo.hasExtension("GL_ARB_vertex_array_object");
} else {
fVertexArrayObjectSupport = version >= GR_GL_VER(3, 0) ||
ctxInfo.hasExtension("GL_OES_vertex_array_object");
}
if (kES_GrGLBinding == binding) {
if (ctxInfo.hasExtension("GL_EXT_shader_framebuffer_fetch")) {
fFBFetchType = kEXT_FBFetchType;
} else if (ctxInfo.hasExtension("GL_NV_shader_framebuffer_fetch")) {
fFBFetchType = kNV_FBFetchType;
}
}
this->initFSAASupport(ctxInfo, gli);
this->initStencilFormats(ctxInfo);
/**************************************************************************
* GrDrawTargetCaps fields
**************************************************************************/
GrGLint numFormats;
GR_GL_GetIntegerv(gli, GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numFormats);
if (numFormats) {
SkAutoSTMalloc<10, GrGLint> formats(numFormats);
GR_GL_GetIntegerv(gli, GR_GL_COMPRESSED_TEXTURE_FORMATS, formats);
for (int i = 0; i < numFormats; ++i) {
if (formats[i] == GR_GL_PALETTE8_RGBA8) {
f8BitPaletteSupport = true;
break;
}
}
}
if (kDesktop_GrGLBinding == binding) {
// 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 = (ctxInfo.version() >= GR_GL_VER(2,0));
// supported on GL 1.4 and higher or by extension
fStencilWrapOpsSupport = (ctxInfo.version() >= GR_GL_VER(1,4)) ||
ctxInfo.hasExtension("GL_EXT_stencil_wrap");
} else {
// ES 2 has two sided stencil and stencil wrap
fTwoSidedStencilSupport = true;
fStencilWrapOpsSupport = true;
}
if (kDesktop_GrGLBinding == binding) {
fBufferLockSupport = true; // we require VBO support and the desktop VBO extension includes
// glMapBuffer.
} else {
fBufferLockSupport = ctxInfo.hasExtension("GL_OES_mapbuffer");
}
if (kDesktop_GrGLBinding == binding) {
if (ctxInfo.version() >= GR_GL_VER(2,0) ||
ctxInfo.hasExtension("GL_ARB_texture_non_power_of_two")) {
fNPOTTextureTileSupport = true;
} else {
fNPOTTextureTileSupport = false;
}
} else {
// Unextended ES2 supports NPOT textures with clamp_to_edge and non-mip filters only
// ES3 has no limitations.
fNPOTTextureTileSupport = ctxInfo.version() >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_OES_texture_npot");
}
fHWAALineSupport = (kDesktop_GrGLBinding == binding);
GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_SIZE, &fMaxTextureSize);
GR_GL_GetIntegerv(gli, 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);
fPathRenderingSupport = GR_GL_USE_NV_PATH_RENDERING &&
ctxInfo.hasExtension("GL_NV_path_rendering");
fDstReadInShaderSupport = kNone_FBFetchType != fFBFetchType;
// Disable scratch texture reuse on Mali and Adreno devices
fReuseScratchTextures = kARM_GrGLVendor != ctxInfo.vendor() &&
kQualcomm_GrGLVendor != ctxInfo.vendor();
// Enable supported shader-related caps
if (kDesktop_GrGLBinding == binding) {
fDualSourceBlendingSupport = ctxInfo.version() >= GR_GL_VER(3,3) ||
ctxInfo.hasExtension("GL_ARB_blend_func_extended");
fShaderDerivativeSupport = true;
// we don't support GL_ARB_geometry_shader4, just GL 3.2+ GS
fGeometryShaderSupport = ctxInfo.version() >= GR_GL_VER(3,2) &&
ctxInfo.glslGeneration() >= k150_GrGLSLGeneration;
} else {
fShaderDerivativeSupport = ctxInfo.hasExtension("GL_OES_standard_derivatives");
}
if (GrGLCaps::kES_IMG_MsToTexture_MSFBOType == fMSFBOType) {
GR_GL_GetIntegerv(gli, GR_GL_MAX_SAMPLES_IMG, &fMaxSampleCount);
} else if (GrGLCaps::kNone_MSFBOType != fMSFBOType) {
GR_GL_GetIntegerv(gli, GR_GL_MAX_SAMPLES, &fMaxSampleCount);
}
this->initConfigRenderableTable(ctxInfo);
}
void GrGLCaps::initConfigRenderableTable(const GrGLContextInfo& ctxInfo) {
// OpenGL < 3.0
// no support for render targets unless the GL_ARB_framebuffer_object
// extension is supported (in which case we get ALPHA, RED, RG, RGB,
// RGBA (ALPHA8, RGBA4, RGBA8) for OpenGL > 1.1). Note that we
// probably don't get R8 in this case.
// OpenGL 3.0
// base color renderable: ALPHA, RED, RG, RGB, and RGBA
// sized derivatives: ALPHA8, R8, RGBA4, RGBA8
// >= OpenGL 3.1
// base color renderable: RED, RG, RGB, and RGBA
// sized derivatives: R8, RGBA4, RGBA8
// if the GL_ARB_compatibility extension is supported then we get back
// support for GL_ALPHA and ALPHA8
// GL_EXT_bgra adds BGRA render targets to any version
// ES 2.0
// color renderable: RGBA4, RGB5_A1, RGB565
// GL_EXT_texture_rg adds support for R8 as a color render target
// GL_OES_rgb8_rgba8 and/or GL_ARM_rgba8 adds support for RGBA8
// GL_EXT_texture_format_BGRA8888 and/or GL_APPLE_texture_format_BGRA8888 added BGRA support
// ES 3.0
// Same as ES 2.0 except R8 and RGBA8 are supported without extensions (the functions called
// below already account for this).
enum {
kNo_MSAA = 0,
kYes_MSAA = 1,
};
if (kDesktop_GrGLBinding == ctxInfo.binding()) {
// Post 3.0 we will get R8
// Prior to 3.0 we will get ALPHA8 (with GL_ARB_framebuffer_object)
if (ctxInfo.version() >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_ARB_framebuffer_object")) {
fConfigRenderSupport[kAlpha_8_GrPixelConfig][kNo_MSAA] = true;
fConfigRenderSupport[kAlpha_8_GrPixelConfig][kYes_MSAA] = true;
}
} else {
// On ES we can only hope for R8
fConfigRenderSupport[kAlpha_8_GrPixelConfig][kNo_MSAA] = fTextureRedSupport;
fConfigRenderSupport[kAlpha_8_GrPixelConfig][kYes_MSAA] = fTextureRedSupport;
}
if (kDesktop_GrGLBinding != ctxInfo.binding()) {
// only available in ES
fConfigRenderSupport[kRGB_565_GrPixelConfig][kNo_MSAA] = true;
fConfigRenderSupport[kRGB_565_GrPixelConfig][kYes_MSAA] = true;
}
// we no longer support 444 as a render target
fConfigRenderSupport[kRGBA_4444_GrPixelConfig][kNo_MSAA] = false;
fConfigRenderSupport[kRGBA_4444_GrPixelConfig][kYes_MSAA] = false;
if (this->fRGBA8RenderbufferSupport) {
fConfigRenderSupport[kRGBA_8888_GrPixelConfig][kNo_MSAA] = true;
fConfigRenderSupport[kRGBA_8888_GrPixelConfig][kYes_MSAA] = true;
}
if (this->fBGRAFormatSupport) {
fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kNo_MSAA] = true;
// The GL_EXT_texture_format_BGRA8888 extension does not add BGRA to the list of
// configs that are color-renderable and can be passed to glRenderBufferStorageMultisample.
// Chromium may have an extension to allow BGRA renderbuffers to work on desktop platforms.
if (ctxInfo.extensions().has("GL_CHROMIUM_renderbuffer_format_BGRA8888")) {
fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kYes_MSAA] = true;
} else {
fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kYes_MSAA] =
!fBGRAIsInternalFormat || !this->usesMSAARenderBuffers();
}
}
// If we don't support MSAA then undo any places above where we set a config as renderable with
// msaa.
if (kNone_MSFBOType == fMSFBOType) {
for (int i = 0; i < kGrPixelConfigCnt; ++i) {
fConfigRenderSupport[i][kYes_MSAA] = false;
}
}
}
bool GrGLCaps::readPixelsSupported(const GrGLInterface* intf,
GrGLenum format,
GrGLenum type) const {
if (GR_GL_RGBA == format && GR_GL_UNSIGNED_BYTE == type) {
// ES 2 guarantees this format is supported
return true;
}
if (!fTwoFormatLimit) {
// not limited by ES 2's constraints
return true;
}
GrGLint otherFormat = GR_GL_RGBA;
GrGLint otherType = GR_GL_UNSIGNED_BYTE;
// The other supported format/type combo supported for ReadPixels
// can change based on which render target is bound
GR_GL_GetIntegerv(intf,
GR_GL_IMPLEMENTATION_COLOR_READ_FORMAT,
&otherFormat);
GR_GL_GetIntegerv(intf,
GR_GL_IMPLEMENTATION_COLOR_READ_TYPE,
&otherType);
return (GrGLenum)otherFormat == format && (GrGLenum)otherType == type;
}
void GrGLCaps::initFSAASupport(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) {
fMSFBOType = kNone_MSFBOType;
if (kDesktop_GrGLBinding != ctxInfo.binding()) {
// We prefer the EXT/IMG extension over ES3 MSAA because we've observed
// ES3 driver bugs on at least one device with a tiled GPU (N10).
if (ctxInfo.hasExtension("GL_EXT_multisampled_render_to_texture")) {
fMSFBOType = kES_EXT_MsToTexture_MSFBOType;
} else if (ctxInfo.hasExtension("GL_IMG_multisampled_render_to_texture")) {
fMSFBOType = kES_IMG_MsToTexture_MSFBOType;
} else if (!GR_GL_IGNORE_ES3_MSAA && ctxInfo.version() >= GR_GL_VER(3,0)) {
fMSFBOType = GrGLCaps::kES_3_0_MSFBOType;
} else if (ctxInfo.hasExtension("GL_CHROMIUM_framebuffer_multisample")) {
// chrome's extension is equivalent to the EXT msaa
// and fbo_blit extensions.
fMSFBOType = kDesktop_EXT_MSFBOType;
} else if (ctxInfo.hasExtension("GL_APPLE_framebuffer_multisample")) {
fMSFBOType = kES_Apple_MSFBOType;
}
} else {
if ((ctxInfo.version() >= GR_GL_VER(3,0)) ||
ctxInfo.hasExtension("GL_ARB_framebuffer_object")) {
fMSFBOType = GrGLCaps::kDesktop_ARB_MSFBOType;
} else if (ctxInfo.hasExtension("GL_EXT_framebuffer_multisample") &&
ctxInfo.hasExtension("GL_EXT_framebuffer_blit")) {
fMSFBOType = GrGLCaps::kDesktop_EXT_MSFBOType;
}
}
}
namespace {
const GrGLuint kUnknownBitCount = GrGLStencilBuffer::kUnknownBitCount;
}
void GrGLCaps::initStencilFormats(const GrGLContextInfo& ctxInfo) {
// 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 StencilFormat
// 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 == ctxInfo.binding()) {
bool supportsPackedDS =
ctxInfo.version() >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_EXT_packed_depth_stencil") ||
ctxInfo.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 but requires extensions
// for other formats.
// ES doesn't support using the unsized format.
fStencilFormats.push_back() = gS8;
//fStencilFormats.push_back() = gS16;
if (ctxInfo.version() >= GR_GL_VER(3,0) ||
ctxInfo.hasExtension("GL_OES_packed_depth_stencil")) {
fStencilFormats.push_back() = gD24S8;
}
if (ctxInfo.hasExtension("GL_OES_stencil4")) {
fStencilFormats.push_back() = gS4;
}
}
SkASSERT(0 == fStencilVerifiedColorConfigs.count());
fStencilVerifiedColorConfigs.push_back_n(fStencilFormats.count());
}
void GrGLCaps::markColorConfigAndStencilFormatAsVerified(
GrPixelConfig config,
const GrGLStencilBuffer::Format& format) {
#if !GR_GL_CHECK_FBO_STATUS_ONCE_PER_FORMAT
return;
#endif
SkASSERT((unsigned)config < (unsigned)kGrPixelConfigCnt);
SkASSERT(fStencilFormats.count() == fStencilVerifiedColorConfigs.count());
int count = fStencilFormats.count();
// we expect a really small number of possible formats so linear search
// should be OK
SkASSERT(count < 16);
for (int i = 0; i < count; ++i) {
if (format.fInternalFormat ==
fStencilFormats[i].fInternalFormat) {
fStencilVerifiedColorConfigs[i].markVerified(config);
return;
}
}
GrCrash("Why are we seeing a stencil format that "
"GrGLCaps doesn't know about.");
}
bool GrGLCaps::isColorConfigAndStencilFormatVerified(
GrPixelConfig config,
const GrGLStencilBuffer::Format& format) const {
#if !GR_GL_CHECK_FBO_STATUS_ONCE_PER_FORMAT
return false;
#endif
SkASSERT((unsigned)config < (unsigned)kGrPixelConfigCnt);
int count = fStencilFormats.count();
// we expect a really small number of possible formats so linear search
// should be OK
SkASSERT(count < 16);
for (int i = 0; i < count; ++i) {
if (format.fInternalFormat ==
fStencilFormats[i].fInternalFormat) {
return fStencilVerifiedColorConfigs[i].isVerified(config);
}
}
GrCrash("Why are we seeing a stencil format that "
"GLCaps doesn't know about.");
return false;
}
SkString GrGLCaps::dump() const {
SkString r = INHERITED::dump();
r.appendf("--- GL-Specific ---\n");
for (int i = 0; i < fStencilFormats.count(); ++i) {
r.appendf("Stencil Format %d, stencil bits: %02d, total bits: %02d\n",
i,
fStencilFormats[i].fStencilBits,
fStencilFormats[i].fTotalBits);
}
static const char* kMSFBOExtStr[] = {
"None",
"ARB",
"EXT",
"ES 3.0",
"Apple",
"IMG MS To Texture",
"EXT MS To Texture",
};
GR_STATIC_ASSERT(0 == kNone_MSFBOType);
GR_STATIC_ASSERT(1 == kDesktop_ARB_MSFBOType);
GR_STATIC_ASSERT(2 == kDesktop_EXT_MSFBOType);
GR_STATIC_ASSERT(3 == kES_3_0_MSFBOType);
GR_STATIC_ASSERT(4 == kES_Apple_MSFBOType);
GR_STATIC_ASSERT(5 == kES_IMG_MsToTexture_MSFBOType);
GR_STATIC_ASSERT(6 == kES_EXT_MsToTexture_MSFBOType);
GR_STATIC_ASSERT(GR_ARRAY_COUNT(kMSFBOExtStr) == kLast_MSFBOType + 1);
static const char* kFBFetchTypeStr[] = {
"None",
"EXT",
"NV",
};
GR_STATIC_ASSERT(0 == kNone_FBFetchType);
GR_STATIC_ASSERT(1 == kEXT_FBFetchType);
GR_STATIC_ASSERT(2 == kNV_FBFetchType);
GR_STATIC_ASSERT(GR_ARRAY_COUNT(kFBFetchTypeStr) == kLast_FBFetchType + 1);
r.appendf("Core Profile: %s\n", (fIsCoreProfile ? "YES" : "NO"));
r.appendf("Fixed Function Support: %s\n", (fFixedFunctionSupport ? "YES" : "NO"));
r.appendf("MSAA Type: %s\n", kMSFBOExtStr[fMSFBOType]);
r.appendf("FB Fetch Type: %s\n", kFBFetchTypeStr[fFBFetchType]);
r.appendf("Max FS Uniform Vectors: %d\n", fMaxFragmentUniformVectors);
r.appendf("Max FS Texture Units: %d\n", fMaxFragmentTextureUnits);
if (fFixedFunctionSupport) {
r.appendf("Max Fixed Function Texture Coords: %d\n", fMaxFixedFunctionTextureCoords);
}
r.appendf("Max Vertex Attributes: %d\n", fMaxVertexAttributes);
r.appendf("Support RGBA8 Render Buffer: %s\n", (fRGBA8RenderbufferSupport ? "YES": "NO"));
r.appendf("BGRA support: %s\n", (fBGRAFormatSupport ? "YES": "NO"));
r.appendf("BGRA is an internal format: %s\n", (fBGRAIsInternalFormat ? "YES": "NO"));
r.appendf("Support texture swizzle: %s\n", (fTextureSwizzleSupport ? "YES": "NO"));
r.appendf("Unpack Row length support: %s\n", (fUnpackRowLengthSupport ? "YES": "NO"));
r.appendf("Unpack Flip Y support: %s\n", (fUnpackFlipYSupport ? "YES": "NO"));
r.appendf("Pack Row length support: %s\n", (fPackRowLengthSupport ? "YES": "NO"));
r.appendf("Pack Flip Y support: %s\n", (fPackFlipYSupport ? "YES": "NO"));
r.appendf("Texture Usage support: %s\n", (fTextureUsageSupport ? "YES": "NO"));
r.appendf("Texture Storage support: %s\n", (fTexStorageSupport ? "YES": "NO"));
r.appendf("GL_R support: %s\n", (fTextureRedSupport ? "YES": "NO"));
r.appendf("GL_ARB_imaging support: %s\n", (fImagingSupport ? "YES": "NO"));
r.appendf("Two Format Limit: %s\n", (fTwoFormatLimit ? "YES": "NO"));
r.appendf("Fragment coord conventions support: %s\n",
(fFragCoordsConventionSupport ? "YES": "NO"));
r.appendf("Vertex array object support: %s\n", (fVertexArrayObjectSupport ? "YES": "NO"));
r.appendf("Use non-VBO for dynamic data: %s\n",
(fUseNonVBOVertexAndIndexDynamicData ? "YES" : "NO"));
r.appendf("Discard FrameBuffer support: %s\n", (fDiscardFBSupport ? "YES" : "NO"));
r.appendf("Full screen clear is free: %s\n", (fFullClearIsFree ? "YES" : "NO"));
return r;
}