示例#1
0
GrGpuGLShaders::GrGpuGLShaders(const GrGLContextInfo& ctxInfo)
    : GrGpuGL(ctxInfo) {

    // Enable supported shader-related caps
    if (kDesktop_GrGLBinding == this->glBinding()) {
        fCaps.fDualSourceBlendingSupport =
                            this->glVersion() >= GR_GL_VER(3,3) ||
                            this->hasExtension("GL_ARB_blend_func_extended");
        fCaps.fShaderDerivativeSupport = true;
        // we don't support GL_ARB_geometry_shader4, just GL 3.2+ GS
        fCaps.fGeometryShaderSupport = 
                                this->glVersion() >= GR_GL_VER(3,2) &&
                                this->glslGeneration() >= k150_GrGLSLGeneration;
    } else {
        fCaps.fShaderDerivativeSupport =
                            this->hasExtension("GL_OES_standard_derivatives");
    }

    GR_GL_GetIntegerv(this->glInterface(),
                      GR_GL_MAX_VERTEX_ATTRIBS,
                      &fMaxVertexAttribs);

    fProgramData = NULL;
    fProgramCache = new ProgramCache(this->glContextInfo());

#if 0
    this->programUnitTest();
#endif
}
示例#2
0
void GrGLCaps::initFSAASupport(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) {

    fMSFBOType = kNone_MSFBOType;
    if (kGL_GrGLStandard != ctxInfo.standard()) {
        // 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 (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;
        }
    }
}
示例#3
0
GrGpuGLShaders::GrGpuGLShaders(const GrGLInterface* gl)
    : GrGpuGL(gl, get_binding_in_use(gl)) {

    GrGLSLGeneration glslGeneration =
        GetGLSLGeneration(this->glBinding(), gl);

    // Enable supported shader-releated caps
    fCaps.fShaderSupport = true;
    fCaps.fSupportPerVertexCoverage = true;
    if (kDesktop_GrGLBinding == this->glBinding()) {
        fCaps.fDualSourceBlendingSupport =
            this->glVersion() >= GR_GL_VER(3,3) ||
            this->hasExtension("GL_ARB_blend_func_extended");
        fCaps.fShaderDerivativeSupport = true;
        // we don't support GL_ARB_geometry_shader4, just GL 3.2+ GS
        fCaps.fGeometryShaderSupport =
            this->glVersion() >= GR_GL_VER(3,2) &&
            glslGeneration >= k150_GLSLGeneration;
    } else {
        fCaps.fShaderDerivativeSupport =
            this->hasExtension("GL_OES_standard_derivatives");
    }

    GR_GL_GetIntegerv(gl, GR_GL_MAX_VERTEX_ATTRIBS, &fMaxVertexAttribs);

    fProgramData = NULL;
    fProgramCache = new ProgramCache(gl, glslGeneration);

#if 0
    this->programUnitTest();
#endif
}
GrGLVersion GrGLGetVersionFromString(const char* versionString) {
    if (NULL == versionString) {
        GrAssert(!"NULL GL version string.");
        return 0;
    }

    int major, minor;

    int n = sscanf(versionString, "%d.%d", &major, &minor);
    if (2 == n) {
        return GR_GL_VER(major, minor);
    }

    char profile[2];
    n = sscanf(versionString, "OpenGL ES-%c%c %d.%d", profile, profile+1,
               &major, &minor);
    if (4 == n) {
        return GR_GL_VER(major, minor);
    }

    n = sscanf(versionString, "OpenGL ES %d.%d", &major, &minor);
    if (2 == n) {
        return GR_GL_VER(major, minor);
    }

    return 0;
}
示例#5
0
GrGLVersion GrGLGetVersionFromString(const char* versionString) {
    if (nullptr == versionString) {
        SkDebugf("nullptr GL version string.");
        return GR_GL_INVALID_VER;
    }

    int major, minor;

    // check for mesa
    int mesaMajor, mesaMinor;
    int n = sscanf(versionString, "%d.%d Mesa %d.%d", &major, &minor, &mesaMajor, &mesaMinor);
    if (4 == n) {
        return GR_GL_VER(major, minor);
    }

    n = sscanf(versionString, "%d.%d", &major, &minor);
    if (2 == n) {
        return GR_GL_VER(major, minor);
    }

    char profile[2];
    n = sscanf(versionString, "OpenGL ES-%c%c %d.%d", profile, profile+1,
               &major, &minor);
    if (4 == n) {
        return GR_GL_VER(major, minor);
    }

    n = sscanf(versionString, "OpenGL ES %d.%d", &major, &minor);
    if (2 == n) {
        return GR_GL_VER(major, minor);
    }

    return GR_GL_INVALID_VER;
}
示例#6
0
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 (kGL_GrGLStandard == ctxInfo.standard()) {
        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());
}
示例#7
0
SkGLContext::GLFenceSync* SkGLContext::GLFenceSync::CreateIfSupported(const SkGLContext* ctx) {
    SkAutoTDelete<GLFenceSync> ret(new GLFenceSync);

    if (kGL_GrGLStandard == ctx->gl()->fStandard) {
        const GrGLubyte* versionStr;
        SK_GL_RET(*ctx, versionStr, GetString(GR_GL_VERSION));
        GrGLVersion version = GrGLGetVersionFromString(reinterpret_cast<const char*>(versionStr));
        if (version < GR_GL_VER(3,2) && !ctx->gl()->hasExtension("GL_ARB_sync")) {
            return nullptr;
        }
        ret->fGLFenceSync = reinterpret_cast<GLFenceSyncProc>(
            ctx->onPlatformGetProcAddress("glFenceSync"));
        ret->fGLClientWaitSync = reinterpret_cast<GLClientWaitSyncProc>(
            ctx->onPlatformGetProcAddress("glClientWaitSync"));
        ret->fGLDeleteSync = reinterpret_cast<GLDeleteSyncProc>(
            ctx->onPlatformGetProcAddress("glDeleteSync"));
    } else {
        if (!ctx->gl()->hasExtension("GL_APPLE_sync")) {
            return nullptr;
        }
        ret->fGLFenceSync = reinterpret_cast<GLFenceSyncProc>(
            ctx->onPlatformGetProcAddress("glFenceSyncAPPLE"));
        ret->fGLClientWaitSync = reinterpret_cast<GLClientWaitSyncProc>(
            ctx->onPlatformGetProcAddress("glClientWaitSyncAPPLE"));
        ret->fGLDeleteSync = reinterpret_cast<GLDeleteSyncProc>(
            ctx->onPlatformGetProcAddress("glDeleteSyncAPPLE"));
    }

    if (!ret->fGLFenceSync || !ret->fGLClientWaitSync || !ret->fGLDeleteSync) {
        return nullptr;
    }

    return ret.detach();
}
示例#8
0
GrGLint GLTestContext::createTextureRectangle(int width, int height, GrGLenum internalFormat,
                                          GrGLenum externalFormat, GrGLenum externalType,
                                          GrGLvoid* data) {
    if (!(kGL_GrGLStandard == fGL->fStandard && GrGLGetVersion(fGL) >= GR_GL_VER(3, 1)) &&
        !fGL->fExtensions.has("GL_ARB_texture_rectangle")) {
        return 0;
    }

    if  (GrGLGetGLSLVersion(fGL) < GR_GLSL_VER(1, 40)) {
        return 0;
    }

    GrGLuint id;
    GR_GL_CALL(fGL, GenTextures(1, &id));
    GR_GL_CALL(fGL, BindTexture(GR_GL_TEXTURE_RECTANGLE, id));
    GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_MAG_FILTER,
                                  GR_GL_NEAREST));
    GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_MIN_FILTER,
                                  GR_GL_NEAREST));
    GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_WRAP_S,
                                  GR_GL_CLAMP_TO_EDGE));    
    GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_WRAP_T,
                                  GR_GL_CLAMP_TO_EDGE));
    GR_GL_CALL(fGL, TexImage2D(GR_GL_TEXTURE_RECTANGLE, 0, internalFormat, width, height, 0,
                               externalFormat, externalType, data));
    return id;
}
示例#9
0
bool GrGLExtensions::init(GrGLStandard standard,
                          GrGLGetStringProc getString,
                          GrGLGetStringiProc getStringi,
                          GrGLGetIntegervProc getIntegerv) {
    fInitialized = false;
    fStrings->reset();

    if (NULL == getString) {
        return false;
    }

    // glGetStringi and indexed extensions were added in version 3.0 of desktop GL and ES.
    const GrGLubyte* verString = getString(GR_GL_VERSION);
    GrGLVersion version = GrGLGetVersionFromString((const char*) verString);
    if (GR_GL_INVALID_VER == version) {
        return false;
    }

    bool indexed = version >= GR_GL_VER(3, 0);

    if (indexed) {
        if (NULL == getStringi || NULL == getIntegerv) {
            return false;
        }
        GrGLint extensionCnt = 0;
        getIntegerv(GR_GL_NUM_EXTENSIONS, &extensionCnt);
        fStrings->push_back_n(extensionCnt);
        for (int i = 0; i < extensionCnt; ++i) {
            const char* ext = (const char*) getStringi(GR_GL_EXTENSIONS, i);
            (*fStrings)[i] = ext;
        }
    } else {
        const char* extensions = (const char*) getString(GR_GL_EXTENSIONS);
        if (NULL == extensions) {
            return false;
        }
        while (true) {
            // skip over multiple spaces between extensions
            while (' ' == *extensions) {
                ++extensions;
            }
            // quit once we reach the end of the string.
            if ('\0' == *extensions) {
                break;
            }
            // we found an extension
            size_t length = strcspn(extensions, " ");
            fStrings->push_back().set(extensions, length);
            extensions += length;
        }
    }
    if (!fStrings->empty()) {
        SkTLessFunctionToFunctorAdaptor<SkString, extension_compare> cmp;
        SkTQSort(&fStrings->front(), &fStrings->back(), cmp);
    }
    fInitialized = true;
    return true;
}
示例#10
0
extern "C" bool
SkiaGrGLInterfaceGLVersionGreaterThanOrEqualTo(SkiaGrGLInterfaceRef aGrGLInterface, int32_t major, int32_t minor) {
    const GrGLubyte* versionUByte;
    GR_GL_CALL_RET(static_cast<const GrGLInterface*>(aGrGLInterface), versionUByte, GetString(GR_GL_VERSION));
    const char* version = reinterpret_cast<const char*>(versionUByte);

    GrGLVersion glVersion = GrGLGetVersionFromString(version);
    return GR_GL_INVALID_VER != glVersion && glVersion >= GR_GL_VER(major, minor);
}
void GrGLContextInfo::reset() {
    fBindingInUse = kNone_GrGLBinding;
    fGLVersion = GR_GL_VER(0, 0);
    fGLSLGeneration = static_cast<GrGLSLGeneration>(0);
    fVendor = kOther_GrGLVendor;
    fIsMesa = false;
    fExtensions.reset();
    fGLCaps->reset();
}
示例#12
0
void GrGLContextInfo::reset() {
    fInterface.reset(NULL);
    fGLVersion = GR_GL_VER(0, 0);
    fGLSLGeneration = static_cast<GrGLSLGeneration>(0);
    fVendor = kOther_GrGLVendor;
    fRenderer = kOther_GrGLRenderer;
    fIsMesa = false;
    fIsChromium = false;
    fGLCaps->reset();
}
void GrGLSLCaps::initShaderPrecisionTable(const GrGLContextInfo& ctxInfo,
        const GrGLInterface* intf) {
    if (kGLES_GrGLStandard == ctxInfo.standard() || ctxInfo.version() >= GR_GL_VER(4, 1) ||
            ctxInfo.hasExtension("GL_ARB_ES2_compatibility")) {
        for (int s = 0; s < kGrShaderTypeCount; ++s) {
            if (kGeometry_GrShaderType != s) {
                GrShaderType shaderType = static_cast<GrShaderType>(s);
                GrGLenum glShader = shader_type_to_gl_shader(shaderType);
                PrecisionInfo* first = NULL;
                fShaderPrecisionVaries = false;
                for (int p = 0; p < kGrSLPrecisionCount; ++p) {
                    GrSLPrecision precision = static_cast<GrSLPrecision>(p);
                    GrGLenum glPrecision = precision_to_gl_float_type(precision);
                    GrGLint range[2];
                    GrGLint bits;
                    GR_GL_GetShaderPrecisionFormat(intf, glShader, glPrecision, range, &bits);
                    if (bits) {
                        fFloatPrecisions[s][p].fLogRangeLow = range[0];
                        fFloatPrecisions[s][p].fLogRangeHigh = range[1];
                        fFloatPrecisions[s][p].fBits = bits;
                        if (!first) {
                            first = &fFloatPrecisions[s][p];
                        }
                        else if (!fShaderPrecisionVaries) {
                            fShaderPrecisionVaries = (*first != fFloatPrecisions[s][p]);
                        }
                    }
                }
            }
        }
    }
    else {
        // We're on a desktop GL that doesn't have precision info. Assume they're all 32bit float.
        fShaderPrecisionVaries = false;
        for (int s = 0; s < kGrShaderTypeCount; ++s) {
            if (kGeometry_GrShaderType != s) {
                for (int p = 0; p < kGrSLPrecisionCount; ++p) {
                    fFloatPrecisions[s][p].fLogRangeLow = 127;
                    fFloatPrecisions[s][p].fLogRangeHigh = 127;
                    fFloatPrecisions[s][p].fBits = 23;
                }
            }
        }
    }
    // GetShaderPrecisionFormat doesn't accept GL_GEOMETRY_SHADER as a shader type. Assume they're
    // the same as the vertex shader. Only fragment shaders were ever allowed to omit support for
    // highp. GS was added after GetShaderPrecisionFormat was added to the list of features that
    // are recommended against.
    if (fGeometryShaderSupport) {
        for (int p = 0; p < kGrSLPrecisionCount; ++p) {
            fFloatPrecisions[kGeometry_GrShaderType][p] = fFloatPrecisions[kVertex_GrShaderType][p];
        }
    }
}
bool GrGLExtensions::init(GrGLBinding binding,
                          GrGLGetStringProc getString,
                          GrGLGetStringiProc getStringi,
                          GrGLGetIntegervProc getIntegerv) {
    fStrings.reset();
    if (NULL == getString) {
        return false;
    }
    bool indexed = false;
    if (kDesktop_GrGLBinding == binding) {
        const GrGLubyte* verString = getString(GR_GL_VERSION);
        if (NULL == verString) {
            return false;
        }
        GrGLVersion version = GrGLGetVersionFromString((const char*) verString);
        indexed = version >= GR_GL_VER(3, 0);
    }
    if (indexed) {
        if (NULL == getStringi || NULL == getIntegerv) {
            return false;
        }
        GrGLint extensionCnt = 0;
        getIntegerv(GR_GL_NUM_EXTENSIONS, &extensionCnt);
        fStrings.push_back_n(extensionCnt);
        for (int i = 0; i < extensionCnt; ++i) {
            const char* ext = (const char*) getStringi(GR_GL_EXTENSIONS, i);
            fStrings[i] = ext;
        }
    } else {
        const char* extensions = (const char*) getString(GR_GL_EXTENSIONS);
        if (NULL == extensions) {
            return false;
        }
        while (true) {
            // skip over multiple spaces between extensions
            while (' ' == *extensions) {
                ++extensions;
            }
            // quit once we reach the end of the string.
            if ('\0' == *extensions) {
                break;
            }
            // we found an extension
            size_t length = strcspn(extensions, " ");
            fStrings.push_back().set(extensions, length);
            extensions += length;
        }
    }
    if (0 != fStrings.count()) {
        SkTLessFunctionToFunctorAdaptor<SkString, extension_compare> cmp;
        SkTQSort(&fStrings.front(), &fStrings.back(), cmp);
    }
    return true;
}
示例#15
0
bool GrGLExtensions::init(GrGLStandard standard,
                          GrGLFunction<GrGLGetStringProc> getString,
                          GrGLFunction<GrGLGetStringiProc> getStringi,
                          GrGLFunction<GrGLGetIntegervProc> getIntegerv,
                          GrGLFunction<GrEGLQueryStringProc> queryString,
                          GrEGLDisplay eglDisplay) {
    fInitialized = false;
    fStrings->reset();

    if (!getString) {
        return false;
    }

    // glGetStringi and indexed extensions were added in version 3.0 of desktop GL and ES.
    const GrGLubyte* verString = getString(GR_GL_VERSION);
    GrGLVersion version = GrGLGetVersionFromString((const char*) verString);
    if (GR_GL_INVALID_VER == version) {
        return false;
    }

    bool indexed = version >= GR_GL_VER(3, 0);

    if (indexed) {
        if (!getStringi || !getIntegerv) {
            return false;
        }
        GrGLint extensionCnt = 0;
        getIntegerv(GR_GL_NUM_EXTENSIONS, &extensionCnt);
        fStrings->push_back_n(extensionCnt);
        for (int i = 0; i < extensionCnt; ++i) {
            const char* ext = (const char*) getStringi(GR_GL_EXTENSIONS, i);
            (*fStrings)[i] = ext;
        }
    } else {
        const char* extensions = (const char*) getString(GR_GL_EXTENSIONS);
        if (!extensions) {
            return false;
        }
        eat_space_sep_strings(fStrings.get(), extensions);
    }
    if (queryString) {
        const char* extensions = queryString(eglDisplay, GR_EGL_EXTENSIONS);

        eat_space_sep_strings(fStrings.get(), extensions);
    }
    if (!fStrings->empty()) {
        SkTLessFunctionToFunctorAdaptor<SkString, extension_compare> cmp;
        SkTQSort(&fStrings->front(), &fStrings->back(), cmp);
    }
    fInitialized = true;
    return true;
}
示例#16
0
GrGLVersion GrGLGetVersionFromString(const char* versionString) {
    if (NULL == versionString) {
        SkDEBUGFAIL("NULL GL version string.");
        return 0;
    }

    int major, minor;

    // check for mesa
    int mesaMajor, mesaMinor;
    int n = sscanf(versionString, "%d.%d Mesa %d.%d", &major, &minor, &mesaMajor, &mesaMinor);
    if (4 == n) {
        if (get_gl_version_for_mesa(mesaMajor, &major, &minor)) {
            return GR_GL_VER(major, minor);
        } else {
            return 0;
        }
    }

    n = sscanf(versionString, "%d.%d", &major, &minor);
    if (2 == n) {
        return GR_GL_VER(major, minor);
    }

    char profile[2];
    n = sscanf(versionString, "OpenGL ES-%c%c %d.%d", profile, profile+1,
               &major, &minor);
    if (4 == n) {
        return GR_GL_VER(major, minor);
    }

    n = sscanf(versionString, "OpenGL ES %d.%d", &major, &minor);
    if (2 == n) {
        return GR_GL_VER(major, minor);
    }

    return 0;
}
示例#17
0
void GrGLCaps::initFSAASupport(const GrGLContextInfo& ctxInfo) {

    fMSFBOType = kNone_MSFBOType;
    if (kDesktop_GrGLBinding != ctxInfo.binding()) {
       if (ctxInfo.hasExtension("GL_CHROMIUM_framebuffer_multisample")) {
           // chrome's extension is equivalent to the EXT msaa
           // and fbo_blit extensions.
           fMSFBOType = kDesktopEXT_MSFBOType;
       } else if (ctxInfo.hasExtension("GL_APPLE_framebuffer_multisample")) {
           fMSFBOType = kAppleES_MSFBOType;
       }
    } else {
        if ((ctxInfo.version() >= GR_GL_VER(3,0)) ||
            ctxInfo.hasExtension("GL_ARB_framebuffer_object")) {
            fMSFBOType = GrGLCaps::kDesktopARB_MSFBOType;
        } else if (ctxInfo.hasExtension("GL_EXT_framebuffer_multisample") &&
                   ctxInfo.hasExtension("GL_EXT_framebuffer_blit")) {
            fMSFBOType = GrGLCaps::kDesktopEXT_MSFBOType;
        }
        // TODO: We could populate fMSAACoverageModes using GetInternalformativ
        // on GL 4.2+. It's format-specific, though. See also
        // http://code.google.com/p/skia/issues/detail?id=470 about using actual
        // rather than requested sample counts in cache key.
        if (ctxInfo.hasExtension("GL_NV_framebuffer_multisample_coverage")) {
            fCoverageAAType = kNVDesktop_CoverageAAType;
            GrGLint count;
            GR_GL_GetIntegerv(ctxInfo.interface(),
                              GR_GL_MAX_MULTISAMPLE_COVERAGE_MODES,
                              &count);
            fMSAACoverageModes.setCount(count);
            GR_GL_GetIntegerv(ctxInfo.interface(),
                              GR_GL_MULTISAMPLE_COVERAGE_MODES,
                              (int*)&fMSAACoverageModes[0]);
            // The NV driver seems to return the modes already sorted but the
            // spec doesn't require this. So we sort.
            SkQSortCompareProc compareProc =
                reinterpret_cast<SkQSortCompareProc>(&coverage_mode_compare);
            SkQSort(&fMSAACoverageModes[0],
                    count,
                    sizeof(MSAACoverageMode),
                    compareProc);
        }
    }
    if (kNone_MSFBOType != fMSFBOType) {
        GR_GL_GetIntegerv(ctxInfo.interface(),
                          GR_GL_MAX_SAMPLES,
                          &fMaxSampleCount);
    }
}
示例#18
0
std::unique_ptr<sk_gpu_test::FenceSync> GLFenceSync::MakeIfSupported(
        const sk_gpu_test::GLTestContext* ctx) {
    std::unique_ptr<FenceSync> ret;
    if (kGL_GrGLStandard == ctx->gl()->fStandard) {
        if (GrGLGetVersion(ctx->gl()) < GR_GL_VER(3,2) && !ctx->gl()->hasExtension("GL_ARB_sync")) {
            return nullptr;
        }
        ret.reset(new GLFenceSync(ctx));
    } else {
        if (ctx->gl()->hasExtension("GL_APPLE_sync")) {
            ret.reset(new GLFenceSync(ctx, "APPLE"));
        } else if (ctx->gl()->hasExtension("GL_NV_fence")) {
            ret.reset(new GLNVFenceSync(ctx));
        } else if (GrGLGetVersion(ctx->gl()) >= GR_GL_VER(3, 0)) {
            ret.reset(new GLFenceSync(ctx));
        } else {
            return nullptr;
        }
    }
    if (!ret->validate()) {
        ret = nullptr;
    }
    return ret;
}
示例#19
0
bool GrGLGetGLSLGeneration(const GrGLInterface* gl, GrGLSLGeneration* generation) {
    SkASSERT(generation);
    GrGLSLVersion ver = GrGLGetGLSLVersion(gl);
    if (GR_GLSL_INVALID_VER == ver) {
        return false;
    }
    switch (gl->fStandard) {
        case kGL_GrGLStandard:
            SkASSERT(ver >= GR_GLSL_VER(1,10));
            if (ver >= GR_GLSL_VER(4,20)) {
                *generation = k420_GrGLSLGeneration;
            } else if (ver >= GR_GLSL_VER(4,00)) {
                *generation = k400_GrGLSLGeneration;
            } else if (ver >= GR_GLSL_VER(3,30)) {
                *generation = k330_GrGLSLGeneration;
            } else if (ver >= GR_GLSL_VER(1,50)) {
                *generation = k150_GrGLSLGeneration;
            } else if (ver >= GR_GLSL_VER(1,40)) {
                *generation = k140_GrGLSLGeneration;
            } else if (ver >= GR_GLSL_VER(1,30)) {
                *generation = k130_GrGLSLGeneration;
            } else {
                *generation = k110_GrGLSLGeneration;
            }
            return true;
        case kGLES_GrGLStandard:
            SkASSERT(ver >= GR_GL_VER(1,00));
            if (ver >= GR_GLSL_VER(3,20)) {
                *generation = k320es_GrGLSLGeneration;
            } else if (ver >= GR_GLSL_VER(3,10)) {
                *generation = k310es_GrGLSLGeneration;
            } else if (ver >= GR_GLSL_VER(3,00)) {
                *generation = k330_GrGLSLGeneration;
            } else {
                *generation = k110_GrGLSLGeneration;
            }
            return true;
        default:
            SK_ABORT("Unknown GL Standard");
            return false;
    }
}
示例#20
0
文件: GrGLCaps.cpp 项目: ghub/NVprSDK
void GrGLCaps::initFSAASupport(const GrGLContextInfo& ctxInfo) {

    fMSFBOType = kNone_MSFBOType;
    if (kDesktop_GrGLBinding != ctxInfo.binding()) {
       if (ctxInfo.hasExtension("GL_CHROMIUM_framebuffer_multisample")) {
           // chrome's extension is equivalent to the EXT msaa
           // and fbo_blit extensions.
           fMSFBOType = kDesktopEXT_MSFBOType;
       } else if (ctxInfo.hasExtension("GL_APPLE_framebuffer_multisample")) {
            fMSFBOType = kAppleES_MSFBOType;
        }
    } else {
        if ((ctxInfo.version() >= GR_GL_VER(3,0)) ||
            ctxInfo.hasExtension("GL_ARB_framebuffer_object")) {
            fMSFBOType = GrGLCaps::kDesktopARB_MSFBOType;
        } else if (ctxInfo.hasExtension("GL_EXT_framebuffer_multisample") &&
                   ctxInfo.hasExtension("GL_EXT_framebuffer_blit")) {
            fMSFBOType = GrGLCaps::kDesktopEXT_MSFBOType;
        }
    }
}
示例#21
0
GrGLSLGeneration GrGetGLSLGeneration(GrGLBinding binding,
                                     const GrGLInterface* gl) {
    GrGLSLVersion ver = GrGLGetGLSLVersion(gl);
    switch (binding) {
    case kDesktop_GrGLBinding:
        GrAssert(ver >= GR_GLSL_VER(1,10));
        if (ver >= GR_GLSL_VER(1,50)) {
            return k150_GrGLSLGeneration;
        } else if (ver >= GR_GLSL_VER(1,30)) {
            return k130_GrGLSLGeneration;
        } else {
            return k110_GrGLSLGeneration;
        }
    case kES2_GrGLBinding:
        // version 1.00 of ES GLSL based on ver 1.20 of desktop GLSL
        GrAssert(ver >= GR_GL_VER(1,00));
        return k110_GrGLSLGeneration;
    default:
        GrCrash("Unknown GL Binding");
        return k110_GrGLSLGeneration; // suppress warning
    }
}
const GrGLInterface* GrGLCreateNativeInterface() {
    if (NULL != glXGetCurrentContext()) {
        const char* versionString = (const char*) glGetString(GL_VERSION);
        const char* extString = (const char*) glGetString(GL_EXTENSIONS);
        GrGLVersion glVer = GrGLGetVersionFromString(versionString);

        if (glVer < GR_GL_VER(1,5)) {
            // We must have array and element_array buffer objects.
            return NULL;
        }

        GrGLInterface* interface = new GrGLInterface();

        interface->fActiveTexture = glActiveTexture;
        GR_GL_GET_PROC(AttachShader);
        GR_GL_GET_PROC(BindAttribLocation);
        GR_GL_GET_PROC(BindBuffer);
        GR_GL_GET_PROC(BindFragDataLocation);
        GR_GL_GET_PROC(BeginQuery);
        interface->fBindTexture = glBindTexture;
        interface->fBlendFunc = glBlendFunc;

        if (glVer >= GR_GL_VER(1,4) ||
            GrGLHasExtensionFromString("GL_ARB_imaging", extString)) {
            GR_GL_GET_PROC(BlendColor);
            GR_GL_GET_PROC(BlendEquation);
        } else {
            if (GrGLHasExtensionFromString("GL_EXT_blend_color", extString)) {
                GR_GL_GET_PROC_SUFFIX(BlendColor, EXT);
            } 
            if (GrGLHasExtensionFromString("GL_EXT_blend_minmax", extString) ||
                GrGLHasExtensionFromString("GL_EXT_blend_subtract", extString)) {
                GR_GL_GET_PROC_SUFFIX(BlendEquation, EXT);
            } 
        } 

        GR_GL_GET_PROC(BufferData);
        GR_GL_GET_PROC(BufferSubData);
        interface->fClear = glClear;
        interface->fClearColor = glClearColor;
        interface->fClearStencil = glClearStencil;
        interface->fColorMask = glColorMask;
        interface->fColorPointer = glColorPointer;
        GR_GL_GET_PROC(CompileShader);
        interface->fCompressedTexImage2D = glCompressedTexImage2D;
        GR_GL_GET_PROC(CreateProgram);
        GR_GL_GET_PROC(CreateShader);
        interface->fCullFace = glCullFace;
        GR_GL_GET_PROC(DeleteBuffers);
        GR_GL_GET_PROC(DeleteProgram);
        GR_GL_GET_PROC(DeleteQueries);
        GR_GL_GET_PROC(DeleteShader);
        interface->fDeleteTextures = glDeleteTextures;
        interface->fDepthMask = glDepthMask;
        interface->fDisable = glDisable;
        GR_GL_GET_PROC(DisableVertexAttribArray);
        interface->fDrawArrays = glDrawArrays;
        interface->fDrawBuffer = glDrawBuffer;
        GR_GL_GET_PROC(DrawBuffers);
        interface->fDrawElements = glDrawElements;
        interface->fEnable = glEnable;
        GR_GL_GET_PROC(EnableVertexAttribArray);
        GR_GL_GET_PROC(EndQuery);
        interface->fFinish = glFinish;
        interface->fFlush = glFlush;
        interface->fFrontFace = glFrontFace;
        GR_GL_GET_PROC(GenBuffers);
        GR_GL_GET_PROC(GetBufferParameteriv);
        interface->fGetError = glGetError;
        interface->fGetIntegerv = glGetIntegerv;
        GR_GL_GET_PROC(GetQueryObjectiv);
        GR_GL_GET_PROC(GetQueryObjectuiv);
        if (glVer >= GR_GL_VER(3,3) ||
            GrGLHasExtensionFromString("GL_ARB_timer_query", extString)) {
            GR_GL_GET_PROC(GetQueryObjecti64v);
            GR_GL_GET_PROC(GetQueryObjectui64v);
            GR_GL_GET_PROC(QueryCounter);
        } else if (GrGLHasExtensionFromString("GL_EXT_timer_query", extString)) {
            GR_GL_GET_PROC_SUFFIX(GetQueryObjecti64v, EXT);
            GR_GL_GET_PROC_SUFFIX(GetQueryObjectui64v, EXT);
        }
        GR_GL_GET_PROC(GetQueryiv);
        GR_GL_GET_PROC(GetProgramInfoLog);
        GR_GL_GET_PROC(GetProgramiv);
        GR_GL_GET_PROC(GetShaderInfoLog);
        GR_GL_GET_PROC(GetShaderiv);
        interface->fGetString = glGetString;
        interface->fGetTexLevelParameteriv = glGetTexLevelParameteriv;
        GR_GL_GET_PROC(GenQueries);
        interface->fGenTextures = glGenTextures;
        GR_GL_GET_PROC(GetUniformLocation);
        interface->fLineWidth = glLineWidth;
        GR_GL_GET_PROC(LinkProgram);
        GR_GL_GET_PROC(MapBuffer);
        interface->fPixelStorei = glPixelStorei;
        interface->fReadBuffer = glReadBuffer;
        interface->fReadPixels = glReadPixels;
        if (GrGLHasExtensionFromString("GL_NV_framebuffer_multisample_coverage",
                                       extString)) {
            GR_GL_GET_PROC_SUFFIX(RenderbufferStorageMultisampleCoverage, NV);
        }
        interface->fScissor = glScissor;
        GR_GL_GET_PROC(ShaderSource);
        interface->fStencilFunc = glStencilFunc;
        GR_GL_GET_PROC(StencilFuncSeparate);
        interface->fStencilMask = glStencilMask;
        GR_GL_GET_PROC(StencilMaskSeparate);
        interface->fStencilOp = glStencilOp;
        GR_GL_GET_PROC(StencilOpSeparate);
        interface->fTexImage2D = glTexImage2D;
        interface->fTexParameteri = glTexParameteri;
        if (glVer >= GR_GL_VER(4,2) ||
            GrGLHasExtensionFromString("GL_ARB_texture_storage", extString)) {
            GR_GL_GET_PROC(TexStorage2D);
        } else if (GrGLHasExtensionFromString("GL_EXT_texture_storage", extString)) {
            GR_GL_GET_PROC_SUFFIX(TexStorage2D, EXT);
        }
        interface->fTexSubImage2D = glTexSubImage2D;
        GR_GL_GET_PROC(Uniform1f);
        GR_GL_GET_PROC(Uniform1i);
        GR_GL_GET_PROC(Uniform1fv);
        GR_GL_GET_PROC(Uniform1iv);
        GR_GL_GET_PROC(Uniform2f);
        GR_GL_GET_PROC(Uniform2i);
        GR_GL_GET_PROC(Uniform2fv);
        GR_GL_GET_PROC(Uniform2iv);
        GR_GL_GET_PROC(Uniform3f);
        GR_GL_GET_PROC(Uniform3i);
        GR_GL_GET_PROC(Uniform3fv);
        GR_GL_GET_PROC(Uniform3iv);
        GR_GL_GET_PROC(Uniform4f);
        GR_GL_GET_PROC(Uniform4i);
        GR_GL_GET_PROC(Uniform4fv);
        GR_GL_GET_PROC(Uniform4iv);
        GR_GL_GET_PROC(UniformMatrix2fv);
        GR_GL_GET_PROC(UniformMatrix3fv);
        GR_GL_GET_PROC(UniformMatrix4fv);
        GR_GL_GET_PROC(UnmapBuffer);
        GR_GL_GET_PROC(UseProgram);
        GR_GL_GET_PROC(VertexAttrib4fv);
        GR_GL_GET_PROC(VertexAttribPointer);
        interface->fViewport = glViewport;
        GR_GL_GET_PROC(BindFragDataLocationIndexed);

        // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since
        // GL_ARB_framebuffer_object doesn't use ARB suffix.)
        if (glVer >= GR_GL_VER(3,0) ||
            GrGLHasExtensionFromString("GL_ARB_framebuffer_object",
                                       extString)) {
            GR_GL_GET_PROC(GenFramebuffers);
            GR_GL_GET_PROC(GetFramebufferAttachmentParameteriv);
            GR_GL_GET_PROC(GetRenderbufferParameteriv);
            GR_GL_GET_PROC(BindFramebuffer);
            GR_GL_GET_PROC(FramebufferTexture2D);
            GR_GL_GET_PROC(CheckFramebufferStatus);
            GR_GL_GET_PROC(DeleteFramebuffers);
            GR_GL_GET_PROC(RenderbufferStorage);
            GR_GL_GET_PROC(GenRenderbuffers);
            GR_GL_GET_PROC(DeleteRenderbuffers);
            GR_GL_GET_PROC(FramebufferRenderbuffer);
            GR_GL_GET_PROC(BindRenderbuffer);
            GR_GL_GET_PROC(RenderbufferStorageMultisample);
            GR_GL_GET_PROC(BlitFramebuffer);
        } else if (GrGLHasExtensionFromString("GL_EXT_framebuffer_object",
                                              extString)) {
            GR_GL_GET_PROC_SUFFIX(GenFramebuffers, EXT);
            GR_GL_GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
            GR_GL_GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
            GR_GL_GET_PROC_SUFFIX(BindFramebuffer, EXT);
            GR_GL_GET_PROC_SUFFIX(FramebufferTexture2D, EXT);
            GR_GL_GET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
            GR_GL_GET_PROC_SUFFIX(DeleteFramebuffers, EXT);
            GR_GL_GET_PROC_SUFFIX(RenderbufferStorage, EXT);
            GR_GL_GET_PROC_SUFFIX(GenRenderbuffers, EXT);
            GR_GL_GET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
            GR_GL_GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
            GR_GL_GET_PROC_SUFFIX(BindRenderbuffer, EXT);
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_multisample",
                                             extString)) {
                GR_GL_GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
            }
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_blit",
                                             extString)) {
                GR_GL_GET_PROC_SUFFIX(BlitFramebuffer, EXT);
            }
        } else {
            // we must have FBOs
            delete interface;
            return NULL;
        }
        interface->fBindingsExported = kDesktop_GrGLBinding;

        return interface;
    } else {
        return NULL;
    }
}
const GrGLInterface* GrGLCreateNativeInterface() {
    // The gl functions are not context-specific so we create one global
    // interface
    static SkAutoTUnref<GrGLInterface> glInterface;
    if (!glInterface.get()) {
        GrGLInterface* interface = new GrGLInterface;
        glInterface.reset(interface);
        const char* verStr = (const char*) glGetString(GL_VERSION);
        GrGLVersion ver = GrGLGetVersionFromString(verStr);
        const char* extStr = (const char*) glGetString(GL_EXTENSIONS);

        interface->fBindingsExported = kDesktop_GrGLBinding;
        interface->fActiveTexture = glActiveTexture;
        interface->fAttachShader = glAttachShader;
        interface->fBeginQuery = glBeginQuery;
        interface->fBindAttribLocation = glBindAttribLocation;
        interface->fBindBuffer = glBindBuffer;
        if (ver >= GR_GL_VER(3,0)) {
            #if GL_VERSION_3_0
                interface->fBindFragDataLocation = glBindFragDataLocation;
            #else
                interface->fBindFragDataLocation = GET_PROC(BindFragDataLocation);
            #endif
        }
        interface->fBindTexture = glBindTexture;
        interface->fBlendFunc = glBlendFunc;

        if (ver >= GR_GL_VER(1,4)) {
            interface->fBlendColor = glBlendColor;
        } else if (GrGLHasExtensionFromString("GL_ARB_imaging", extStr) ||
                   GrGLHasExtensionFromString("GL_EXT_blend_color", extStr)) {
            GET_PROC(BlendColor);
        }

        interface->fBufferData = glBufferData;
        interface->fBufferSubData = glBufferSubData;
        interface->fClear = glClear;
        interface->fClearColor = glClearColor;
        interface->fClearStencil = glClearStencil;
        interface->fColorMask = glColorMask;
        interface->fCompileShader = glCompileShader;
        interface->fCompressedTexImage2D = glCompressedTexImage2D;
        interface->fCreateProgram = glCreateProgram;
        interface->fCreateShader = glCreateShader;
        interface->fCullFace = glCullFace;
        interface->fDeleteBuffers = glDeleteBuffers;
        interface->fDeleteProgram = glDeleteProgram;
        interface->fDeleteQueries = glDeleteQueries;
        interface->fDeleteShader = glDeleteShader;
        interface->fDeleteTextures = glDeleteTextures;
        interface->fDepthMask = glDepthMask;
        interface->fDisable = glDisable;
        interface->fDisableVertexAttribArray =
                                            glDisableVertexAttribArray;
        interface->fDrawArrays = glDrawArrays;
        interface->fDrawBuffer = glDrawBuffer;
        interface->fDrawBuffers = glDrawBuffers;
        interface->fDrawElements = glDrawElements;
        interface->fEnable = glEnable;
        interface->fEnableVertexAttribArray = glEnableVertexAttribArray;
        interface->fEndQuery = glEndQuery;
        interface->fFinish = glFinish;
        interface->fFlush = glFlush;
        interface->fFrontFace = glFrontFace;
        interface->fGenBuffers = glGenBuffers;
        interface->fGenQueries = glGenQueries;
        interface->fGetBufferParameteriv = glGetBufferParameteriv;
        interface->fGetError = glGetError;
        interface->fGetIntegerv = glGetIntegerv;
        interface->fGetProgramInfoLog = glGetProgramInfoLog;
        interface->fGetProgramiv = glGetProgramiv;
        interface->fGetQueryiv = glGetQueryiv;
        interface->fGetQueryObjectiv = glGetQueryObjectiv;
        interface->fGetQueryObjectuiv = glGetQueryObjectuiv;
        interface->fGetShaderInfoLog = glGetShaderInfoLog;
        interface->fGetShaderiv = glGetShaderiv;
        interface->fGetString = glGetString;
        interface->fGetTexLevelParameteriv = glGetTexLevelParameteriv;
        interface->fGenTextures = glGenTextures;
        interface->fGetUniformLocation = glGetUniformLocation;
        interface->fLineWidth = glLineWidth;
        interface->fLinkProgram = glLinkProgram;
        interface->fMapBuffer = glMapBuffer;
        interface->fPixelStorei = glPixelStorei;
        interface->fReadBuffer = glReadBuffer;
        interface->fReadPixels = glReadPixels;
        interface->fScissor = glScissor;
        interface->fShaderSource = glShaderSource;
        interface->fStencilFunc = glStencilFunc;
        interface->fStencilFuncSeparate = glStencilFuncSeparate;
        interface->fStencilMask = glStencilMask;
        interface->fStencilMaskSeparate = glStencilMaskSeparate;
        interface->fStencilOp = glStencilOp;
        interface->fStencilOpSeparate = glStencilOpSeparate;
        // mac uses GLenum for internalFormat param (non-standard)
        // amounts to int vs. uint.
        interface->fTexImage2D = (GrGLTexImage2DProc)glTexImage2D;
        interface->fTexParameteri = glTexParameteri;
        interface->fTexParameteriv = glTexParameteriv;
    #if GL_ARB_texture_storage || GL_VERSION_4_2
        interface->fTexStorage2D = glTexStorage2D
    #elif GL_EXT_texture_storage
        interface->fTexStorage2D = glTexStorage2DEXT;
    #else
        if (ver >= GR_GL_VER(4,2) ||
            GrGLHasExtensionFromString("GL_ARB_texture_storage", extStr)) {
            GET_PROC(TexStorage2D);
        } else if (GrGLHasExtensionFromString("GL_EXT_texture_storage", extStr)) {
            GET_PROC_SUFFIX(TexStorage2D, EXT);
        }
    #endif
        interface->fTexSubImage2D = glTexSubImage2D;
        interface->fUniform1f = glUniform1f;
        interface->fUniform1i = glUniform1i;
        interface->fUniform1fv = glUniform1fv;
        interface->fUniform1iv = glUniform1iv;
        interface->fUniform2f = glUniform2f;
        interface->fUniform2i = glUniform2i;
        interface->fUniform2fv = glUniform2fv;
        interface->fUniform2iv = glUniform2iv;
        interface->fUniform3f = glUniform3f;
        interface->fUniform3i = glUniform3i;
        interface->fUniform3fv = glUniform3fv;
        interface->fUniform3iv = glUniform3iv;
        interface->fUniform4f = glUniform4f;
        interface->fUniform4i = glUniform4i;
        interface->fUniform4fv = glUniform4fv;
        interface->fUniform4iv = glUniform4iv;
        interface->fUniform4fv = glUniform4fv;
        interface->fUniformMatrix2fv = glUniformMatrix2fv;
        interface->fUniformMatrix3fv = glUniformMatrix3fv;
        interface->fUniformMatrix4fv = glUniformMatrix4fv;
        interface->fUnmapBuffer = glUnmapBuffer;
        interface->fUseProgram = glUseProgram;
        interface->fVertexAttrib4fv = glVertexAttrib4fv;
        interface->fVertexAttribPointer = glVertexAttribPointer;
        interface->fViewport = glViewport;

        if (ver >= GR_GL_VER(3,3) || GrGLHasExtensionFromString("GL_ARB_timer_query", extStr)) {
            // ARB extension doesn't use the ARB suffix on the function name
            #if GL_ARB_timer_query || GL_VERSION_3_3
                interface->fQueryCounter = glQueryCounter;
                interface->fGetQueryObjecti64v = glGetQueryObjecti64v;
                interface->fGetQueryObjectui64v = glGetQueryObjectui64v;
            #else
                interface->fQueryCounter = GET_PROC(QueryCounter);
                interface->fGetQueryObjecti64v = GET_PROC(GetQueryObjecti64v);
                interface->fGetQueryObjectui64v = GET_PROC(GetQueryObjectui64v);
            #endif
        } else if (GrGLHasExtensionFromString("GL_EXT_timer_query", extStr)) {
            #if GL_EXT_timer_query
                interface->fGetQueryObjecti64v = glGetQueryObjecti64vEXT;
                interface->fGetQueryObjectui64v = glGetQueryObjectui64vEXT;
            #else
                interface->fGetQueryObjecti64v = GET_PROC_SUFFIX(GetQueryObjecti64v, EXT);
                interface->fGetQueryObjectui64v = GET_PROC_SUFFIX(GetQueryObjectui64v, EXT);
            #endif
        }

        if (ver >= GR_GL_VER(3,0) || GrGLHasExtensionFromString("GL_ARB_framebuffer_object", extStr)) {
            // ARB extension doesn't use the ARB suffix on the function names
            #if GL_VERSION_3_0 || GL_ARB_framebuffer_object
                interface->fGenFramebuffers = glGenFramebuffers;
                interface->fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameteriv;
                interface->fGetRenderbufferParameteriv = glGetRenderbufferParameteriv;
                interface->fBindFramebuffer = glBindFramebuffer;
                interface->fFramebufferTexture2D = glFramebufferTexture2D;
                interface->fCheckFramebufferStatus = glCheckFramebufferStatus;
                interface->fDeleteFramebuffers = glDeleteFramebuffers;
                interface->fRenderbufferStorage = glRenderbufferStorage;
                interface->fGenRenderbuffers = glGenRenderbuffers;
                interface->fDeleteRenderbuffers = glDeleteRenderbuffers;
                interface->fFramebufferRenderbuffer = glFramebufferRenderbuffer;
                interface->fBindRenderbuffer = glBindRenderbuffer;
                interface->fRenderbufferStorageMultisample = glRenderbufferStorageMultisample;
                interface->fBlitFramebuffer = glBlitFramebuffer;
            #else
                interface->fGenFramebuffers = GET_PROC(GenFramebuffers);
                interface->fGetFramebufferAttachmentParameteriv = GET_PROC(GetFramebufferAttachmentParameteriv);
                interface->fGetRenderbufferParameteriv = GET_PROC(GetRenderbufferParameteriv);
                interface->fBindFramebuffer = GET_PROC(BindFramebuffer);
                interface->fFramebufferTexture2D = GET_PROC(FramebufferTexture2D);
                interface->fCheckFramebufferStatus = GET_PROC(CheckFramebufferStatus);
                interface->fDeleteFramebuffers = GET_PROC(DeleteFramebuffers);
                interface->fRenderbufferStorage = GET_PROC(RenderbufferStorage);
                interface->fGenRenderbuffers = GET_PROC(GenRenderbuffers);
                interface->fDeleteRenderbuffers = GET_PROC(DeleteRenderbuffers);
                interface->fFramebufferRenderbuffer = GET_PROC(FramebufferRenderbuffer);
                interface->fBindRenderbuffer = GET_PROC(BindRenderbuffer);
                interface->fRenderbufferStorageMultisample = GET_PROC(RenderbufferStorageMultisample);
                interface->fBlitFramebuffer = GET_PROC(BlitFramebuffer);
            #endif
        } else {
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_object", extStr)) {
                #if GL_EXT_framebuffer_object
                    interface->fGenFramebuffers = glGenFramebuffersEXT;
                    interface->fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameterivEXT;
                    interface->fGetRenderbufferParameteriv = glGetRenderbufferParameterivEXT;
                    interface->fBindFramebuffer = glBindFramebufferEXT;
                    interface->fFramebufferTexture2D = glFramebufferTexture2DEXT;
                    interface->fCheckFramebufferStatus = glCheckFramebufferStatusEXT;
                    interface->fDeleteFramebuffers = glDeleteFramebuffersEXT;
                    interface->fRenderbufferStorage = glRenderbufferStorageEXT;
                    interface->fGenRenderbuffers = glGenRenderbuffersEXT;
                    interface->fDeleteRenderbuffers = glDeleteRenderbuffersEXT;
                    interface->fFramebufferRenderbuffer = glFramebufferRenderbufferEXT;
                    interface->fBindRenderbuffer = glBindRenderbufferEXT;
                #else
                    interface->fGenFramebuffers = GET_PROC_SUFFIX(GenFramebuffers, EXT);
                    interface->fGetFramebufferAttachmentParameteriv = GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
                    interface->fGetRenderbufferParameteriv = GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
                    interface->fBindFramebuffer = GET_PROC_SUFFIX(BindFramebuffer, EXT);
                    interface->fFramebufferTexture2D = GET_PROC_SUFFIX(FramebufferTexture2D, EXT);
                    interface->fCheckFramebufferStatus = GET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
                    interface->fDeleteFramebuffers = GET_PROC_SUFFIX(DeleteFramebuffers, EXT);
                    interface->fRenderbufferStorage = GET_PROC_SUFFIX(RenderbufferStorage, EXT);
                    interface->fGenRenderbuffers = GET_PROC_SUFFIX(GenRenderbuffers, EXT);
                    interface->fDeleteRenderbuffers = GET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
                    interface->fFramebufferRenderbuffer = GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
                    interface->fBindRenderbuffer = GET_PROC_SUFFIX(BindRenderbuffer, EXT);
                #endif
            }
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_multisample", extStr)) {
                #if GL_EXT_framebuffer_multisample
                    interface->fRenderbufferStorageMultisample = glRenderbufferStorageMultisampleEXT;
                #else
                    interface->fRenderbufferStorageMultisample = GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
                #endif
            }
            if (GrGLHasExtensionFromString("", extStr)) {
                #if GL_EXT_framebuffer_blit
                    interface->fBlitFramebuffer = glBlitFramebufferEXT;
                #else
                    interface->fBlitFramebuffer = GET_PROC_SUFFIX(BlitFramebuffer, EXT);
                #endif
            }
        }
        if (ver >= GR_GL_VER(3,3) || GrGLHasExtensionFromString("GL_ARB_blend_func_extended", extStr)) {
            // ARB extension doesn't use the ARB suffix on the function name
            #if GL_VERSION_3_3 || GL_ARB_blend_func_extended
                interface->fBindFragDataLocationIndexed = glBindFragDataLocationIndexed;
            #else
                interface->fBindFragDataLocationIndexed = GET_PROC(BindFragDataLocationIndexed);
            #endif
        }

        interface->fBindingsExported = kDesktop_GrGLBinding;
    }
    glInterface.get()->ref();
    return glInterface.get();
}
示例#24
0
const GrGLInterface* GrGLAssembleGLInterface(void* ctx, GrGLGetProc get) {
    GET_PROC_LOCAL(GetString);
    GET_PROC_LOCAL(GetStringi);
    GET_PROC_LOCAL(GetIntegerv);

    // GetStringi may be nullptr depending on the GL version.
    if (nullptr == GetString || nullptr == GetIntegerv) {
        return nullptr;
    }

    const char* versionString = (const char*) GetString(GR_GL_VERSION);
    GrGLVersion glVer = GrGLGetVersionFromString(versionString);

    if (glVer < GR_GL_VER(1,5) || GR_GL_INVALID_VER == glVer) {
        // We must have array and element_array buffer objects.
        return nullptr;
    }

    GrEGLQueryStringProc queryString;
    GrEGLDisplay display;
    get_egl_query_and_display(&queryString, &display, ctx, get);
    GrGLExtensions extensions;
    if (!extensions.init(kGL_GrGLStandard, GetString, GetStringi, GetIntegerv, queryString,
                         display)) {
        return nullptr;
    }

    GrGLInterface* interface = new GrGLInterface();
    GrGLInterface::Functions* functions = &interface->fFunctions;

    GET_PROC(ActiveTexture);
    GET_PROC(AttachShader);
    GET_PROC(BindAttribLocation);
    GET_PROC(BindBuffer);
    if (glVer >= GR_GL_VER(3,0)) {
        GET_PROC(BindFragDataLocation);
    }
    GET_PROC(BeginQuery);
    GET_PROC(BindTexture);

    if (extensions.has("GL_KHR_blend_equation_advanced")) {
        GET_PROC_SUFFIX(BlendBarrier, KHR);
    } else if (extensions.has("GL_NV_blend_equation_advanced")) {
        GET_PROC_SUFFIX(BlendBarrier, NV);
    }

    if (glVer >= GR_GL_VER(1,4) ||
        extensions.has("GL_ARB_imaging")) {
        GET_PROC(BlendColor);
    } else if (extensions.has("GL_EXT_blend_color")) {
        GET_PROC_SUFFIX(BlendColor, EXT);
    }

    if (glVer >= GR_GL_VER(1,4) ||
        extensions.has("GL_ARB_imaging")) {
        GET_PROC(BlendEquation);
    } else if (extensions.has("GL_EXT_blend_subtract")) {
        GET_PROC_SUFFIX(BlendEquation, EXT);
    }

    GET_PROC(BlendFunc);
    GET_PROC(BufferData);
    GET_PROC(BufferSubData);
    GET_PROC(Clear);
    GET_PROC(ClearColor);
    GET_PROC(ClearStencil);
    GET_PROC(ColorMask);
    GET_PROC(CompileShader);
    GET_PROC(CompressedTexImage2D);
    GET_PROC(CompressedTexSubImage2D);
    GET_PROC(CopyTexSubImage2D);
    GET_PROC(CreateProgram);
    GET_PROC(CreateShader);
    GET_PROC(CullFace);
    GET_PROC(DeleteBuffers);
    GET_PROC(DeleteProgram);
    GET_PROC(DeleteQueries);
    GET_PROC(DeleteShader);
    GET_PROC(DeleteTextures);
    GET_PROC(DepthMask);
    GET_PROC(Disable);
    GET_PROC(DisableVertexAttribArray);
    GET_PROC(DrawArrays);
    GET_PROC(DrawBuffer);
    GET_PROC(DrawBuffers);
    GET_PROC(DrawElements);

    if (glVer >= GR_GL_VER(3,1) || extensions.has("GL_ARB_draw_instanced") ||
        extensions.has("GL_EXT_draw_instanced")) {
        GET_PROC(DrawArraysInstanced);
        GET_PROC(DrawElementsInstanced);
    }

    if (glVer >= GR_GL_VER(4,0)) {
        // We don't use ARB_draw_indirect because it does not support a base instance.
        GET_PROC(DrawArraysIndirect);
        GET_PROC(DrawElementsIndirect);
    }

    GET_PROC(Enable);
    GET_PROC(EnableVertexAttribArray);
    GET_PROC(EndQuery);
    GET_PROC(Finish);
    GET_PROC(Flush);
    GET_PROC(FrontFace);
    GET_PROC(GenBuffers);
    GET_PROC(GenerateMipmap);
    GET_PROC(GetBufferParameteriv);
    GET_PROC(GetError);
    GET_PROC(GetIntegerv);
    GET_PROC(GetQueryObjectiv);
    GET_PROC(GetQueryObjectuiv);
    if (glVer >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) {
        GET_PROC(GetQueryObjecti64v);
        GET_PROC(GetQueryObjectui64v);
        GET_PROC(QueryCounter);
    } else if (extensions.has("GL_EXT_timer_query")) {
        GET_PROC_SUFFIX(GetQueryObjecti64v, EXT);
        GET_PROC_SUFFIX(GetQueryObjectui64v, EXT);
    }
    GET_PROC(GetQueryiv);
    GET_PROC(GetProgramInfoLog);
    GET_PROC(GetProgramiv);
    GET_PROC(GetShaderInfoLog);
    GET_PROC(GetShaderiv);
    GET_PROC(GetString);
    GET_PROC(GetStringi);
    GET_PROC(GetShaderPrecisionFormat);
    GET_PROC(GetTexLevelParameteriv);
    GET_PROC(GenQueries);
    GET_PROC(GenTextures);
    GET_PROC(GetUniformLocation);
    GET_PROC(IsTexture);
    GET_PROC(LineWidth);
    GET_PROC(LinkProgram);
    GET_PROC(MapBuffer);
    GET_PROC(PixelStorei);
    if (extensions.has("GL_EXT_raster_multisample")) {
        GET_PROC_SUFFIX(RasterSamples, EXT);
    }
    GET_PROC(ReadBuffer);
    GET_PROC(ReadPixels);
    GET_PROC(Scissor);
    GET_PROC(ShaderSource);
    GET_PROC(StencilFunc);
    GET_PROC(StencilFuncSeparate);
    GET_PROC(StencilMask);
    GET_PROC(StencilMaskSeparate);
    GET_PROC(StencilOp);
    GET_PROC(StencilOpSeparate);
    GET_PROC(TexImage2D);
    GET_PROC(TexParameteri);
    GET_PROC(TexParameteriv);
    if (glVer >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) {
        GET_PROC(TexStorage2D);
    } else if (extensions.has("GL_EXT_texture_storage")) {
        GET_PROC_SUFFIX(TexStorage2D, EXT);
    }
    GET_PROC(TexSubImage2D);
    if (glVer >= GR_GL_VER(4,5) || extensions.has("GL_ARB_texture_barrier")) {
        GET_PROC(TextureBarrier);
    } else if (extensions.has("GL_NV_texture_barrier")) {
        GET_PROC_SUFFIX(TextureBarrier, NV);
    }
    GET_PROC(Uniform1f);
    GET_PROC(Uniform1i);
    GET_PROC(Uniform1fv);
    GET_PROC(Uniform1iv);
    GET_PROC(Uniform2f);
    GET_PROC(Uniform2i);
    GET_PROC(Uniform2fv);
    GET_PROC(Uniform2iv);
    GET_PROC(Uniform3f);
    GET_PROC(Uniform3i);
    GET_PROC(Uniform3fv);
    GET_PROC(Uniform3iv);
    GET_PROC(Uniform4f);
    GET_PROC(Uniform4i);
    GET_PROC(Uniform4fv);
    GET_PROC(Uniform4iv);
    GET_PROC(UniformMatrix2fv);
    GET_PROC(UniformMatrix3fv);
    GET_PROC(UniformMatrix4fv);
    GET_PROC(UnmapBuffer);
    GET_PROC(UseProgram);
    GET_PROC(VertexAttrib1f);
    GET_PROC(VertexAttrib2fv);
    GET_PROC(VertexAttrib3fv);
    GET_PROC(VertexAttrib4fv);

    if (glVer >= GR_GL_VER(3,2) || extensions.has("GL_ARB_instanced_arrays")) {
        GET_PROC(VertexAttribDivisor);
    }

    if (glVer >= GR_GL_VER(3,0)) {
        GET_PROC(VertexAttribIPointer);
    }

    GET_PROC(VertexAttribPointer);
    GET_PROC(Viewport);
    GET_PROC(BindFragDataLocationIndexed);

    if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_vertex_array_object")) {
        // no ARB suffix for GL_ARB_vertex_array_object
        GET_PROC(BindVertexArray);
        GET_PROC(GenVertexArrays);
        GET_PROC(DeleteVertexArrays);
    } else if (extensions.has("GL_APPLE_vertex_array_object")) {
        GET_PROC_SUFFIX(BindVertexArray, APPLE);
        GET_PROC_SUFFIX(GenVertexArrays, APPLE);
        GET_PROC_SUFFIX(DeleteVertexArrays, APPLE);
    }

    if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_map_buffer_range")) {
        GET_PROC(MapBufferRange);
        GET_PROC(FlushMappedBufferRange);
    }

    // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since
    // GL_ARB_framebuffer_object doesn't use ARB suffix.)
    if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_framebuffer_object")) {
        GET_PROC(GenFramebuffers);
        GET_PROC(GetFramebufferAttachmentParameteriv);
        GET_PROC(GetRenderbufferParameteriv);
        GET_PROC(BindFramebuffer);
        GET_PROC(FramebufferTexture2D);
        GET_PROC(CheckFramebufferStatus);
        GET_PROC(DeleteFramebuffers);
        GET_PROC(RenderbufferStorage);
        GET_PROC(GenRenderbuffers);
        GET_PROC(DeleteRenderbuffers);
        GET_PROC(FramebufferRenderbuffer);
        GET_PROC(BindRenderbuffer);
        GET_PROC(RenderbufferStorageMultisample);
        GET_PROC(BlitFramebuffer);
    } else if (extensions.has("GL_EXT_framebuffer_object")) {
        GET_PROC_SUFFIX(GenFramebuffers, EXT);
        GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
        GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
        GET_PROC_SUFFIX(BindFramebuffer, EXT);
        GET_PROC_SUFFIX(FramebufferTexture2D, EXT);
        GET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
        GET_PROC_SUFFIX(DeleteFramebuffers, EXT);
        GET_PROC_SUFFIX(RenderbufferStorage, EXT);
        GET_PROC_SUFFIX(GenRenderbuffers, EXT);
        GET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
        GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
        GET_PROC_SUFFIX(BindRenderbuffer, EXT);
        if (extensions.has("GL_EXT_framebuffer_multisample")) {
            GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
        }
        if (extensions.has("GL_EXT_framebuffer_blit")) {
            GET_PROC_SUFFIX(BlitFramebuffer, EXT);
        }
    } else {
        // we must have FBOs
        delete interface;
        return nullptr;
    }

    if (extensions.has("GL_NV_path_rendering")) {
        GET_PROC_SUFFIX(MatrixLoadf, EXT);
        GET_PROC_SUFFIX(MatrixLoadIdentity, EXT);
        GET_PROC_SUFFIX(PathCommands, NV);
        GET_PROC_SUFFIX(PathParameteri, NV);
        GET_PROC_SUFFIX(PathParameterf, NV);
        GET_PROC_SUFFIX(GenPaths, NV);
        GET_PROC_SUFFIX(DeletePaths, NV);
        GET_PROC_SUFFIX(IsPath, NV);
        GET_PROC_SUFFIX(PathStencilFunc, NV);
        GET_PROC_SUFFIX(StencilFillPath, NV);
        GET_PROC_SUFFIX(StencilStrokePath, NV);
        GET_PROC_SUFFIX(StencilFillPathInstanced, NV);
        GET_PROC_SUFFIX(StencilStrokePathInstanced, NV);
        GET_PROC_SUFFIX(CoverFillPath, NV);
        GET_PROC_SUFFIX(CoverStrokePath, NV);
        GET_PROC_SUFFIX(CoverFillPathInstanced, NV);
        GET_PROC_SUFFIX(CoverStrokePathInstanced, NV);
        GET_PROC_SUFFIX(StencilThenCoverFillPath, NV);
        GET_PROC_SUFFIX(StencilThenCoverStrokePath, NV);
        GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, NV);
        GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, NV);
        GET_PROC_SUFFIX(ProgramPathFragmentInputGen, NV);
    }

    if (extensions.has("GL_NV_framebuffer_mixed_samples")) {
        GET_PROC_SUFFIX(CoverageModulation, NV);
    }

    if (extensions.has("GL_EXT_debug_marker")) {
        GET_PROC_SUFFIX(InsertEventMarker, EXT);
        GET_PROC_SUFFIX(PushGroupMarker, EXT);
        GET_PROC_SUFFIX(PopGroupMarker, EXT);
    }

    if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_ARB_invalidate_subdata")) {
        GET_PROC(InvalidateBufferData);
        GET_PROC(InvalidateBufferSubData);
        GET_PROC(InvalidateFramebuffer);
        GET_PROC(InvalidateSubFramebuffer);
        GET_PROC(InvalidateTexImage);
        GET_PROC(InvalidateTexSubImage);
    }

    if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_ARB_program_interface_query")) {
        GET_PROC(GetProgramResourceLocation);
    }

    if (glVer >= GR_GL_VER(4,3)) {
        // We don't use ARB_multi_draw_indirect because it does not support GL_DRAW_INDIRECT_BUFFER.
        GET_PROC(MultiDrawArraysIndirect);
        GET_PROC(MultiDrawElementsIndirect);
    }

    if (extensions.has("GL_NV_bindless_texture")) {
        GET_PROC_SUFFIX(GetTextureHandle, NV);
        GET_PROC_SUFFIX(GetTextureSamplerHandle, NV);
        GET_PROC_SUFFIX(MakeTextureHandleResident, NV);
        GET_PROC_SUFFIX(MakeTextureHandleNonResident, NV);
        GET_PROC_SUFFIX(GetImageHandle, NV);
        GET_PROC_SUFFIX(MakeImageHandleResident, NV);
        GET_PROC_SUFFIX(MakeImageHandleNonResident, NV);
        GET_PROC_SUFFIX(IsTextureHandleResident, NV);
        GET_PROC_SUFFIX(IsImageHandleResident, NV);
        GET_PROC_SUFFIX(UniformHandleui64, NV);
        GET_PROC_SUFFIX(UniformHandleui64v, NV);
        GET_PROC_SUFFIX(ProgramUniformHandleui64, NV);
        GET_PROC_SUFFIX(ProgramUniformHandleui64v, NV);
    }

    if (extensions.has("GL_EXT_direct_state_access")) {
        GET_PROC_SUFFIX(TextureParameteri, EXT);
        GET_PROC_SUFFIX(TextureParameteriv, EXT);
        GET_PROC_SUFFIX(TextureParameterf, EXT);
        GET_PROC_SUFFIX(TextureParameterfv, EXT);
        GET_PROC_SUFFIX(TextureImage1D, EXT);
        GET_PROC_SUFFIX(TextureImage2D, EXT);
        GET_PROC_SUFFIX(TextureSubImage1D, EXT);
        GET_PROC_SUFFIX(TextureSubImage2D, EXT);
        GET_PROC_SUFFIX(CopyTextureImage1D, EXT);
        GET_PROC_SUFFIX(CopyTextureImage2D, EXT);
        GET_PROC_SUFFIX(CopyTextureSubImage1D, EXT);
        GET_PROC_SUFFIX(CopyTextureSubImage2D, EXT);
        GET_PROC_SUFFIX(GetTextureImage, EXT);
        GET_PROC_SUFFIX(GetTextureParameterfv, EXT);
        GET_PROC_SUFFIX(GetTextureParameteriv, EXT);
        GET_PROC_SUFFIX(GetTextureLevelParameterfv, EXT);
        GET_PROC_SUFFIX(GetTextureLevelParameteriv, EXT);
        if (glVer >= GR_GL_VER(1,2)) {
            GET_PROC_SUFFIX(TextureImage3D, EXT);
            GET_PROC_SUFFIX(TextureSubImage3D, EXT);
            GET_PROC_SUFFIX(CopyTextureSubImage3D, EXT);
            GET_PROC_SUFFIX(CompressedTextureImage3D, EXT);
            GET_PROC_SUFFIX(CompressedTextureImage2D, EXT);
            GET_PROC_SUFFIX(CompressedTextureImage1D, EXT);
            GET_PROC_SUFFIX(CompressedTextureSubImage3D, EXT);
            GET_PROC_SUFFIX(CompressedTextureSubImage2D, EXT);
            GET_PROC_SUFFIX(CompressedTextureSubImage1D, EXT);
            GET_PROC_SUFFIX(GetCompressedTextureImage, EXT);
        }
        if (glVer >= GR_GL_VER(1,5)) {
            GET_PROC_SUFFIX(NamedBufferData, EXT);
            GET_PROC_SUFFIX(NamedBufferSubData, EXT);
            GET_PROC_SUFFIX(MapNamedBuffer, EXT);
            GET_PROC_SUFFIX(UnmapNamedBuffer, EXT);
            GET_PROC_SUFFIX(GetNamedBufferParameteriv, EXT);
            GET_PROC_SUFFIX(GetNamedBufferPointerv, EXT);
            GET_PROC_SUFFIX(GetNamedBufferSubData, EXT);
        }
        if (glVer >= GR_GL_VER(2,0)) {
            GET_PROC_SUFFIX(ProgramUniform1f, EXT);
            GET_PROC_SUFFIX(ProgramUniform2f, EXT);
            GET_PROC_SUFFIX(ProgramUniform3f, EXT);
            GET_PROC_SUFFIX(ProgramUniform4f, EXT);
            GET_PROC_SUFFIX(ProgramUniform1i, EXT);
            GET_PROC_SUFFIX(ProgramUniform2i, EXT);
            GET_PROC_SUFFIX(ProgramUniform3i, EXT);
            GET_PROC_SUFFIX(ProgramUniform4i, EXT);
            GET_PROC_SUFFIX(ProgramUniform1fv, EXT);
            GET_PROC_SUFFIX(ProgramUniform2fv, EXT);
            GET_PROC_SUFFIX(ProgramUniform3fv, EXT);
            GET_PROC_SUFFIX(ProgramUniform4fv, EXT);
            GET_PROC_SUFFIX(ProgramUniform1iv, EXT);
            GET_PROC_SUFFIX(ProgramUniform2iv, EXT);
            GET_PROC_SUFFIX(ProgramUniform3iv, EXT);
            GET_PROC_SUFFIX(ProgramUniform4iv, EXT);
            GET_PROC_SUFFIX(ProgramUniformMatrix2fv, EXT);
            GET_PROC_SUFFIX(ProgramUniformMatrix3fv, EXT);
            GET_PROC_SUFFIX(ProgramUniformMatrix4fv, EXT);
        }
        if (glVer >= GR_GL_VER(2,1)) {
            GET_PROC_SUFFIX(ProgramUniformMatrix2x3fv, EXT);
            GET_PROC_SUFFIX(ProgramUniformMatrix3x2fv, EXT);
            GET_PROC_SUFFIX(ProgramUniformMatrix2x4fv, EXT);
            GET_PROC_SUFFIX(ProgramUniformMatrix4x2fv, EXT);
            GET_PROC_SUFFIX(ProgramUniformMatrix3x4fv, EXT);
            GET_PROC_SUFFIX(ProgramUniformMatrix4x3fv, EXT);
        }
        if (glVer >= GR_GL_VER(3,0)) {
            GET_PROC_SUFFIX(NamedRenderbufferStorage, EXT);
            GET_PROC_SUFFIX(GetNamedRenderbufferParameteriv, EXT);
            GET_PROC_SUFFIX(NamedRenderbufferStorageMultisample, EXT);
            GET_PROC_SUFFIX(CheckNamedFramebufferStatus, EXT);
            GET_PROC_SUFFIX(NamedFramebufferTexture1D, EXT);
            GET_PROC_SUFFIX(NamedFramebufferTexture2D, EXT);
            GET_PROC_SUFFIX(NamedFramebufferTexture3D, EXT);
            GET_PROC_SUFFIX(NamedFramebufferRenderbuffer, EXT);
            GET_PROC_SUFFIX(GetNamedFramebufferAttachmentParameteriv, EXT);
            GET_PROC_SUFFIX(GenerateTextureMipmap, EXT);
            GET_PROC_SUFFIX(FramebufferDrawBuffer, EXT);
            GET_PROC_SUFFIX(FramebufferDrawBuffers, EXT);
            GET_PROC_SUFFIX(FramebufferReadBuffer, EXT);
            GET_PROC_SUFFIX(GetFramebufferParameteriv, EXT);
            GET_PROC_SUFFIX(NamedCopyBufferSubData, EXT);
            GET_PROC_SUFFIX(VertexArrayVertexOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayColorOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayEdgeFlagOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayIndexOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayNormalOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayTexCoordOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayMultiTexCoordOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayFogCoordOffset, EXT);
            GET_PROC_SUFFIX(VertexArraySecondaryColorOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayVertexAttribOffset, EXT);
            GET_PROC_SUFFIX(VertexArrayVertexAttribIOffset, EXT);
            GET_PROC_SUFFIX(EnableVertexArray, EXT);
            GET_PROC_SUFFIX(DisableVertexArray, EXT);
            GET_PROC_SUFFIX(EnableVertexArrayAttrib, EXT);
            GET_PROC_SUFFIX(DisableVertexArrayAttrib, EXT);
            GET_PROC_SUFFIX(GetVertexArrayIntegerv, EXT);
            GET_PROC_SUFFIX(GetVertexArrayPointerv, EXT);
            GET_PROC_SUFFIX(GetVertexArrayIntegeri_v, EXT);
            GET_PROC_SUFFIX(GetVertexArrayPointeri_v, EXT);
            GET_PROC_SUFFIX(MapNamedBufferRange, EXT);
            GET_PROC_SUFFIX(FlushMappedNamedBufferRange, EXT);
        }
    }

    if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_KHR_debug")) {
        // KHR_debug defines these methods to have no suffix in an OpenGL (not ES) context.
        GET_PROC(DebugMessageControl);
        GET_PROC(DebugMessageInsert);
        GET_PROC(DebugMessageCallback);
        GET_PROC(GetDebugMessageLog);
        GET_PROC(PushDebugGroup);
        GET_PROC(PopDebugGroup);
        GET_PROC(ObjectLabel);
    }

    if (extensions.has("EGL_KHR_image") || extensions.has("EGL_KHR_image_base")) {
        GET_EGL_PROC_SUFFIX(CreateImage, KHR);
        GET_EGL_PROC_SUFFIX(DestroyImage, KHR);
    }

    interface->fStandard = kGL_GrGLStandard;
    interface->fExtensions.swap(&extensions);

    return interface;
}
bool GrGLInterface::validate(GrGLBinding binding) const {

    // kNone must be 0 so that the check we're about to do can never succeed if
    // binding == kNone.
    GR_STATIC_ASSERT(kNone_GrGLBinding == 0);

    if (0 == (binding & fBindingsExported)) {
        return false;
    }

    // functions that are always required
    if (NULL == fActiveTexture ||
            NULL == fAttachShader ||
            NULL == fBindAttribLocation ||
            NULL == fBindBuffer ||
            NULL == fBindTexture ||
            NULL == fBlendFunc ||
            NULL == fBufferData ||
            NULL == fBufferSubData ||
            NULL == fClear ||
            NULL == fClearColor ||
            NULL == fClearStencil ||
            NULL == fColorMask ||
            NULL == fCompileShader ||
            NULL == fCreateProgram ||
            NULL == fCreateShader ||
            NULL == fCullFace ||
            NULL == fDeleteBuffers ||
            NULL == fDeleteProgram ||
            NULL == fDeleteShader ||
            NULL == fDeleteTextures ||
            NULL == fDepthMask ||
            NULL == fDisable ||
            NULL == fDisableVertexAttribArray ||
            NULL == fDrawArrays ||
            NULL == fDrawElements ||
            NULL == fEnable ||
            NULL == fEnableVertexAttribArray ||
            NULL == fFrontFace ||
            NULL == fGenBuffers ||
            NULL == fGenTextures ||
            NULL == fGetBufferParameteriv ||
            NULL == fGetError ||
            NULL == fGetIntegerv ||
            NULL == fGetProgramInfoLog ||
            NULL == fGetProgramiv ||
            NULL == fGetShaderInfoLog ||
            NULL == fGetShaderiv ||
            NULL == fGetString ||
            NULL == fGetUniformLocation ||
            NULL == fLinkProgram ||
            NULL == fPixelStorei ||
            NULL == fReadPixels ||
            NULL == fScissor ||
            NULL == fShaderSource ||
            NULL == fStencilFunc ||
            NULL == fStencilMask ||
            NULL == fStencilOp ||
            NULL == fTexImage2D ||
            NULL == fTexParameteri ||
            NULL == fTexSubImage2D ||
            NULL == fUniform1f ||
            NULL == fUniform1i ||
            NULL == fUniform1fv ||
            NULL == fUniform1iv ||
            NULL == fUniform2f ||
            NULL == fUniform2i ||
            NULL == fUniform2fv ||
            NULL == fUniform2iv ||
            NULL == fUniform3f ||
            NULL == fUniform3i ||
            NULL == fUniform3fv ||
            NULL == fUniform3iv ||
            NULL == fUniform4f ||
            NULL == fUniform4i ||
            NULL == fUniform4fv ||
            NULL == fUniform4iv ||
            NULL == fUniformMatrix2fv ||
            NULL == fUniformMatrix3fv ||
            NULL == fUniformMatrix4fv ||
            NULL == fUseProgram ||
            NULL == fVertexAttrib4fv ||
            NULL == fVertexAttribPointer ||
            NULL == fViewport ||
            NULL == fBindFramebuffer ||
            NULL == fBindRenderbuffer ||
            NULL == fCheckFramebufferStatus ||
            NULL == fDeleteFramebuffers ||
            NULL == fDeleteRenderbuffers ||
            NULL == fFinish ||
            NULL == fFlush ||
            NULL == fFramebufferRenderbuffer ||
            NULL == fFramebufferTexture2D ||
            NULL == fGetFramebufferAttachmentParameteriv ||
            NULL == fGetRenderbufferParameteriv ||
            NULL == fGenFramebuffers ||
            NULL == fGenRenderbuffers ||
            NULL == fRenderbufferStorage) {
        return false;
    }

    const char* ext;
    GrGLVersion glVer = GrGLGetVersion(this);
    ext = (const char*)fGetString(GR_GL_EXTENSIONS);

    // Now check that baseline ES/Desktop fns not covered above are present
    // and that we have fn pointers for any advertised extensions that we will
    // try to use.

    // these functions are part of ES2, we assume they are available
    // On the desktop we assume they are available if the extension
    // is present or GL version is high enough.
    if (kES2_GrGLBinding == binding) {
        if (NULL == fBlendColor ||
                NULL == fStencilFuncSeparate ||
                NULL == fStencilMaskSeparate ||
                NULL == fStencilOpSeparate) {
            return false;
        }
    } else if (kDesktop_GrGLBinding == binding) {
        if (glVer >= GR_GL_VER(2,0)) {
            if (NULL == fStencilFuncSeparate ||
                    NULL == fStencilMaskSeparate ||
                    NULL == fStencilOpSeparate) {
                return false;
            }
        }
        if (glVer >= GR_GL_VER(3,0) && NULL == fBindFragDataLocation) {
            return false;
        }
        if (glVer >= GR_GL_VER(2,0) ||
                GrGLHasExtensionFromString("GL_ARB_draw_buffers", ext)) {
            if (NULL == fDrawBuffers) {
                return false;
            }
        }
        if (glVer >= GR_GL_VER(1,4) ||
                GrGLHasExtensionFromString("GL_EXT_blend_color", ext)) {
            if (NULL == fBlendColor) {
                return false;
            }
        }
        if (glVer >= GR_GL_VER(1,5) ||
                GrGLHasExtensionFromString("GL_ARB_occlusion_query", ext)) {
            if (NULL == fGenQueries ||
                    NULL == fDeleteQueries ||
                    NULL == fBeginQuery ||
                    NULL == fEndQuery ||
                    NULL == fGetQueryiv ||
                    NULL == fGetQueryObjectiv ||
                    NULL == fGetQueryObjectuiv) {
                return false;
            }
        }
        if (glVer >= GR_GL_VER(3,3) ||
                GrGLHasExtensionFromString("GL_ARB_timer_query", ext) ||
                GrGLHasExtensionFromString("GL_EXT_timer_query", ext)) {
            if (NULL == fGetQueryObjecti64v ||
                    NULL == fGetQueryObjectui64v) {
                return false;
            }
        }
        if (glVer >= GR_GL_VER(3,3) ||
                GrGLHasExtensionFromString("GL_ARB_timer_query", ext)) {
            if (NULL == fQueryCounter) {
                return false;
            }
        }
    }

    // optional function on desktop before 1.3
    if (kDesktop_GrGLBinding != binding ||
            (glVer >= GR_GL_VER(1,3) ||
             GrGLHasExtensionFromString("GL_ARB_texture_compression", ext))) {
        if (NULL == fCompressedTexImage2D) {
            return false;
        }
    }

    // part of desktop GL, but not ES
    if (kDesktop_GrGLBinding == binding &&
            (NULL == fLineWidth ||
             NULL == fGetTexLevelParameteriv ||
             NULL == fDrawBuffer ||
             NULL == fReadBuffer)) {
        return false;
    }

    // GL_EXT_texture_storage is part of desktop 4.2
    // There is a desktop ARB extension and an ES+desktop EXT extension
    if (kDesktop_GrGLBinding == binding) {
        if (glVer >= GR_GL_VER(4,2) ||
                GrGLHasExtensionFromString("GL_ARB_texture_storage", ext) ||
                GrGLHasExtensionFromString("GL_EXT_texture_storage", ext)) {
            if (NULL == fTexStorage2D) {
                return false;
            }
        }
    } else if (GrGLHasExtensionFromString("GL_EXT_texture_storage", ext)) {
        if (NULL == fTexStorage2D) {
            return false;
        }
    }

    // FBO MSAA
    if (kDesktop_GrGLBinding == binding) {
        // GL 3.0 and the ARB extension have multisample + blit
        if (glVer >= GR_GL_VER(3,0) || GrGLHasExtensionFromString("GL_ARB_framebuffer_object", ext)) {
            if (NULL == fRenderbufferStorageMultisample ||
                    NULL == fBlitFramebuffer) {
                return false;
            }
        } else {
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_blit", ext) &&
                    NULL == fBlitFramebuffer) {
                return false;
            }
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_multisample", ext) &&
                    NULL == fRenderbufferStorageMultisample) {
                return false;
            }
        }
    } else {
        if (GrGLHasExtensionFromString("GL_CHROMIUM_framebuffer_multisample", ext)) {
            if (NULL == fRenderbufferStorageMultisample ||
                    NULL == fBlitFramebuffer) {
                return false;
            }
        }
        if (GrGLHasExtensionFromString("GL_APPLE_framebuffer_multisample", ext)) {
            if (NULL == fRenderbufferStorageMultisample ||
                    NULL == fResolveMultisampleFramebuffer) {
                return false;
            }
        }
    }

    // On ES buffer mapping is an extension. On Desktop
    // buffer mapping was part of original VBO extension
    // which we require.
    if (kDesktop_GrGLBinding == binding ||
            GrGLHasExtensionFromString("GL_OES_mapbuffer", ext)) {
        if (NULL == fMapBuffer ||
                NULL == fUnmapBuffer) {
            return false;
        }
    }

    // Dual source blending
    if (kDesktop_GrGLBinding == binding &&
            (glVer >= GR_GL_VER(3,3) ||
             GrGLHasExtensionFromString("GL_ARB_blend_func_extended", ext))) {
        if (NULL == fBindFragDataLocationIndexed) {
            return false;
        }
    }

    return true;
}
示例#26
0
const GrGLInterface* GrGLAssembleGLESInterface(void* ctx, GrGLGetProc get) {
    GET_PROC_LOCAL(GetString);
    if (nullptr == GetString) {
        return nullptr;
    }

    const char* verStr = reinterpret_cast<const char*>(GetString(GR_GL_VERSION));
    GrGLVersion version = GrGLGetVersionFromString(verStr);

    if (version < GR_GL_VER(2,0)) {
        return nullptr;
    }

    GET_PROC_LOCAL(GetIntegerv);
    GET_PROC_LOCAL(GetStringi);
    GrEGLQueryStringProc queryString;
    GrEGLDisplay display;
    get_egl_query_and_display(&queryString, &display, ctx, get);
    GrGLExtensions extensions;
    if (!extensions.init(kGLES_GrGLStandard, GetString, GetStringi, GetIntegerv, queryString,
                         display)) {
        return nullptr;
    }

    GrGLInterface* interface = new GrGLInterface;
    GrGLInterface::Functions* functions = &interface->fFunctions;

    GET_PROC(ActiveTexture);
    GET_PROC(AttachShader);
    GET_PROC(BindAttribLocation);
    GET_PROC(BindBuffer);
    GET_PROC(BindTexture);
    GET_PROC_SUFFIX(BindVertexArray, OES);

    if (version >= GR_GL_VER(3,0) && extensions.has("GL_EXT_blend_func_extended")) {
        GET_PROC_SUFFIX(BindFragDataLocation, EXT);
        GET_PROC_SUFFIX(BindFragDataLocationIndexed, EXT);
    }

    if (extensions.has("GL_KHR_blend_equation_advanced")) {
        GET_PROC_SUFFIX(BlendBarrier, KHR);
    } else if (extensions.has("GL_NV_blend_equation_advanced")) {
        GET_PROC_SUFFIX(BlendBarrier, NV);
    }

    GET_PROC(BlendColor);
    GET_PROC(BlendEquation);
    GET_PROC(BlendFunc);
    GET_PROC(BufferData);
    GET_PROC(BufferSubData);
    GET_PROC(Clear);
    GET_PROC(ClearColor);
    GET_PROC(ClearStencil);
    GET_PROC(ColorMask);
    GET_PROC(CompileShader);
    GET_PROC(CompressedTexImage2D);
    GET_PROC(CompressedTexSubImage2D);
    GET_PROC(CopyTexSubImage2D);
    GET_PROC(CreateProgram);
    GET_PROC(CreateShader);
    GET_PROC(CullFace);
    GET_PROC(DeleteBuffers);
    GET_PROC(DeleteProgram);
    GET_PROC(DeleteShader);
    GET_PROC(DeleteTextures);
    GET_PROC_SUFFIX(DeleteVertexArrays, OES);
    GET_PROC(DepthMask);
    GET_PROC(Disable);
    GET_PROC(DisableVertexAttribArray);
    GET_PROC(DrawArrays);

    if (version >= GR_GL_VER(3,0)) {
        GET_PROC(DrawArraysInstanced);
        GET_PROC(DrawElementsInstanced);
    } else if (extensions.has("GL_EXT_draw_instanced")) {
        GET_PROC_SUFFIX(DrawArraysInstanced, EXT);
        GET_PROC_SUFFIX(DrawElementsInstanced, EXT);
    }

    if (version >= GR_GL_VER(3,1)) {
        GET_PROC(DrawArraysIndirect);
        GET_PROC(DrawElementsIndirect);
    }

    GET_PROC(DrawElements);
    GET_PROC(Enable);
    GET_PROC(EnableVertexAttribArray);
    GET_PROC(Finish);
    GET_PROC(Flush);
    GET_PROC(FrontFace);
    GET_PROC(GenBuffers);
    GET_PROC(GenerateMipmap);
    GET_PROC(GenTextures);
    GET_PROC_SUFFIX(GenVertexArrays, OES);
    GET_PROC(GetBufferParameteriv);
    GET_PROC(GetError);
    GET_PROC(GetIntegerv);
    GET_PROC(GetProgramInfoLog);
    GET_PROC(GetProgramiv);
    GET_PROC(GetShaderInfoLog);
    GET_PROC(GetShaderPrecisionFormat);
    GET_PROC(GetShaderiv);
    GET_PROC(GetString);
    GET_PROC(GetStringi);
    GET_PROC(GetUniformLocation);
    GET_PROC(IsTexture);
    GET_PROC(LineWidth);
    GET_PROC(LinkProgram);
    GET_PROC(PixelStorei);

    if (extensions.has("GL_EXT_raster_multisample")) {
        GET_PROC_SUFFIX(RasterSamples, EXT);
    }

    GET_PROC(ReadPixels);
    GET_PROC(Scissor);
    GET_PROC(ShaderSource);
    GET_PROC(StencilFunc);
    GET_PROC(StencilFuncSeparate);
    GET_PROC(StencilMask);
    GET_PROC(StencilMaskSeparate);
    GET_PROC(StencilOp);
    GET_PROC(StencilOpSeparate);
    GET_PROC(TexImage2D);
    GET_PROC(TexParameteri);
    GET_PROC(TexParameteriv);
    GET_PROC(TexSubImage2D);

    if (version >= GR_GL_VER(3,0)) {
        GET_PROC(TexStorage2D);
    } else {
        GET_PROC_SUFFIX(TexStorage2D, EXT);
    }

    if (extensions.has("GL_NV_texture_barrier")) {
        GET_PROC_SUFFIX(TextureBarrier, NV);
    }

    GET_PROC_SUFFIX(DiscardFramebuffer, EXT);
    GET_PROC(Uniform1f);
    GET_PROC(Uniform1i);
    GET_PROC(Uniform1fv);
    GET_PROC(Uniform1iv);
    GET_PROC(Uniform2f);
    GET_PROC(Uniform2i);
    GET_PROC(Uniform2fv);
    GET_PROC(Uniform2iv);
    GET_PROC(Uniform3f);
    GET_PROC(Uniform3i);
    GET_PROC(Uniform3fv);
    GET_PROC(Uniform3iv);
    GET_PROC(Uniform4f);
    GET_PROC(Uniform4i);
    GET_PROC(Uniform4fv);
    GET_PROC(Uniform4iv);
    GET_PROC(UniformMatrix2fv);
    GET_PROC(UniformMatrix3fv);
    GET_PROC(UniformMatrix4fv);
    GET_PROC(UseProgram);
    GET_PROC(VertexAttrib1f);
    GET_PROC(VertexAttrib2fv);
    GET_PROC(VertexAttrib3fv);
    GET_PROC(VertexAttrib4fv);

    if (version >= GR_GL_VER(3,0)) {
        GET_PROC(VertexAttribDivisor);
    } else if (extensions.has("GL_EXT_instanced_arrays")) {
        GET_PROC_SUFFIX(VertexAttribDivisor, EXT);
    }

    if (version >= GR_GL_VER(3,0)) {
        GET_PROC(VertexAttribIPointer);
    }

    GET_PROC(VertexAttribPointer);
    GET_PROC(Viewport);
    GET_PROC(BindFramebuffer);
    GET_PROC(BindRenderbuffer);
    GET_PROC(CheckFramebufferStatus);
    GET_PROC(DeleteFramebuffers);
    GET_PROC(DeleteRenderbuffers);
    GET_PROC(FramebufferRenderbuffer);
    GET_PROC(FramebufferTexture2D);

    if (extensions.has("GL_CHROMIUM_framebuffer_multisample")) {
        GET_PROC_SUFFIX(RenderbufferStorageMultisample, CHROMIUM);
        GET_PROC_SUFFIX(BlitFramebuffer, CHROMIUM);
    } else if (version >= GR_GL_VER(3,0)) {
        GET_PROC(RenderbufferStorageMultisample);
        GET_PROC(BlitFramebuffer);
    }

    if (extensions.has("GL_CHROMIUM_map_sub")) {
        GET_PROC_SUFFIX(MapBufferSubData, CHROMIUM);
        GET_PROC_SUFFIX(MapTexSubImage2D, CHROMIUM);
        GET_PROC_SUFFIX(UnmapBufferSubData, CHROMIUM);
        GET_PROC_SUFFIX(UnmapTexSubImage2D, CHROMIUM);
    }

    if (extensions.has("GL_EXT_multisampled_render_to_texture")) {
        GET_PROC_SUFFIX(FramebufferTexture2DMultisample, EXT);
        functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleEXT");
    } else if (extensions.has("GL_IMG_multisampled_render_to_texture")) {
        GET_PROC_SUFFIX(FramebufferTexture2DMultisample, IMG);
        functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleIMG");
    } else if (extensions.has("GL_APPLE_framebuffer_multisample")) {
        functions->fRenderbufferStorageMultisampleES2APPLE = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleAPPLE");
        GET_PROC_SUFFIX(ResolveMultisampleFramebuffer, APPLE);
    }

    GET_PROC(GenFramebuffers);
    GET_PROC(GenRenderbuffers);
    GET_PROC(GetFramebufferAttachmentParameteriv);
    GET_PROC(GetRenderbufferParameteriv);
    GET_PROC(RenderbufferStorage);

    GET_PROC_SUFFIX(MapBuffer, OES);
    GET_PROC_SUFFIX(UnmapBuffer, OES);

    if (version >= GR_GL_VER(3,0)) {
        GET_PROC(MapBufferRange);
        GET_PROC(FlushMappedBufferRange);
    } else if (extensions.has("GL_EXT_map_buffer_range")) {
        GET_PROC_SUFFIX(MapBufferRange, EXT);
        GET_PROC_SUFFIX(FlushMappedBufferRange, EXT);
    }

    if (extensions.has("GL_EXT_debug_marker")) {
        GET_PROC(InsertEventMarker);
        GET_PROC(PushGroupMarker);
        GET_PROC(PopGroupMarker);
        // The below check is here because a device has been found that has the extension string but
        // returns nullptr from the eglGetProcAddress for the functions
        if (nullptr == functions->fInsertEventMarker ||
            nullptr == functions->fPushGroupMarker ||
            nullptr == functions->fPopGroupMarker) {
            extensions.remove("GL_EXT_debug_marker");
        }
    }

    GET_PROC(InvalidateFramebuffer);
    GET_PROC(InvalidateSubFramebuffer);
    GET_PROC(InvalidateBufferData);
    GET_PROC(InvalidateBufferSubData);
    GET_PROC(InvalidateTexImage);
    GET_PROC(InvalidateTexSubImage);

    if (version >= GR_GL_VER(3,1)) {
        GET_PROC(GetProgramResourceLocation);
    }

    if (extensions.has("GL_NV_path_rendering")) {
        GET_PROC_SUFFIX(MatrixLoadf, EXT);
        GET_PROC_SUFFIX(MatrixLoadIdentity, EXT);
        GET_PROC_SUFFIX(PathCommands, NV);
        GET_PROC_SUFFIX(PathParameteri, NV);
        GET_PROC_SUFFIX(PathParameterf, NV);
        GET_PROC_SUFFIX(GenPaths, NV);
        GET_PROC_SUFFIX(DeletePaths, NV);
        GET_PROC_SUFFIX(IsPath, NV);
        GET_PROC_SUFFIX(PathStencilFunc, NV);
        GET_PROC_SUFFIX(StencilFillPath, NV);
        GET_PROC_SUFFIX(StencilStrokePath, NV);
        GET_PROC_SUFFIX(StencilFillPathInstanced, NV);
        GET_PROC_SUFFIX(StencilStrokePathInstanced, NV);
        GET_PROC_SUFFIX(CoverFillPath, NV);
        GET_PROC_SUFFIX(CoverStrokePath, NV);
        GET_PROC_SUFFIX(CoverFillPathInstanced, NV);
        GET_PROC_SUFFIX(CoverStrokePathInstanced, NV);
        GET_PROC_SUFFIX(StencilThenCoverFillPath, NV);
        GET_PROC_SUFFIX(StencilThenCoverStrokePath, NV);
        GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, NV);
        GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, NV);
        GET_PROC_SUFFIX(ProgramPathFragmentInputGen, NV);
    }

    if (extensions.has("GL_CHROMIUM_path_rendering")) {
        GET_PROC_SUFFIX(MatrixLoadf, CHROMIUM);
        GET_PROC_SUFFIX(MatrixLoadIdentity, CHROMIUM);
        GET_PROC_SUFFIX(PathCommands, CHROMIUM);
        GET_PROC_SUFFIX(PathParameteri, CHROMIUM);
        GET_PROC_SUFFIX(PathParameterf, CHROMIUM);
        GET_PROC_SUFFIX(GenPaths, CHROMIUM);
        GET_PROC_SUFFIX(DeletePaths, CHROMIUM);
        GET_PROC_SUFFIX(IsPath, CHROMIUM);
        GET_PROC_SUFFIX(PathStencilFunc, CHROMIUM);
        GET_PROC_SUFFIX(StencilFillPath, CHROMIUM);
        GET_PROC_SUFFIX(StencilStrokePath, CHROMIUM);
        GET_PROC_SUFFIX(StencilFillPathInstanced, CHROMIUM);
        GET_PROC_SUFFIX(StencilStrokePathInstanced, CHROMIUM);
        GET_PROC_SUFFIX(CoverFillPath, CHROMIUM);
        GET_PROC_SUFFIX(CoverStrokePath, CHROMIUM);
        GET_PROC_SUFFIX(CoverFillPathInstanced, CHROMIUM);
        GET_PROC_SUFFIX(CoverStrokePathInstanced, CHROMIUM);
        GET_PROC_SUFFIX(StencilThenCoverFillPath, CHROMIUM);
        GET_PROC_SUFFIX(StencilThenCoverStrokePath, CHROMIUM);
        GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, CHROMIUM);
        GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, CHROMIUM);
        GET_PROC_SUFFIX(ProgramPathFragmentInputGen, CHROMIUM);
        // GL_CHROMIUM_path_rendering additions:
        GET_PROC_SUFFIX(BindFragmentInputLocation, CHROMIUM);
    }

    if (extensions.has("GL_NV_framebuffer_mixed_samples")) {
        GET_PROC_SUFFIX(CoverageModulation, NV);
    }
    if (extensions.has("GL_CHROMIUM_framebuffer_mixed_samples")) {
        GET_PROC_SUFFIX(CoverageModulation, CHROMIUM);
    }

    if (extensions.has("GL_EXT_multi_draw_indirect")) {
        GET_PROC_SUFFIX(MultiDrawArraysIndirect, EXT);
        GET_PROC_SUFFIX(MultiDrawElementsIndirect, EXT);
    }

    if (extensions.has("GL_NV_bindless_texture")) {
        GET_PROC_SUFFIX(GetTextureHandle, NV);
        GET_PROC_SUFFIX(GetTextureSamplerHandle, NV);
        GET_PROC_SUFFIX(MakeTextureHandleResident, NV);
        GET_PROC_SUFFIX(MakeTextureHandleNonResident, NV);
        GET_PROC_SUFFIX(GetImageHandle, NV);
        GET_PROC_SUFFIX(MakeImageHandleResident, NV);
        GET_PROC_SUFFIX(MakeImageHandleNonResident, NV);
        GET_PROC_SUFFIX(IsTextureHandleResident, NV);
        GET_PROC_SUFFIX(IsImageHandleResident, NV);
        GET_PROC_SUFFIX(UniformHandleui64, NV);
        GET_PROC_SUFFIX(UniformHandleui64v, NV);
        GET_PROC_SUFFIX(ProgramUniformHandleui64, NV);
        GET_PROC_SUFFIX(ProgramUniformHandleui64v, NV);
    }

    if (extensions.has("GL_KHR_debug")) {
        GET_PROC_SUFFIX(DebugMessageControl, KHR);
        GET_PROC_SUFFIX(DebugMessageInsert, KHR);
        GET_PROC_SUFFIX(DebugMessageCallback, KHR);
        GET_PROC_SUFFIX(GetDebugMessageLog, KHR);
        GET_PROC_SUFFIX(PushDebugGroup, KHR);
        GET_PROC_SUFFIX(PopDebugGroup, KHR);
        GET_PROC_SUFFIX(ObjectLabel, KHR);
        // In general we have a policy against removing extension strings when the driver does
        // not provide function pointers for an advertised extension. However, because there is a
        // known device that advertises GL_KHR_debug but fails to provide the functions and this is
        // a debugging- only extension we've made an exception. This also can happen when using
        // APITRACE.
        if (!interface->fFunctions.fDebugMessageControl) {
            extensions.remove("GL_KHR_debug");
        }
    }

    if (extensions.has("GL_CHROMIUM_bind_uniform_location")) {
        GET_PROC_SUFFIX(BindUniformLocation, CHROMIUM);
    }

    if (extensions.has("EGL_KHR_image") || extensions.has("EGL_KHR_image_base")) {
        GET_EGL_PROC_SUFFIX(CreateImage, KHR);
        GET_EGL_PROC_SUFFIX(DestroyImage, KHR);
    }

    interface->fStandard = kGLES_GrGLStandard;
    interface->fExtensions.swap(&extensions);

    return interface;
}
示例#27
0
const GrGLInterface* GrGLCreateMesaInterface() {
    if (NULL != OSMesaGetCurrentContext()) {
        GrGLGetStringProc getString = (GrGLGetStringProc) OSMesaGetProcAddress("glGetString");
        const char* versionString = (const char*) getString(GL_VERSION);
        const char* extString = (const char*) getString(GL_EXTENSIONS);
        GrGLVersion glVer = GrGLGetVersionFromString(versionString);

        if (glVer < GR_GL_VER(1,5)) {
            // We must have array and element_array buffer objects.
            return NULL;
        }
        GrGLInterface* interface = new GrGLInterface();

        GR_GL_GET_PROC(ActiveTexture);
        GR_GL_GET_PROC(BeginQuery);
        GR_GL_GET_PROC(AttachShader);
        GR_GL_GET_PROC(BindAttribLocation);
        GR_GL_GET_PROC(BindBuffer);
        GR_GL_GET_PROC(BindFragDataLocation);
        GR_GL_GET_PROC(BindTexture);
        GR_GL_GET_PROC(BlendColor);
        GR_GL_GET_PROC(BlendFunc);
        GR_GL_GET_PROC(BufferData);
        GR_GL_GET_PROC(BufferSubData);
        GR_GL_GET_PROC(Clear);
        GR_GL_GET_PROC(ClearColor);
        GR_GL_GET_PROC(ClearStencil);
        GR_GL_GET_PROC(ColorMask);
        GR_GL_GET_PROC(CompileShader);
        GR_GL_GET_PROC(CompressedTexImage2D);
        GR_GL_GET_PROC(CreateProgram);
        GR_GL_GET_PROC(CreateShader);
        GR_GL_GET_PROC(CullFace);
        GR_GL_GET_PROC(DeleteBuffers);
        GR_GL_GET_PROC(DeleteProgram);
        GR_GL_GET_PROC(DeleteQueries);
        GR_GL_GET_PROC(DeleteShader);
        GR_GL_GET_PROC(DeleteTextures);
        GR_GL_GET_PROC(DepthMask);
        GR_GL_GET_PROC(Disable);
        GR_GL_GET_PROC(DisableVertexAttribArray);
        GR_GL_GET_PROC(DrawArrays);
        GR_GL_GET_PROC(DrawBuffer);
        GR_GL_GET_PROC(DrawBuffers);
        GR_GL_GET_PROC(DrawElements);
        GR_GL_GET_PROC(Enable);
        GR_GL_GET_PROC(EnableVertexAttribArray);
        GR_GL_GET_PROC(EndQuery);
        GR_GL_GET_PROC(Finish);
        GR_GL_GET_PROC(Flush);
        GR_GL_GET_PROC(FrontFace);
        GR_GL_GET_PROC(GenBuffers);
        GR_GL_GET_PROC(GenQueries);
        GR_GL_GET_PROC(GetBufferParameteriv);
        GR_GL_GET_PROC(GetError);
        GR_GL_GET_PROC(GetIntegerv);
        GR_GL_GET_PROC(GetProgramInfoLog);
        GR_GL_GET_PROC(GetProgramiv);
        if (glVer >= GR_GL_VER(3,3) ||
            GrGLHasExtensionFromString("GL_ARB_timer_query", extString)) {
            GR_GL_GET_PROC(GetQueryObjecti64v);
            GR_GL_GET_PROC(GetQueryObjectui64v)
            GR_GL_GET_PROC(QueryCounter);
        } else if (GrGLHasExtensionFromString("GL_EXT_timer_query", extString)) {
            GR_GL_GET_PROC_SUFFIX(GetQueryObjecti64v, EXT);
            GR_GL_GET_PROC_SUFFIX(GetQueryObjectui64v, EXT);
        }
        GR_GL_GET_PROC(GetQueryObjectiv);
        GR_GL_GET_PROC(GetQueryObjectuiv);
        GR_GL_GET_PROC(GetQueryiv);
        GR_GL_GET_PROC(GetShaderInfoLog);
        GR_GL_GET_PROC(GetShaderiv);
        GR_GL_GET_PROC(GetString);
        GR_GL_GET_PROC(GetTexLevelParameteriv);
        GR_GL_GET_PROC(GenTextures);
        GR_GL_GET_PROC(GetUniformLocation);
        GR_GL_GET_PROC(LineWidth);
        GR_GL_GET_PROC(LinkProgram);
        GR_GL_GET_PROC(MapBuffer);
        GR_GL_GET_PROC(PixelStorei);
        GR_GL_GET_PROC(ReadBuffer);
        GR_GL_GET_PROC(ReadPixels);
        GR_GL_GET_PROC(Scissor);
        GR_GL_GET_PROC(ShaderSource);
        GR_GL_GET_PROC(StencilFunc);
        GR_GL_GET_PROC(StencilFuncSeparate);
        GR_GL_GET_PROC(StencilMask);
        GR_GL_GET_PROC(StencilMaskSeparate);
        GR_GL_GET_PROC(StencilOp);
        GR_GL_GET_PROC(StencilOpSeparate);
        GR_GL_GET_PROC(TexImage2D)
        GR_GL_GET_PROC(TexParameteri);
        GR_GL_GET_PROC(TexStorage2D);
        if (NULL == interface->fTexStorage2D) {
            GR_GL_GET_PROC_SUFFIX(TexStorage2D, EXT);
        }
        GR_GL_GET_PROC(TexSubImage2D);
        GR_GL_GET_PROC(Uniform1f);
        GR_GL_GET_PROC(Uniform1i);
        GR_GL_GET_PROC(Uniform1fv);
        GR_GL_GET_PROC(Uniform1iv);
        GR_GL_GET_PROC(Uniform2f);
        GR_GL_GET_PROC(Uniform2i);
        GR_GL_GET_PROC(Uniform2fv);
        GR_GL_GET_PROC(Uniform2iv);
        GR_GL_GET_PROC(Uniform3f);
        GR_GL_GET_PROC(Uniform3i);
        GR_GL_GET_PROC(Uniform3fv);
        GR_GL_GET_PROC(Uniform3iv);
        GR_GL_GET_PROC(Uniform4f);
        GR_GL_GET_PROC(Uniform4i);
        GR_GL_GET_PROC(Uniform4fv);
        GR_GL_GET_PROC(Uniform4iv);
        GR_GL_GET_PROC(UniformMatrix2fv);
        GR_GL_GET_PROC(UniformMatrix3fv);
        GR_GL_GET_PROC(UniformMatrix4fv);
        GR_GL_GET_PROC(UnmapBuffer);
        GR_GL_GET_PROC(UseProgram);
        GR_GL_GET_PROC(VertexAttrib4fv);
        GR_GL_GET_PROC(VertexAttribPointer);
        GR_GL_GET_PROC(Viewport);

        // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since
        // GL_ARB_framebuffer_object doesn't use ARB suffix.)
        if (glVer >= GR_GL_VER(3,0) ||
            GrGLHasExtensionFromString("GL_ARB_framebuffer_object",
                                        extString)) {
            GR_GL_GET_PROC(GenFramebuffers);
            GR_GL_GET_PROC(GetFramebufferAttachmentParameteriv);
            GR_GL_GET_PROC(GetRenderbufferParameteriv);
            GR_GL_GET_PROC(BindFramebuffer);
            GR_GL_GET_PROC(FramebufferTexture2D);
            GR_GL_GET_PROC(CheckFramebufferStatus);
            GR_GL_GET_PROC(DeleteFramebuffers);
            GR_GL_GET_PROC(RenderbufferStorage);
            GR_GL_GET_PROC(GenRenderbuffers);
            GR_GL_GET_PROC(DeleteRenderbuffers);
            GR_GL_GET_PROC(FramebufferRenderbuffer);
            GR_GL_GET_PROC(BindRenderbuffer);
            GR_GL_GET_PROC(RenderbufferStorageMultisample);
            GR_GL_GET_PROC(BlitFramebuffer);
        } else if (GrGLHasExtensionFromString("GL_EXT_framebuffer_object",
                                              extString)) {
            GR_GL_GET_PROC_SUFFIX(GenFramebuffers, EXT);
            GR_GL_GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
            GR_GL_GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
            GR_GL_GET_PROC_SUFFIX(BindFramebuffer, EXT);
            GR_GL_GET_PROC_SUFFIX(FramebufferTexture2D, EXT);
            GR_GL_GET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
            GR_GL_GET_PROC_SUFFIX(DeleteFramebuffers, EXT);
            GR_GL_GET_PROC_SUFFIX(RenderbufferStorage, EXT);
            GR_GL_GET_PROC_SUFFIX(GenRenderbuffers, EXT);
            GR_GL_GET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
            GR_GL_GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
            GR_GL_GET_PROC_SUFFIX(BindRenderbuffer, EXT);
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_multisample",
                                           extString)) {
                GR_GL_GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
            }
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_blit",
                                           extString)) {
                GR_GL_GET_PROC_SUFFIX(BlitFramebuffer, EXT);
            }
        } else {
            // we must have FBOs
            delete interface;
            return NULL;
        }
        GR_GL_GET_PROC(BindFragDataLocationIndexed);
        interface->fBindingsExported = kDesktop_GrGLBinding;
        return interface;
    } else {
        return NULL;
    }
}
bool SkGLContextHelper::init(int width, int height) {
    if (fGL) {
        fGL->unref();
        this->destroyGLContext();
    }

    fGL = this->createGLContext();
    if (fGL) {
        const GrGLubyte* temp;

        GrGLBinding bindingInUse = GrGLGetBindingInUse(this->gl());

        if (!fGL->validate(bindingInUse) || !fExtensions.init(bindingInUse, fGL)) {
            fGL = NULL;
            this->destroyGLContext();
            return false;
        }

        SK_GL_RET(*this, temp, GetString(GR_GL_VERSION));
        const char* versionStr = reinterpret_cast<const char*>(temp);
        GrGLVersion version = GrGLGetVersionFromString(versionStr);

        // clear any existing GL erorrs
        GrGLenum error;
        do {
            SK_GL_RET(*this, error, GetError());
        } while (GR_GL_NO_ERROR != error);

        SK_GL(*this, GenFramebuffers(1, &fFBO));
        SK_GL(*this, BindFramebuffer(GR_GL_FRAMEBUFFER, fFBO));
        SK_GL(*this, GenRenderbuffers(1, &fColorBufferID));
        SK_GL(*this, BindRenderbuffer(GR_GL_RENDERBUFFER, fColorBufferID));
        if (kES_GrGLBinding == bindingInUse) {
            SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
                                             GR_GL_RGBA8,
                                             width, height));
        } else {
            SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
                                             GR_GL_RGBA,
                                             width, height));
        }
        SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
                                             GR_GL_COLOR_ATTACHMENT0,
                                             GR_GL_RENDERBUFFER,
                                             fColorBufferID));
        SK_GL(*this, GenRenderbuffers(1, &fDepthStencilBufferID));
        SK_GL(*this, BindRenderbuffer(GR_GL_RENDERBUFFER, fDepthStencilBufferID));

        // Some drivers that support packed depth stencil will only succeed
        // in binding a packed format an FBO. However, we can't rely on packed
        // depth stencil being available.
        bool supportsPackedDepthStencil;
        if (kES_GrGLBinding == bindingInUse) {
            supportsPackedDepthStencil = version >= GR_GL_VER(3,0) ||
                                         this->hasExtension("GL_OES_packed_depth_stencil");
        } else {
            supportsPackedDepthStencil = version >= GR_GL_VER(3,0) ||
                                         this->hasExtension("GL_EXT_packed_depth_stencil") ||
                                         this->hasExtension("GL_ARB_framebuffer_object");
        }

        if (supportsPackedDepthStencil) {
            // ES2 requires sized internal formats for RenderbufferStorage
            // On Desktop we let the driver decide.
            GrGLenum format = kES_GrGLBinding == bindingInUse ?
                                    GR_GL_DEPTH24_STENCIL8 :
                                    GR_GL_DEPTH_STENCIL;
            SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
                                             format,
                                             width, height));
            SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
                                                 GR_GL_DEPTH_ATTACHMENT,
                                                 GR_GL_RENDERBUFFER,
                                                 fDepthStencilBufferID));
        } else {
            GrGLenum format = kES_GrGLBinding == bindingInUse ?
                                    GR_GL_STENCIL_INDEX8 :
                                    GR_GL_STENCIL_INDEX;
            SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
                                             format,
                                             width, height));
        }
        SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
                                             GR_GL_STENCIL_ATTACHMENT,
                                             GR_GL_RENDERBUFFER,
                                             fDepthStencilBufferID));
        SK_GL(*this, Viewport(0, 0, width, height));
        SK_GL(*this, ClearStencil(0));
        SK_GL(*this, Clear(GR_GL_STENCIL_BUFFER_BIT));

        SK_GL_RET(*this, error, GetError());
        GrGLenum status;
        SK_GL_RET(*this, status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));

        if (GR_GL_FRAMEBUFFER_COMPLETE != status ||
            GR_GL_NO_ERROR != error) {
            fFBO = 0;
            fColorBufferID = 0;
            fDepthStencilBufferID = 0;
            fGL->unref();
            fGL = NULL;
            this->destroyGLContext();
            return false;
        } else {
            return true;
        }
    }
    return false;
}
示例#29
0
文件: GrGLCaps.cpp 项目: ghub/NVprSDK
void GrGLCaps::init(const GrGLContextInfo& ctxInfo) {

    this->reset();
    if (!ctxInfo.isInitialized()) {
        return;
    }

    const GrGLInterface* gli = ctxInfo.interface();
    GrGLBinding binding = ctxInfo.binding();
    GrGLVersion version = ctxInfo.version();

    if (kES2_GrGLBinding == binding) {
        GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS,
                          &fMaxFragmentUniformVectors);
    } else {
        GrAssert(kDesktop_GrGLBinding == binding);
        GrGLint max;
        GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &max);
        fMaxFragmentUniformVectors = max / 4;
    }

    if (kDesktop_GrGLBinding == binding) {
        fRGBA8RenderbufferSupport = true;
    } else {
        fRGBA8RenderbufferSupport = 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 {
        bool hasBGRAExt = false;
        if (ctxInfo.hasExtension("GL_APPLE_texture_format_BGRA8888")) {
            fBGRAFormatSupport = true;
        } else if (ctxInfo.hasExtension("GL_EXT_texture_format_BGRA8888")) {
            fBGRAFormatSupport = true;
            fBGRAIsInternalFormat = true;
        }
        GrAssert(fBGRAFormatSupport ||
                 kSkia8888_PM_GrPixelConfig != kBGRA_8888_PM_GrPixelConfig);
    }

    if (kDesktop_GrGLBinding == binding) {
        fTextureSwizzleSupport = version >= GR_GL_VER(3,3) ||
                                 ctxInfo.hasExtension("GL_ARB_texture_swizzle");
    } else {
        fTextureSwizzleSupport = false;
    }

    if (kDesktop_GrGLBinding == binding) {
        fUnpackRowLengthSupport = true;
        fUnpackFlipYSupport = false;
        fPackRowLengthSupport = true;
        fPackFlipYSupport = false;
    } else {
        fUnpackRowLengthSupport =ctxInfo.hasExtension("GL_EXT_unpack_subimage");
        fUnpackFlipYSupport = ctxInfo.hasExtension("GL_CHROMIUM_flipy");
        // no extension for pack row length
        fPackRowLengthSupport = false;
        fPackFlipYSupport =
            ctxInfo.hasExtension("GL_ANGLE_pack_reverse_row_order");
    }

    fTextureUsageSupport = (kES2_GrGLBinding == binding) &&
                            ctxInfo.hasExtension("GL_ANGLE_texture_usage");

    // Tex storage is in desktop 4.2 and can be an extension to desktop or ES.
    fTexStorageSupport = (kDesktop_GrGLBinding == binding &&
                          version >= GR_GL_VER(4,2)) ||
                         ctxInfo.hasExtension("GL_ARB_texture_storage") ||
                         ctxInfo.hasExtension("GL_EXT_texture_storage");

    // ARB_texture_rg is part of OpenGL 3.0
    if (kDesktop_GrGLBinding == binding) {
        fTextureRedSupport = version >= GR_GL_VER(3,0) ||
                             ctxInfo.hasExtension("GL_ARB_texture_rg");
    } else {
        fTextureRedSupport = ctxInfo.hasExtension("GL_ARB_texture_rg");
    }

    this->initFSAASupport(ctxInfo);
    this->initStencilFormats(ctxInfo);
}
示例#30
0
bool GrGLInterface::validate(GrEngine engine) const {

    bool isDesktop = this->supportsDesktop();

    bool isES = this->supportsES();
    
    if (isDesktop == isES) {
        // must have one, don't support both in same interface
        return false;
    }

    // functions that are always required
    if (NULL == fActiveTexture ||
        NULL == fBindBuffer ||
        NULL == fBindTexture ||
        NULL == fBlendFunc ||
        NULL == fBufferData ||
        NULL == fBufferSubData ||
        NULL == fClear ||
        NULL == fClearColor ||
        NULL == fClearStencil ||
        NULL == fColorMask ||
        NULL == fCullFace ||
        NULL == fDeleteBuffers ||
        NULL == fDeleteTextures ||
        NULL == fDepthMask ||
        NULL == fDisable ||
        NULL == fDrawArrays ||
        NULL == fDrawElements ||
        NULL == fEnable ||
        NULL == fFrontFace ||
        NULL == fGenBuffers ||
        NULL == fGenTextures ||
        NULL == fGetBufferParameteriv ||
        NULL == fGetError ||
        NULL == fGetIntegerv ||
        NULL == fGetString ||
        NULL == fPixelStorei ||
        NULL == fReadPixels ||
        NULL == fScissor ||
        NULL == fStencilFunc ||
        NULL == fStencilMask ||
        NULL == fStencilOp ||
        NULL == fTexImage2D ||
        NULL == fTexParameteri ||
        NULL == fTexSubImage2D ||
        NULL == fViewport ||
        NULL == fBindFramebuffer ||
        NULL == fBindRenderbuffer ||
        NULL == fCheckFramebufferStatus ||
        NULL == fDeleteFramebuffers ||
        NULL == fDeleteRenderbuffers ||
        NULL == fFramebufferRenderbuffer ||
        NULL == fFramebufferTexture2D ||
        NULL == fGetFramebufferAttachmentParameteriv ||
        NULL == fGetRenderbufferParameteriv ||
        NULL == fGenFramebuffers ||
        NULL == fGenRenderbuffers ||
        NULL == fRenderbufferStorage) {
        return false;
    }

    switch (engine) {
        case kOpenGL_Shaders_GrEngine:
            if (kES1_GrGLBinding == fBindingsExported) {
                return false;
            }
            if (!this->validateShaderFunctions()) {
                return false;
            }
            break;
        case kOpenGL_Fixed_GrEngine:
            if (kES1_GrGLBinding == fBindingsExported) {
                return false;
            }
            if (!this->validateFixedFunctions()) {
                return false;
            }
            break;
        default:
            return false;
    }

    const char* ext;
    GrGLVersion glVer = GrGLGetVersion(this);
    ext = (const char*)fGetString(GR_GL_EXTENSIONS);

    // Now check that baseline ES/Desktop fns not covered above are present
    // and that we have fn pointers for any advertised extensions that we will
    // try to use.

    // these functions are part of ES2, we assume they are available
    // On the desktop we assume they are available if the extension
    // is present or GL version is high enough.
    if ((kES2_GrGLBinding & fBindingsExported)) {
        if (NULL == fBlendColor ||
            NULL == fStencilFuncSeparate ||
            NULL == fStencilMaskSeparate ||
            NULL == fStencilOpSeparate) {
            return false;
        }
    } else if (kDesktop_GrGLBinding == fBindingsExported) {
        if (glVer >= GR_GL_VER(2,0)) {
            if (NULL == fStencilFuncSeparate ||
                NULL == fStencilMaskSeparate ||
                NULL == fStencilOpSeparate) {
                return false;
            }
        }
        if (glVer >= GR_GL_VER(3,0) && NULL == fBindFragDataLocation) {
            return false;
        }
        if (glVer >= GR_GL_VER(2,0) ||
            GrGLHasExtensionFromString("GL_ARB_draw_buffers", ext)) {
            if (NULL == fDrawBuffers) {
                return false;
            }
        }
        if (glVer >= GR_GL_VER(1,4) ||
            GrGLHasExtensionFromString("GL_EXT_blend_color", ext)) {
            if (NULL == fBlendColor) {
                return false;
            }
        }
    }

    // optional function on desktop before 1.3
    if (kDesktop_GrGLBinding != fBindingsExported ||
        (glVer >= GR_GL_VER(1,3) ||
        GrGLHasExtensionFromString("GL_ARB_texture_compression", ext))) {
        if (NULL == fCompressedTexImage2D) {
            return false;
        }
    }

    // part of desktop GL, but not ES
    if (kDesktop_GrGLBinding == fBindingsExported &&
        (NULL == fLineWidth ||
         NULL == fGetTexLevelParameteriv ||
         NULL == fDrawBuffer ||
         NULL == fReadBuffer)) {
        return false;
    }

    // FBO MSAA
    if (kDesktop_GrGLBinding == fBindingsExported) {
        // GL 3.0 and the ARB extension have multisample + blit
        if (glVer >= GR_GL_VER(3,0) || GrGLHasExtensionFromString("GL_ARB_framebuffer_object", ext)) {
            if (NULL == fRenderbufferStorageMultisample ||
                NULL == fBlitFramebuffer) {
                return false;
            }
        } else {
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_blit", ext) &&
                NULL == fBlitFramebuffer) {
                return false;
            }
            if (GrGLHasExtensionFromString("GL_EXT_framebuffer_multisample", ext) &&
                NULL == fRenderbufferStorageMultisample) {
                return false;
            }
        }
    } else {
        if (GrGLHasExtensionFromString("GL_CHROMIUM_framebuffer_multisample", ext)) {
            if (NULL == fRenderbufferStorageMultisample ||
                NULL == fBlitFramebuffer) {
                return false;
            }
        }
        if (GrGLHasExtensionFromString("GL_APPLE_framebuffer_multisample", ext)) {
            if (NULL == fRenderbufferStorageMultisample ||
                NULL == fResolveMultisampleFramebuffer) {
                return false;
            }
        }
    }

    // On ES buffer mapping is an extension. On Desktop
    // buffer mapping was part of original VBO extension
    // which we require.
    if (kDesktop_GrGLBinding == fBindingsExported  || 
        GrGLHasExtensionFromString("GL_OES_mapbuffer", ext)) {
        if (NULL == fMapBuffer ||
            NULL == fUnmapBuffer) {
            return false;
        }
    }

    // Dual source blending
    if (kDesktop_GrGLBinding == fBindingsExported  &&
        (glVer >= GR_GL_VER(3,3) || 
         GrGLHasExtensionFromString("GL_ARB_blend_func_extended", ext))) {
        if (NULL == fBindFragDataLocationIndexed) {
            return false;
        }
    }

    return true;
}