Import new functionality for GL4 backend

src/gpu/gl/GrGLInterface.cpp

Index: src/gpu/gl/GrGLInterface.cpp
diff --git a/src/gpu/gl/GrGLInterface.cpp b/src/gpu/gl/GrGLInterface.cpp
index 8bbd2f3b1b77c508a025269de66ac03988eaa6b7..29a092adaec69ec8469db45b0f5e312ee5c8bf32 100644
--- a/src/gpu/gl/GrGLInterface.cpp
+++ b/src/gpu/gl/GrGLInterface.cpp
@@ -466,14 +466,6 @@ bool GrGLInterface::validate() const {
         }
     }
 
-    if ((kGL_GrGLStandard == fStandard && fExtensions.has("GL_EXT_direct_state_access")) ||
-        (kGLES_GrGLStandard == fStandard && fExtensions.has("GL_NV_path_rendering"))) {
-        if (NULL == fFunctions.fMatrixLoadf ||
-            NULL == fFunctions.fMatrixLoadIdentity) {
-            RETURN_FALSE_INTERFACE
-        }
-    }
-
     if ((kGL_GrGLStandard == fStandard &&
          (glVer >= GR_GL_VER(4,3) || fExtensions.has("GL_ARB_program_interface_query"))) ||
         (kGLES_GrGLStandard == fStandard && glVer >= GR_GL_VER(3,1))) {
@@ -492,7 +484,9 @@ bool GrGLInterface::validate() const {
     }
 
     if (fExtensions.has("GL_NV_path_rendering")) {
-        if (NULL == fFunctions.fPathCommands ||
+        if (NULL == fFunctions.fMatrixLoadf ||
+            NULL == fFunctions.fMatrixLoadIdentity ||
+            NULL == fFunctions.fPathCommands ||
             NULL == fFunctions.fPathCoords ||
             NULL == fFunctions.fPathParameteri ||
             NULL == fFunctions.fPathParameterf ||
@@ -540,5 +534,175 @@ bool GrGLInterface::validate() const {
         }
     }
 
+    if ((kGL_GrGLStandard == fStandard && glVer >= GR_GL_VER(3,1)) ||
+        (kGLES_GrGLStandard == fStandard && glVer >= GR_GL_VER(3,0)) ||
+        fExtensions.has("GL_ARB_draw_instanced") ||
+        fExtensions.has("GL_EXT_draw_instanced")) {
+        if (NULL == fFunctions.fDrawArraysInstanced ||
+            NULL == fFunctions.fDrawElementsInstanced) {
+            RETURN_FALSE_INTERFACE
+        }
+    }
+
+    if ((kGL_GrGLStandard == fStandard && glVer >= GR_GL_VER(3,2)) ||
+        (kGLES_GrGLStandard == fStandard && glVer >= GR_GL_VER(3,0)) ||
+        fExtensions.has("GL_ARB_instanced_arrays") ||
+        fExtensions.has("GL_EXT_instanced_arrays")) {
+        if (NULL == fFunctions.fVertexAttribDivisor) {
+            RETURN_FALSE_INTERFACE
+        }
+    }
+
+    if (fExtensions.has("GL_NV_bindless_texture")) {
+        if (NULL == fFunctions.fGetTextureHandle ||
+            NULL == fFunctions.fGetTextureSamplerHandle ||
+            NULL == fFunctions.fMakeTextureHandleResident ||
+            NULL == fFunctions.fMakeTextureHandleNonResident ||
+            NULL == fFunctions.fGetImageHandle ||
+            NULL == fFunctions.fMakeImageHandleResident ||
+            NULL == fFunctions.fMakeImageHandleNonResident ||
+            NULL == fFunctions.fIsTextureHandleResident ||
+            NULL == fFunctions.fIsImageHandleResident ||
+            NULL == fFunctions.fUniformHandleui64 ||
+            NULL == fFunctions.fUniformHandleui64v ||
+            NULL == fFunctions.fProgramUniformHandleui64 ||
+            NULL == fFunctions.fProgramUniformHandleui64v) {
+            RETURN_FALSE_INTERFACE
+        }
+    }
+
+    if (kGL_GrGLStandard == fStandard && fExtensions.has("GL_EXT_direct_state_access")) {
+        if (NULL == fFunctions.fTextureParameteri ||
+            NULL == fFunctions.fTextureParameteriv ||
+            NULL == fFunctions.fTextureParameterf ||
+            NULL == fFunctions.fTextureParameterfv ||
+            NULL == fFunctions.fTextureImage1D ||
+            NULL == fFunctions.fTextureImage2D ||
+            NULL == fFunctions.fTextureSubImage1D ||
+            NULL == fFunctions.fTextureSubImage2D ||
+            NULL == fFunctions.fCopyTextureImage1D ||
+            NULL == fFunctions.fCopyTextureImage2D ||
+            NULL == fFunctions.fCopyTextureSubImage1D ||
+            NULL == fFunctions.fCopyTextureSubImage2D ||
+            NULL == fFunctions.fGetTextureImage ||
+            NULL == fFunctions.fGetTextureParameterfv ||
+            NULL == fFunctions.fGetTextureParameteriv ||
+            NULL == fFunctions.fGetTextureLevelParameterfv ||
+            NULL == fFunctions.fGetTextureLevelParameteriv) {
+            RETURN_FALSE_INTERFACE
+        }
+        if (glVer >= GR_GL_VER(1,2)) {
+            if (NULL == fFunctions.fTextureImage3D ||
+                NULL == fFunctions.fTextureSubImage3D ||
+                NULL == fFunctions.fCopyTextureSubImage3D ||
+                NULL == fFunctions.fCompressedTextureImage3D ||
+                NULL == fFunctions.fCompressedTextureImage2D ||
+                NULL == fFunctions.fCompressedTextureImage1D ||
+                NULL == fFunctions.fCompressedTextureSubImage3D ||
+                NULL == fFunctions.fCompressedTextureSubImage2D ||
+                NULL == fFunctions.fCompressedTextureSubImage1D ||
+                NULL == fFunctions.fGetCompressedTextureImage) {
+                RETURN_FALSE_INTERFACE
+            }
+        }
+        if (glVer >= GR_GL_VER(1,5)) {
+            if (NULL == fFunctions.fNamedBufferData ||
+                NULL == fFunctions.fNamedBufferSubData ||
+                NULL == fFunctions.fMapNamedBuffer ||
+                NULL == fFunctions.fUnmapNamedBuffer ||
+                NULL == fFunctions.fGetNamedBufferParameteriv ||
+                NULL == fFunctions.fGetNamedBufferPointerv ||
+                NULL == fFunctions.fGetNamedBufferSubData) {
+                RETURN_FALSE_INTERFACE
+            }
+        }
+        if (glVer >= GR_GL_VER(2,0)) {
+            if (NULL == fFunctions.fProgramUniform1f ||
+                NULL == fFunctions.fProgramUniform2f ||
+                NULL == fFunctions.fProgramUniform3f ||
+                NULL == fFunctions.fProgramUniform4f ||
+                NULL == fFunctions.fProgramUniform1i ||
+                NULL == fFunctions.fProgramUniform2i ||
+                NULL == fFunctions.fProgramUniform3i ||
+                NULL == fFunctions.fProgramUniform4i ||
+                NULL == fFunctions.fProgramUniform1fv ||
+                NULL == fFunctions.fProgramUniform2fv ||
+                NULL == fFunctions.fProgramUniform3fv ||
+                NULL == fFunctions.fProgramUniform4fv ||
+                NULL == fFunctions.fProgramUniform1iv ||
+                NULL == fFunctions.fProgramUniform2iv ||
+                NULL == fFunctions.fProgramUniform3iv ||
+                NULL == fFunctions.fProgramUniform4iv ||
+                NULL == fFunctions.fProgramUniformMatrix2fv ||
+                NULL == fFunctions.fProgramUniformMatrix3fv ||
+                NULL == fFunctions.fProgramUniformMatrix4fv) {
+                RETURN_FALSE_INTERFACE
+            }
+        }
+        if (glVer >= GR_GL_VER(2,1)) {
+            if (NULL == fFunctions.fProgramUniformMatrix2x3fv ||
+                NULL == fFunctions.fProgramUniformMatrix3x2fv ||
+                NULL == fFunctions.fProgramUniformMatrix2x4fv ||
+                NULL == fFunctions.fProgramUniformMatrix4x2fv ||
+                NULL == fFunctions.fProgramUniformMatrix3x4fv ||
+                NULL == fFunctions.fProgramUniformMatrix4x3fv) {
+                RETURN_FALSE_INTERFACE
+            }
+        }
+        if (glVer >= GR_GL_VER(3,0)) {
+            if (NULL == fFunctions.fNamedRenderbufferStorage ||
+                NULL == fFunctions.fGetNamedRenderbufferParameteriv ||
+                NULL == fFunctions.fNamedRenderbufferStorageMultisample ||
+                NULL == fFunctions.fCheckNamedFramebufferStatus ||
+                NULL == fFunctions.fNamedFramebufferTexture1D ||
+                NULL == fFunctions.fNamedFramebufferTexture2D ||
+                NULL == fFunctions.fNamedFramebufferTexture3D ||
+                NULL == fFunctions.fNamedFramebufferRenderbuffer ||
+                NULL == fFunctions.fGetNamedFramebufferAttachmentParameteriv ||
+                NULL == fFunctions.fGenerateTextureMipmap ||
+                NULL == fFunctions.fFramebufferDrawBuffer ||
+                NULL == fFunctions.fFramebufferDrawBuffers ||
+                NULL == fFunctions.fFramebufferReadBuffer ||
+                NULL == fFunctions.fGetFramebufferParameteriv ||
+                NULL == fFunctions.fNamedCopyBufferSubData ||
+                NULL == fFunctions.fVertexArrayVertexOffset ||
+                NULL == fFunctions.fVertexArrayColorOffset ||
+                NULL == fFunctions.fVertexArrayEdgeFlagOffset ||
+                NULL == fFunctions.fVertexArrayIndexOffset ||
+                NULL == fFunctions.fVertexArrayNormalOffset ||
+                NULL == fFunctions.fVertexArrayTexCoordOffset ||
+                NULL == fFunctions.fVertexArrayMultiTexCoordOffset ||
+                NULL == fFunctions.fVertexArrayFogCoordOffset ||
+                NULL == fFunctions.fVertexArraySecondaryColorOffset ||
+                NULL == fFunctions.fVertexArrayVertexAttribOffset ||
+                NULL == fFunctions.fVertexArrayVertexAttribIOffset ||
+                NULL == fFunctions.fEnableVertexArray ||
+                NULL == fFunctions.fDisableVertexArray ||
+                NULL == fFunctions.fEnableVertexArrayAttrib ||
+                NULL == fFunctions.fDisableVertexArrayAttrib ||
+                NULL == fFunctions.fGetVertexArrayIntegerv ||
+                NULL == fFunctions.fGetVertexArrayPointerv ||
+                NULL == fFunctions.fGetVertexArrayIntegeri_v ||
+                NULL == fFunctions.fGetVertexArrayPointeri_v ||
+                NULL == fFunctions.fMapNamedBufferRange ||
+                NULL == fFunctions.fFlushMappedNamedBufferRange) {
+                RETURN_FALSE_INTERFACE
+            }
+        }
+    }
+
+    if ((kGL_GrGLStandard == fStandard && glVer >= GR_GL_VER(4,3)) ||
+        fExtensions.has("GL_KHR_debug")) {
+        if (NULL == fFunctions.fDebugMessageControl ||
+            NULL == fFunctions.fDebugMessageInsert ||
+            NULL == fFunctions.fDebugMessageCallback ||
+            NULL == fFunctions.fGetDebugMessageLog ||
+            NULL == fFunctions.fPushDebugGroup ||
+            NULL == fFunctions.fPopDebugGroup ||
+            NULL == fFunctions.fObjectLabel) {
+            RETURN_FALSE_INTERFACE
+        }
+    }
+
     return true;
 }