Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/glLoader/CMakeLists.txt

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+#
+#   Copyright 2020 Pixar
+#
+#   Licensed under the terms set forth in the LICENSE.txt file available at
+#   https://opensubdiv.org/license.
+#
+
+if( APPLE OR UNIX )
+    add_definitions(-fPIC)
+endif()
+
+list(APPEND GLLOADER_SOURCE_FILES
+    glLoader.cpp
+    glApi.cpp
+)
+
+list(APPEND GLLOADER_HEADER_FILES
+    glLoader.h
+    glApi.h
+    khrplatform.h
+)
+
+include_directories(
+    "${OPENGL_LOADER_INCLUDE_DIRS}"
+)
+
+list(APPEND PLATFORM_LIBRARIES
+    "${OPENGL_LOADER_LIBRARIES}"
+)
+
+add_library(glLoader_obj
+    OBJECT
+        ${GLLOADER_SOURCE_FILES}
+        ${GLLOADER_HEADER_FILES}
+)

blender-5.2.0/extern/opensubdiv-source/glLoader/glLoader.cpp

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+//
+//   Copyright 2020 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#include "glLoader.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+
+namespace OpenSubdiv {
+namespace internal {
+namespace GLLoader {
+
+
+bool
+applicationInitializeGL()
+{
+#if defined(OSD_USES_INTERNAL_GLAPILOADER)
+    // -- GLAPILOADER
+    return OpenSubdiv::internal::GLApi::glApiLoad();
+
+#elif defined(OSD_USES_GLEW)
+    // -- GLEW
+#define CORE_PROFILE
+#ifdef CORE_PROFILE
+    // this is the only way to initialize GLEW (before GLEW 1.13)
+    // correctly under core profile context.
+    glewExperimental = true;
+#endif
+    GLenum status = glewInit();
+    if (status != GLEW_OK) {
+        printf("Failed to initialize glew. Error = %s\n",
+               glewGetErrorString(status));
+        return false;
+    }
+#ifdef CORE_PROFILE
+    // clear GL errors which were generated during glewInit()
+    glGetError();
+#endif
+#endif
+    return true;
+}
+
+bool
+libraryInitializeGL()
+{
+#if defined(OSD_USES_INTERNAL_GLAPILOADER)
+    return OpenSubdiv::internal::GLApi::glApiLoad();
+#else
+    // otherwise do nothing
+    return true;
+#endif
+}
+
+
+}  // namespace GLLoader
+}  // namespace internal
+}  // namespace OpenSubdiv

blender-5.2.0/extern/opensubdiv-source/glLoader/glLoader.h

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+//
+//   Copyright 2020 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#ifndef OPENSUBDIV3_GLLOADER_H
+#define OPENSUBDIV3_GLLOADER_H
+
+/// OpenGL Loading Library Support
+///
+/// An OpenGL loading library is required in order to load extended GL API
+/// function entry points at run-time and to define types, enum values,
+/// and function prototypes needed at compile-time.
+///
+/// There are three components to this library:
+///   glLoader.h        -- interface (this header file)
+///   glApi.h           -- low-level generated OpenGL API loader
+///   khrplatform.h     -- khronos.org abstraction for low-level platform types
+///
+/// To use:
+///   - Include "glloader.h"
+///
+///   - Initialize from example applications or from the library by calling;
+///
+///     internal::GLLoader::applicationInitializeGL();
+///     -or-
+///     internal::GLLoader::libraryInitializeGL();
+///
+/// There are distinct compile-time and run-time requirements for developing
+/// OpenGL software which will build and run in a variety of situations.
+///
+/// 1) Compile-time definitions of core types
+///
+/// These are the core data types used as the argument and return value types
+/// of GL API functions. In this implementation, they are defined in terms
+/// of the types defined by Khronos Group in "khrplatform.h"
+///
+/// These types are defined in the global namespace.
+///
+/// 2) Compile-time definitions of enum values
+///
+/// These are GLenum data values used by the GL API. They are implemented
+/// as preprocessor definitions, e.g.
+///
+///     #define GL_UNIFORM_BUFFER 0x8A0F
+///
+/// These preprocessor symbols are defined in the global namespace.
+///
+/// 3) Compile-time definitions for versions and extensions
+///
+/// The GL API and extension specifications specify standard preprocessor
+/// symbols which can be tested at compile-time to protect sections of source
+/// code which require a specific version or extension, e.g.
+///
+///     #if defined(GL_VERSION_4_0)
+///         // ... GL_VERSION_4_0 specific code
+///     #endif
+///
+///     #if defined(GL_ARB_tessellation_shader)
+///         // ... ARB_tessellation_shader specific code
+///     #endif
+///
+/// These preprocessor symbols are defined in the global namespace.
+///
+/// 4) Compile-time declarations of function prototypes
+///
+/// Each GL API function has a typedef for the function prototype and
+/// a function pointer (initialized to nullptr) which implements the
+/// function, e.g.
+///
+///     typedef void (GLAPIENTRY * PFNGLBINDBUFFERBASEPROC)(
+///                             GLenum  target, GLuint  index, GLuint  buffer);
+///     PFNGLBINDBUFFERBASEPROC glBindBufferBase;
+///
+/// These types and function pointers are defined in an internal namespace.
+///
+/// 5) Run-time loading of supported functions
+///
+/// Because a GL program may be compiled and run in different environments,
+/// GL API functions must be loaded dynamically at run time. This is taken
+/// care of by executing the low-level OpenGL API loader, e.g.
+///
+///     bool internal::GLLoader::libraryInitializeGL() {
+///         ...
+///         glBindBufferBase = (PFNGLBINDBUFFERBASEPROC)
+///                                 loadFunction("glBindBufferBase");
+///         ...
+///     }
+///
+/// The loaded function pointers are defined in an internal namespace.
+///
+/// 6) Run-time queries for supported versions and extensions
+///
+/// Finally, a GL program should check for the availability of required
+/// features at run-time. Typically, this requires inspection of the
+/// strings or string lists returned by calling the glGetString functions.
+///
+/// This loader library processes these queries when loading the GL API
+/// and saves the results in boolean variables which follow a naming
+/// convention similar to the preprocessor symbols described above.
+///
+/// This loader further provides macros which wrap evaluation of these
+/// boolean variables in order to help isolate source code from details
+/// of the specific naming (prefixes, etc) of these variables, e.g.
+///
+///     #if defined(GL_VERSION_4_0)
+///     if (OSD_OPENGL_HAS(VERSION_4_0)) {
+///         // ... GL_VERSION_4_0 specific code
+///     }
+///     #endif
+///
+///     #if defined(GL_ARB_tessellation_shader)
+///     if (OSD_OPENGL_HAS(ARB_tessellation_shader)) {
+///         // ... ARB_tessellation_shader specific code
+///     }
+///     #endif
+///
+/// The boolean variables described here are defined in an internal namespace.
+///
+
+#if defined(OSD_USES_INTERNAL_GLAPILOADER)
+    // -- GLAPILOADER
+    #include "glApi.h"
+
+    #define OSD_OPENGL_HAS(token) (GLAPILOADER_GL_##token)
+
+#elif defined(OSD_USES_GLEW)
+    // -- GLEW
+    #include <GL/glew.h>
+
+    #define OSD_OPENGL_HAS(token) (GLEW_##token)
+
+#endif
+
+namespace OpenSubdiv {
+namespace internal {
+namespace GLLoader {
+
+
+// Initialize OpenGL loader library from the application. This is used
+// only by examples and tests in this code base.
+extern bool applicationInitializeGL();
+
+// Initialize OpenGL loader library from the library. This does nothing
+// for external loader libraries like GLEW, since in that case, it is
+// the application's responsibility to initialize the loader library.
+extern bool libraryInitializeGL();
+
+
+}  // namespace GLLoader
+}  // namespace internal
+}  // namespace OpenSubdiv
+
+
+#if defined(OSD_USES_INTERNAL_GLAPILOADER)
+using namespace OpenSubdiv::internal::GLApi;
+#endif
+
+
+#endif  // OPENSUBDIV3_GLLOADER_H

blender-5.2.0/extern/opensubdiv-source/glLoader/khrplatform.h

@@ -0,0 +1,290 @@
+#ifndef __khrplatform_h_
+#define __khrplatform_h_
+
+/*
+** Copyright (c) 2008-2018 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+/* Khronos platform-specific types and definitions.
+ *
+ * The master copy of khrplatform.h is maintained in the Khronos EGL
+ * Registry repository at https://github.com/KhronosGroup/EGL-Registry
+ * The last semantic modification to khrplatform.h was at commit ID:
+ *      67a3e0864c2d75ea5287b9f3d2eb74a745936692
+ *
+ * Adopters may modify this file to suit their platform. Adopters are
+ * encouraged to submit platform specific modifications to the Khronos
+ * group so that they can be included in future versions of this file.
+ * Please submit changes by filing pull requests or issues on
+ * the EGL Registry repository linked above.
+ *
+ *
+ * See the Implementer's Guidelines for information about where this file
+ * should be located on your system and for more details of its use:
+ *    http://www.khronos.org/registry/implementers_guide.pdf
+ *
+ * This file should be included as
+ *        #include <KHR/khrplatform.h>
+ * by Khronos client API header files that use its types and defines.
+ *
+ * The types in khrplatform.h should only be used to define API-specific types.
+ *
+ * Types defined in khrplatform.h:
+ *    khronos_int8_t              signed   8  bit
+ *    khronos_uint8_t             unsigned 8  bit
+ *    khronos_int16_t             signed   16 bit
+ *    khronos_uint16_t            unsigned 16 bit
+ *    khronos_int32_t             signed   32 bit
+ *    khronos_uint32_t            unsigned 32 bit
+ *    khronos_int64_t             signed   64 bit
+ *    khronos_uint64_t            unsigned 64 bit
+ *    khronos_intptr_t            signed   same number of bits as a pointer
+ *    khronos_uintptr_t           unsigned same number of bits as a pointer
+ *    khronos_ssize_t             signed   size
+ *    khronos_usize_t             unsigned size
+ *    khronos_float_t             signed   32 bit floating point
+ *    khronos_time_ns_t           unsigned 64 bit time in nanoseconds
+ *    khronos_utime_nanoseconds_t unsigned time interval or absolute time in
+ *                                         nanoseconds
+ *    khronos_stime_nanoseconds_t signed time interval in nanoseconds
+ *    khronos_boolean_enum_t      enumerated boolean type. This should
+ *      only be used as a base type when a client API's boolean type is
+ *      an enum. Client APIs which use an integer or other type for
+ *      booleans cannot use this as the base type for their boolean.
+ *
+ * Tokens defined in khrplatform.h:
+ *
+ *    KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
+ *
+ *    KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
+ *    KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
+ *
+ * Calling convention macros defined in this file:
+ *    KHRONOS_APICALL
+ *    KHRONOS_APIENTRY
+ *    KHRONOS_APIATTRIBUTES
+ *
+ * These may be used in function prototypes as:
+ *
+ *      KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
+ *                                  int arg1,
+ *                                  int arg2) KHRONOS_APIATTRIBUTES;
+ */
+
+#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC)
+#   define KHRONOS_STATIC 1
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APICALL
+ *-------------------------------------------------------------------------
+ * This precedes the return type of the function in the function prototype.
+ */
+#if defined(KHRONOS_STATIC)
+    /* If the preprocessor constant KHRONOS_STATIC is defined, make the
+     * header compatible with static linking. */
+#   define KHRONOS_APICALL
+#elif defined(_WIN32)
+#   define KHRONOS_APICALL __declspec(dllimport)
+#elif defined (__SYMBIAN32__)
+#   define KHRONOS_APICALL IMPORT_C
+#elif defined(__ANDROID__)
+#   define KHRONOS_APICALL __attribute__((visibility("default")))
+#else
+#   define KHRONOS_APICALL
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APIENTRY
+ *-------------------------------------------------------------------------
+ * This follows the return type of the function  and precedes the function
+ * name in the function prototype.
+ */
+#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(KHRONOS_STATIC)
+    /* Win32 but not WinCE */
+#   define KHRONOS_APIENTRY __stdcall
+#else
+#   define KHRONOS_APIENTRY
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APIATTRIBUTES
+ *-------------------------------------------------------------------------
+ * This follows the closing parenthesis of the function prototype arguments.
+ */
+#if defined (__ARMCC_2__)
+#define KHRONOS_APIATTRIBUTES __softfp
+#else
+#define KHRONOS_APIATTRIBUTES
+#endif
+
+/*-------------------------------------------------------------------------
+ * basic type definitions
+ *-----------------------------------------------------------------------*/
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
+
+
+/*
+ * Using <stdint.h>
+ */
+#include <stdint.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(__VMS ) || defined(__sgi)
+
+/*
+ * Using <inttypes.h>
+ */
+#include <inttypes.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
+
+/*
+ * Win32
+ */
+typedef __int32                 khronos_int32_t;
+typedef unsigned __int32        khronos_uint32_t;
+typedef __int64                 khronos_int64_t;
+typedef unsigned __int64        khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(__sun__) || defined(__digital__)
+
+/*
+ * Sun or Digital
+ */
+typedef int                     khronos_int32_t;
+typedef unsigned int            khronos_uint32_t;
+#if defined(__arch64__) || defined(_LP64)
+typedef long int                khronos_int64_t;
+typedef unsigned long int       khronos_uint64_t;
+#else
+typedef long long int           khronos_int64_t;
+typedef unsigned long long int  khronos_uint64_t;
+#endif /* __arch64__ */
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif 0
+
+/*
+ * Hypothetical platform with no float or int64 support
+ */
+typedef int                     khronos_int32_t;
+typedef unsigned int            khronos_uint32_t;
+#define KHRONOS_SUPPORT_INT64   0
+#define KHRONOS_SUPPORT_FLOAT   0
+
+#else
+
+/*
+ * Generic fallback
+ */
+#include <stdint.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#endif
+
+
+/*
+ * Types that are (so far) the same on all platforms
+ */
+typedef signed   char          khronos_int8_t;
+typedef unsigned char          khronos_uint8_t;
+typedef signed   short int     khronos_int16_t;
+typedef unsigned short int     khronos_uint16_t;
+
+/*
+ * Types that differ between LLP64 and LP64 architectures - in LLP64,
+ * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
+ * to be the only LLP64 architecture in current use.
+ */
+#ifdef _WIN64
+typedef signed   long long int khronos_intptr_t;
+typedef unsigned long long int khronos_uintptr_t;
+typedef signed   long long int khronos_ssize_t;
+typedef unsigned long long int khronos_usize_t;
+#else
+typedef signed   long  int     khronos_intptr_t;
+typedef unsigned long  int     khronos_uintptr_t;
+typedef signed   long  int     khronos_ssize_t;
+typedef unsigned long  int     khronos_usize_t;
+#endif
+
+#if KHRONOS_SUPPORT_FLOAT
+/*
+ * Float type
+ */
+typedef          float         khronos_float_t;
+#endif
+
+#if KHRONOS_SUPPORT_INT64
+/* Time types
+ *
+ * These types can be used to represent a time interval in nanoseconds or
+ * an absolute Unadjusted System Time.  Unadjusted System Time is the number
+ * of nanoseconds since some arbitrary system event (e.g. since the last
+ * time the system booted).  The Unadjusted System Time is an unsigned
+ * 64 bit value that wraps back to 0 every 584 years.  Time intervals
+ * may be either signed or unsigned.
+ */
+typedef khronos_uint64_t       khronos_utime_nanoseconds_t;
+typedef khronos_int64_t        khronos_stime_nanoseconds_t;
+#endif
+
+/*
+ * Dummy value used to pad enum types to 32 bits.
+ */
+#ifndef KHRONOS_MAX_ENUM
+#define KHRONOS_MAX_ENUM 0x7FFFFFFF
+#endif
+
+/*
+ * Enumerated boolean type
+ *
+ * Values other than zero should be considered to be true.  Therefore
+ * comparisons should not be made against KHRONOS_TRUE.
+ */
+typedef enum {
+    KHRONOS_FALSE = 0,
+    KHRONOS_TRUE  = 1,
+    KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
+} khronos_boolean_enum_t;
+
+#endif /* __khrplatform_h_ */