initial work to split into dart_filament and flutter_filament
This commit is contained in:
Nick Fisher
210
flutter_filament/windows/include/gl_headers.h
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210
flutter_filament/windows/include/gl_headers.h
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef TNT_FILAMENT_BACKEND_OPENGL_GL_HEADERS_H
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#define TNT_FILAMENT_BACKEND_OPENGL_GL_HEADERS_H
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/*
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* Configuration we aim to support:
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*
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* GL 4.5 headers
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* - GL 4.1 runtime (for macOS)
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* - GL 4.5 runtime
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*
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* GLES 2.0 headers
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* - GLES 2.0 runtime Android only
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*
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* GLES 3.0 headers
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* - GLES 3.0 runtime iOS and WebGL2 only
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*
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* GLES 3.1 headers
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* - GLES 2.0 runtime
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* - GLES 3.0 runtime
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* - GLES 3.1 runtime
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*/
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#if defined(__ANDROID__) || defined(FILAMENT_USE_EXTERNAL_GLES3) || defined(__EMSCRIPTEN__)
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#if defined(__EMSCRIPTEN__)
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# include <GLES3/gl3.h>
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#else
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# include <GLES3/gl31.h>
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#endif
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#include <GLES2/gl2ext.h>
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#elif defined(IOS)
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#define GLES_SILENCE_DEPRECATION
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#include <OpenGLES/ES3/gl.h>
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#include <OpenGLES/ES3/glext.h>
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#else
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// bluegl exposes symbols prefixed with bluegl_ to avoid clashing with clients that also link
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// against GL.
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// This header re-defines GL function names with the bluegl_ prefix.
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// For example:
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// #define glFunction bluegl_glFunction
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// This header must come before <bluegl/BlueGL.h>.
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#include <bluegl/BlueGLDefines.h>
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#include <bluegl/BlueGL.h>
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#endif
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/* Validate the header configurations we aim to support */
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#if defined(GL_VERSION_4_5)
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#elif defined(GL_ES_VERSION_3_1)
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#elif defined(GL_ES_VERSION_3_0)
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# if !defined(IOS) && !defined(__EMSCRIPTEN__)
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# error "GLES 3.0 headers only supported on iOS and WebGL2"
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# endif
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#elif defined(GL_ES_VERSION_2_0)
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# if !defined(__ANDROID__)
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# error "GLES 2.0 headers only supported on Android"
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# endif
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#else
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# error "Minimum header version must be OpenGL ES 2.0 or OpenGL 4.5"
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#endif
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/*
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* GLES extensions
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*/
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#if defined(GL_ES_VERSION_2_0) // this basically means all versions of GLES
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#if defined(IOS)
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// iOS headers only provide prototypes, nothing to do.
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#else
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#define FILAMENT_IMPORT_ENTRY_POINTS
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/* The Android NDK doesn't expose extensions, fake it with eglGetProcAddress */
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namespace glext {
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// importGLESExtensionsEntryPoints is thread-safe and can be called multiple times.
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// it is currently called from PlatformEGL.
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void importGLESExtensionsEntryPoints();
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#ifdef GL_OES_EGL_image
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extern PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES;
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#endif
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#ifdef GL_EXT_debug_marker
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extern PFNGLINSERTEVENTMARKEREXTPROC glInsertEventMarkerEXT;
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extern PFNGLPUSHGROUPMARKEREXTPROC glPushGroupMarkerEXT;
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extern PFNGLPOPGROUPMARKEREXTPROC glPopGroupMarkerEXT;
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#endif
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#ifdef GL_EXT_multisampled_render_to_texture
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extern PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glRenderbufferStorageMultisampleEXT;
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extern PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC glFramebufferTexture2DMultisampleEXT;
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#endif
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#ifdef GL_KHR_debug
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extern PFNGLDEBUGMESSAGECALLBACKKHRPROC glDebugMessageCallbackKHR;
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extern PFNGLGETDEBUGMESSAGELOGKHRPROC glGetDebugMessageLogKHR;
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#endif
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#ifdef GL_EXT_clip_control
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extern PFNGLCLIPCONTROLEXTPROC glClipControlEXT;
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#endif
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#ifdef GL_EXT_disjoint_timer_query
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extern PFNGLGETQUERYOBJECTUI64VEXTPROC glGetQueryObjectui64v;
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#endif
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#if defined(__ANDROID__)
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extern PFNGLDISPATCHCOMPUTEPROC glDispatchCompute;
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#endif
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} // namespace glext
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using namespace glext;
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#endif
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// Prevent lots of #ifdef's between desktop and mobile
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#ifdef GL_EXT_disjoint_timer_query
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# define GL_TIME_ELAPSED GL_TIME_ELAPSED_EXT
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#endif
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#ifdef GL_EXT_clip_control
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# define GL_LOWER_LEFT GL_LOWER_LEFT_EXT
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# define GL_ZERO_TO_ONE GL_ZERO_TO_ONE_EXT
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#endif
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// we need GL_TEXTURE_CUBE_MAP_ARRAY defined, but we won't use it if the extension/feature
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// is not available.
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#if defined(GL_EXT_texture_cube_map_array)
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# define GL_TEXTURE_CUBE_MAP_ARRAY GL_TEXTURE_CUBE_MAP_ARRAY_EXT
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#else
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# define GL_TEXTURE_CUBE_MAP_ARRAY 0x9009
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#endif
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#if defined(GL_KHR_debug)
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# define GL_DEBUG_OUTPUT GL_DEBUG_OUTPUT_KHR
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# define GL_DEBUG_OUTPUT_SYNCHRONOUS GL_DEBUG_OUTPUT_SYNCHRONOUS_KHR
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# define GL_DEBUG_SEVERITY_HIGH GL_DEBUG_SEVERITY_HIGH_KHR
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# define GL_DEBUG_SEVERITY_MEDIUM GL_DEBUG_SEVERITY_MEDIUM_KHR
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# define GL_DEBUG_SEVERITY_LOW GL_DEBUG_SEVERITY_LOW_KHR
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# define GL_DEBUG_SEVERITY_NOTIFICATION GL_DEBUG_SEVERITY_NOTIFICATION_KHR
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# define GL_DEBUG_TYPE_MARKER GL_DEBUG_TYPE_MARKER_KHR
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# define GL_DEBUG_TYPE_ERROR GL_DEBUG_TYPE_ERROR_KHR
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# define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_KHR
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# define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_KHR
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# define GL_DEBUG_TYPE_PORTABILITY GL_DEBUG_TYPE_PORTABILITY_KHR
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# define GL_DEBUG_TYPE_PERFORMANCE GL_DEBUG_TYPE_PERFORMANCE_KHR
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# define GL_DEBUG_TYPE_OTHER GL_DEBUG_TYPE_OTHER_KHR
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# define glDebugMessageCallback glDebugMessageCallbackKHR
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#endif
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#endif // GL_ES_VERSION_2_0
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// This is just to simplify the implementation (i.e. so we don't have to have #ifdefs everywhere)
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#ifndef GL_OES_EGL_image_external
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#define GL_TEXTURE_EXTERNAL_OES 0x8D65
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#endif
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// This is an odd duck function that exists in WebGL 2.0 but not in OpenGL ES.
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#if defined(__EMSCRIPTEN__)
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extern "C" {
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void glGetBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, void *data);
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}
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#endif
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#if defined(GL_ES_VERSION_2_0)
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# define BACKEND_OPENGL_VERSION_GLES
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#elif defined(GL_VERSION_4_5)
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# define BACKEND_OPENGL_VERSION_GL
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#else
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# error "Unsupported header version"
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#endif
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#if defined(GL_VERSION_4_5) || defined(GL_ES_VERSION_3_1)
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# define BACKEND_OPENGL_LEVEL_GLES31
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# ifdef __EMSCRIPTEN__
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# error "__EMSCRIPTEN__ shouldn't be defined with GLES 3.1 headers"
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# endif
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#endif
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#if defined(GL_VERSION_4_5) || defined(GL_ES_VERSION_3_0)
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# define BACKEND_OPENGL_LEVEL_GLES30
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#endif
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#if defined(GL_VERSION_4_5) || defined(GL_ES_VERSION_2_0)
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# define BACKEND_OPENGL_LEVEL_GLES20
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#endif
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#include "NullGLES.h"
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#endif // TNT_FILAMENT_BACKEND_OPENGL_GL_HEADERS_H
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