3076b4f009
This is in preparation of getting rid of X11OpenGLDeviceInfo for non-Windows platforms. Change-Id: I9c08292716244d046bf223eb760880db43b6824b Reviewed-on: https://gerrit.libreoffice.org/c/core/+/131921 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
124 lines
4.5 KiB
C++
124 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_VCL_OPENGL_OPENGLHELPER_HXX
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#define INCLUDED_VCL_OPENGL_OPENGLHELPER_HXX
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#include <epoxy/gl.h>
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#include <sal/detail/log.h>
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#include <vcl/dllapi.h>
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#include <vcl/bitmapex.hxx>
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#include <rtl/ustring.hxx>
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#include <sstream>
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#include <string_view>
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/// Helper to do a SAL_INFO as well as a GL log.
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#define VCL_GL_INFO(stream) \
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do { \
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if (SAL_DETAIL_ENABLE_LOG_INFO) \
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{ \
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::std::ostringstream detail_stream; \
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detail_stream << stream; \
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OpenGLHelper::debugMsgStream(detail_stream); \
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} \
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} while (false)
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/// Helper to do a SAL_WARN as well as a GL log.
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#define VCL_GL_WARN(stream) \
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do { \
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if (SAL_DETAIL_ENABLE_LOG_INFO) \
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{ \
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::std::ostringstream detail_stream; \
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detail_stream << stream; \
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OpenGLHelper::debugMsgStreamWarn(detail_stream); \
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} \
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} while (false)
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// All member functions static and VCL_DLLPUBLIC. Basically a glorified namespace.
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struct VCL_DLLPUBLIC OpenGLHelper
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{
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OpenGLHelper() = delete; // Should not be instantiated
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public:
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#if defined _WIN32
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static OString GetDigest(const OUString& rVertexShaderName, const OUString& rFragmentShaderName, std::string_view preamble );
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#endif
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static GLint LoadShaders(const OUString& rVertexShaderName, const OUString& rFragmentShaderName, const OUString& rGeometryShaderName, std::string_view preamble, std::string_view rDigest );
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static GLint LoadShaders(const OUString& rVertexShaderName, const OUString& rFragmentShaderName, std::string_view preamble, std::string_view rDigest );
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static GLint LoadShaders(const OUString& rVertexShaderName, const OUString& rFragmentShaderName, const OUString& rGeometryShaderName);
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static GLint LoadShaders(const OUString& rVertexShaderName, const OUString& rFragmentShaderName);
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/**
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* The caller is responsible for allocating the memory for the buffer before calling
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* this method. The buffer size is assumed to be 4*width*height and the format
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* to be OptimalBufferFormat().
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**/
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static BitmapEx ConvertBufferToBitmapEx(const sal_uInt8* const pBuffer, tools::Long nWidth, tools::Long nHeight);
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/**
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* Returns the optimal buffer format for OpenGL (GL_BGRA or GL_RGBA).
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**/
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static GLenum OptimalBufferFormat();
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static void renderToFile(tools::Long nWidth, tools::Long nHeight, const OUString& rFileName);
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static const char* GLErrorString(GLenum errorCode);
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/**
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* The caller is responsible for deleting the buffer objects identified by
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* nFramebufferId, nRenderbufferDepthId and nRenderbufferColorId.
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* This create a buffer for rendering to texture and should be freed with
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* glDeleteTextures.
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*
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* @param nWidth Width of frame
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* @param nHeight Height of frame
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* @param nFramebufferId FrameBuffer ID
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* @param nRenderbufferDepthId RenderBuffer's depth ID
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* @param nRenderbufferColorId RenderBuffer's color ID
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*/
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static void createFramebuffer(tools::Long nWidth, tools::Long nHeight, GLuint& nFramebufferId,
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GLuint& nRenderbufferDepthId, GLuint& nRenderbufferColorId);
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/// Get OpenGL version (needs a context)
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static float getGLVersion();
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static void checkGLError(const char* aFile, size_t nLine);
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/**
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* Insert a glDebugMessage into the queue - helpful for debugging
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* with apitrace to annotate the output and correlate it with code.
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*/
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#if defined __GNUC__
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__attribute__ ((format (printf, 2, 3)))
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#endif
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static void debugMsgPrint(const int nType, const char *pFormat, ...);
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static void debugMsgStream(std::ostringstream const &pStream);
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static void debugMsgStreamWarn(std::ostringstream const &pStream);
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/**
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* checks if the device/driver pair is on our OpenGL denylist
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*/
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static bool isDeviceDenylisted();
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/**
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* checks if the system supports all features that are necessary for the OpenGL support
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*/
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static bool supportsOpenGL();
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};
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#ifdef SAL_LOG_WARN
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#define CHECK_GL_ERROR() OpenGLHelper::checkGLError(__FILE__, __LINE__)
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#else
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#define CHECK_GL_ERROR() do { } while (false)
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#endif
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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