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OSMesa: Cleanup

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Fixes formatting, semantics and documentation.  Adds
glfwGetOSMesaContext.  Adds support for OSMesa context attributes.
Updates changelog and credits.  Adds license and copyright headers.
Removes superfluous code (the shared code provides many conveniences).
Removes loading of unused OSMesa functions.  Removes empty platform
structs.  Fixes version string format.  Removes build dependency on
the OSMesa header and library (only the library is needed and only at
runtime).

Closes #850.
This commit is contained in:
Camilla Berglund
2016-10-13 17:24:51 +02:00
parent 368fa9475d
commit fef21361c5
14 changed files with 611 additions and 350 deletions
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CMakeLists.txt
+18 -21
View File
@@ -28,6 +28,10 @@ option(GLFW_INSTALL "Generate installation target" ON)
option(GLFW_VULKAN_STATIC "Use the Vulkan loader statically linked into application" OFF)
option(GLFW_DOCUMENT_INTERNALS "Include internals in documentation" OFF)
if (UNIX)
option(GLFW_USE_OSMESA "Use OSMesa for offscreen context creation" OFF)
endif()
if (WIN32)
option(GLFW_USE_HYBRID_HPG "Force use of high-performance GPU on hybrid systems" OFF)
endif()
@@ -41,7 +45,6 @@ endif()
if (UNIX AND NOT APPLE)
option(GLFW_USE_WAYLAND "Use Wayland for window creation" OFF)
option(GLFW_USE_MIR "Use Mir for window creation" OFF)
option(GLFW_USE_OSMESA "Use OSMesa for offscreen context creation" OFF)
endif()
if (MSVC)
@@ -142,26 +145,24 @@ endif()
#--------------------------------------------------------------------
# Detect and select backend APIs
#--------------------------------------------------------------------
if (WIN32)
if (GLFW_USE_WAYLAND)
set(_GLFW_WAYLAND 1)
message(STATUS "Using Wayland for window creation")
elseif (GLFW_USE_MIR)
set(_GLFW_MIR 1)
message(STATUS "Using Mir for window creation")
elseif (GLFW_USE_OSMESA)
set(_GLFW_OSMESA 1)
message(STATUS "Using OSMesa for headless context creation")
elseif (WIN32)
set(_GLFW_WIN32 1)
message(STATUS "Using Win32 for window creation")
elseif (APPLE)
set(_GLFW_COCOA 1)
message(STATUS "Using Cocoa for window creation")
elseif (UNIX)
if (GLFW_USE_WAYLAND)
set(_GLFW_WAYLAND 1)
message(STATUS "Using Wayland for window creation")
elseif (GLFW_USE_MIR)
set(_GLFW_MIR 1)
message(STATUS "Using Mir for window creation")
elseif (GLFW_USE_OSMESA)
set(_GLFW_OSMESA 1)
message(STATUS "Using OSMesa for windowless context creation")
else()
set(_GLFW_X11 1)
message(STATUS "Using X11 for window creation")
endif()
set(_GLFW_X11 1)
message(STATUS "Using X11 for window creation")
else()
message(FATAL_ERROR "No supported platform was detected")
endif()
@@ -326,12 +327,8 @@ endif()
# Use OSMesa for offscreen context creation
#--------------------------------------------------------------------
if (_GLFW_OSMESA)
find_package(osmesa REQUIRED)
list(APPEND glfw_PKG_DEPS "osmesa")
list(APPEND glfw_INCLUDE_DIRS "${OSMESA_INCLUDE_DIR}")
list(APPEND glfw_LIBRARIES "${OSMESA_LIBRARIES}"
"${CMAKE_THREAD_LIBS_INIT}")
find_package(OSMesa REQUIRED)
list(APPEND glfw_LIBRARIES "${CMAKE_THREAD_LIBS_INIT}")
endif()
#--------------------------------------------------------------------