Robert Bragg
670f182a1f
When creating an EGLImage from a struct wl_buffer * this ensures that we create an XRGB8888 image if the wayland buffer doesn't have an alpha channel. To determine if a wl_buffer has a valid alpha channel this patch adds an internal wayland_drm_buffer_has_alpha() function. It's important to get the internal format for an EGLImage right so that if a GL texture is later created from the image then the GL driver will know if it should sample the alpha from the texture or flatten it to a constant of 1.0. This avoids needing fragment program workarounds in wayland compositors to manually ignore the alpha component of textures created from wayland buffers. krh: Edited to use wl_buffer_get_format() instead of wl_buffer_has_alpha(). Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
File: docs/README.WIN32 Last updated: 23 April 2011 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons osmesa mesagdi to build classic mesa Windows GDI drivers; or scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.