Kenneth Graunke
f1a677cefb
Previously, we would fail to compile the following shader due to a bug
in lazy built-in importing:
#version 130
void main() {
float f = abs(5.0);
int i = abs(5);
}
The first call, abs(5.0), would fail to find a local signature, look
through the built-ins, and import "float abs(float)".
The second call, abs(5), would find the newly imported float signature
in the local shader, and settle for that. Unfortunately, it failed to
search the built-ins for the correct/exact signature, "int abs(int)".
Thus, abs(5) ended up being a float, causing a bizarre type error when
we tried to assign it to an int.
Fixes piglit test builtin-overload-matching.frag.
This is /not/ a candidate for stable branches, as it should only be
possible to trigger this bug using GLSL 1.30's built-in functions that
take integer arguments. Plus, the changes are fairly invasive.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
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.