R600_ENABLE_GLSL_TEST defined, IL shader code will goto r600 assembler.
The test base is /mesa/progs/glsl/brick, and changes
shader code in CH06-brick.frag/vert to test different logic op
combination. (if,else,while,function,...). The stack depth code is not
in yet, so it is hard coded now. So complex code would not run (such as
things like 8 loops embeded loop in loop).
The padding was there to indicate the amount of space left from the
number of expected bytes in the struct minus allocated bits. But
uint bitfields get packed so that they don't cross uint boundaries, and we
ended up allocating an extra dword to hold the pad field!
Add a GLbitfield64 type and several macros to operate on 64-bit
fields. The OutputsWritten field of gl_program is changed to use that
type. This results in a fair amount of fallout in drivers that use
programs.
No changes are strictly necessary at this point as all bits used are
below the 32-bit boundary. Fairly soon several bits will be added for
clip distances written by a vertex shader. This will cause several
bits used for varyings to be pushed above the 32-bit boundary. This
will affect any drivers that support GLSL.
At this point, only the i965 driver has been modified to support this
eventuality.
I did this as a "squash" merge. There were several places through the
outputswritten64 branch where things were broken. I foresee this
causing difficulties later for bisecting. The history is still
available in the branch.
Conflicts:
src/mesa/drivers/dri/i965/brw_wm.h
All of this functionality is already included in ARB_fbo. This just
enables the string.
I was a bit lazy in using FEATURE_ARB_framebuffer_object for this
feature as well. I don't think it makes much difference in the long run.
Add GL_EXT_framebuffer_multisample. Make
glRenderbufferStorageMultisampleEXT in GL_EXT_framebuffer_object alias
glRenderbufferStorageMultisample. Also add the missing GLX render
opcode to glRenderbufferStorageMultisample.
Since this extension is layered on GL_EXT_framebuffer_object, I put it
in EXT_framebuffer_object.xml.
Richard Li