Surprisingly all drivers supporting MSAA can already do this (r300g and r600g
for sure) and I think Christoph wanted to have this feature for his Nouveau
drivers anyway.
Any driver that supports GLSL 1.30 should be able to handle this
extension, as it's entirely implemented in the GLSL compiler.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
See my explanation in mtypes.h.
v2: don't do this in gallium
v3: also updated the comment at the gl_shader_type definition
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Every driver left in Mesa that enables one also enables the other.
There's no reason to let it be optional.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
In Mesa, this extension is implemented purely in software. Drivers may
*optionally* provide optimized paths.
NOTE: This has the side effect of enabling the extension in the radeon,
r200, and nouveau drivers.
v2: Minor whitespace tidying (suggested by Brian).
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
This extension just provides some of the most basic software framework
for GLSL. Without GL_ARB_vertex_shader or GL_ARB_fragment_shader,
applications still cannot use GLSL. There's no value in
conditionalizing support for this extension.
NOTE: This has the side effect of enabling the extension in the radeon,
r200, and nouveau drivers.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
This extension just provides some of the most basic software framework
for GLSL. Without GL_ARB_vertex_shader or GL_ARB_fragment_shader,
applications still cannot use GLSL. There's no value in
conditionalizing support for this extension.
NOTE: This has the side effect of enabling the extension in the radeon,
r200, and nouveau drivers.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Every driver left in Mesa enables this extension all the time. There's
no reason to let it be optional.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Every driver left in Mesa enables this extension all the time. There's
no reason to let it be optional.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Every driver left in Mesa enables this extension all the time. There's
no reason to let it be optional.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Every driver left in Mesa enables this extension all the time. There's
no reason to let it be optional.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
We've never properly supported more than one address register. There
isn't even a field in prog_src_register or prog_dst_register to indicate
which address register to use if RelAddr!=0.
In the state tracker, clamp MaxAddressRegs against MAX_PROGRAM_ADDRESS_REGS
since many gallium drivers do support more.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65226
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Some Gallium drivers were crashing, because the array was not large enough.
v2: clamp the per-shader maximum in st/mesa, then sum them all up
NOTE: This is a candidate for the stable branches.
The limits should not be different and OpenGL requires both to be at least 32,
which is also the maximum limit on radeon.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Const.MaxTextureImageUnits -> Const.FragmentProgram.MaxTextureImageUnits
Const.MaxVertexTextureImageUnits -> Const.VertexProgram.MaxTextureImageUnits
etc.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Shaders are unified on most hardware (= same limits in all stages).
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
This adds support to the mesa state tracker for ARB_texture_multisample.
hardware doesn't seem to use a different texture instructions, so
I don't think we need to create one for TGSI at this time.
Thanks to Marek for fixes to sample number picking.
v2: idr pointed out a bug in how we picked the max sample counts,
use new internal format chooser interface to pick proper answers.
v3: use st_choose_format directly, it was okay, fix anding of masks.
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The GL_ARB_texture_rg spec says that we need to support both texturing
and rendering for the GL_RED and GL_RG formats. So move the format
check up into the rendertarget_mapping[] list. Also, add
PIPE_FORMAT_R8_UNORM to the list of formats required.
Note: This is a candidate for the stable branches.
Reviewed-by: Marek Olšák <maraeo@gmail.com>
v2: Update to handle BufferSize being -1 and return a NULL sampler
view if the specified range would cause out of bounds access.
Reviewed-by: Brian Paul <brianp@vmware.com>
Acked-by: Ian Romanick <ian.d.romanick@intel.com>
The gallium docs for pipe_screen::is_format_supported() says that
samples==0 or samples==1 both mean that multisampling is not supported.
Return GL_MAX_SAMPLES==0 instead of 1 for consistency with other drivers.
Note: This is a candidate for the 9.0 branch.
Reviewed-by: Marek Olšák <maraeo@gmail.com>
ARB/EXT_timer_query's definition of GL_TIME_ELAPSED match precisely the
subtraction of two GL_TIMESTAMP queries.
And for a lot of drivers, that's precisely how they have to implement
internally -- by emitting two hardware timestamp queries.
So, to simplify driver implementation, simply allow doing so in the state
tracker.
Eventually if no driver implements PIPE_QUERY_TIME_ELAPSED then we could
retire it.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
this adds UBO support to the state tracker, it works with softpipe
as-is.
It uses UARL + CONST[x][ADDR[0].x] type constructs.
v2: don't disable UBOs if geom shaders don't exist (me)
rename upload to bind (calim)
fix 12 -> 13 comparison as comment (calim + brianp)
fix signed->unsigned (Brian)
remove assert (Brian)
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This adds the necessary changes to the st to allow texture buffer object
support if the driver advertises it.
v1.1: remove extra blank line and whitespace
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This should help avoid confusion now that we're using the gl_api enum
to distinguishing between core and compatibility API's. The
corresponding enum value for core API's is API_OPENGL_CORE.
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Matt Turner <mattst88@gmail.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
This adds mesa state tracker support for the new extension,
along with glsl->tgsi conversion to use the new opcodes
where appropriate.
v2: fix assert found running textureSize tests.
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
