This commits adds the _mesa_format_to_array function that determines if the
given format can be represented as an array format and computes the array
format parameters. This is a direct helper function for using
_mesa_swizzle_and_convert
v2: Better documentation and commit message
v3: Fixed a potential segfault from an invalid endianness swizzle
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Most format conversion operations required by GL can be performed by
converting one channel at a time, shuffling the channels around, and
optionally filling missing channels with zeros and ones. This adds a
function to do just that in a general, yet efficient, way.
v2:
* Add better comments including full docs for functions
* Don't use __typeof__
* Use inline helpers instead of writing out conversions by hand,
* Force full loop unrolling for better performance
v3: Add another set of parens around the MAX_INT macro
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
v2: Move the MESA_FORMAT_SWIZZLE enum to the top of the file
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Mesa hasn't supported color-indexed textures for some time. This is 0 for
all texture formats, so we don't need to store it.
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Instead of a having all of the format metadata in a gigantic hard-to-edit
array of type struct format_info, we now have a human-readable CSV file.
The CSV file also contains more format information than the format_info
struct contained so we can potentially make format_info more detailed later.
The python to generate the format information was added the previous
commit. This commit turns it on in both automake and scons builds.
v2: Split into two commits and stuff to generate format_info.c from scons
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This adds a python script called format_info.py that is used to generate a
single format_info.c file that contains the filled-out format_info array.
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
The basic concept for the format parser was taken from the format CSV
parser in gallium/auxilliary/util. However, this one has been altered in a
number of ways:
* Removed big endian vs. little endian stuff (mesa doesn't need it)
* Better documentation: Almost every method has a full docstring
* An actual Swizzle class with methods for composition and inverses
* Over-all cleaner (in my opinion) implementation and class interactions
* A few bug fixes
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Specify the quad's Z position in clip coordinate space, not
normalized Z space. Use viewport scale, translation = 0.5, 0.5.
Before, we were specifying the quad's Z position in [0,1] and using
viewport scale=1.0, translate=0.0. That works fine, unless your
driver needs to work in clip coordinate space and needs to
reconstruct viewport near/far values from the scale/translation
factors. The VMware svga driver falls into that category.
When we did that reconstruction we wound up with near=-1 and far=1
which are outside the limits of [0,1]. In some cases, this caused
the quad to be drawn at the wrong depth. In other cases it was
clipped away.
Fixes some scissored depth clears with VMware driver. This should
have no effect on other drivers. We're already using these values
for the glBitmap and glDraw/CopyPixels code.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Compute the bitmask of supported array types once instead of every
time we call a GL vertex array function.
Reviewed-by: Matthew McClure <mcclurem@vmware.com>
This was a regression introduced by commit
f4b0ab7afd ('st/mesa: fix incorrect size
of UBO declarations') which caused an assertion failure while compiling
shaders of e.g. UE4 demos.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81834
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
According to the GL spec the only fragment operations that should affect
glBlitFramebuffer are “the pixel ownership test, the scissor test, and sRGB
conversion”. That implies that dithering should not be performed so we need to
disable it when implementing the blit with a render.
Before commit 05b52efbc9 the dithering state would be left as whatever the
application picks (the default being GL_TRUE) and after that commit it was
explicitly enabled. Neither of these were correct.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81828
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Or the build will fail due to unresolved symbols.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Or the build will fail due to unresolved symbols.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Or the build will fail due to unresolved symbols.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Or the build will fail due to unresolved symbols.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Add documentation for TEX2/TXL2/TXB2 tgsi opcodes. Also, the texture opcode
documentation wasn't very accurate so fix this up a bit.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
In particular need to handle TEX2/TXB2/TXL2 opcodes.
cube map shadow with bias already used TXB2 which didn't work before
at all, despite that there's by default no piglit change (but using
no_quad_lod and no_rho_opt indeed passes some more tex-miplevel-selection
tests).
The actual sampling code still won't handle cube map arrays.
Reviewed-by: Brian Paul <brianp@vmware.com>
This just covers the resource side of things, not the actual sampling.
Here things are trivial as cube map arrays are identical to 2d arrays in
all respects.
Reviewed-by: Brian Paul <brianp@vmware.com>
We would generate EGL_BAD_CONFIG because _eglGetContextAPIBit
returns zero for the combination of EGL_OPENGL_ES_API and a major
version > 3. By just returning zero, the caller can't tell the
difference between a bad version (which should generate
EGL_BAD_MATCH) and a bad API (which should generate
EGL_BAD_CONFIG). This patch causes us to filter out major
versions > 3 at a point where we can generate the correct error.
Fixes gles3 Khronos CTS test:
egl_create_context.egl_create_context
V2: Fix commit message as suggested by Ian.
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Changes in the patch will cause datatype to be computed
correctly for 8 and 16 bit integer formats. For example:
GL_RG8I, GL_RG16I etc.
Fixes many failures in gles3 Khronos CTS test:
copy_tex_image_conversions_required
copy_tex_image_conversions_forbidden
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
We currently get red bits from ctx->DrawBuffer->Visual.redBits
by making a false assumption that the texture we're writing to
(in glCopyTexImage2D()) is used as a DrawBuffer.
Fixes many failures in gles3 Khronos CTS test:
copy_tex_image_conversions_required
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
GL_TEXTURE_CUBE_MAP is an allowed texture target in glTexStorage2D()
and is allowed to be used (like GL_TEXTURE_2D) with compressed internal
formats.
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Fixes many failures in gles3 Khronos CTS test: packed_pixels
V2: Add the check for alpha bits to avoid confusion.
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Function is utilized by next patch in the series.
V2: Add missing formats.
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
V2: Declare the function in teximage.h
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Previously we had to keep unreachable global symbols in the symbol table
because the symbol table is used during linking. Having the symbol
table retain pointers to freed memory... what could possibly go wrong?
At the same time, this meant that we kept live references to tons of
memory that was no longer needed.
New strategy: destroy the old symbol table, and make a new one from the
reachable symbols.
Valgrind massif results for a trimmed apitrace of dota2:
n time(i) total(B) useful-heap(B) extra-heap(B) stacks(B)
Before (32-bit): 59 40,642,425,451 76,337,968 69,720,886 6,617,082 0
After (32-bit): 46 40,661,487,174 75,116,800 68,854,065 6,262,735 0
Before (64-bit): 79 37,179,441,771 106,986,512 98,112,095 8,874,417 0
After (64-bit): 64 37,200,329,700 104,872,672 96,514,546 8,358,126 0
A real savings of 846KiB on 32-bit and 1.5MiB on 64-bit.
v2: (by Kenneth Graunke) Just add the ir_function from the IR stream,
rather than looking it up in the symbol table; they're now
identical.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Piglit's spec/glsl-1.10/linker/override-builtin-{const,uniform}-05 tests
do the following:
1. Call abs(float) - a built-in function.
2. Create a user-defined replacement for abs(float).
3. Call abs(float) again - now the user function.
At step 1, we created an ir_function which included the built-in
signature, added it to the symbol table, and emitted it into the IR
stream.
Then, when processing the function definition at step 2, we'd see that
there was already an ir_function. But, since there were no user-defined
functions, we skipped over a bunch of code, and ended up creating a
second one. This new ir_function shadowed the original in the symbol
table, but both ended up in the IR stream.
This results in an awkward situation where searching for an ir_function
via the symbol table, a forward linked list walk, and a reverse linked
list walk may return different ir_functions. This seems undesirable.
This patch instead re-uses the existing ir_function, putting both
built-in and user-defined signatures in the same one. The previous
patch's additional filtering ensures everything continues working.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Historically, we've implemented the rules for overriding built-in
functions by creating multiple ir_functions and relying on the symbol
table to hide the one containing built-in functions. That works, but
has a few drawbacks, so the next patch will change it.
Instead, we'll have a single ir_function for a particular name, which
will contain both built-in and user-defined signatures. Passing an
extra parameter to matching_signature makes it easy to ignore built-ins
when they're supposed to be hidden.
I didn't add the parameter to exact_matching_signature since it wasn't
necessary.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
On Haswell, this cuts 1-3 instructions from 183 vertex shaders in
"Shadowrun Returns", "Shatter", and "Trine 2." It adds 2 instructions
to a single fragment shader in "Closure."
total instructions in shared programs: 278803 -> 278546 (-0.09%)
instructions in affected programs: 41930 -> 41673 (-0.61%)
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
This code was attemping to align the base of the structure to the required
alignment of the structure. However, it had two problems:
1. It was aligning the target structure member, not the base of the
structure.
2. It was calculating the alignment based on the members previous to the
target member instead of all the members of the structure.
Fixes gles3conform failures in:
ES3-CTS.shaders.uniform_block.random.nested_structs.6
ES3-CTS.shaders.uniform_block.random.nested_structs_arrays_instance_arrays.2
ES3-CTS.shaders.uniform_block.random.nested_structs_arrays_instance_arrays.6
ES3-CTS.shaders.uniform_block.random.all_per_block_buffers.5
ES3-CTS.shaders.uniform_block.random.all_per_block_buffers.19
ES3-CTS.shaders.uniform_block.random.all_shared_buffer.0
ES3-CTS.shaders.uniform_block.random.all_shared_buffer.2
ES3-CTS.shaders.uniform_block.random.all_shared_buffer.6
ES3-CTS.shaders.uniform_block.random.all_shared_buffer.12
v2: Fix rebase failure noticed by Matt.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
