| Commit message (Collapse) | Author | Age | Files | Lines |
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Reviewed-by: Brian Paul <[email protected]>
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Reviewed-by: Brian Paul <[email protected]>
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Consider GLSL code such as:
const ivec2 offsets[] =
ivec2[](ivec2(-1, -1), ivec2(-1, 0), ivec2(-1, 1),
ivec2(0, -1), ivec2(0, 0), ivec2(0, 1),
ivec2(1, -1), ivec2(1, 0), ivec2(1, 1));
ivec2 offset = offsets[<non-constant expression>];
Both i965 and nv50 currently handle this very poorly. On i965, this
becomes a pile of MOVs to load the immediate constants into registers,
a pile of scratch writes to move the whole array to memory, and one
scratch read to actually access the value - effectively the same as if
it were a non-constant array.
We'd much rather upload large blocks of constant data as uniform data,
so drivers can simply upload the data via constbufs, and not have to
populate it via shader instructions.
This is currently non-optional because both i965 and nouveau benefit
from it, and according to Marek radeonsi would benefit today as well.
(According to Tom, radeonsi may want to handle this itself in the long
term, but we can always add a flag when it becomes useful.)
Improves performance in a terrain rendering microbenchmark by about 2x,
and cuts the number of instructions in about half. Helps a lot of
"Natural Selection 2" shaders, as well as one "HOARD" shader.
total instructions in shared programs: 5473459 -> 5471765 (-0.03%)
instructions in affected programs: 5880 -> 4186 (-28.81%)
v2: Use ir_var_hidden to avoid exposing the new uniform via the GL
uniform introspection API.
v3: Alphabetize Makefile.sources properly.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77957
Signed-off-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Kenneth Graunke <[email protected]>
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_mesa_link_shader_program already calls _mesa_clear_shader_program_data
before calling link_shaders, so this is already done.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Later patches will give every ir_var_temporary the same name in release
builds. Adding a bunch of variables named "compiler_temp" to the symbol
table can only cause problems.
No change Valgrind massif results for a trimmed apitrace of dota2.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Also move num_state_slots inside ir_variable_data for better packing.
The payoff for this will come in a few more patches.
No change Valgrind massif results for a trimmed apitrace of dota2.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>
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The payoff for this will come in a few more patches.
No change Valgrind massif results for a trimmed apitrace of dota2.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>
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Check calloc return value while adding build-in functions.
Signed-off-by: Juha-Pekka Heikkila <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
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With GLES we don't give any kind of warning in case we don't
write to gl_position. This patch makes changes so that we
generate a warning in case of GLES (VER < 300) and an error
in case of GL.
Signed-off-by: Kalyan Kondapally <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
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Converts gl_VertexID to (gl_VertexIDMESA + gl_BaseVertex). gl_VertexIDMESA
is backed by SYSTEM_VALUE_VERTEX_ID_ZERO_BASE, and gl_BaseVertex is backed
by SYSTEM_VALUE_BASE_VERTEX.
v2: Put the enum in struct gl_constants and propoerly resolve the scope
in C++ code. Fix suggested by Marek.
v3: Reabase on Matt's foreach_in_list changes (was using foreach_list).
v4 (Ken): Use a systemvalue instead of a uniform because
STATE_BASE_VERTEX has been removed.
v5: Use a boolean to select lowering, and only allow one lowering
method. Suggested by Ken.
v6 (Ken): Replace strcmp against literal "gl_BaseVertex"/"gl_VertexID"
with SYSTEM_VALUE enum checks, for efficiency.
v7: Rebase on context constant initialization work.
Signed-off-by: Ian Romanick <[email protected]>
Signed-off-by: Kenneth Graunke <[email protected]>
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The next patch will use this function in a different file.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>
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According to GLSL-ES Spec(i.e. 1.0, 3.0), gl_Position value is undefined
after the vertex processing stage if we don't write gl_Position. However,
GLSL 1.10 Spec mentions that writing to gl_Position is mandatory. In case
of GLSL-ES, it's not an error and atleast the linking should pass.
Currently, Mesa throws an linker error in case we dont write to gl_position
and Version is less then 140(GLSL) and 300(GLSL-ES). This patch changes
it so that we don't report an error in case of GLSL-ES.
Signed-off-by: Kalyan Kondapally <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83380
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If we fails in reserve_explicit_locations, we leak uniform_map.
Reported-by: coverity scanner.
Reviewed-by: Tapani Pälli <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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Reviewed-by: Anuj Phogat <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Ilia Mirkin <[email protected]>
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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 <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
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Check if non-zero streams are used. Fail to link if emitting to unsupported
streams or emitting to non-zero streams with output type other than GL_POINTS.
Reviewed-by: Chris Forbes <[email protected]>
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Signed-off-by: Juha-Pekka Heikkila <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Patch initializes the UniformRemapTable for explicit locations. This
needs to happen before optimizations to make sure all inactive uniforms
get their explicit locations correctly.
v2: fix initialization bug, introduce define for inactive uniforms (Ian)
Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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This was a work-around to allow linking a program with only a fragment
shader in a GLES context. Now that we have GL_EXT_separate_shader_objects
in GLES contexts, we can just use that.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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Signed-off-by: Ian Romanick <[email protected]>
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Link error conditions added in previous patch are equally applicable
to GL_ARB_fragment_coord_conventions implementation. Extension's spec
says:
"If gl_FragCoord is redeclared in any fragment shader in a program,
it must be redeclared in all the fragment shaders in that program
that have a static use of gl_FragCoord. All redeclarations of
gl_FragCoord in all fragment shaders in a single program must have
the same set of qualifiers."
Signed-off-by: Anuj Phogat <[email protected]>
Cc: <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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GLSL 1.50 spec says:
"If gl_FragCoord is redeclared in any fragment shader in a program,
it must be redeclared in all the fragment shaders in that
program that have a static use gl_FragCoord. All redeclarations of
gl_FragCoord in all fragment shaders in a single program must
have the same set of qualifiers."
This patch causes the shader link to fail if we have multiple fragment
shaders with conflicting layout qualifiers for gl_FragCoord.
V2: Restructure the code and add conditions to correctly handle the
following case:
fragment shader 1:
layout(origin_upper_left) in vec4 gl_FragCoord;
void main()
{
foo();
gl_FragColor = gl_FragData;
}
fragment shader 2:
layout(pixel_center_integer) in vec4 gl_FragCoord;
void foo()
{
}
V3:
Allow linking in the following case:
fragment shader 1:
void main()
{
foo();
gl_FragColor = gl_FragCoord;
}
fragment shader 2:
in vec4 gl_FragCoord;
void foo()
{
...
}
Signed-off-by: Anuj Phogat <[email protected]>
Cc: <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Currently overlapping locations of input variables are not allowed for all
the shader types in OpenGL and OpenGL ES.
From OpenGL ES 3.0 spec, page 56:
"Binding more than one attribute name to the same location is referred
to as aliasing, and is not permitted in OpenGL ES Shading Language
3.00 vertex shaders. LinkProgram will fail when this condition exists.
However, aliasing is possible in OpenGL ES Shading Language 1.00 vertex
shaders."
Taking in to account what different versions of OpenGL and OpenGL ES specs
say about aliasing:
- It is allowed only on vertex shader input attributes in OpenGL (2.0 and
above) and OpenGL ES 2.0.
- It is explictly disallowed in OpenGL ES 3.0.
Fixes Khronos CTS failing test:
explicit_attrib_location_vertex_input_aliased.test
See more details about this at below mentioned khronos bug.
V2: Fix the case where location exceeds the maximum allowed attribute
location.
V3: Simplify the condition added in V2.
Signed-off-by: Anuj Phogat <[email protected]>
Cc: "9.2 10.0 10.1" <[email protected]>
Bugzilla: Khronos #9609
Reviewed-by: Ian Romanick <[email protected]>
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Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Now that we pass in gl_shader_compiler_options, it makes sense to just
use options->MaxUnrollIterations, rather than passing a separate
parameter.
Half of the invocations already passed options->MaxUnrollIterations,
while the other half passed in a hardcoded value of 32.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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The next few patches will introduce an optimization that only works when
integers are not represented as floating point values.
v2: Re-word-wrap a line, as requested by Ian Romanick.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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Grab the parsed invocation count, check for consistency
during linking, and finally save the result in
gl_shader_program Geom.Invocations.
Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Paul Berry <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
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GL_ARB_ES2_compatibility doesn't say anything about shader linking
when one of the shaders (vertex or fragment shader) is absent. So,
the extension shouldn't change the behavior specified in GLSL
specification.
Tested the behavior on proprietary linux drivers of NVIDIA and AMD.
Both of them allow linking a version 100 shader program in OpenGL
context, when one of the shaders is absent.
Makes following Khronos CTS tests to pass:
successfulcompilevert_linkprogram.test
successfulcompilefrag_linkprogram.test
Cc: [email protected]
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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v2: Add comment about the reason why image variables take up space
from the default uniform block.
Reviewed-by: Paul Berry <[email protected]>
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Fixes piglit test:
spec/ARB_compute_shader/linker/mix_compute_and_non_compute
Reviewed-by: Jordan Justen <[email protected]>
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Reviewed-by: Jordan Justen <[email protected]>
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Linker loops that iterate through all the stages in the pipeline need
to use MESA_SHADER_FRAGMENT as a bound, so that we can add an
additional MESA_SHADER_COMPUTE stage, without it being erroneously
included in the pipeline.
Reviewed-by: Matt Turner <[email protected]>
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Rather than maintain separately named arrays and counts for vertex,
geometry, and fragment shaders, just maintain these as arrays indexed
by the gl_shader_type enum.
v2: When there is neither a vertex nor a geometry shader, set
prog->LastClipDistanceArraySize = 0, and clarify that the values is
not used.
Reviewed-by: Chris Forbes <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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Unnamed record types are assigned to separate types per stage, e.g. if
uniform struct { ... } a;
is defined in both vertex and fragment shader, two separate types will
result with different names. When linking the shader, this results in a
type conflict. However, there is no reason why this should not be
allowed according to GLSL specifications. Compare and match record types
when linking shader stages to avoid this conflict.
Reviewed-by: Matt Turner <[email protected]>
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When handling function calls, we often want to walk through the list of
formal parameters and list of actual parameters at the same time.
(Both are guaranteed to be the same length.)
Previously, we used a pattern of:
exec_list_iterator 1st_iter = <1st list>.iterator();
foreach_iter(exec_list_iterator, 2nd_iter, <2nd list>) {
...
1st_iter.next();
}
This was awkward, since you had to manually iterate through one of
the two lists.
This patch introduces a foreach_two_lists macro which safely walks
through two lists at the same time, so you can simply do:
foreach_two_lists(1st_node, <1st list>, 2nd_node, <2nd list>) {
...
}
v2: Rename macro from foreach_list2 to foreach_two_lists, as suggested
by Ian Romanick.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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foreach_iter and exec_list_iterators have been deprecated for some time now;
we just hadn't ever bothered to convert code to the newer foreach_list
and foreach_list_safe macros.
In these cases, we aren't editing the list, so we can use foreach_list
rather than foreach_list_safe.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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These are replaced with
ctx->Const.Program[MESA_SHADER_{VERTEX,FRAGMENT,GEOMETRY}]. In
patches to follow, this will allow us to replace a lot of ad-hoc logic
with a variable index into the array.
With the exception of the changes to mtypes.h, this patch was
generated entirely by the command:
find src -type f '(' -iname '*.c' -o -iname '*.cpp' -o -iname '*.py' \
-o -iname '*.y' ')' -print0 | xargs -0 sed -i \
-e 's/Const\.VertexProgram/Const.Program[MESA_SHADER_VERTEX]/g' \
-e 's/Const\.GeometryProgram/Const.Program[MESA_SHADER_GEOMETRY]/g' \
-e 's/Const\.FragmentProgram/Const.Program[MESA_SHADER_FRAGMENT]/g'
Suggested-by: Brian Paul <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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This reduces confusion since gl_shader::Type is sometimes
GL_SHADER_PROGRAM_MESA but is more frequently
GL_SHADER_{VERTEX,GEOMETRY,FRAGMENT}. It also has the advantage that
when switching on gl_shader::Stage, the compiler will alert if one of
the possible enum types is unhandled. Finally, many functions in
src/glsl (especially those dealing with linking) already use
gl_shader_stage to represent pipeline stages; using gl_shader::Stage
in those functions avoids the need for a conversion.
Note: in the process I changed _mesa_write_shader_to_file() so that if
it encounters an unexpected shader stage, it will use a file suffix of
"????" rather than "geom".
Reviewed-by: Brian Paul <[email protected]>
v2: Split from patch "mesa: Store gl_shader_stage enum in gl_shader objects."
Reviewed-by: Kenneth Graunke <[email protected]>
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Previously, we had an enum called gl_shader_type which represented
pipeline stages in the order they occur in the pipeline
(i.e. MESA_SHADER_VERTEX=0, MESA_SHADER_GEOMETRY=1, etc), and several
inconsistently named functions for converting between it and other
representations:
- _mesa_shader_type_to_string: gl_shader_type -> string
- _mesa_shader_type_to_index: GLenum (GL_*_SHADER) -> gl_shader_type
- _mesa_program_target_to_index: GLenum (GL_*_PROGRAM) -> gl_shader_type
- _mesa_shader_enum_to_string: GLenum (GL_*_{SHADER,PROGRAM}) -> string
This patch tries to clean things up so that we use more consistent
terminology: the enum is now called gl_shader_stage (to emphasize that
it is in the order of pipeline stages), and the conversion functions are:
- _mesa_shader_stage_to_string: gl_shader_stage -> string
- _mesa_shader_enum_to_shader_stage: GLenum (GL_*_SHADER) -> gl_shader_stage
- _mesa_program_enum_to_shader_stage: GLenum (GL_*_PROGRAM) -> gl_shader_stage
- _mesa_progshader_enum_to_string: GLenum (GL_*_{SHADER,PROGRAM}) -> string
In addition, MESA_SHADER_TYPES has been renamed to MESA_SHADER_STAGES,
for consistency with the new name for the enum.
Reviewed-by: Kenneth Graunke <[email protected]>
v2: Also rename the "target" field of _mesa_glsl_parse_state and the
"target" parameter of _mesa_shader_stage_to_string to "stage".
Reviewed-by: Brian Paul <[email protected]>
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This patch replaces the following pattern:
foo bar[MESA_SHADER_TYPES] = {
...
};
With:
foo bar[] = {
...
};
STATIC_ASSERT(Elements(bar) == MESA_SHADER_TYPES);
This way, when a new shader type is added in a future version of Mesa,
we will get a compile error to remind us that the array needs to be
updated.
Reviewed-by: Brian Paul <[email protected]>
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This argument was carrying the name of the shader target (as a
string). We can get this just as easily by calling
_mesa_shader_enum_to_string().
Reviewed-by: Brian Paul <[email protected]>
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We already have a function for converting a shader type index to a
string: _mesa_shader_type_to_string().
Reviewed-by: Brian Paul <[email protected]>
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