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path: root/src/glsl/builtin_function.cpp
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2010-09-22glsl: Rework assignments with write_masks to have LHS chan count match RHS.Eric Anholt
It turns out that most people new to this IR are surprised when an assignment to (say) 3 components on the LHS takes 4 components on the RHS. It also makes for quite strange IR output: (assign (constant bool (1)) (x) (var_ref color) (swiz x (var_ref v) )) (assign (constant bool (1)) (y) (var_ref color) (swiz yy (var_ref v) )) (assign (constant bool (1)) (z) (var_ref color) (swiz zzz (var_ref v) )) But even worse, even we get it wrong, as shown by this line of our current step(float, vec4): (assign (constant bool (1)) (w) (var_ref t) (expression float b2f (expression bool >= (swiz w (var_ref x))(var_ref edge)))) where we try to assign a float to the writemasked-out x channel and don't supply anything for the actual w channel we're writing. Drivers right now just get lucky since ir_to_mesa spams the float value across all the source channels of a vec4. Instead, the RHS will now have a number of components equal to the number of components actually being written. Hopefully this confuses everyone less, and it also makes codegen for a scalar target simpler. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2010-09-18glsl/builtins: Switch comparison functions to just return an expression.Kenneth Graunke
2010-09-18glsl/builtins: Fix equal and notEqual builtins.Kenneth Graunke
Commit 309cd4115b7cba669a0bf858e7809cb6dae90ddf incorrectly converted these to all_equal and any_nequal, which is the wrong operation.
2010-09-13glsl2: Port equal() and notEqual() to ir_unop_all_equal and ir_unop_any_nequalIan Romanick
2010-09-09glsl2: Implement noise[1234] built-in functions using ir_unop_noiseIan Romanick
2010-09-09glsl/builtins: normalize of a negative scalar should be -1.0.Kenneth Graunke
2010-09-08glsl/builtins: Set the API in the fake context.Kenneth Graunke
Otherwise it gets used uninitialized.
2010-09-08glsl2: Clear out profile pointers in _mesa_glsl_release_functionsIan Romanick
Otherwise builtin_profiles contains dangling pointers the next time _mesa_read_profile is called. I suspect this may fix bugzilla #29847, but I was never able to reproduce it.
2010-09-08glsl: Fix for scalar float built-in definitions.Kenneth Graunke
These need abs, and we need more tests.
2010-09-08glsl: regenerate builtinsEric Anholt
2010-09-08glsl: Refresh automatically generated file builtin_function.cpp.Kenneth Graunke
2010-09-08glsl2: Make sure _mesa_glsl_parse_state constructor gets a contextIan Romanick
Fix an major regression in dc754586. Too bad that change was obviously never tested.
2010-09-07glsl: Add built-in function profiles for GLSL ES 1.00.Kenneth Graunke
2010-09-04glsl: Regenerate autogenerated file builtin_function.cpp.Kenneth Graunke
2010-09-01glsl: Add forgotten implementations of equal/notEqual on bvecs.Kenneth Graunke
2010-08-31glsl2: fix bug in atan(y, x) functionBrian Paul
When x==0, the result was wrong. Fixes piglit glsl-fs-atan-1.shader_test
2010-08-30glsl: Clear the static values of builtin function profiles at release.Eric Anholt
When releasing the builtin functions, we were just freeing the memory, not telling the builtin function loader that we had freed its memory. I wish I had done ARB_ES2_compatibility so we had regression testing of this path. Fixes segfault on changing video options in nexuiz.
2010-08-27glsl: Regenerate for double destroy fix.Eric Anholt
2010-08-26glsl: Use a single shared namespace in the symbol table.Kenneth Graunke
As of 1.20, variable names, function names, and structure type names all share a single namespace, and should conflict with one another in the same scope, or hide each other in nested scopes. However, in 1.10, variables and functions can share the same name in the same scope. Structure types, however, conflict with/hide both. Fixes piglit tests redeclaration-06.vert, redeclaration-11.vert, redeclaration-19.vert, and struct-05.vert.
2010-08-24glsl: Include main/core.h.Chia-I Wu
Make glsl include only main/core.h from core mesa.
2010-08-23glsl: Rebuild builtins for any() change.Eric Anholt
2010-08-23glsl: Regenerate builtins with the new sorting.Eric Anholt
2010-08-18glsl: Refresh autogenerated file builtin_function.cpp.Kenneth Graunke
2010-08-17glsl2: Regenerate builtin_function.cpp.Kenneth Graunke
2010-08-16glsl2: Refresh autogenerated file builtin_function.cpp.Kenneth Graunke
2010-08-13glsl2: Rework builtin function generation.Kenneth Graunke
Each language version/extension and target now has a "profile" containing all of the available builtin function prototypes. These are written in GLSL, and come directly out of the GLSL spec (except for expanding genType). A new builtins/ir/ folder contains the hand-written IR for each builtin, regardless of what version includes it. Only those definitions that have prototypes in the profile will be included. The autogenerated IR for texture builtins is no longer written to disk, so there's no longer any confusion as to what's hand-written or generated. All scripts are now in python instead of perl.
2010-08-12glsl2: Use Elements from main/compiler.h instead of open-codingIan Romanick
2010-08-09glsl2: Refresh autogenerated file builtin_function.cpp.Kenneth Graunke
2010-08-02glsl2: Fix expression type in builtin tan().Eric Anholt
Fixes glsl-fs-tan-1.
2010-07-30glsl2: Fix the implementation of atan(y, x).Eric Anholt
So many problems here. One is that we can't do the quadrant handling for all the channels at the same time, so we call the float(y, x) version multiple times. I'd also left out the x == 0 handling. Also, the quadrant handling was broken for y == 0, so there was a funny discontinuity on the +x side if you plugged in obvious values to test. I generated the atan(float y, float x) code from a short segment of GLSL and pasted it in by hand. It would be nice to automate that somehow. Fixes: glsl-fs-atan-1 glsl-fs-atan-2
2010-07-28glsl2: Fix outerProduct builtin.Kenneth Graunke
The type signatures were completely backwards.
2010-07-22glsl2: Refresh autogenerated file builtin_function.cpp.Kenneth Graunke
2010-07-22glsl2: Fix the type of (1.0 - arg2) for mix(gen, gen, float).Eric Anholt
Previously, we'd constant-fold up a value of vec4(1.0 - arg2, 0, 0, 0). Fixes: glsl1-mix(vec4) function
2010-07-21linker: Link built-in functions instead of including them in every shaderIan Romanick
This is an invasive set of changes. Each user shader tracks a set of other shaders that contain built-in functions. During compilation, function prototypes are imported from these shaders. During linking, the shaders are linked with these built-in-function shaders just like with any other shader.
2010-07-20glsl2: Fix asin() implementation.Eric Anholt
I'd flipped around the order of two operations in paren-balancing adventures, and left out the multiply by sign(x) required for negative x. Fixes: glsl1-acos(vec4) function glsl1-asin(vec4) function glsl1-atan(vec4) function
2010-07-20glsl2: notEqual() produces a boolean value, not the base type of the args.Eric Anholt
Fixes: glsl1-vector relational (bvec2 ==,!=) glsl1-vector relational (vec4 !=)
2010-07-19glsl2: Use Elements macroIan Romanick
2010-07-19glsl2: Fix the expression type for atan's pi * sign(y).Eric Anholt
Fixes CorrectFunction.vert.
2010-07-18glsl2: Make cross() be an expression operation.Eric Anholt
ARB_fp, ARB_vp, Mesa IR, and the 965 vertex shader all have instructions for cross. Shaves 12 Mesa instructions off of a 66-instruction shader I have.
2010-07-14Refresh autogenerated file builtin_function.cpp.Kenneth Graunke
2010-07-07glsl: Fix the setup of refract()'s output for vec3/vec4 and k < 0.0.Eric Anholt
caught by valgrind.
2010-07-02Refresh autogenerated file builtin_function.cpp.Kenneth Graunke
2010-07-01glsl2: Add ir_unop_fract as an expression type.Eric Anholt
Most backends will prefer seeing this to seeing (a - floor(a)), so represent it explicitly.
2010-06-30glsl2: Don't break sign() down by vector components.Eric Anholt
2010-06-30glsl2: Fix reversed value of step().Eric Anholt
It's 0.0 if x < edge, not 1.0. Partial fix for glsl-fs-step.
2010-06-30glsl2: Fix up the implementation of fract() for vector types.Eric Anholt
There's no need to split each vector component out, just do vector ops.
2010-06-24glsl2: Move the compiler to the subdirectory it will live in in Mesa.Eric Anholt