summaryrefslogtreecommitdiffstats
path: root/src/glsl/builtins/ir/atan
Commit message (Collapse)AuthorAgeFilesLines
* glsl: Add '.ir' extension to builtin IR filesPaul Berry2011-10-311-128/+0
| | | | | | | | This patch adds the extension '.ir' to all the files in src/glsl/builtins/ir/, and changes generate_builtins.py so that it no longer globs on '*' to find the files to build. This prevents spurious files (such as EMACS' infamous *~ backup files) from breaking the build.
* glsl: improve the accuracy of the atan(x,y) builtin function.Paul Berry2011-08-011-1/+3
| | | | | | | | | | The previous formula for atan(x,y) returned a value of +/- pi whenever |x|<0.0001, and used a formula based on atan(y/x) otherwise. This broke in cases where both x and y were small (e.g. atan(1e-5, 1e-5)). This patch modifies the formula so that it returns a value of +/- pi whenever |x|<1e-8*|y|, and uses the formula based on atan(y/x) otherwise.
* glsl/builtins: Remove unnecessary (constant bool (1)) from assignments.Kenneth Graunke2011-01-121-14/+14
| | | | This isn't strictly necessary, but is definitely nicer.
* glsl/builtins: Clean up some ugly autogenerated code in atan.Kenneth Graunke2010-11-031-20/+5
| | | | | | In particular, calling the abs function is silly, since there's already an expression opcode for that. Also, assigning to temporaries then assigning those to the final location is rather redundant.
* glsl/builtins: Rename 'x' to 'y_over_x' in atan(float) implementation.Kenneth Graunke2010-11-031-4/+4
| | | | For consistency with the vec2/vec3/vec4 variants.
* glsl/builtins: Convert assignments to new format (with write mask).Kenneth Graunke2010-09-041-29/+20
|
* glsl2: fix bug in atan(y, x) functionBrian Paul2010-08-311-7/+3
| | | | When x==0, the result was wrong. Fixes piglit glsl-fs-atan-1.shader_test
* glsl2: Rework builtin function generation.Kenneth Graunke2010-08-131-0/+154
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.