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* glsl/builtins: Add missing mix(genType, genType, bvec) built-ins.Kenneth Graunke2012-01-063-1/+11
| | | | | | | | | | | | The IR for mix(float, float, bool) was missing a write mask, causing the IR reader to die horribly. Furthermore, I neglected to add any of the new prototypes to the 1.30 profiles. Fixes oglconform's glsl-bif-com advanced.mix test cases. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44477 Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Fix samplerCubeShadow support in shader compilerAnuj Phogat2011-12-071-1/+1
| | | | | | | | | | | This patch fixes the samplerCubeShadow support in GLSL shader compiler. shader compiler was picking the 'r' texture coordinate for shadow comparison when the expected behaviour is to use 'q' texture coordinate in case of cube shadow maps. Signed-off-by: Anuj Phogat <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Add missing textureSize(samplerCubeShadow, int) variant.Kenneth Graunke2011-11-161-0/+1
| | | | | Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* glsl: Remove textureGradOffset built-ins taking samplerCube parameters.Kenneth Graunke2011-11-103-9/+0
| | | | | | | | | These simply don't exist in the 1.30 specification---none of the Offset variants allow samplerCube. This must have been a cut and paste error from textureGrad, which /does/ allow cubemaps. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Fix misnamed textureProjOffset prototypes in built-in profiles.Kenneth Graunke2011-11-102-62/+62
| | | | | | | | Due to a cut and paste error, these were accidentally misnamed textureProj() rather than textureProjOffset(). Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: Remove texture built-ins with 'bias' from 1.30 VS profile.Kenneth Graunke2011-11-101-118/+4
| | | | | | | | | | | From the GLSL 1.30 spec, section 8.7 "Texture Lookup Functions": "In all functions below, the bias parameter is optional for fragment shaders. The bias parameter is not accepted in a vertex shader." This was a cut and paste mistake. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* glsl: add support for GL_OES_EGL_image_externalChia-I Wu2011-11-034-0/+20
| | | | | | | | | | This extension introduces a new sampler type: samplerExternalOES. texture2D (and texture2DProj) can be used to do a texture look up in an external texture. Reviewed-by: Brian Paul <[email protected]> Acked-by: Jakob Bornecrantz <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Add isinf() and isnan() builtins.Paul Berry2011-10-314-4/+34
| | | | | | | | | | | | | The implementations are as follows: isinf(x) = (abs(x) == +infinity) isnan(x) = (x != x) Note: the latter formula is not necessarily obvious. It works because NaN is the only floating point number that does not equal itself. Fixes piglit tests "isinf-and-isnan fs_basic" and "isinf-and-isnan vs_basic".
* glsl: Add '.ir' extension to builtin IR filesPaul Berry2011-10-3166-3/+9
| | | | | | | | 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 1.30: Fix numerical instabilities in asinhPaul Berry2011-09-281-4/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The formula we were previously using for asinh: asinh x = ln(x + sqrt(x * x + 1)) is numerically unstable: when x is a large negative value, the quantity x + sqrt(x * x + 1) is a small positive value (on the order of 1/(2|x|)). Since the logarithm function is very sensitive in this range, any error in the computation of the square root manifests as a large error in the result. This patch changes to the equivalent formula: asinh x = sign(x) * ln(abs(x) + sqrt(x * x + 1)) which is only slightly more expensive to compute, and is numerically stable for all x. Fixes piglit tests spec/glsl-1.30/execution/built-in-functions/[fv]s-asinh-*. Reviewed-by: Chad Versace <[email protected]> Acked-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* glsl: Defer initialization of built-in functions until they're needed.Kenneth Graunke2011-09-231-2/+4
| | | | | | | | | | | | | | | Very simple shaders don't actually use GLSL built-ins. For example: - gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; - gl_FragColor = vec4(0.0); Both of the shaders used by _mesa_meta_glsl_Clear() also qualify. By waiting to initialize the built-ins until the first time we need to look for a signature, we can avoid the overhead entirely in these cases. Makes piglit run roughly 18% faster (255 vs. 312 seconds). Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* glsl/builtins: Fix invalid float constant in noise4 built-in.Kenneth Graunke2011-09-071-2/+2
| | | | | | | Throwing away the extra numbers ought to match the existing behavior. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl/builtins: Fix invalid vecN constants in hyperbolic functions.Kenneth Graunke2011-09-075-21/+21
| | | | | | | | | | Each of these vecN constants only provided one component, which is illegal. The printed IR is meant to contain exactly as many components as are necessary; the IR reader does not splat single values. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl/builtins: Uncomment textureSize prototypes.Kenneth Graunke2011-08-232-4/+0
| | | | | | Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Dave Airlie <[email protected]>
* texture_builtins.py: Add support for textureSize (txs).Kenneth Graunke2011-08-231-14/+36
| | | | | Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* 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: improve the accuracy of the asin() builtin function.Paul Berry2011-08-011-28/+40
| | | | | | | | | | | | | | | | | | | | | | | | The previous formula for asin(x) was algebraically equivalent to: sign(x)*(pi/2 - sqrt(1-|x|)*(A + B|x| + C|x|^2)) where A, B, and C were arbitrary constants determined by a curve fit. This formula had a worst case absolute error of 0.00448, an unbounded worst case relative error, and a discontinuity near x=0. Changed the formula to: sign(x)*(pi/2 - sqrt(1-|x|)*(pi/2 + (pi/4-1)|x| + A|x|^2 + B|x|^3)) where A and B are arbitrary constants determined by a curve fit. This has a worst case absolute error of 0.00039, a worst case relative error of 0.000405, and no discontinuities. I don't expect a significant performance degradation, since the extra multiply-accumulate should be fast compared to the sqrt() computation. Fixes piglit tests {vs,fs}-asin-float and {vs,fs}-atan-*
* glsl: improve the accuracy of the radians() builtin functionPaul Berry2011-07-281-4/+4
| | | | | | | | | | | The constant used in the radians() function didn't have enough precision, causing a relative error of 1.676e-5, which is far worse than the precision of 32-bit floats. This patch reduces the relative error to 1.14e-9, which is the best we can do in 32 bits. Fixes piglit tests {fs,vs}-radians-{float,vec2,vec3,vec4}. Reviewed-by: Kenneth Graunke <[email protected]>
* glsl/builtins: Actually implement int/ivec variants of abs().Kenneth Graunke2011-06-141-0/+20
| | | | | | | Signed-off-by: Kenneth Graunke <[email protected]> NOTE: This is a candidate for stable release branches (and don't forget to re-run "make builtins" after cherry-picking.)
* glsl/generate_builtins.py: Remove regexp to kill pointer addresses.Kenneth Graunke2011-06-141-4/+0
| | | | | | | | | Commit 56ef62d9885f805bbfb2243dc860ff425d5b4d3b "glsl: Generate readable unique names at print time." changed ir_print_visitor to not generate @0x1234567 suffixes except where necessary. So there's no need to manually remove them. Signed-off-by: Kenneth Graunke <[email protected]>
* glsl: Add compiler support for ARB_shader_texture_lod.Kenneth Graunke2011-05-093-0/+174
| | | | | Signed-off-by: Kenneth Graunke <[email protected]> Tested-by: Marek Olšák <[email protected]>
* glsl: Explicitly specify a type when reading/printing ir_texture.Kenneth Graunke2011-03-141-5/+6
| | | | | | This is necessary for GLSL 1.30+ shadow sampling functions, which return a single float rather than splatting the value to a vec4 based on GL_DEPTH_TEXTURE_MODE.
* texture_builtins.py: Add support for 130-style Shadow sampler variants.Kenneth Graunke2011-03-141-1/+53
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* glsl: Enable GL_OES_texture_3D extension for ES2.Kenneth Graunke2011-02-282-0/+14
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* glsl/builtins: Fix return type for textureSize sampler2DArray variants.Kenneth Graunke2011-02-272-4/+4
| | | | A copy and paste error.
* glsl: Fix use of uninitialized values in _mesa_glsl_parse_state ctor.Kenneth Graunke2011-02-011-0/+2
| | | | | | This has probably existed since e5e34ab18eeaffa465 or so. NOTE: This is a candidate for the 7.9 and 7.10 branches.
* texture_builtins.py: Fix a warning about mixed tabs/spaces.Kenneth Graunke2011-01-311-1/+1
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* glsl/builtins: Uncomment prototypes for texture*Offset functions.Kenneth Graunke2011-01-312-20/+0
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* texture_builtins.py: Generate texture*Offset functions.Kenneth Graunke2011-01-311-5/+80
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* texture_builtins.py: Generalize the "use_proj" field to support offsets.Kenneth Graunke2011-01-311-52/+57
| | | | | | | | Rather than passing "True", pass a bitfield describing the particular variant's features - either projection or offset. This should make the code a bit more readable ("Proj" instead of "True") and make it easier to support offsets in the future.
* texture_builtins.py: Refactor coordinate dimension calculations.Kenneth Graunke2011-01-311-5/+9
| | | | | For offsets, we'll want the straight sampler dimensionality, without the +1 for array types. Create a new function to do that; refactor.
* glsl: Change texel offsets to a single vector rvalue.Kenneth Graunke2011-01-311-1/+1
| | | | | | | | | | | Having these as actual integer values makes it difficult to implement the texture*Offset built-in functions, since the offset is actually a function parameter (which doesn't have a constant value). The original rationale was that some hardware needs these offset baked into the instruction opcode. However, at least i965 should be able to support non-constant offsets. Others should be able to rely on inlining and constant propagation.
* Convert everything from the talloc API to the ralloc API.Kenneth Graunke2011-01-311-4/+4
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* generate_builtins.py: Whitespace fixes.Vinson Lee2011-01-141-7/+7
| | | | Also removed unnecessary semicolons.
* generate_builtins.py: Fix builds using Python 2.5.Vinson Lee2011-01-141-0/+2
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* glsl/builtins: Remove unnecessary (constant bool (1)) from assignments.Kenneth Graunke2011-01-1212-269/+265
| | | | This isn't strictly necessary, but is definitely nicer.
* generate_builtins.py: Add missing import.Vinson Lee2011-01-121-0/+1
| | | | Import sys for sys.exit.
* glsl: Autogenerate builtin_functions.cpp as part of the build process.Kenneth Graunke2011-01-102-40/+9
| | | | | | Python is already necessary for other parts of Mesa, so there's no reason we can't just generate it. This patch updates both make and SCons to do so.
* glsl: Really remove unused "instructions" parameter.Kenneth Graunke2011-01-011-2/+1
| | | | | I forgot about this file, and it didn't show up until I tried to do "make builtins" from a clean build.
* glsl: Remove unused "instructions" parameter.Kenneth Graunke2011-01-011-4/+2
| | | | | | I think was used long ago, when we actually read the builtins into the shader's instruction stream directly, rather than creating a separate shader and linking the two. It doesn't seem to serve any purpose now.
* glsl/builtins: Compute the correct value for smoothstep(vec, vec, vec).Kenneth Graunke2010-12-171-87/+34
| | | | | | | | These mistakenly computed 't' instead of t * t * (3.0 - 2.0 * t). Also, properly vectorize the smoothstep(float, float, vec) variants. NOTE: This is a candidate for the 7.9 and 7.10 branches.
* glsl: Lazily import built-in function prototypes.Kenneth Graunke2010-11-301-1/+0
| | | | | | | | This makes a very simple 1.30 shader go from 196k of memory to 9k. NOTE: This -may- be a candidate for the 7.9 branch, as the benefit is substantial. However, it's not a simple change, so it may be wiser to wait for 7.10.
* glsl: Reimplement the "cross" built-in without ir_binop_cross.Kenneth Graunke2010-11-171-3/+5
| | | | | | We are not aware of any GPU that actually implements the cross product as a single instruction. Hence, there's no need for it to be an opcode. Future commits will remove it entirely.
* glsl: Implement the asinh, acosh, and atanh built-in functions.Kenneth Graunke2010-11-155-4/+79
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* generate_builtins.py: Fix inconsistent use of tabs and spaces warning.Kenneth Graunke2010-11-151-3/+3
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* 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.
* generate_builtins.py: Output large strings as arrays of characters.Kenneth Graunke2010-10-211-2/+14
| | | | | | This works around MSVC's 65535 byte limit, unfortunately at the expense of any semblance of readability and much larger file size. Hopefully I can implement a better solution later, but for now this fixes the build.
* glsl: Add support for GLSL 1.30's modf built-in.Kenneth Graunke2010-10-213-0/+51
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* glsl: Add support for the 1.30 round() built-in.Kenneth Graunke2010-10-143-0/+31
| | | | | | | This implements round() via the ir_unop_round_even opcode, rather than adding a new opcode. We may wish to add one in the future, since it might enable a small performance increase on some hardware, but for now, this should suffice.
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