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This file has been modified in master and removed in feature branch.
This gave a merge conflict I couldn't resolve by removing and git adding
it to index.
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This regression came from commit c0b59420eec5ffdf22a5919d38851c3620b97c09.
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Such TEX instructions will have the TexShadow flag set.
The gl_program::ShadowSamplers field is now set in the linker. We missed
that before.
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This allows code such as "vec4 a = gl_LightSource[i].ambient;" to work.
When a built-in uniform array is indexed with a variable index we need to
"unroll" the whole array into the parameter list (aka constant buffer) because
we don't know which elements may be accessed at compile-time. In the case of
the gl_LightSource array of size [8], we emit 64 state references into the
parameter array (8 elements times 8 vec4s per gl_LightSourceParameters
struct).
Previously, we only allowed constant-indexed references to uniform arrays
(such as gl_LightSource[2].position) which resulted in a single state reference
being added to the parameter array, not 64. We still optimize this case.
Users should be aware that using "gl_LightSource[i].ambient" in their shaders
is a bit expensive since state validation will involve updating all 64
light source entries in the parameter list.
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And update some copyrights.
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This allows things like float[3] x = float[3](1., 2., 3.);
Parsing and AST construction now. Codegen not working yet.
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This allows syntax like "float[8] foo, bar;"
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This includes the sampler2DRect and sampler2DRectShadow types and
the texture2DRect(), texture2DRectProj(), etc. built-in functions.
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GLSL matrices are stored in column-major order while GL_ARB_vertex/fragment_program
use row-major. So, need to use STATE_MATRIX_TRANSPOSE for built-in matrices.
Unfortunately, this means that the expression M * V isn't very efficient since we
need to extract the rows out of M. And that's the typical expression for vertex
transformation: gl_ModelViewProjectionMatrix * gl_Position.
Solve this inefficiency by looking for M*V expressions and replacing them
with V*Transpose(M).
Also, add support for GLSL 1.20's MatrixTranspose, Inverse and InverseTranspose
matrices.
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instruction saturate-write option. Not finished yet.
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properly.
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- generate error on NULL pointers in glShaderSourceARB;
- reinstall program object, if current, in glLinkProgramARB;
- vertex and fragment shaders are optional in program object;
- floor asm was wrongly computed for x86 back-end;
- allow for (void) idiom in function prototypes;
- all fixed-state uniforms are updated;
- local variable initializers are working;
- implement texture* and shadow* functions for vertex processor;
- generate error if too many arguments in general constructor;
- trim unused data in general constructor;
- struct r-value field select was badly relocated;
Changes:
- add derived state gl_fog_attrib::_Scale;
- add derived state gl_light::_CosCutoffNeg;
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- add texture sampling support;
- fix assembly codegen bugs;
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- uniforms (only GetLocation, Uniform1f and Uniform4fv for now for demos);
- fix bugs and optimize array size handling;
- 2D texture sampling (needs Enable(TEXTURE_2D) to work);
- decrease built-in library assembly size by 30%.
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- general constructors allowed;
- implement noise functions (from Stefan Gustavson - thanks!)
- cosmetic stuff.
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rename slang_*_gc_bin.h files to slang_*_gc.h ones;
store built-in library code in a precompiled form only;
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fix syntax errors;
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