Clean up/resolve a bunch of TODO, which included implementing pixel_center_integer and origin_upper_left and adjusting what versions see legacy texturing names.
git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23874 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich
63
Todo.txt
63
Todo.txt
@@ -12,40 +12,49 @@ Link Validation
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- statically consumed input not produced by previous stage
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- give error for sharing a packed block
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- 1.2: matching initializers for uniforms
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- 1.3: only statically used built-ins have to be redeclared as flat
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- 1.5: matching between gl_PerVertex blocks and gl_PerFragment blocks
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- 1.3: deprecated mixing fixed vertex/fragment stage with programmable fragment/vertex stage.
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- 4.3: compute shader not combined with any other stages
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- 4.3: remove cross-version linking restrictions.
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- 4.3: Allow mismatches in interpolation and auxiliary qualification across stages.
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- 4.4: A stage contains two different blocks, each with no instance name, where the blocks contain a member with the same name.
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Intra-stage linking
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- ES 3.0: location aliasing/overlap (except desktop vertex shader inputs)
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+ ES 3.0: fragment outputs all have locations, if more than one
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Intra-stage linking, single shader
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- limits checking:
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- number of texture image units
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- texel offsets (or compile-time?)
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- number of input/output compononents
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- tessellation limits
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- ...
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+ exactly one main
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+ Non ES: type consistency check of uniforms, globals, ins, and outs
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+ Non ES: value checking of global const initializers
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+ Non ES: value checking of uniform initializers
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+ Non ES: location match
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+ ES 3.0: fragment outputs all have locations, if more than one
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- ES 3.0: location aliasing/overlap (except desktop vertex shader inputs)
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- Non ES: binding overlap?
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- Non ES: gl_TexCoord can only have a max array size of up to gl_MaxTextureCoords
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+ recursion for functions
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- Non ES: block matching
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- Non ES: component/binding/index/offset match check
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- Non ES: geometry shader input array sizes and input layout qualifier declaration
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- Non ES: compute shader layout(local_size_*) matching
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+ mixed es/non-es profiles are an error
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- Non ES: Even the potential for recursion through subroutine uniforms is an error.
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- Non ES: matching redeclarations of interface blocks
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+ Non ES: geometry shader input array sizes and input layout qualifier declaration
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- Non ES: read or write to both gl_ClipVertex and gl_ClipDistance
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- Non ES: write to only one of gl_FragColor, gl_FragData, or user-declared
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- 1.50: at least one geometry shader says input primitive and at least one says output primitive...
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- 1.50: at least one geometry shader says max_vertices...
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- 1.50: match between all explicit input array sizes and input primitive
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- 4.3: Be clear that early_fragment_tests is only needed in one fragment-stage compilation unit.
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- 4.3: Be clear that implicit array sizing is only within a stage, not cross stage.
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- 4.4: overlapping transform/feedback offsets, offset/stride overflow checks, and stride matching
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- 4.4: 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
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- 4.4: An interface contains two different blocks, each with no instance name, where the blocks contain a member with the same name.
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- 4.4: component aliasing (except desktop vertex shader inputs)
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Intra-stage linking, multiple shader
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+ Non ES: type consistency check of uniforms, globals, ins, and outs
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+ Non ES: value checking of global const initializers
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+ Non ES: value checking of uniform initializers
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+ Non ES: location match
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+ recursion for functions
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- Non ES: block matching
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- Non ES: component/binding/index/offset match check
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- Non ES: compute shader layout(local_size_*) matching
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+ mixed es/non-es profiles are an error
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- Non ES: Even the potential for recursion through subroutine uniforms is an error.
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- Non ES: matching redeclarations of interface blocks
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- 1.50: match between all explicit input array sizes and input primitive
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- 4.3: early_fragment_tests contradictions
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- 4.3: implicit array sizing is cross shader within a stage
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- 4.4: overlapping transform/feedback offsets, offset/stride overflow checks, and stride matching
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- 4.4: 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
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Shader Functionality to Implement/Finish
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ESSL 2.0 (#version 100)
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@@ -53,19 +62,16 @@ Shader Functionality to Implement/Finish
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+ implement non-inductive array accesses limitation detection
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ESSL 3.0
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- "const" compile-time constant propagation in the front-end has to be complete, for all built-in functions
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- add limitation around #define GL_FRAGMENT_PRECISION_HIGH 1 ?
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GLSL 1.2
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+ Handle multiple compilation units per stage
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+ Allow initializers on uniform declarations
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+ signature matching takes type conversions into account, ambiguity is an error
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- allow constructors to contain non-dereferenced arrays?
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- bug: allow constructors to contain non-dereferenced arrays?
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GLSL 1.3
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. flat is for both user and predeclared built-in in/out variables
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GLSL 1.3 (Non-ES)
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+ flat redeclaration of built-in variables
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- Preprocessor token pasting (##), ## does macro expansion after pasting not before
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- non-perspective (linear) interpolation (noperspective)
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+ non-perspective (linear) interpolation (noperspective)
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+ add gl_ClipDistance[] to both vertex and fragment shaders
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- only statically used built-ins have to be redeclared as flat
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+ Deprecated gl_ClipVertex
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+ deprecate almost all built-in state
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+ ftransform() is deprecated
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@@ -163,7 +169,7 @@ Shader Functionality to Implement/Finish
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- Add built-in functions to pack/unpack 16 bit floating-point numbers (ARB_shading_language_pack2f).
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- packHalf2x16 and unpackHalf2x16
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- packSnorm2x16and unpackSnorm2x16
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- Add gl_FragDepthlayout qualifiers to communicate what kind of changes will be made to gl_FragDepth(GL_AMD_conservative depth).
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- Add gl_FragDepth layout qualifiers to communicate what kind of changes will be made to gl_FragDepth (GL_AMD_conservative depth).
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+ Add C-style curly brace initializer lists syntax for initializers. Full initialization of aggregates is required when these are used.
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- Allow .length() to be applied to vectors and matrices, returning the number of components or columns.
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+ Clarify that .length() returns an int type and can be used as a constant integer expression.
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@@ -188,7 +194,7 @@ Shader Functionality to Implement/Finish
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member, so that must a have valid index.
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- Arrays of other objects (uniform blocks) containing implicitly sized arrays will have the same implicit size for all
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elements of the array.
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- Arrays of arrays are now supported, as per the GL_ARB_arrays_of_arraysextension.
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- Arrays of arrays are now supported, as per the GL_ARB_arrays_of_arrays extension.
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- Compute shaders are now supported, as per the GL_ARB_compute_shader extension.
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- Added imageSize() built-ins to query the dimensions of an image.
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- Define robust out-of-bounds access behavior when enabled, as per the GL_ARB_robust_buffer_access_behavior extension.
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@@ -232,3 +238,4 @@ Shader Functionality to Implement/Finish
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transform feedback buffering.
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+ Bug 10530: To be consistent with ES, include sample types as valid in a precision statement.
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Note the defaults are irrelevant, as precision qualifiers are not required or have any meaning.
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