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[Feat] (MG_Impl/GLImpl): implement 8 packed glVertexAttribP*ui current-value setters

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glVertexAttribP{1,2,3,4}ui and their *uiv forms set the CURRENT generic
vertex attribute value from a packed 2_10_10_10_REV word (they are the
packed members of the immediate VertexAttrib* family, not the array-format
path), so they funnel into SetCurrentVertexAttributeFloat and reuse the
existing index validation.

- Add DecodePacked2101010: unpacks x=[0..9], y=[10..19], z=[20..29] (10-bit)
  and w=[30..31] (2-bit) from one 32-bit word. Signed fields are two's-
  complement (sign-extended per width); normalized conversion uses the
  GL 3.3 (2c+1)/(2^b-1) form (10-bit /1023, 2-bit /3), matching the
  existing NormalizeSigned* helpers -- NOT the GL 4.2 clamp form.
- type accepts only GL_INT_2_10_10_10_REV / GL_UNSIGNED_INT_2_10_10_10_REV
  (GL_INVALID_ENUM otherwise; the 4.4-era 10F_11F_11F_REV is not legal in
  3.3). P1/P2/P3 consume the first 1/2/3 components; the rest take the
  (0,0,0,1) defaults and are cleared each call. The *uiv forms dereference
  a single packed word, not an array.

Tests: 4 VertexArrayTest cases (unsigned decode, signed GL-3.3 formula,
component-count/defaults, type/index/uiv validation). The signed test is
mutation-verified: z==0 -> 1/1023 fails against the GL 4.2 form.
VertexArrayTest 38/38, SanityTest 30/30.
This commit is contained in:
swung0x48
2026-07-10 23:07:13 -04:00
parent 3ff8cafac6
commit 0cada09aa7
4 changed files with 250 additions and 8 deletions
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MobileGL/MG_Impl/GLImpl/Exporting/Definitions.cpp
+8 -8
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@@ -871,14 +871,14 @@ DECLARE_GL_FUNCTION_STUB_HEAD(GLint, GetFragDataIndex, GLuint program, const GLc
DECLARE_GL_FUNCTION_HEAD(void, QueryCounter, GLuint id, GLenum target) DECLARE_GL_FUNCTION_END_NO_RETURN(void, QueryCounter, id, target)
DECLARE_GL_FUNCTION_HEAD(void, GetQueryObjecti64v, GLuint id, GLenum pname, GLint64* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetQueryObjecti64v, id, pname, params)
DECLARE_GL_FUNCTION_HEAD(void, GetQueryObjectui64v, GLuint id, GLenum pname, GLuint64* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetQueryObjectui64v, id, pname, params)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribP1ui, GLuint index, GLenum type, GLboolean normalized, GLuint value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribP1ui, index, type, normalized, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribP1uiv, GLuint index, GLenum type, GLboolean normalized, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribP1uiv, index, type, normalized, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribP2ui, GLuint index, GLenum type, GLboolean normalized, GLuint value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribP2ui, index, type, normalized, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribP2uiv, GLuint index, GLenum type, GLboolean normalized, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribP2uiv, index, type, normalized, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribP3ui, GLuint index, GLenum type, GLboolean normalized, GLuint value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribP3ui, index, type, normalized, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribP3uiv, GLuint index, GLenum type, GLboolean normalized, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribP3uiv, index, type, normalized, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribP4ui, GLuint index, GLenum type, GLboolean normalized, GLuint value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribP4ui, index, type, normalized, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribP4uiv, GLuint index, GLenum type, GLboolean normalized, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribP4uiv, index, type, normalized, value)
DECLARE_GL_FUNCTION_HEAD(void, VertexAttribP1ui, GLuint index, GLenum type, GLboolean normalized, GLuint value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribP1ui, index, type, normalized, value)
DECLARE_GL_FUNCTION_HEAD(void, VertexAttribP1uiv, GLuint index, GLenum type, GLboolean normalized, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribP1uiv, index, type, normalized, value)
DECLARE_GL_FUNCTION_HEAD(void, VertexAttribP2ui, GLuint index, GLenum type, GLboolean normalized, GLuint value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribP2ui, index, type, normalized, value)
DECLARE_GL_FUNCTION_HEAD(void, VertexAttribP2uiv, GLuint index, GLenum type, GLboolean normalized, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribP2uiv, index, type, normalized, value)
DECLARE_GL_FUNCTION_HEAD(void, VertexAttribP3ui, GLuint index, GLenum type, GLboolean normalized, GLuint value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribP3ui, index, type, normalized, value)
DECLARE_GL_FUNCTION_HEAD(void, VertexAttribP3uiv, GLuint index, GLenum type, GLboolean normalized, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribP3uiv, index, type, normalized, value)
DECLARE_GL_FUNCTION_HEAD(void, VertexAttribP4ui, GLuint index, GLenum type, GLboolean normalized, GLuint value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribP4ui, index, type, normalized, value)
DECLARE_GL_FUNCTION_HEAD(void, VertexAttribP4uiv, GLuint index, GLenum type, GLboolean normalized, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribP4uiv, index, type, normalized, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexP2ui, GLenum type, GLuint value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexP2ui, type, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexP2uiv, GLenum type, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexP2uiv, type, value)
DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexP3ui, GLenum type, GLuint value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexP3ui, type, value)