mirror of
https://github.com/MobileGL-Dev/MobileGL
synced 2026-09-12 14:18:31 +09:00
swung0x48
e460536119
Six pure-state entry points that were stubs or empty // TODO bodies, all backed by new
context state and read back through glGet*.
* glHint: Hint_State was an empty TODO. Store the 4 GL 3.3 core hint targets (LINE_SMOOTH,
POLYGON_SMOOTH, TEXTURE_COMPRESSION, FRAGMENT_SHADER_DERIVATIVE), default GL_DONT_CARE.
Validate target and mode (FASTEST/NICEST/DONT_CARE) -> GL_INVALID_ENUM otherwise. The
compatibility-only targets (GL_PERSPECTIVE_CORRECTION_HINT, GL_POINT_SMOOTH_HINT, GL_FOG_HINT,
GL_GENERATE_MIPMAP_HINT) are rejected. The glGetIntegerv hint cases, previously hardcoded to
GL_DONT_CARE, now read the stored value; glGetBooleanv on a hint is always GL_TRUE.
* glPointParameter{f,i,fv,iv}: the scalar _State bodies were empty TODOs and the *v forms were
stubs. Only the 2 core pnames are accepted: GL_POINT_FADE_THRESHOLD_SIZE (float, default 1.0,
GL_INVALID_VALUE if negative) and GL_POINT_SPRITE_COORD_ORIGIN (GL_LOWER_LEFT/GL_UPPER_LEFT,
default GL_UPPER_LEFT, GL_INVALID_ENUM on a bad value -- note the different error code from the
fade case). The compat pnames (POINT_SIZE_MIN/MAX, POINT_DISTANCE_ATTENUATION) are rejected. All
four forms funnel through one (pname, float) handler. glGetIntegerv(GL_POINT_FADE_THRESHOLD_SIZE)
was hardcoded to 1; it now rounds the stored float, glGetFloatv reads the float directly (keeping
the fractional part), and GL_POINT_SPRITE_COORD_ORIGIN gained a getter case (it had none).
* glPixelStoref: funnels into the existing glPixelStorei state, but converts per type -- boolean
pnames (PACK/UNPACK_SWAP_BYTES/LSB_FIRST) by a zero-test so 0.4 -> TRUE, integer pnames by
round-to-nearest. A blanket round would wrongly turn a fractional true flag into false.
* glGetDoublev: funnels through glGetFloatv and widens, writing exactly the pname's component count
(1/2/4) so a single-component query cannot overrun the caller's buffer. MobileGL stores no native
double state (depth range/clear are float), so widening from float matches its real resolution.
State added to RenderStateParameters + RenderState Set/Get + GLContext wrappers, following the
existing LineWidth/DepthRange pattern. Covered by 4 SanityTest cases (set-then-get round trips, the
core-vs-compat enum rejections, the two different error codes, and the glPixelStoref boolean
zero-test, which was verified to fail against a blanket-round implementation).
25 lines
1013 B
C++
25 lines
1013 B
C++
// MobileGL - MobileGL/MG_Impl/GLImpl/Getter/GL_Getter.h
|
|
// Copyright (c) 2025-2026 MobileGL-Dev
|
|
// Licensed under the GNU Lesser General Public License v3.0:
|
|
// https://www.gnu.org/licenses/gpl-3.0.txt
|
|
// https://www.gnu.org/licenses/lgpl-3.0.txt
|
|
// SPDX-License-Identifier: LGPL-3.0-only
|
|
// End of Source File Header
|
|
|
|
#pragma once
|
|
#include <Includes.h>
|
|
|
|
namespace MobileGL::MG_Impl::GLImpl {
|
|
/* @INSERTION_POINT:FUNCTION_DECLARATION@ */
|
|
const GLubyte* GetString(GLenum name);
|
|
const GLubyte* GetStringi(GLenum name, GLuint index);
|
|
void GetBooleanv(GLenum pname, GLboolean* params);
|
|
void GetFloatv(GLenum pname, GLfloat* params);
|
|
void GetDoublev(GLenum pname, GLdouble* params);
|
|
void GetIntegerv(GLenum pname, GLint* params);
|
|
void GetInteger64v(GLenum pname, GLint64* params);
|
|
void GetIntegeri_v(GLenum target, GLuint index, GLint* data);
|
|
void GetInteger64i_v(GLenum target, GLuint index, GLint64* data);
|
|
GLenum GetError();
|
|
} // namespace MobileGL::MG_Impl::GLImpl
|