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[Feat] (RenderState): implement glClipControl, glPolygonOffsetClamp and glTextureBarrier instead of stubbing them

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swung0x48
2026-08-27 05:37:16 -04:00
parent c9c2dcb42a
commit 0e4302b399
10 changed files with 273 additions and 5 deletions
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MobileGL/MG_Impl/GLImpl/RenderState/GL_RenderState.cpp
+40
View File
@@ -340,6 +340,38 @@ namespace MobileGL::MG_Impl::GLImpl {
MG_State::pGLContext->SetPolygonOffset(static_cast<Float>(factor), static_cast<Float>(units));
}
void PolygonOffsetClamp_State(GLfloat factor, GLfloat units, GLfloat clamp) {
// GL 4.6 core 14.6.5 / GL_EXT_polygon_offset_clamp. No error cases: any three floats are
// legal, and clamp = 0 is exactly glPolygonOffset. Whether the backend can APPLY the clamp
// is a separate question (see the DirectGLES/DirectVulkan forwarding); the state is
// recorded either way, because GL_POLYGON_OFFSET_CLAMP has to read back what was written.
MG_State::pGLContext->SetPolygonOffsetClamped(static_cast<Float>(factor), static_cast<Float>(units),
static_cast<Float>(clamp));
}
void ClipControl_State(GLenum origin, GLenum depth) {
// GL 4.5 core 13.5: both arguments are strict enums, and either being wrong is
// GL_INVALID_ENUM with the state left untouched.
if (origin != GL_LOWER_LEFT && origin != GL_UPPER_LEFT) {
MG_State::pGLContext->RecordError(
ErrorCode::InvalidEnum,
MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
"glClipControl origin must be GL_LOWER_LEFT or GL_UPPER_LEFT; got " +
MG_Util::ConvertGLEnumToString(origin) + "."));
return;
}
if (depth != GL_NEGATIVE_ONE_TO_ONE && depth != GL_ZERO_TO_ONE) {
MG_State::pGLContext->RecordError(
ErrorCode::InvalidEnum,
MakeUnique<GenericErrorInfo>(
"MG_Impl/GLImpl", __func__,
"glClipControl depth must be GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE; got " +
MG_Util::ConvertGLEnumToString(depth) + "."));
return;
}
MG_State::pGLContext->SetClipControl(origin, depth);
}
void PolygonMode_State(GLenum face, GLenum mode) {
// GL 3.3 core: separate front/back polygon modes were removed in 3.1, so the only legal
// face is GL_FRONT_AND_BACK. GL_FRONT / GL_BACK must be rejected (some desktop drivers
@@ -1029,6 +1061,14 @@ namespace MobileGL::MG_Impl::GLImpl {
PolygonOffset_State(factor, units);
}
void PolygonOffsetClamp(GLfloat factor, GLfloat units, GLfloat clamp) {
PolygonOffsetClamp_State(factor, units, clamp);
}
void ClipControl(GLenum origin, GLenum depth) {
ClipControl_State(origin, depth);
}
void PolygonMode(GLenum face, GLenum mode) {
PolygonMode_State(face, mode);
}
MobileGL/MG_Impl/GLImpl/RenderState/GL_RenderState.h
+2
View File
@@ -40,6 +40,8 @@ namespace MobileGL::MG_Impl::GLImpl {
void SampleCoverage(GLfloat value, GLboolean invert);
void MinSampleShading(GLfloat value);
void PolygonOffset(GLfloat factor, GLfloat units);
void PolygonOffsetClamp(GLfloat factor, GLfloat units, GLfloat clamp);
void ClipControl(GLenum origin, GLenum depth);
void PolygonMode(GLenum face, GLenum mode);
void PointSize(GLfloat size);
void PointParameterf(GLenum pname, GLfloat param);