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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_State/GLState/Core.cpp
+20
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@@ -848,6 +848,26 @@ namespace MobileGL::MG_State {
return m_renderState.GetPolygonOffsetUnits();
}
void GLContext::SetPolygonOffsetClamped(Float factor, Float units, Float clamp) {
m_renderState.SetPolygonOffsetClamped(factor, units, clamp);
}
Float GLContext::GetPolygonOffsetClamp() const {
return m_renderState.GetPolygonOffsetClamp();
}
void GLContext::SetClipControl(GLenum origin, GLenum depth) {
m_renderState.SetClipControl(origin, depth);
}
GLenum GLContext::GetClipOrigin() const {
return m_renderState.GetClipOrigin();
}
GLenum GLContext::GetClipDepthMode() const {
return m_renderState.GetClipDepthMode();
}
void GLContext::SetCapability(CapabilityInput cap, Bool enabled) {
m_renderState.SetCapability(cap, enabled);
}
MobileGL/MG_State/GLState/Core.h
+5
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@@ -218,8 +218,13 @@ namespace MobileGL {
void SetPatchDefaultInnerLevel(const FloatVec2& levels);
const FloatVec2& GetPatchDefaultInnerLevel() const;
void SetPolygonOffset(Float factor, Float units);
void SetPolygonOffsetClamped(Float factor, Float units, Float clamp);
Float GetPolygonOffsetFactor() const;
Float GetPolygonOffsetUnits() const;
Float GetPolygonOffsetClamp() const;
void SetClipControl(GLenum origin, GLenum depth);
GLenum GetClipOrigin() const;
GLenum GetClipDepthMode() const;
void SetHint(GLenum target, GLenum mode);
GLenum GetHint(GLenum target) const;
void SetPointFadeThresholdSize(Float size);
MobileGL/MG_State/GLState/RenderState/RenderState.cpp
+31
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@@ -263,6 +263,37 @@ namespace MobileGL {
return m_parameters.PolygonOffsetUnits;
}
void RenderState::SetPolygonOffsetClamped(Float factor, Float units, Float clamp) {
if (m_parameters.PolygonOffsetFactor == factor && m_parameters.PolygonOffsetUnits == units &&
m_parameters.PolygonOffsetClamp == clamp)
return;
m_parameters.PolygonOffsetFactor = factor;
m_parameters.PolygonOffsetUnits = units;
m_parameters.PolygonOffsetClamp = clamp;
++m_version;
}
Float RenderState::GetPolygonOffsetClamp() const {
return m_parameters.PolygonOffsetClamp;
}
void RenderState::SetClipControl(GLenum origin, GLenum depth) {
if (m_parameters.ClipOrigin == origin && m_parameters.ClipDepthMode == depth) return;
m_parameters.ClipOrigin = origin;
m_parameters.ClipDepthMode = depth;
++m_version;
}
GLenum RenderState::GetClipOrigin() const {
return m_parameters.ClipOrigin;
}
GLenum RenderState::GetClipDepthMode() const {
return m_parameters.ClipDepthMode;
}
// -------------------- Capabilities --------------------
namespace {
// CapabilityInput lists ClipDistance0..7 contiguously (RenderState.h); the caller
MobileGL/MG_State/GLState/RenderState/RenderState.h
+17
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@@ -249,6 +249,15 @@ namespace MobileGL {
FloatVec2 PatchDefaultInnerLevel = FloatVec2(1.0f, 1.0f);
Float PolygonOffsetFactor = 0.0f;
Float PolygonOffsetUnits = 0.0f;
// GL_POLYGON_OFFSET_CLAMP (GL 4.6 core 14.6.5 / GL_EXT_polygon_offset_clamp): the maximum
// magnitude of the offset glPolygonOffsetClamp's third argument allows. Zero - the default
// - means "no clamp", which is exactly the behaviour glPolygonOffset leaves behind.
Float PolygonOffsetClamp = 0.0f;
// glClipControl (GL 4.5 core 13.5). Defaults per table 23.7 are the pre-4.5 fixed
// behaviour: origin at the lower left, depth mapped from -1..1.
GLenum ClipOrigin = GL_LOWER_LEFT;
GLenum ClipDepthMode = GL_NEGATIVE_ONE_TO_ONE;
// Blending
Array<PerBufferBlendState, MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS> BlendStates;
@@ -391,8 +400,16 @@ namespace MobileGL {
void SetPatchDefaultInnerLevel(const FloatVec2& levels);
const FloatVec2& GetPatchDefaultInnerLevel() const;
void SetPolygonOffset(Float factor, Float units);
// glPolygonOffsetClamp. Writes the same factor/units as glPolygonOffset plus the
// clamp, because that is what the entry point does - glPolygonOffset is the
// clamp = 0 case of it (GL 4.6 core 14.6.5).
void SetPolygonOffsetClamped(Float factor, Float units, Float clamp);
Float GetPolygonOffsetFactor() const;
Float GetPolygonOffsetUnits() const;
Float GetPolygonOffsetClamp() const;
void SetClipControl(GLenum origin, GLenum depth);
GLenum GetClipOrigin() const;
GLenum GetClipDepthMode() const;
// Hints. target must be one of the 4 GL 3.3 core hint targets (validated by the caller).
void SetHint(GLenum target, GLenum mode);
GLenum GetHint(GLenum target) const;