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LibGL: Implement glAlphaFunc()

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This implements glAlphaFunc() for setting alpha test func and ref value
and also allows enabling and disabling GL_ALPHA_TEST
This commit is contained in:
Stephan Unverwerth 2021-05-16 16:43:09 +02:00 • committed by Andreas Kling
parent b8b8b4b566
commit 1bd754882d
6 changed files with 68 additions and 2 deletions
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8
Userland/Libraries/LibGL/SoftwareGLContext.h
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@ -57,6 +57,7 @@ public:
virtual void gl_finish() override;
virtual void gl_blend_func(GLenum src_factor, GLenum dst_factor) override;
virtual void gl_shade_model(GLenum mode) override;
virtual void gl_alpha_func(GLenum func, GLclampf ref) override;
virtual void present() override;
@ -111,6 +112,10 @@ private:
GLenum m_blend_source_factor = GL_ONE;
GLenum m_blend_destination_factor = GL_ZERO;
bool m_alpha_test_enabled = false;
GLenum m_alpha_test_func = GL_ALWAYS;
GLclampf m_alpha_test_ref_value = 0;
NonnullRefPtr<Gfx::Bitmap> m_frontbuffer;
Clipper m_clipper;
@ -164,7 +169,8 @@ private:
decltype(&SoftwareGLContext::gl_cull_face),
decltype(&SoftwareGLContext::gl_call_list),
decltype(&SoftwareGLContext::gl_blend_func),
decltype(&SoftwareGLContext::gl_shade_model)>;
decltype(&SoftwareGLContext::gl_shade_model),
decltype(&SoftwareGLContext::gl_alpha_func)>;
using ExtraSavedArguments = Variant<
FloatMatrix4x4>;