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Renderer: Add proper support for blending

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This commit is contained in:
Jérôme Leclercq
2021-05-14 01:50:46 +02:00
parent 61dbd91346
commit adbf1e1da0
13 changed files with 207 additions and 99 deletions
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1
include/Nazara/OpenGLRenderer/Utils.hpp
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@@ -29,6 +29,7 @@ namespace Nz
inline std::optional<GLTextureFormat> DescribeTextureFormat(PixelFormat pixelFormat);
inline GLenum ToOpenGL(BlendEquation blendEquation);
inline GLenum ToOpenGL(BlendFunc blendFunc);
inline GLenum ToOpenGL(FaceSide filter);
inline GLenum ToOpenGL(PrimitiveMode primitiveMode);

39
include/Nazara/OpenGLRenderer/Utils.inl
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@@ -32,20 +32,39 @@ namespace Nz
return {};
}
inline GLenum ToOpenGL(BlendEquation blendEquation)
{
switch (blendEquation)
{
case BlendEquation::Add: return GL_FUNC_ADD;
case BlendEquation::Max: return GL_MAX;
case BlendEquation::Min: return GL_MIN;
case BlendEquation::ReverseSubtract: return GL_FUNC_REVERSE_SUBTRACT;
case BlendEquation::Subtract: return GL_FUNC_SUBTRACT;
}
NazaraError("Unhandled BlendEquation 0x" + NumberToString(UnderlyingCast(blendEquation), 16));
return {};
}
inline GLenum ToOpenGL(BlendFunc blendFunc)
{
switch (blendFunc)
{
case BlendFunc_DestAlpha: return GL_DST_ALPHA;
case BlendFunc_DestColor: return GL_DST_COLOR;
case BlendFunc_SrcAlpha: return GL_SRC_ALPHA;
case BlendFunc_SrcColor: return GL_SRC_COLOR;
case BlendFunc_InvDestAlpha: return GL_ONE_MINUS_DST_ALPHA;
case BlendFunc_InvDestColor: return GL_ONE_MINUS_DST_COLOR;
case BlendFunc_InvSrcAlpha: return GL_ONE_MINUS_SRC_ALPHA;
case BlendFunc_InvSrcColor: return GL_ONE_MINUS_SRC_COLOR;
case BlendFunc_One: return GL_ONE;
case BlendFunc_Zero: return GL_ZERO;
case BlendFunc::ConstantAlpha: return GL_CONSTANT_ALPHA;
case BlendFunc::ConstantColor: return GL_CONSTANT_COLOR;
case BlendFunc::DstAlpha: return GL_DST_ALPHA;
case BlendFunc::DstColor: return GL_DST_COLOR;
case BlendFunc::InvConstantAlpha: return GL_ONE_MINUS_CONSTANT_ALPHA;
case BlendFunc::InvConstantColor: return GL_ONE_MINUS_CONSTANT_COLOR;
case BlendFunc::InvDstAlpha: return GL_ONE_MINUS_DST_ALPHA;
case BlendFunc::InvDstColor: return GL_ONE_MINUS_DST_COLOR;
case BlendFunc::InvSrcAlpha: return GL_ONE_MINUS_SRC_ALPHA;
case BlendFunc::InvSrcColor: return GL_ONE_MINUS_SRC_COLOR;
case BlendFunc::SrcAlpha: return GL_SRC_ALPHA;
case BlendFunc::SrcColor: return GL_SRC_COLOR;
case BlendFunc::One: return GL_ONE;
case BlendFunc::Zero: return GL_ZERO;
}
NazaraError("Unhandled BlendFunc 0x" + NumberToString(UnderlyingCast(blendFunc), 16));

2
include/Nazara/OpenGLRenderer/Wrapper/CoreFunctions.hpp
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@@ -29,7 +29,7 @@ typedef void (GL_APIENTRYP PFNGLSPECIALIZESHADERARBPROC) (GLuint shader, const G
cb(glBindSampler, PFNGLBINDSAMPLERPROC) \
cb(glBindTexture, PFNGLBINDTEXTUREPROC) \
cb(glBindVertexArray, PFNGLBINDVERTEXARRAYPROC) \
cb(glBlendFunc, PFNGLBLENDFUNCPROC) \
cb(glBlendEquationSeparate, PFNGLBLENDEQUATIONSEPARATEPROC) \
cb(glBlendFuncSeparate, PFNGLBLENDFUNCSEPARATEPROC) \
cb(glBlitFramebuffer, PFNGLBLITFRAMEBUFFERPROC) \
cb(glBufferData, PFNGLBUFFERDATAPROC) \