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#include "precompiled.h"
//
// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// renderer9_utils.cpp: Conversion functions and other utility routines
// specific to the D3D9 renderer.
#include "libGLESv2/renderer/renderer9_utils.h"
#include "common/mathutil.h"
#include "libGLESv2/Context.h"
#include "common/debug.h"
namespace rx
{
namespace gl_d3d9
{
D3DCMPFUNC ConvertComparison(GLenum comparison)
{
D3DCMPFUNC d3dComp = D3DCMP_ALWAYS;
switch (comparison)
{
case GL_NEVER: d3dComp = D3DCMP_NEVER; break;
case GL_ALWAYS: d3dComp = D3DCMP_ALWAYS; break;
case GL_LESS: d3dComp = D3DCMP_LESS; break;
case GL_LEQUAL: d3dComp = D3DCMP_LESSEQUAL; break;
case GL_EQUAL: d3dComp = D3DCMP_EQUAL; break;
case GL_GREATER: d3dComp = D3DCMP_GREATER; break;
case GL_GEQUAL: d3dComp = D3DCMP_GREATEREQUAL; break;
case GL_NOTEQUAL: d3dComp = D3DCMP_NOTEQUAL; break;
default: UNREACHABLE();
}
return d3dComp;
}
D3DCOLOR ConvertColor(gl::Color color)
{
return D3DCOLOR_RGBA(gl::unorm<8>(color.red),
gl::unorm<8>(color.green),
gl::unorm<8>(color.blue),
gl::unorm<8>(color.alpha));
}
D3DBLEND ConvertBlendFunc(GLenum blend)
{
D3DBLEND d3dBlend = D3DBLEND_ZERO;
switch (blend)
{
case GL_ZERO: d3dBlend = D3DBLEND_ZERO; break;
case GL_ONE: d3dBlend = D3DBLEND_ONE; break;
case GL_SRC_COLOR: d3dBlend = D3DBLEND_SRCCOLOR; break;
case GL_ONE_MINUS_SRC_COLOR: d3dBlend = D3DBLEND_INVSRCCOLOR; break;
case GL_DST_COLOR: d3dBlend = D3DBLEND_DESTCOLOR; break;
case GL_ONE_MINUS_DST_COLOR: d3dBlend = D3DBLEND_INVDESTCOLOR; break;
case GL_SRC_ALPHA: d3dBlend = D3DBLEND_SRCALPHA; break;
case GL_ONE_MINUS_SRC_ALPHA: d3dBlend = D3DBLEND_INVSRCALPHA; break;
case GL_DST_ALPHA: d3dBlend = D3DBLEND_DESTALPHA; break;
case GL_ONE_MINUS_DST_ALPHA: d3dBlend = D3DBLEND_INVDESTALPHA; break;
case GL_CONSTANT_COLOR: d3dBlend = D3DBLEND_BLENDFACTOR; break;
case GL_ONE_MINUS_CONSTANT_COLOR: d3dBlend = D3DBLEND_INVBLENDFACTOR; break;
case GL_CONSTANT_ALPHA: d3dBlend = D3DBLEND_BLENDFACTOR; break;
case GL_ONE_MINUS_CONSTANT_ALPHA: d3dBlend = D3DBLEND_INVBLENDFACTOR; break;
case GL_SRC_ALPHA_SATURATE: d3dBlend = D3DBLEND_SRCALPHASAT; break;
default: UNREACHABLE();
}
return d3dBlend;
}
D3DBLENDOP ConvertBlendOp(GLenum blendOp)
{
D3DBLENDOP d3dBlendOp = D3DBLENDOP_ADD;
switch (blendOp)
{
case GL_FUNC_ADD: d3dBlendOp = D3DBLENDOP_ADD; break;
case GL_FUNC_SUBTRACT: d3dBlendOp = D3DBLENDOP_SUBTRACT; break;
case GL_FUNC_REVERSE_SUBTRACT: d3dBlendOp = D3DBLENDOP_REVSUBTRACT; break;
default: UNREACHABLE();
}
return d3dBlendOp;
}
D3DSTENCILOP ConvertStencilOp(GLenum stencilOp)
{
D3DSTENCILOP d3dStencilOp = D3DSTENCILOP_KEEP;
switch (stencilOp)
{
case GL_ZERO: d3dStencilOp = D3DSTENCILOP_ZERO; break;
case GL_KEEP: d3dStencilOp = D3DSTENCILOP_KEEP; break;
case GL_REPLACE: d3dStencilOp = D3DSTENCILOP_REPLACE; break;
case GL_INCR: d3dStencilOp = D3DSTENCILOP_INCRSAT; break;
case GL_DECR: d3dStencilOp = D3DSTENCILOP_DECRSAT; break;
case GL_INVERT: d3dStencilOp = D3DSTENCILOP_INVERT; break;
case GL_INCR_WRAP: d3dStencilOp = D3DSTENCILOP_INCR; break;
case GL_DECR_WRAP: d3dStencilOp = D3DSTENCILOP_DECR; break;
default: UNREACHABLE();
}
return d3dStencilOp;
}
D3DTEXTUREADDRESS ConvertTextureWrap(GLenum wrap)
{
D3DTEXTUREADDRESS d3dWrap = D3DTADDRESS_WRAP;
switch (wrap)
{
case GL_REPEAT: d3dWrap = D3DTADDRESS_WRAP; break;
case GL_CLAMP_TO_EDGE: d3dWrap = D3DTADDRESS_CLAMP; break;
case GL_MIRRORED_REPEAT: d3dWrap = D3DTADDRESS_MIRROR; break;
default: UNREACHABLE();
}
return d3dWrap;
}
D3DCULL ConvertCullMode(GLenum cullFace, GLenum frontFace)
{
D3DCULL cull = D3DCULL_CCW;
switch (cullFace)
{
case GL_FRONT:
cull = (frontFace == GL_CCW ? D3DCULL_CW : D3DCULL_CCW);
break;
case GL_BACK:
cull = (frontFace == GL_CCW ? D3DCULL_CCW : D3DCULL_CW);
break;
case GL_FRONT_AND_BACK:
cull = D3DCULL_NONE; // culling will be handled during draw
break;
default: UNREACHABLE();
}
return cull;
}
D3DCUBEMAP_FACES ConvertCubeFace(GLenum cubeFace)
{
D3DCUBEMAP_FACES face = D3DCUBEMAP_FACE_POSITIVE_X;
switch (cubeFace)
{
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
face = D3DCUBEMAP_FACE_POSITIVE_X;
break;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
face = D3DCUBEMAP_FACE_NEGATIVE_X;
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
face = D3DCUBEMAP_FACE_POSITIVE_Y;
break;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
face = D3DCUBEMAP_FACE_NEGATIVE_Y;
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
face = D3DCUBEMAP_FACE_POSITIVE_Z;
break;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
face = D3DCUBEMAP_FACE_NEGATIVE_Z;
break;
default: UNREACHABLE();
}
return face;
}
DWORD ConvertColorMask(bool red, bool green, bool blue, bool alpha)
{
return (red ? D3DCOLORWRITEENABLE_RED : 0) |
(green ? D3DCOLORWRITEENABLE_GREEN : 0) |
(blue ? D3DCOLORWRITEENABLE_BLUE : 0) |
(alpha ? D3DCOLORWRITEENABLE_ALPHA : 0);
}
D3DTEXTUREFILTERTYPE ConvertMagFilter(GLenum magFilter, float maxAnisotropy)
{
if (maxAnisotropy > 1.0f)
{
return D3DTEXF_ANISOTROPIC;
}
D3DTEXTUREFILTERTYPE d3dMagFilter = D3DTEXF_POINT;
switch (magFilter)
{
case GL_NEAREST: d3dMagFilter = D3DTEXF_POINT; break;
case GL_LINEAR: d3dMagFilter = D3DTEXF_LINEAR; break;
default: UNREACHABLE();
}
return d3dMagFilter;
}
void ConvertMinFilter(GLenum minFilter, D3DTEXTUREFILTERTYPE *d3dMinFilter, D3DTEXTUREFILTERTYPE *d3dMipFilter, float maxAnisotropy)
{
switch (minFilter)
{
case GL_NEAREST:
*d3dMinFilter = D3DTEXF_POINT;
*d3dMipFilter = D3DTEXF_NONE;
break;
case GL_LINEAR:
*d3dMinFilter = D3DTEXF_LINEAR;
*d3dMipFilter = D3DTEXF_NONE;
break;
case GL_NEAREST_MIPMAP_NEAREST:
*d3dMinFilter = D3DTEXF_POINT;
*d3dMipFilter = D3DTEXF_POINT;
break;
case GL_LINEAR_MIPMAP_NEAREST:
*d3dMinFilter = D3DTEXF_LINEAR;
*d3dMipFilter = D3DTEXF_POINT;
break;
case GL_NEAREST_MIPMAP_LINEAR:
*d3dMinFilter = D3DTEXF_POINT;
*d3dMipFilter = D3DTEXF_LINEAR;
break;
case GL_LINEAR_MIPMAP_LINEAR:
*d3dMinFilter = D3DTEXF_LINEAR;
*d3dMipFilter = D3DTEXF_LINEAR;
break;
default:
*d3dMinFilter = D3DTEXF_POINT;
*d3dMipFilter = D3DTEXF_NONE;
UNREACHABLE();
}
if (maxAnisotropy > 1.0f)
{
*d3dMinFilter = D3DTEXF_ANISOTROPIC;
}
}
}
}
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