2019-07-04 17:47:24 +08:00
|
|
|
/****************************************************************************
|
|
|
|
Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd.
|
|
|
|
|
|
|
|
http://www.cocos2d-x.org
|
|
|
|
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
|
|
in the Software without restriction, including without limitation the rights
|
|
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
|
|
all copies or substantial portions of the Software.
|
|
|
|
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
|
THE SOFTWARE.
|
|
|
|
****************************************************************************/
|
|
|
|
|
2019-03-12 10:37:52 +08:00
|
|
|
#include "UtilsGL.h"
|
|
|
|
#include "ProgramGL.h"
|
|
|
|
#include "renderer/backend/Types.h"
|
|
|
|
|
|
|
|
CC_BACKEND_BEGIN
|
|
|
|
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLAttributeType(VertexFormat vertexFormat)
|
|
|
|
{
|
|
|
|
GLenum ret = GL_INT;
|
|
|
|
switch (vertexFormat)
|
|
|
|
{
|
|
|
|
case VertexFormat::FLOAT4:
|
|
|
|
case VertexFormat::FLOAT3:
|
|
|
|
case VertexFormat::FLOAT2:
|
|
|
|
case VertexFormat::FLOAT:
|
|
|
|
ret = GL_FLOAT;
|
|
|
|
break;
|
|
|
|
case VertexFormat::INT4:
|
|
|
|
case VertexFormat::INT3:
|
|
|
|
case VertexFormat::INT2:
|
|
|
|
case VertexFormat::INT:
|
|
|
|
ret = GL_INT;
|
|
|
|
break;
|
|
|
|
case VertexFormat::UBYTE4:
|
|
|
|
ret = GL_UNSIGNED_BYTE;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLsizei UtilsGL::getGLAttributeSize(VertexFormat vertexFormat)
|
|
|
|
{
|
|
|
|
GLsizei ret = 0;
|
|
|
|
switch (vertexFormat)
|
|
|
|
{
|
|
|
|
case VertexFormat::FLOAT4:
|
|
|
|
case VertexFormat::INT4:
|
|
|
|
case VertexFormat::UBYTE4:
|
|
|
|
ret = 4;
|
|
|
|
break;
|
|
|
|
case VertexFormat::FLOAT3:
|
|
|
|
case VertexFormat::INT3:
|
|
|
|
ret = 3;
|
|
|
|
break;
|
|
|
|
case VertexFormat::FLOAT2:
|
|
|
|
case VertexFormat::INT2:
|
|
|
|
ret = 2;
|
|
|
|
break;
|
|
|
|
case VertexFormat::FLOAT:
|
|
|
|
case VertexFormat::INT:
|
|
|
|
ret = 1;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLsizei UtilsGL::getGLDataTypeSize(GLenum size)
|
|
|
|
{
|
|
|
|
GLsizei ret = 0;
|
|
|
|
switch (size)
|
|
|
|
{
|
|
|
|
case GL_BOOL:
|
|
|
|
case GL_BYTE:
|
|
|
|
case GL_UNSIGNED_BYTE:
|
|
|
|
ret = sizeof(GLbyte);
|
|
|
|
break;
|
|
|
|
case GL_BOOL_VEC2:
|
|
|
|
case GL_SHORT:
|
|
|
|
case GL_UNSIGNED_SHORT:
|
|
|
|
ret = sizeof(GLshort);
|
|
|
|
break;
|
|
|
|
case GL_BOOL_VEC3:
|
|
|
|
ret = sizeof(GLboolean);
|
|
|
|
break;
|
|
|
|
case GL_BOOL_VEC4:
|
|
|
|
case GL_INT:
|
|
|
|
case GL_UNSIGNED_INT:
|
|
|
|
case GL_FLOAT:
|
|
|
|
ret = sizeof(GLfloat);
|
|
|
|
break;
|
|
|
|
case GL_FLOAT_VEC2:
|
|
|
|
case GL_INT_VEC2:
|
|
|
|
ret = sizeof(GLfloat) * 2;
|
|
|
|
break;
|
|
|
|
case GL_FLOAT_VEC3:
|
|
|
|
case GL_INT_VEC3:
|
|
|
|
ret = sizeof(GLfloat) * 3;
|
|
|
|
break;
|
|
|
|
case GL_FLOAT_MAT2:
|
|
|
|
case GL_FLOAT_VEC4:
|
|
|
|
case GL_INT_VEC4:
|
|
|
|
ret = sizeof(GLfloat) * 4;
|
|
|
|
break;
|
|
|
|
case GL_FLOAT_MAT3:
|
|
|
|
ret = sizeof(GLfloat) * 9;
|
|
|
|
break;
|
|
|
|
case GL_FLOAT_MAT4:
|
|
|
|
ret = sizeof(GLfloat) * 16;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
GLint UtilsGL::toGLMagFilter(SamplerFilter magFilter)
|
|
|
|
{
|
|
|
|
GLint ret = GL_LINEAR;
|
|
|
|
switch (magFilter)
|
|
|
|
{
|
|
|
|
case SamplerFilter::LINEAR:
|
|
|
|
ret = GL_LINEAR;
|
|
|
|
break;
|
|
|
|
case SamplerFilter::NEAREST:
|
|
|
|
ret = GL_NEAREST;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2019-06-03 09:39:51 +08:00
|
|
|
GLint UtilsGL::toGLMinFilter(SamplerFilter minFilter, bool hasMipmaps, bool isPow2)
|
2019-03-12 10:37:52 +08:00
|
|
|
{
|
2019-06-03 09:39:51 +08:00
|
|
|
if (hasMipmaps && !isPow2)
|
2019-03-12 10:37:52 +08:00
|
|
|
{
|
2019-06-03 09:39:51 +08:00
|
|
|
CCLOG("Change minification filter to either NEAREST or LINEAR since non-power-of-two texture occur in %s %s %d", __FILE__, __FUNCTION__, __LINE__);
|
2019-03-12 10:37:52 +08:00
|
|
|
if (SamplerFilter::LINEAR == minFilter)
|
|
|
|
return GL_LINEAR;
|
|
|
|
else
|
|
|
|
return GL_NEAREST;
|
|
|
|
}
|
2019-06-03 09:39:51 +08:00
|
|
|
|
|
|
|
switch (minFilter)
|
|
|
|
{
|
|
|
|
case SamplerFilter::LINEAR:
|
|
|
|
return GL_LINEAR;
|
|
|
|
case SamplerFilter::LINEAR_MIPMAP_LINEAR:
|
|
|
|
return GL_LINEAR_MIPMAP_LINEAR;
|
|
|
|
case SamplerFilter::LINEAR_MIPMAP_NEAREST:
|
|
|
|
return GL_LINEAR_MIPMAP_NEAREST;
|
|
|
|
case SamplerFilter::NEAREST:
|
|
|
|
return GL_NEAREST;
|
|
|
|
case SamplerFilter::NEAREST_MIPMAP_NEAREST:
|
|
|
|
return GL_NEAREST_MIPMAP_NEAREST;
|
|
|
|
case SamplerFilter::NEAREST_MIPMAP_LINEAR:
|
|
|
|
return GL_NEAREST_MIPMAP_LINEAR;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2019-03-12 10:37:52 +08:00
|
|
|
return GL_NEAREST;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLint UtilsGL::toGLAddressMode(SamplerAddressMode addressMode, bool isPow2)
|
|
|
|
{
|
|
|
|
GLint ret = GL_REPEAT;
|
|
|
|
if (!isPow2 && (addressMode != SamplerAddressMode::CLAMP_TO_EDGE))
|
|
|
|
{
|
2019-06-03 09:39:51 +08:00
|
|
|
CCLOG("Change texture wrap mode to CLAMP_TO_EDGE since non-power-of-two texture occur in %s %s %d", __FILE__, __FUNCTION__, __LINE__);
|
2019-03-12 10:37:52 +08:00
|
|
|
return GL_CLAMP_TO_EDGE;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (addressMode)
|
|
|
|
{
|
|
|
|
case SamplerAddressMode::REPEAT:
|
|
|
|
ret = GL_REPEAT;
|
|
|
|
break;
|
|
|
|
case SamplerAddressMode::MIRROR_REPEAT:
|
|
|
|
ret = GL_MIRRORED_REPEAT;
|
|
|
|
break;
|
|
|
|
case SamplerAddressMode::CLAMP_TO_EDGE:
|
|
|
|
ret = GL_CLAMP_TO_EDGE;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-06-03 09:39:51 +08:00
|
|
|
void UtilsGL::toGLTypes(PixelFormat textureFormat, GLint &internalFormat, GLuint &format, GLenum &type, bool &isCompressed)
|
2019-03-12 10:37:52 +08:00
|
|
|
{
|
|
|
|
switch (textureFormat)
|
|
|
|
{
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::RGBA8888:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_RGBA;
|
|
|
|
format = GL_RGBA;
|
|
|
|
type = GL_UNSIGNED_BYTE;
|
|
|
|
break;
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::RGB888:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_RGB;
|
|
|
|
format = GL_RGB;
|
|
|
|
type = GL_UNSIGNED_BYTE;
|
|
|
|
break;
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::RGBA4444:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_RGBA;
|
|
|
|
format = GL_RGBA;
|
|
|
|
type = GL_UNSIGNED_SHORT_4_4_4_4;
|
|
|
|
break;
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::A8:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_ALPHA;
|
|
|
|
format = GL_ALPHA;
|
|
|
|
type = GL_UNSIGNED_BYTE;
|
|
|
|
break;
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::I8:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_LUMINANCE;
|
|
|
|
format = GL_LUMINANCE;
|
|
|
|
type = GL_UNSIGNED_BYTE;
|
|
|
|
break;
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::AI88:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_LUMINANCE_ALPHA;
|
|
|
|
format = GL_LUMINANCE_ALPHA;
|
|
|
|
type = GL_UNSIGNED_BYTE;
|
|
|
|
break;
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::RGB565:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_RGB;
|
|
|
|
format = GL_RGB;
|
|
|
|
type = GL_UNSIGNED_SHORT_5_6_5;
|
|
|
|
break;
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::RGB5A1:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_RGBA;
|
|
|
|
format = GL_RGBA;
|
|
|
|
type = GL_UNSIGNED_SHORT_5_5_5_1;
|
|
|
|
break;
|
2020-02-05 22:45:19 +08:00
|
|
|
#ifdef GL_COMPRESSED_RGBA_ASTC_4x4_KHR
|
|
|
|
case PixelFormat::ASTC:
|
|
|
|
internalFormat = GL_COMPRESSED_RGBA_ASTC_4x4_KHR;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
break;
|
|
|
|
#endif
|
2019-03-12 10:37:52 +08:00
|
|
|
#ifdef GL_ETC1_RGB8_OES
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::ETC:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_ETC1_RGB8_OES;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif // GL_ETC1_RGB8_OES
|
|
|
|
#ifdef GL_ATC_RGB_AMD
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::ATC_RGB:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_ATC_RGB_AMD;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif // GL_ATC_RGB_AMD
|
|
|
|
#ifdef GL_ATC_RGBA_EXPLICIT_ALPHA_AMD
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::ATC_EXPLICIT_ALPHA:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_ATC_RGBA_EXPLICIT_ALPHA_AMD;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
2019-06-27 09:40:53 +08:00
|
|
|
break;
|
2019-03-12 10:37:52 +08:00
|
|
|
#endif // GL_ATC_RGBA_EXPLICIT_ALPHA_AMD
|
|
|
|
#ifdef GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::ATC_INTERPOLATED_ALPHA:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif // GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD
|
|
|
|
|
|
|
|
#ifdef GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::PVRTC2:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::PVRTC2A:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::PVRTC4:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::PVRTC4A:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::S3TC_DXT1:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::S3TC_DXT3:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
#ifdef GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::S3TC_DXT5:
|
2019-03-12 10:37:52 +08:00
|
|
|
internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
|
|
|
|
format = 0xFFFFFFFF;
|
|
|
|
type = 0xFFFFFFFF;
|
|
|
|
isCompressed = true;
|
|
|
|
break;
|
|
|
|
#endif
|
2019-06-03 09:39:51 +08:00
|
|
|
// case PixelFormat::D16:
|
2019-03-12 10:37:52 +08:00
|
|
|
// format = GL_DEPTH_COMPONENT;
|
|
|
|
// internalFormat = GL_DEPTH_COMPONENT;
|
|
|
|
// type = GL_UNSIGNED_INT;
|
2019-06-03 09:39:51 +08:00
|
|
|
case PixelFormat::D24S8:
|
2019-03-12 10:37:52 +08:00
|
|
|
#ifdef CC_USE_GLES
|
|
|
|
format = GL_DEPTH_STENCIL_OES;
|
|
|
|
internalFormat = GL_DEPTH_STENCIL_OES;
|
|
|
|
type = GL_UNSIGNED_INT_24_8_OES;
|
|
|
|
#else
|
|
|
|
format = GL_DEPTH_STENCIL;
|
2019-04-04 09:41:17 +08:00
|
|
|
internalFormat = GL_DEPTH24_STENCIL8;
|
|
|
|
type = GL_UNSIGNED_INT_24_8;
|
2019-03-12 10:37:52 +08:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLComareFunction(CompareFunction compareFunction)
|
|
|
|
{
|
|
|
|
GLenum ret = GL_ALWAYS;
|
|
|
|
switch (compareFunction)
|
|
|
|
{
|
|
|
|
case CompareFunction::NEVER:
|
|
|
|
ret = GL_NEVER;
|
|
|
|
break;
|
|
|
|
case CompareFunction::LESS:
|
|
|
|
ret = GL_LESS;
|
|
|
|
break;
|
|
|
|
case CompareFunction::LESS_EQUAL:
|
|
|
|
ret = GL_LEQUAL;
|
|
|
|
break;
|
|
|
|
case CompareFunction::GREATER:
|
|
|
|
ret = GL_GREATER;
|
|
|
|
break;
|
|
|
|
case CompareFunction::GREATER_EQUAL:
|
|
|
|
ret = GL_GEQUAL;
|
|
|
|
break;
|
|
|
|
case CompareFunction::NOT_EQUAL:
|
|
|
|
ret = GL_NOTEQUAL;
|
|
|
|
break;
|
|
|
|
case CompareFunction::EQUAL:
|
|
|
|
ret = GL_EQUAL;
|
|
|
|
break;
|
|
|
|
case CompareFunction::ALWAYS:
|
|
|
|
ret = GL_ALWAYS;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLStencilOperation(StencilOperation stencilOperation)
|
|
|
|
{
|
|
|
|
GLenum ret = GL_KEEP;
|
|
|
|
switch (stencilOperation)
|
|
|
|
{
|
|
|
|
case StencilOperation::KEEP:
|
|
|
|
ret = GL_KEEP;
|
|
|
|
break;
|
|
|
|
case StencilOperation::ZERO:
|
|
|
|
ret = GL_ZERO;
|
|
|
|
break;
|
|
|
|
case StencilOperation::REPLACE:
|
|
|
|
ret = GL_REPLACE;
|
|
|
|
break;
|
|
|
|
case StencilOperation::INVERT:
|
|
|
|
ret = GL_INVERT;
|
|
|
|
break;
|
|
|
|
case StencilOperation::INCREMENT_WRAP:
|
|
|
|
ret = GL_INCR_WRAP;
|
|
|
|
break;
|
|
|
|
case StencilOperation::DECREMENT_WRAP:
|
|
|
|
ret = GL_DECR_WRAP;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLBlendOperation(BlendOperation blendOperation)
|
|
|
|
{
|
|
|
|
GLenum ret = GL_FUNC_ADD;
|
|
|
|
switch (blendOperation)
|
|
|
|
{
|
|
|
|
case BlendOperation::ADD:
|
|
|
|
ret = GL_FUNC_ADD;
|
|
|
|
break;
|
|
|
|
case BlendOperation::SUBTRACT:
|
|
|
|
ret = GL_FUNC_SUBTRACT;
|
|
|
|
break;
|
|
|
|
case BlendOperation::RESERVE_SUBTRACT:
|
|
|
|
ret = GL_FUNC_REVERSE_SUBTRACT;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLBlendFactor(BlendFactor blendFactor)
|
|
|
|
{
|
|
|
|
GLenum ret = GL_ONE;
|
|
|
|
switch (blendFactor)
|
|
|
|
{
|
|
|
|
case BlendFactor::ZERO:
|
|
|
|
ret = GL_ZERO;
|
|
|
|
break;
|
|
|
|
case BlendFactor::ONE:
|
|
|
|
ret = GL_ONE;
|
|
|
|
break;
|
|
|
|
case BlendFactor::SRC_COLOR:
|
|
|
|
ret = GL_SRC_COLOR;
|
|
|
|
break;
|
|
|
|
case BlendFactor::ONE_MINUS_SRC_COLOR:
|
|
|
|
ret = GL_ONE_MINUS_SRC_COLOR;
|
|
|
|
break;
|
|
|
|
case BlendFactor::SRC_ALPHA:
|
|
|
|
ret = GL_SRC_ALPHA;
|
|
|
|
break;
|
|
|
|
case BlendFactor::ONE_MINUS_SRC_ALPHA:
|
|
|
|
ret = GL_ONE_MINUS_SRC_ALPHA;
|
|
|
|
break;
|
|
|
|
case BlendFactor::DST_COLOR:
|
|
|
|
ret = GL_DST_COLOR;
|
|
|
|
break;
|
|
|
|
case BlendFactor::ONE_MINUS_DST_COLOR:
|
|
|
|
ret = GL_ONE_MINUS_DST_COLOR;
|
|
|
|
break;
|
|
|
|
case BlendFactor::DST_ALPHA:
|
|
|
|
ret = GL_DST_ALPHA;
|
|
|
|
break;
|
|
|
|
case BlendFactor::ONE_MINUS_DST_ALPHA:
|
|
|
|
ret = GL_ONE_MINUS_DST_ALPHA;
|
|
|
|
break;
|
|
|
|
case BlendFactor::SRC_ALPHA_SATURATE:
|
|
|
|
ret = GL_SRC_ALPHA_SATURATE;
|
|
|
|
break;
|
|
|
|
case BlendFactor::BLEND_CLOLOR:
|
|
|
|
ret = GL_BLEND_COLOR;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLFrontFace(Winding winding)
|
|
|
|
{
|
|
|
|
if (Winding::CLOCK_WISE == winding)
|
|
|
|
return GL_CW;
|
|
|
|
else
|
|
|
|
return GL_CCW;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLPrimitiveType(PrimitiveType primitiveType)
|
|
|
|
{
|
|
|
|
GLenum ret = GL_TRIANGLES;
|
|
|
|
switch (primitiveType)
|
|
|
|
{
|
|
|
|
case PrimitiveType::POINT:
|
|
|
|
ret = GL_POINTS;
|
|
|
|
break;
|
|
|
|
case PrimitiveType::LINE:
|
|
|
|
ret = GL_LINES;
|
|
|
|
break;
|
|
|
|
case PrimitiveType::LINE_STRIP:
|
|
|
|
ret = GL_LINE_STRIP;
|
|
|
|
break;
|
|
|
|
case PrimitiveType::TRIANGLE:
|
|
|
|
ret = GL_TRIANGLES;
|
|
|
|
break;
|
|
|
|
case PrimitiveType::TRIANGLE_STRIP:
|
|
|
|
ret = GL_TRIANGLE_STRIP;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLIndexType(IndexFormat indexType)
|
|
|
|
{
|
|
|
|
GLenum ret = GL_BYTE;
|
|
|
|
switch (indexType)
|
|
|
|
{
|
|
|
|
case IndexFormat::U_INT:
|
|
|
|
ret = GL_UNSIGNED_INT;
|
|
|
|
break;
|
|
|
|
case IndexFormat::U_SHORT:
|
|
|
|
ret = GL_UNSIGNED_SHORT;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLenum UtilsGL::toGLCullMode(CullMode mode)
|
|
|
|
{
|
|
|
|
if (CullMode::BACK == mode)
|
|
|
|
return GL_BACK;
|
|
|
|
else
|
|
|
|
return GL_FRONT;
|
|
|
|
}
|
|
|
|
|
|
|
|
CC_BACKEND_END
|