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Added imageLoad/Store overloads.

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This commit is contained in:
Branimir Karadžić 2015-03-02 17:58:43 -08:00
parent c69ee80707
commit 93b5b0a20c
1 changed files with 23 additions and 19 deletions
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42
src/bgfx_compute.sh
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@ -54,16 +54,29 @@ vec2 unpackHalf2x16(uint _x)
#define NUM_THREADS(_x, _y, _z) [numthreads(_x, _y, _z)]
vec4 imageLoad(Texture2D _image, ivec2 _uv)
{
return _image.Load(uint3(_uv.xy, 0) );
}
#define __IMAGE_IMPL(_textureType, _storeComponents, _type, _loadComponents) \
_type imageLoad(Texture2D<_textureType> _image, ivec2 _uv) \
{ \
return _image[_uv]._loadComponents; \
} \
\
void imageStore(RWTexture2D<_textureType> _image, ivec2 _uv, _type _value) \
{ \
_image[_uv] = _value._storeComponents; \
}
uint4 imageLoad(Texture2D<uint> _image, ivec2 _uv)
{
uint rr = _image.Load(uint3(_uv.xy, 0) );
return uint4(rr, rr, rr, rr);
}
__IMAGE_IMPL(float, x, vec4, xxxx)
__IMAGE_IMPL(vec2, xy, vec4, xyyy)
__IMAGE_IMPL(vec3, xyz, vec4, xyzz)
__IMAGE_IMPL(vec4, xyzw, vec4, xyzw)
__IMAGE_IMPL(uint, x, uvec4, xxxx)
__IMAGE_IMPL(uvec2, xy, uvec4, xyyy)
__IMAGE_IMPL(uvec3, xyz, uvec4, xyzz)
__IMAGE_IMPL(uvec4, xyzw, uvec4, xyzw)
__IMAGE_IMPL(int, x, ivec4, xxxx)
__IMAGE_IMPL(ivec2, xy, ivec4, xyyy)
__IMAGE_IMPL(ivec3, xyz, ivec4, xyzz)
__IMAGE_IMPL(ivec4, xyzw, ivec4, xyzw)
uint4 imageLoad(RWTexture2D<uint> _image, ivec2 _uv)
{
@ -92,16 +105,6 @@ ivec2 imageSize(RWTexture2D<uint> _image)
return result;
}
void imageStore(RWTexture2D<float4> _image, ivec2 _uv, vec4 _rgba)
{
_image[_uv] = _rgba;
}
void imageStore(RWTexture2D<uint> _image, ivec2 _uv, uvec4 _r)
{
_image[_uv] = _r.x;
}
#define __ATOMIC_IMPL_TYPE(_genType, _glFunc, _dxFunc) \
_genType _glFunc(_genType _mem, _genType _data) \
{ \
@ -153,6 +156,7 @@ uint atomicCompSwap(uint _mem, uint _compare, uint _data)
#define __IMAGE2D_XX(_name, _reg, _access) \
layout(rgba8, binding=_reg) _access uniform highp image2D _name
#define readwrite
#define IMAGE2D_RO(_name, _reg) __IMAGE2D_XX(_name, _reg, readonly)
#define IMAGE2D_RW(_name, _reg) __IMAGE2D_XX(_name, _reg, readwrite)
#define IMAGE2D_WR(_name, _reg) __IMAGE2D_XX(_name, _reg, writeonly)