dolphin/Source/Core/VideoCommon/PixelShaderGen.h

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// Copyright 2008 Dolphin Emulator Project
2015-05-17 23:08:10 +00:00
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include "Common/CommonTypes.h"
#include "VideoCommon/LightingShaderGen.h"
#include "VideoCommon/ShaderGenCommon.h"
enum class APIType;
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#pragma pack(1)
struct pixel_shader_uid_data
{
// TODO: Optimize field order for easy access!
u32 num_values; // TODO: Shouldn't be a u32
u32 NumValues() const { return num_values; }
u32 components : 2;
u32 pad0 : 2;
u32 useDstAlpha : 1;
u32 Pretest : 2;
u32 nIndirectStagesUsed : 4;
u32 genMode_numtexgens : 4;
u32 genMode_numtevstages : 4;
u32 genMode_numindstages : 3;
u32 alpha_test_comp0 : 3;
u32 alpha_test_comp1 : 3;
u32 alpha_test_logic : 2;
u32 alpha_test_use_zcomploc_hack : 1;
u32 fog_proj : 1;
u32 fog_fsel : 3;
u32 fog_RangeBaseEnabled : 1;
u32 ztex_op : 2;
u32 per_pixel_depth : 1;
u32 forced_early_z : 1;
u32 early_ztest : 1;
u32 late_ztest : 1;
u32 bounding_box : 1;
u32 zfreeze : 1;
u32 numColorChans : 2;
u32 rgba6_format : 1;
u32 dither : 1;
u32 uint_output : 1;
u32 blend_enable : 1; // Only used with shader_framebuffer_fetch blend
u32 blend_src_factor : 3; // Only used with shader_framebuffer_fetch blend
u32 blend_src_factor_alpha : 3; // Only used with shader_framebuffer_fetch blend
u32 blend_dst_factor : 3; // Only used with shader_framebuffer_fetch blend
u32 blend_dst_factor_alpha : 3; // Only used with shader_framebuffer_fetch blend
u32 blend_subtract : 1; // Only used with shader_framebuffer_fetch blend
u32 blend_subtract_alpha : 1; // Only used with shader_framebuffer_fetch blend
u32 texMtxInfo_n_projection : 8; // 8x1 bit
u32 tevindref_bi0 : 3;
u32 tevindref_bc0 : 3;
u32 tevindref_bi1 : 3;
u32 tevindref_bc1 : 3;
u32 tevindref_bi2 : 3;
u32 tevindref_bc3 : 3;
u32 tevindref_bi4 : 3;
u32 tevindref_bc4 : 3;
void SetTevindrefValues(int index, u32 texcoord, u32 texmap)
{
if (index == 0)
{
tevindref_bc0 = texcoord;
tevindref_bi0 = texmap;
}
else if (index == 1)
{
tevindref_bc1 = texcoord;
tevindref_bi1 = texmap;
}
else if (index == 2)
{
tevindref_bc3 = texcoord;
tevindref_bi2 = texmap;
}
else if (index == 3)
{
tevindref_bc4 = texcoord;
tevindref_bi4 = texmap;
}
}
u32 GetTevindirefCoord(int index) const
{
if (index == 0)
{
return tevindref_bc0;
}
else if (index == 1)
{
return tevindref_bc1;
}
else if (index == 2)
{
return tevindref_bc3;
}
else if (index == 3)
{
return tevindref_bc4;
}
return 0;
}
u32 GetTevindirefMap(int index) const
{
if (index == 0)
{
return tevindref_bi0;
}
else if (index == 1)
{
return tevindref_bi1;
}
else if (index == 2)
{
return tevindref_bi2;
}
else if (index == 3)
{
return tevindref_bi4;
}
return 0;
}
struct
{
// TODO: Can save a lot space by removing the padding bits
u32 cc : 24;
u32 ac : 24; // tswap and rswap are left blank (encoded into the tevksel fields below)
u32 tevorders_texmap : 3;
u32 tevorders_texcoord : 3;
u32 tevorders_enable : 1;
u32 tevorders_colorchan : 3;
u32 pad1 : 6;
// TODO: Clean up the swapXY mess
u32 hasindstage : 1;
u32 tevind : 21;
u32 tevksel_swap1a : 2;
u32 tevksel_swap2a : 2;
u32 tevksel_swap1b : 2;
u32 tevksel_swap2b : 2;
u32 pad2 : 2;
u32 tevksel_swap1c : 2;
u32 tevksel_swap2c : 2;
u32 tevksel_swap1d : 2;
u32 tevksel_swap2d : 2;
u32 tevksel_kc : 5;
u32 tevksel_ka : 5;
u32 pad3 : 14;
} stagehash[16];
LightingUidData lighting;
};
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#pragma pack()
typedef ShaderUid<pixel_shader_uid_data> PixelShaderUid;
ShaderCode GeneratePixelShaderCode(APIType ApiType, const ShaderHostConfig& host_config,
const pixel_shader_uid_data* uid_data);
void WritePixelShaderCommonHeader(ShaderCode& out, APIType ApiType, u32 num_texgens,
bool per_pixel_lighting, bool bounding_box);
void ClearUnusedPixelShaderUidBits(APIType ApiType, PixelShaderUid* uid);
PixelShaderUid GetPixelShaderUid();