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VideoBackends: Use VideoCommon shader generators for efb2tex copies.

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This will generate one shader per copy format. For now, it is the same
shader with the colmat hard coded. So it should already improve the GPU
performance a bit, but a rewrite of the shader generator is suggested.

Half of the patch is done by linkmauve1:
VideoCommon: Reorganise the shader writes.
This commit is contained in:
Markus Wick
2017-08-04 17:56:24 +02:00
committed by degasus
parent 2b2941d0c9
commit 491c10ec96
15 changed files with 468 additions and 211 deletions
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301
Source/Core/VideoCommon/TextureConverterShaderGen.cpp Normal file
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// Copyright 2017 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <array>
#include <cstring>
#include "Common/Assert.h"
#include "Common/CommonTypes.h"
#include "VideoCommon/BPMemory.h"
#include "VideoCommon/TextureConverterShaderGen.h"
#include "VideoCommon/VideoCommon.h"
#include "VideoCommon/VideoConfig.h"
TextureConverterShaderUid GetTextureConverterShaderUid(EFBCopyFormat dst_format, bool is_depth_copy,
bool is_intensity, bool scale_by_half)
{
TextureConverterShaderUid out;
convertion_shader_uid_data* uid_data = out.GetUidData<convertion_shader_uid_data>();
memset(uid_data, 0, sizeof(*uid_data));
uid_data->dst_format = dst_format;
uid_data->efb_has_alpha = bpmem.zcontrol.pixel_format == PEControl::RGBA6_Z24;
uid_data->is_depth_copy = is_depth_copy;
uid_data->is_intensity = is_intensity;
uid_data->scale_by_half = scale_by_half;
return out;
}
ShaderCode GenerateTextureConverterShaderCode(APIType api_type,
const convertion_shader_uid_data* uid_data)
{
ShaderCode out;
std::array<float, 28> colmat = {};
float* const const_add = &colmat[16];
float* const color_mask = &colmat[20];
color_mask[0] = color_mask[1] = color_mask[2] = color_mask[3] = 255.0f;
color_mask[4] = color_mask[5] = color_mask[6] = color_mask[7] = 1.0f / 255.0f;
if (api_type == APIType::OpenGL)
out.Write("SAMPLER_BINDING(9) uniform sampler2DArray samp9;\n"
"#define samp0 samp9\n"
"#define uv0 f_uv0\n"
"in vec3 uv0;\n"
"out vec4 ocol0;\n");
else if (api_type == APIType::Vulkan)
out.Write("SAMPLER_BINDING(0) uniform sampler2DArray samp0;\n"
"layout(location = 0) in vec3 uv0;\n"
"layout(location = 1) in vec4 col0;\n"
"layout(location = 0) out vec4 ocol0;");
bool mono_depth = uid_data->is_depth_copy && g_ActiveConfig.bStereoEFBMonoDepth;
out.Write("void main(){\n"
" vec4 texcol = texture(samp0, %s);\n",
mono_depth ? "vec3(uv0.xy, 0.0)" : "uv0");
if (uid_data->is_depth_copy)
{
switch (uid_data->dst_format)
{
case EFBCopyFormat::R4: // Z4
colmat[3] = colmat[7] = colmat[11] = colmat[15] = 1.0f;
break;
case EFBCopyFormat::R8_0x1: // Z8
case EFBCopyFormat::R8: // Z8H
colmat[0] = colmat[4] = colmat[8] = colmat[12] = 1.0f;
break;
case EFBCopyFormat::RA8: // Z16
colmat[1] = colmat[5] = colmat[9] = colmat[12] = 1.0f;
break;
case EFBCopyFormat::RG8: // Z16 (reverse order)
colmat[0] = colmat[4] = colmat[8] = colmat[13] = 1.0f;
break;
case EFBCopyFormat::RGBA8: // Z24X8
colmat[0] = colmat[5] = colmat[10] = 1.0f;
break;
case EFBCopyFormat::G8: // Z8M
colmat[1] = colmat[5] = colmat[9] = colmat[13] = 1.0f;
break;
case EFBCopyFormat::B8: // Z8L
colmat[2] = colmat[6] = colmat[10] = colmat[14] = 1.0f;
break;
case EFBCopyFormat::GB8: // Z16L - copy lower 16 depth bits
// expected to be used as an IA8 texture (upper 8 bits stored as intensity, lower 8 bits
// stored as alpha)
// Used e.g. in Zelda: Skyward Sword
colmat[1] = colmat[5] = colmat[9] = colmat[14] = 1.0f;
break;
default:
ERROR_LOG(VIDEO, "Unknown copy zbuf format: 0x%X", static_cast<int>(uid_data->dst_format));
colmat[2] = colmat[5] = colmat[8] = 1.0f;
break;
}
}
else if (uid_data->is_intensity)
{
const_add[0] = const_add[1] = const_add[2] = 16.0f / 255.0f;
switch (uid_data->dst_format)
{
case EFBCopyFormat::R4: // I4
case EFBCopyFormat::R8_0x1: // I8
case EFBCopyFormat::R8: // I8
case EFBCopyFormat::RA4: // IA4
case EFBCopyFormat::RA8: // IA8
// TODO - verify these coefficients
colmat[0] = 0.257f;
colmat[1] = 0.504f;
colmat[2] = 0.098f;
colmat[4] = 0.257f;
colmat[5] = 0.504f;
colmat[6] = 0.098f;
colmat[8] = 0.257f;
colmat[9] = 0.504f;
colmat[10] = 0.098f;
if (uid_data->dst_format == EFBCopyFormat::R4 ||
uid_data->dst_format == EFBCopyFormat::R8_0x1 ||
uid_data->dst_format == EFBCopyFormat::R8)
{
colmat[12] = 0.257f;
colmat[13] = 0.504f;
colmat[14] = 0.098f;
const_add[3] = 16.0f / 255.0f;
if (uid_data->dst_format == EFBCopyFormat::R4)
{
color_mask[0] = color_mask[1] = color_mask[2] = 255.0f / 16.0f;
color_mask[4] = color_mask[5] = color_mask[6] = 1.0f / 15.0f;
}
}
else // alpha
{
colmat[15] = 1;
if (uid_data->dst_format == EFBCopyFormat::RA4)
{
color_mask[0] = color_mask[1] = color_mask[2] = color_mask[3] = 255.0f / 16.0f;
color_mask[4] = color_mask[5] = color_mask[6] = color_mask[7] = 1.0f / 15.0f;
}
}
break;
default:
ERROR_LOG(VIDEO, "Unknown copy intensity format: 0x%X",
static_cast<int>(uid_data->dst_format));
colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;
break;
}
}
else
{
switch (uid_data->dst_format)
{
case EFBCopyFormat::R4: // R4
colmat[0] = colmat[4] = colmat[8] = colmat[12] = 1;
color_mask[0] = 255.0f / 16.0f;
color_mask[4] = 1.0f / 15.0f;
break;
case EFBCopyFormat::R8_0x1: // R8
case EFBCopyFormat::R8: // R8
colmat[0] = colmat[4] = colmat[8] = colmat[12] = 1;
break;
case EFBCopyFormat::RA4: // RA4
colmat[0] = colmat[4] = colmat[8] = colmat[15] = 1.0f;
color_mask[0] = color_mask[3] = 255.0f / 16.0f;
color_mask[4] = color_mask[7] = 1.0f / 15.0f;
if (!uid_data->efb_has_alpha)
{
color_mask[3] = 0.0f;
const_add[3] = 1.0f;
}
break;
case EFBCopyFormat::RA8: // RA8
colmat[0] = colmat[4] = colmat[8] = colmat[15] = 1.0f;
if (!uid_data->efb_has_alpha)
{
color_mask[3] = 0.0f;
const_add[3] = 1.0f;
}
break;
case EFBCopyFormat::A8: // A8
colmat[3] = colmat[7] = colmat[11] = colmat[15] = 1.0f;
if (!uid_data->efb_has_alpha)
{
color_mask[3] = 0.0f;
const_add[0] = 1.0f;
const_add[1] = 1.0f;
const_add[2] = 1.0f;
const_add[3] = 1.0f;
}
break;
case EFBCopyFormat::G8: // G8
colmat[1] = colmat[5] = colmat[9] = colmat[13] = 1.0f;
break;
case EFBCopyFormat::B8: // B8
colmat[2] = colmat[6] = colmat[10] = colmat[14] = 1.0f;
break;
case EFBCopyFormat::RG8: // RG8
colmat[0] = colmat[4] = colmat[8] = colmat[13] = 1.0f;
break;
case EFBCopyFormat::GB8: // GB8
colmat[1] = colmat[5] = colmat[9] = colmat[14] = 1.0f;
break;
case EFBCopyFormat::RGB565: // RGB565
colmat[0] = colmat[5] = colmat[10] = 1.0f;
color_mask[0] = color_mask[2] = 255.0f / 8.0f;
color_mask[4] = color_mask[6] = 1.0f / 31.0f;
color_mask[1] = 255.0f / 4.0f;
color_mask[5] = 1.0f / 63.0f;
const_add[3] = 1.0f; // set alpha to 1
break;
case EFBCopyFormat::RGB5A3: // RGB5A3
colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;
color_mask[0] = color_mask[1] = color_mask[2] = 255.0f / 8.0f;
color_mask[4] = color_mask[5] = color_mask[6] = 1.0f / 31.0f;
color_mask[3] = 255.0f / 32.0f;
color_mask[7] = 1.0f / 7.0f;
if (!uid_data->efb_has_alpha)
{
color_mask[3] = 0.0f;
const_add[3] = 1.0f;
}
break;
case EFBCopyFormat::RGBA8: // RGBA8
colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;
if (!uid_data->efb_has_alpha)
{
color_mask[3] = 0.0f;
const_add[3] = 1.0f;
}
break;
case EFBCopyFormat::XFB: // XFB copy, we just pretend it's an RGBX copy
colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;
color_mask[3] = 0.0f;
const_add[3] = 1.0f;
break;
default:
ERROR_LOG(VIDEO, "Unknown copy color format: 0x%X", static_cast<int>(uid_data->dst_format));
colmat[0] = colmat[5] = colmat[10] = colmat[15] = 1.0f;
break;
}
}
out.Write(" const vec4 colmat[7] = {\n");
for (size_t i = 0; i < colmat.size() / 4; i++)
{
out.Write(" vec4(%f, %f, %f, %f)%s\n", colmat[i * 4 + 0], colmat[i * 4 + 1],
colmat[i * 4 + 2], colmat[i * 4 + 3], i < 7 ? "," : "");
}
out.Write(" };\n");
if (uid_data->is_depth_copy)
{
if (api_type == APIType::Vulkan)
out.Write("texcol.x = 1.0 - texcol.x;\n");
out.Write(" int depth = int(texcol.x * 16777216.0);\n"
// Convert to Z24 format
" ivec4 workspace;\n"
" workspace.r = (depth >> 16) & 255;\n"
" workspace.g = (depth >> 8) & 255;\n"
" workspace.b = depth & 255;\n"
// Convert to Z4 format
" workspace.a = (depth >> 16) & 0xF0;\n"
// Normalize components to [0.0..1.0]
" texcol = vec4(workspace) / 255.0;\n");
}
else
{
out.Write(" texcol = floor(texcol * colmat[5]) * colmat[6];\n");
}
out.Write(" ocol0 = texcol * mat4(colmat[0], colmat[1], colmat[2], colmat[3]) + colmat[4];\n"
"}\n");
return out;
}