208 Source/Core/VideoCommon/TextureConverterShaderGen.cpp
View file
@@ -32,23 +32,23 @@ static void WriteHeader(APIType api_type, ShaderCode& out)
{
if (api_type == APIType::D3D)
{
out.Write("cbuffer PSBlock : register(b0) {\n"
" float2 src_offset, src_size;\n"
" float3 filter_coefficients;\n"
" float gamma_rcp;\n"
" float2 clamp_tb;\n"
" float pixel_height;\n"
"};\n\n");
out.WriteFmt("cbuffer PSBlock : register(b0) {{\n"
" float2 src_offset, src_size;\n"
" float3 filter_coefficients;\n"
" float gamma_rcp;\n"
" float2 clamp_tb;\n"
" float pixel_height;\n"
"}};\n\n");
}
else if (api_type == APIType::OpenGL || api_type == APIType::Vulkan)
{
out.Write("UBO_BINDING(std140, 1) uniform PSBlock {\n"
" float2 src_offset, src_size;\n"
" float3 filter_coefficients;\n"
" float gamma_rcp;\n"
" float2 clamp_tb;\n"
" float pixel_height;\n"
"};\n");
out.WriteFmt("UBO_BINDING(std140, 1) uniform PSBlock {{\n"
" float2 src_offset, src_size;\n"
" float3 filter_coefficients;\n"
" float gamma_rcp;\n"
" float2 clamp_tb;\n"
" float pixel_height;\n"
"}};\n");
}
}

@@ -59,35 +59,35 @@ ShaderCode GenerateVertexShader(APIType api_type)

if (api_type == APIType::D3D)
{
out.Write("void main(in uint id : SV_VertexID, out float3 v_tex0 : TEXCOORD0,\n"
" out float4 opos : SV_Position) {\n");
out.WriteFmt("void main(in uint id : SV_VertexID, out float3 v_tex0 : TEXCOORD0,\n"
" out float4 opos : SV_Position) {{\n");
}
else if (api_type == APIType::OpenGL || api_type == APIType::Vulkan)
{
if (g_ActiveConfig.backend_info.bSupportsGeometryShaders)
{
out.Write("VARYING_LOCATION(0) out VertexData {\n");
out.Write(" float3 v_tex0;\n");
out.Write("};\n");
out.WriteFmt("VARYING_LOCATION(0) out VertexData {{\n"
" float3 v_tex0;\n"
"}};\n");
}
else
{
out.Write("VARYING_LOCATION(0) out float3 v_tex0;\n");
out.WriteFmt("VARYING_LOCATION(0) out float3 v_tex0;\n");
}
out.Write("#define id gl_VertexID\n"
"#define opos gl_Position\n"
"void main() {\n");
out.WriteFmt("#define id gl_VertexID\n"
"#define opos gl_Position\n"
"void main() {{\n");
}
out.Write(" v_tex0 = float3(float((id << 1) & 2), float(id & 2), 0.0f);\n");
out.Write(
out.WriteFmt(" v_tex0 = float3(float((id << 1) & 2), float(id & 2), 0.0f);\n");
out.WriteFmt(
" opos = float4(v_tex0.xy * float2(2.0f, -2.0f) + float2(-1.0f, 1.0f), 0.0f, 1.0f);\n");
out.Write(" v_tex0 = float3(src_offset + (src_size * v_tex0.xy), 0.0f);\n");
out.WriteFmt(" v_tex0 = float3(src_offset + (src_size * v_tex0.xy), 0.0f);\n");

// NDC space is flipped in Vulkan
if (api_type == APIType::Vulkan)
out.Write(" opos.y = -opos.y;\n");
out.WriteFmt(" opos.y = -opos.y;\n");

out.Write("}\n");
out.WriteFmt("}}\n");

return out;
}
@@ -101,52 +101,52 @@ ShaderCode GeneratePixelShader(APIType api_type, const UidData* uid_data)

if (api_type == APIType::D3D)
{
out.Write("Texture2DArray tex0 : register(t0);\n"
"SamplerState samp0 : register(s0);\n"
"float4 SampleEFB(float3 uv, float y_offset) {\n"
" return tex0.Sample(samp0, float3(uv.x, clamp(uv.y + (y_offset * pixel_height), "
"clamp_tb.x, clamp_tb.y), %s));\n"
"}\n\n",
mono_depth ? "0.0" : "uv.z");
out.Write("void main(in float3 v_tex0 : TEXCOORD0, out float4 ocol0 : SV_Target)\n{\n");
out.WriteFmt("Texture2DArray tex0 : register(t0);\n"
"SamplerState samp0 : register(s0);\n"
"float4 SampleEFB(float3 uv, float y_offset) {{\n"
" return tex0.Sample(samp0, float3(uv.x, clamp(uv.y + (y_offset * pixel_height), "
"clamp_tb.x, clamp_tb.y), {}));\n"
"}}\n\n",
mono_depth ? "0.0" : "uv.z");
out.WriteFmt("void main(in float3 v_tex0 : TEXCOORD0, out float4 ocol0 : SV_Target)\n{{\n");
}
else if (api_type == APIType::OpenGL || api_type == APIType::Vulkan)
{
out.Write("SAMPLER_BINDING(0) uniform sampler2DArray samp0;\n");
out.Write("float4 SampleEFB(float3 uv, float y_offset) {\n"
" return texture(samp0, float3(uv.x, clamp(uv.y + (y_offset * pixel_height), "
"clamp_tb.x, clamp_tb.y), %s));\n"
"}\n",
mono_depth ? "0.0" : "uv.z");
out.WriteFmt("SAMPLER_BINDING(0) uniform sampler2DArray samp0;\n");
out.WriteFmt("float4 SampleEFB(float3 uv, float y_offset) {{\n"
" return texture(samp0, float3(uv.x, clamp(uv.y + (y_offset * pixel_height), "
"clamp_tb.x, clamp_tb.y), {}));\n"
"}}\n",
mono_depth ? "0.0" : "uv.z");
if (g_ActiveConfig.backend_info.bSupportsGeometryShaders)
{
out.Write("VARYING_LOCATION(0) in VertexData {\n");
out.Write(" float3 v_tex0;\n");
out.Write("};\n");
out.WriteFmt("VARYING_LOCATION(0) in VertexData {{\n"
" float3 v_tex0;\n"
"}};\n");
}
else
{
out.Write("VARYING_LOCATION(0) in vec3 v_tex0;\n");
out.WriteFmt("VARYING_LOCATION(0) in vec3 v_tex0;\n");
}
out.Write("FRAGMENT_OUTPUT_LOCATION(0) out vec4 ocol0;"
"void main()\n{\n");
out.WriteFmt("FRAGMENT_OUTPUT_LOCATION(0) out vec4 ocol0;"
"void main()\n{{\n");
}

// The copy filter applies to both color and depth copies. This has been verified on hardware.
// The filter is only applied to the RGB channels, the alpha channel is left intact.
if (uid_data->copy_filter)
{
out.Write(" float4 prev_row = SampleEFB(v_tex0, -1.0f);\n"
" float4 current_row = SampleEFB(v_tex0, 0.0f);\n"
" float4 next_row = SampleEFB(v_tex0, 1.0f);\n"
" float4 texcol = float4(min(prev_row.rgb * filter_coefficients[0] +\n"
" current_row.rgb * filter_coefficients[1] +\n"
" next_row.rgb * filter_coefficients[2], \n"
" float3(1, 1, 1)), current_row.a);\n");
out.WriteFmt(" float4 prev_row = SampleEFB(v_tex0, -1.0f);\n"
" float4 current_row = SampleEFB(v_tex0, 0.0f);\n"
" float4 next_row = SampleEFB(v_tex0, 1.0f);\n"
" float4 texcol = float4(min(prev_row.rgb * filter_coefficients[0] +\n"
" current_row.rgb * filter_coefficients[1] +\n"
" next_row.rgb * filter_coefficients[2], \n"
" float3(1, 1, 1)), current_row.a);\n");
}
else
{
out.Write(
out.WriteFmt(
" float4 current_row = SampleEFB(v_tex0, 0.0f);\n"
" float4 texcol = float4(min(current_row.rgb * filter_coefficients[1], float3(1, 1, 1)),\n"
" current_row.a);\n");
@@ -155,62 +155,62 @@ ShaderCode GeneratePixelShader(APIType api_type, const UidData* uid_data)
if (uid_data->is_depth_copy)
{
if (!g_ActiveConfig.backend_info.bSupportsReversedDepthRange)
out.Write("texcol.x = 1.0 - texcol.x;\n");
out.WriteFmt("texcol.x = 1.0 - texcol.x;\n");

out.Write(" int depth = int(texcol.x * 16777216.0);\n"
out.WriteFmt(" int depth = int(texcol.x * 16777216.0);\n"

// Convert to Z24 format
" int4 workspace;\n"
" workspace.r = (depth >> 16) & 255;\n"
" workspace.g = (depth >> 8) & 255;\n"
" workspace.b = depth & 255;\n"
// Convert to Z24 format
" int4 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"
// Convert to Z4 format
" workspace.a = (depth >> 16) & 0xF0;\n"

// Normalize components to [0.0..1.0]
" texcol = float4(workspace) / 255.0;\n");
// Normalize components to [0.0..1.0]
" texcol = float4(workspace) / 255.0;\n");
switch (uid_data->dst_format)
{
case EFBCopyFormat::R4: // Z4
out.Write(" ocol0 = texcol.aaaa;\n");
out.WriteFmt(" ocol0 = texcol.aaaa;\n");
break;

case EFBCopyFormat::R8_0x1: // Z8
case EFBCopyFormat::R8: // Z8H
out.Write(" ocol0 = texcol.rrrr;\n");
out.WriteFmt(" ocol0 = texcol.rrrr;\n");
break;

case EFBCopyFormat::RA8: // Z16
out.Write(" ocol0 = texcol.gggr;\n");
out.WriteFmt(" ocol0 = texcol.gggr;\n");
break;

case EFBCopyFormat::RG8: // Z16 (reverse order)
out.Write(" ocol0 = texcol.rrrg;\n");
out.WriteFmt(" ocol0 = texcol.rrrg;\n");
break;

case EFBCopyFormat::RGBA8: // Z24X8
out.Write(" ocol0 = float4(texcol.rgb, 1.0);\n");
out.WriteFmt(" ocol0 = float4(texcol.rgb, 1.0);\n");
break;

case EFBCopyFormat::G8: // Z8M
out.Write(" ocol0 = texcol.gggg;\n");
out.WriteFmt(" ocol0 = texcol.gggg;\n");
break;

case EFBCopyFormat::B8: // Z8L
out.Write(" ocol0 = texcol.bbbb;\n");
out.WriteFmt(" ocol0 = texcol.bbbb;\n");
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
out.Write(" ocol0 = texcol.gggb;\n");
out.WriteFmt(" ocol0 = texcol.gggb;\n");
break;

default:
ERROR_LOG(VIDEO, "Unknown copy zbuf format: 0x%X", static_cast<int>(uid_data->dst_format));
out.Write(" ocol0 = float4(texcol.bgr, 0.0);\n");
out.WriteFmt(" ocol0 = float4(texcol.bgr, 0.0);\n");
break;
}
}
@@ -229,99 +229,99 @@ ShaderCode GeneratePixelShader(APIType api_type, const UidData* uid_data)
case EFBCopyFormat::RA4: // IA4
case EFBCopyFormat::RA8: // IA8
if (has_four_bits)
out.Write(" texcol = float4(int4(texcol * 255.0) & 0xF0) * (1.0 / 240.0);\n");
out.WriteFmt(" texcol = float4(int4(texcol * 255.0) & 0xF0) * (1.0 / 240.0);\n");

// TODO - verify these coefficients
out.Write(" const float3 coefficients = float3(0.257, 0.504, 0.098);\n"
" float intensity = dot(texcol.rgb, coefficients) + 16.0 / 255.0;\n"
" ocol0 = float4(intensity, intensity, intensity, %s);\n",
has_alpha ? "texcol.a" : "intensity");
out.WriteFmt(" const float3 coefficients = float3(0.257, 0.504, 0.098);\n"
" float intensity = dot(texcol.rgb, coefficients) + 16.0 / 255.0;\n"
" ocol0 = float4(intensity, intensity, intensity, {});\n",
has_alpha ? "texcol.a" : "intensity");
break;

default:
ERROR_LOG(VIDEO, "Unknown copy intensity format: 0x%X",
static_cast<int>(uid_data->dst_format));
out.Write(" ocol0 = texcol;\n");
out.WriteFmt(" ocol0 = texcol;\n");
break;
}
}
else
{
if (!uid_data->efb_has_alpha)
out.Write(" texcol.a = 1.0;\n");
out.WriteFmt(" texcol.a = 1.0;\n");

switch (uid_data->dst_format)
{
case EFBCopyFormat::R4: // R4
out.Write(" float red = float(int(texcol.r * 255.0) & 0xF0) * (1.0 / 240.0);\n"
" ocol0 = float4(red, red, red, red);\n");
out.WriteFmt(" float red = float(int(texcol.r * 255.0) & 0xF0) * (1.0 / 240.0);\n"
" ocol0 = float4(red, red, red, red);\n");
break;

case EFBCopyFormat::R8_0x1: // R8
case EFBCopyFormat::R8: // R8
out.Write(" ocol0 = texcol.rrrr;\n");
out.WriteFmt(" ocol0 = texcol.rrrr;\n");
break;

case EFBCopyFormat::RA4: // RA4
out.Write(" float2 red_alpha = float2(int2(texcol.ra * 255.0) & 0xF0) * (1.0 / 240.0);\n"
" ocol0 = red_alpha.rrrg;\n");
out.WriteFmt(" float2 red_alpha = float2(int2(texcol.ra * 255.0) & 0xF0) * (1.0 / 240.0);\n"
" ocol0 = red_alpha.rrrg;\n");
break;

case EFBCopyFormat::RA8: // RA8
out.Write(" ocol0 = texcol.rrra;\n");
out.WriteFmt(" ocol0 = texcol.rrra;\n");
break;

case EFBCopyFormat::A8: // A8
out.Write(" ocol0 = texcol.aaaa;\n");
out.WriteFmt(" ocol0 = texcol.aaaa;\n");
break;

case EFBCopyFormat::G8: // G8
out.Write(" ocol0 = texcol.gggg;\n");
out.WriteFmt(" ocol0 = texcol.gggg;\n");
break;

case EFBCopyFormat::B8: // B8
out.Write(" ocol0 = texcol.bbbb;\n");
out.WriteFmt(" ocol0 = texcol.bbbb;\n");
break;

case EFBCopyFormat::RG8: // RG8
out.Write(" ocol0 = texcol.rrrg;\n");
out.WriteFmt(" ocol0 = texcol.rrrg;\n");
break;

case EFBCopyFormat::GB8: // GB8
out.Write(" ocol0 = texcol.gggb;\n");
out.WriteFmt(" ocol0 = texcol.gggb;\n");
break;

case EFBCopyFormat::RGB565: // RGB565
out.Write(" float2 red_blue = float2(int2(texcol.rb * 255.0) & 0xF8) * (1.0 / 248.0);\n"
" float green = float(int(texcol.g * 255.0) & 0xFC) * (1.0 / 252.0);\n"
" ocol0 = float4(red_blue.r, green, red_blue.g, 1.0);\n");
out.WriteFmt(" float2 red_blue = float2(int2(texcol.rb * 255.0) & 0xF8) * (1.0 / 248.0);\n"
" float green = float(int(texcol.g * 255.0) & 0xFC) * (1.0 / 252.0);\n"
" ocol0 = float4(red_blue.r, green, red_blue.g, 1.0);\n");
break;

case EFBCopyFormat::RGB5A3: // RGB5A3
// TODO: The MSB controls whether we have RGB5 or RGB4A3, this selection
// will need to be implemented once we move away from floats.
out.Write(" float3 color = float3(int3(texcol.rgb * 255.0) & 0xF8) * (1.0 / 248.0);\n"
" float alpha = float(int(texcol.a * 255.0) & 0xE0) * (1.0 / 224.0);\n"
" ocol0 = float4(color, alpha);\n");
out.WriteFmt(" float3 color = float3(int3(texcol.rgb * 255.0) & 0xF8) * (1.0 / 248.0);\n"
" float alpha = float(int(texcol.a * 255.0) & 0xE0) * (1.0 / 224.0);\n"
" ocol0 = float4(color, alpha);\n");
break;

case EFBCopyFormat::RGBA8: // RGBA8
out.Write(" ocol0 = texcol;\n");
out.WriteFmt(" ocol0 = texcol;\n");
break;

case EFBCopyFormat::XFB:
out.Write(
out.WriteFmt(
" ocol0 = float4(pow(texcol.rgb, float3(gamma_rcp, gamma_rcp, gamma_rcp)), 1.0f);\n");
break;

default:
ERROR_LOG(VIDEO, "Unknown copy color format: 0x%X", static_cast<int>(uid_data->dst_format));
out.Write(" ocol0 = texcol;\n");
out.WriteFmt(" ocol0 = texcol;\n");
break;
}
}

out.Write("}\n");
out.WriteFmt("}}\n");

return out;
}