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Vulkan: Make scaling shaders compatible + fixes #1392

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Vulkan: Make scaling shaders compatible + fixes #1392

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49bd6ce
Vulkan: Wire up bicubic and hermite scaling shaders
goeiecool9999 Oct 25, 2024
0f3fbef
GraphicPack: Fix key for downscale magnification filter
goeiecool9999 Oct 26, 2024
2ae490b
match OpenGL minification filtering and wrapping modes
goeiecool9999 Oct 26, 2024
03074e7
use inputResolution
goeiecool9999 Oct 27, 2024
49b6fb4
take bilinear changes from #879
goeiecool9999 Oct 27, 2024
0ea358b
take hermite changes from #879
goeiecool9999 Oct 27, 2024
a0a86cc
fix bicubic by using linear mag filter
goeiecool9999 Oct 27, 2024
becdd55
cleanup ifdef
goeiecool9999 Oct 27, 2024
21899d1
Respect minification selection
goeiecool9999 Oct 28, 2024
c86e164
programmatically prepend shader preamble
goeiecool9999 Oct 28, 2024
cd4284a
specify wrap mode and min filter for OpenGL to be consistent with Vulkan
goeiecool9999 Oct 28, 2024
c98a0c3
Change uniforms and cleanup code
goeiecool9999 Oct 29, 2024
6074e90
Move getting the effective res into SetUniformParameters
goeiecool9999 Oct 29, 2024
826bb92
use a single PushConstants command
goeiecool9999 Oct 29, 2024
e2e9e81
Bump GLSL version to 430 (and formatting
goeiecool9999 Oct 29, 2024
49e0840
rename parameter
goeiecool9999 Oct 30, 2024
79c4082
rename downscaleMagFilter -> downscaleMinFilter
goeiecool9999 Nov 13, 2024
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2 changes: 1 addition & 1 deletion src/Cafe/GraphicPack/GraphicPack2.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -960,7 +960,7 @@ bool GraphicPack2::Activate()
auto option_upscale = rules.FindOption("upscaleMagFilter");
if(option_upscale && boost::iequals(*option_upscale, "NearestNeighbor"))
m_output_settings.upscale_filter = LatteTextureView::MagFilter::kNearestNeighbor;
auto option_downscale = rules.FindOption("NearestNeighbor");
auto option_downscale = rules.FindOption("downscaleMinFilter");
if (option_downscale && boost::iequals(*option_downscale, "NearestNeighbor"))
m_output_settings.downscale_filter = LatteTextureView::MagFilter::kNearestNeighbor;
}
Expand Down
9 changes: 1 addition & 8 deletions src/Cafe/HW/Latte/Core/LatteRenderTarget.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -933,13 +933,6 @@ void LatteRenderTarget_copyToBackbuffer(LatteTextureView* textureView, bool isPa
if (shader == nullptr)
{
sint32 scaling_filter = downscaling ? GetConfig().downscale_filter : GetConfig().upscale_filter;

if (g_renderer->GetType() == RendererAPI::Vulkan)
{
// force linear or nearest neighbor filter
if(scaling_filter != kLinearFilter && scaling_filter != kNearestNeighborFilter)
scaling_filter = kLinearFilter;
}

if (scaling_filter == kLinearFilter)
{
Expand All @@ -957,7 +950,7 @@ void LatteRenderTarget_copyToBackbuffer(LatteTextureView* textureView, bool isPa
else
shader = RendererOutputShader::s_bicubic_shader;

filter = LatteTextureView::MagFilter::kNearestNeighbor;
filter = LatteTextureView::MagFilter::kLinear;
}
else if (scaling_filter == kBicubicHermiteFilter)
{
Expand Down
11 changes: 7 additions & 4 deletions src/Cafe/HW/Latte/Renderer/OpenGL/OpenGLRenderer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -570,20 +570,23 @@ void OpenGLRenderer::DrawBackbufferQuad(LatteTextureView* texView, RendererOutpu
g_renderer->ClearColorbuffer(padView);
}

sint32 effectiveWidth, effectiveHeight;
texView->baseTexture->GetEffectiveSize(effectiveWidth, effectiveHeight, 0);

shader_unbind(RendererShader::ShaderType::kGeometry);
shader_bind(shader->GetVertexShader());
shader_bind(shader->GetFragmentShader());
shader->SetUniformParameters(*texView, { effectiveWidth, effectiveHeight }, { imageWidth, imageHeight });
shader->SetUniformParameters(*texView, {imageWidth, imageHeight});

// set viewport
glViewportIndexedf(0, imageX, imageY, imageWidth, imageHeight);

LatteTextureViewGL* texViewGL = (LatteTextureViewGL*)texView;
texture_bindAndActivate(texView, 0);

glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
texViewGL->samplerState.clampS = texViewGL->samplerState.clampT = 0xFF;

glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, useLinearTexFilter ? GL_LINEAR : GL_NEAREST);
texViewGL->samplerState.filterMin = 0xFFFFFFFF;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, useLinearTexFilter ? GL_LINEAR : GL_NEAREST);
texViewGL->samplerState.filterMag = 0xFFFFFFFF;

Expand Down
213 changes: 82 additions & 131 deletions src/Cafe/HW/Latte/Renderer/RendererOuputShader.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2,18 +2,7 @@
#include "Cafe/HW/Latte/Renderer/OpenGL/OpenGLRenderer.h"

const std::string RendererOutputShader::s_copy_shader_source =
R"(#version 420

#ifdef VULKAN
layout(location = 0) in vec2 passUV;
layout(binding = 0) uniform sampler2D textureSrc;
layout(location = 0) out vec4 colorOut0;
#else
in vec2 passUV;
layout(binding=0) uniform sampler2D textureSrc;
layout(location = 0) out vec4 colorOut0;
#endif

R"(
void main()
{
colorOut0 = vec4(texture(textureSrc, passUV).rgb,1.0);
Expand All @@ -22,20 +11,6 @@ void main()

const std::string RendererOutputShader::s_bicubic_shader_source =
R"(
#version 420

#ifdef VULKAN
layout(location = 0) in vec2 passUV;
layout(binding = 0) uniform sampler2D textureSrc;
layout(binding = 1) uniform vec2 textureSrcResolution;
layout(location = 0) out vec4 colorOut0;
#else
in vec2 passUV;
layout(binding=0) uniform sampler2D textureSrc;
uniform vec2 textureSrcResolution;
layout(location = 0) out vec4 colorOut0;
#endif

vec4 cubic(float x)
{
float x2 = x * x;
Expand All @@ -48,24 +23,23 @@ vec4 cubic(float x)
return w / 6.0;
}

vec4 bcFilter(vec2 texcoord, vec2 texscale)
vec4 bcFilter(vec2 uv, vec4 texelSize)
{
float fx = fract(texcoord.x);
float fy = fract(texcoord.y);
texcoord.x -= fx;
texcoord.y -= fy;
vec2 pixel = uv*texelSize.zw - 0.5;
vec2 pixelFrac = fract(pixel);
vec2 pixelInt = pixel - pixelFrac;

vec4 xcubic = cubic(fx);
vec4 ycubic = cubic(fy);
vec4 xcubic = cubic(pixelFrac.x);
vec4 ycubic = cubic(pixelFrac.y);

vec4 c = vec4(texcoord.x - 0.5, texcoord.x + 1.5, texcoord.y - 0.5, texcoord.y + 1.5);
vec4 c = vec4(pixelInt.x - 0.5, pixelInt.x + 1.5, pixelInt.y - 0.5, pixelInt.y + 1.5);
vec4 s = vec4(xcubic.x + xcubic.y, xcubic.z + xcubic.w, ycubic.x + ycubic.y, ycubic.z + ycubic.w);
vec4 offset = c + vec4(xcubic.y, xcubic.w, ycubic.y, ycubic.w) / s;

vec4 sample0 = texture(textureSrc, vec2(offset.x, offset.z) * texscale);
vec4 sample1 = texture(textureSrc, vec2(offset.y, offset.z) * texscale);
vec4 sample2 = texture(textureSrc, vec2(offset.x, offset.w) * texscale);
vec4 sample3 = texture(textureSrc, vec2(offset.y, offset.w) * texscale);
vec4 sample0 = texture(textureSrc, vec2(offset.x, offset.z) * texelSize.xy);
vec4 sample1 = texture(textureSrc, vec2(offset.y, offset.z) * texelSize.xy);
vec4 sample2 = texture(textureSrc, vec2(offset.x, offset.w) * texelSize.xy);
vec4 sample3 = texture(textureSrc, vec2(offset.y, offset.w) * texelSize.xy);

float sx = s.x / (s.x + s.y);
float sy = s.z / (s.z + s.w);
Expand All @@ -76,20 +50,13 @@ vec4 bcFilter(vec2 texcoord, vec2 texscale)
}

void main(){
colorOut0 = vec4(bcFilter(passUV*textureSrcResolution, vec2(1.0,1.0)/textureSrcResolution).rgb,1.0);
vec4 texelSize = vec4( 1.0 / textureSrcResolution.xy, textureSrcResolution.xy);
colorOut0 = vec4(bcFilter(passUV, texelSize).rgb,1.0);
}
)";

const std::string RendererOutputShader::s_hermite_shader_source =
R"(#version 420

in vec4 gl_FragCoord;
in vec2 passUV;
layout(binding=0) uniform sampler2D textureSrc;
uniform vec2 textureSrcResolution;
uniform vec2 outputResolution;
layout(location = 0) out vec4 colorOut0;

R"(
// https://www.shadertoy.com/view/MllSzX

vec3 CubicHermite (vec3 A, vec3 B, vec3 C, vec3 D, float t)
Expand All @@ -111,7 +78,7 @@ vec3 BicubicHermiteTexture(vec2 uv, vec4 texelSize)
vec2 frac = fract(pixel);
pixel = floor(pixel) / texelSize.zw - vec2(texelSize.xy/2.0);

vec4 doubleSize = texelSize*texelSize;
vec4 doubleSize = texelSize*2.0;

vec3 C00 = texture(textureSrc, pixel + vec2(-texelSize.x ,-texelSize.y)).rgb;
vec3 C10 = texture(textureSrc, pixel + vec2( 0.0 ,-texelSize.y)).rgb;
Expand Down Expand Up @@ -142,15 +109,17 @@ vec3 BicubicHermiteTexture(vec2 uv, vec4 texelSize)
}

void main(){
vec4 texelSize = vec4( 1.0 / outputResolution.xy, outputResolution.xy);
vec4 texelSize = vec4( 1.0 / textureSrcResolution.xy, textureSrcResolution.xy);
colorOut0 = vec4(BicubicHermiteTexture(passUV, texelSize), 1.0);
}
)";

RendererOutputShader::RendererOutputShader(const std::string& vertex_source, const std::string& fragment_source)
{
auto finalFragmentSrc = PrependFragmentPreamble(fragment_source);

m_vertex_shader = g_renderer->shader_create(RendererShader::ShaderType::kVertex, 0, 0, vertex_source, false, false);
m_fragment_shader = g_renderer->shader_create(RendererShader::ShaderType::kFragment, 0, 0, fragment_source, false, false);
m_fragment_shader = g_renderer->shader_create(RendererShader::ShaderType::kFragment, 0, 0, finalFragmentSrc, false, false);

m_vertex_shader->PreponeCompilation(true);
m_fragment_shader->PreponeCompilation(true);
Expand All @@ -163,74 +132,45 @@ RendererOutputShader::RendererOutputShader(const std::string& vertex_source, con

if (g_renderer->GetType() == RendererAPI::OpenGL)
{
m_attributes[0].m_loc_texture_src_resolution = m_vertex_shader->GetUniformLocation("textureSrcResolution");
m_attributes[0].m_loc_input_resolution = m_vertex_shader->GetUniformLocation("inputResolution");
m_attributes[0].m_loc_output_resolution = m_vertex_shader->GetUniformLocation("outputResolution");
m_uniformLocations[0].m_loc_textureSrcResolution = m_vertex_shader->GetUniformLocation("textureSrcResolution");
m_uniformLocations[0].m_loc_nativeResolution = m_vertex_shader->GetUniformLocation("nativeResolution");
m_uniformLocations[0].m_loc_outputResolution = m_vertex_shader->GetUniformLocation("outputResolution");

m_attributes[1].m_loc_texture_src_resolution = m_fragment_shader->GetUniformLocation("textureSrcResolution");
m_attributes[1].m_loc_input_resolution = m_fragment_shader->GetUniformLocation("inputResolution");
m_attributes[1].m_loc_output_resolution = m_fragment_shader->GetUniformLocation("outputResolution");
}
else
{
cemuLog_logDebug(LogType::Force, "RendererOutputShader() - todo for Vulkan");
m_attributes[0].m_loc_texture_src_resolution = -1;
m_attributes[0].m_loc_input_resolution = -1;
m_attributes[0].m_loc_output_resolution = -1;

m_attributes[1].m_loc_texture_src_resolution = -1;
m_attributes[1].m_loc_input_resolution = -1;
m_attributes[1].m_loc_output_resolution = -1;
m_uniformLocations[1].m_loc_textureSrcResolution = m_fragment_shader->GetUniformLocation("textureSrcResolution");
m_uniformLocations[1].m_loc_nativeResolution = m_fragment_shader->GetUniformLocation("nativeResolution");
m_uniformLocations[1].m_loc_outputResolution = m_fragment_shader->GetUniformLocation("outputResolution");
}

}

void RendererOutputShader::SetUniformParameters(const LatteTextureView& texture_view, const Vector2i& input_res, const Vector2i& output_res) const
void RendererOutputShader::SetUniformParameters(const LatteTextureView& texture_view, const Vector2i& output_res) const
{
float res[2];
// vertex shader
if (m_attributes[0].m_loc_texture_src_resolution != -1)
{
res[0] = (float)texture_view.baseTexture->width;
res[1] = (float)texture_view.baseTexture->height;
m_vertex_shader->SetUniform2fv(m_attributes[0].m_loc_texture_src_resolution, res, 1);
}

if (m_attributes[0].m_loc_input_resolution != -1)
{
res[0] = (float)input_res.x;
res[1] = (float)input_res.y;
m_vertex_shader->SetUniform2fv(m_attributes[0].m_loc_input_resolution, res, 1);
}

if (m_attributes[0].m_loc_output_resolution != -1)
{
res[0] = (float)output_res.x;
res[1] = (float)output_res.y;
m_vertex_shader->SetUniform2fv(m_attributes[0].m_loc_output_resolution, res, 1);
}

// fragment shader
if (m_attributes[1].m_loc_texture_src_resolution != -1)
{
res[0] = (float)texture_view.baseTexture->width;
res[1] = (float)texture_view.baseTexture->height;
m_fragment_shader->SetUniform2fv(m_attributes[1].m_loc_texture_src_resolution, res, 1);
}

if (m_attributes[1].m_loc_input_resolution != -1)
{
res[0] = (float)input_res.x;
res[1] = (float)input_res.y;
m_fragment_shader->SetUniform2fv(m_attributes[1].m_loc_input_resolution, res, 1);
}

if (m_attributes[1].m_loc_output_resolution != -1)
{
res[0] = (float)output_res.x;
res[1] = (float)output_res.y;
m_fragment_shader->SetUniform2fv(m_attributes[1].m_loc_output_resolution, res, 1);
}
sint32 effectiveWidth, effectiveHeight;
texture_view.baseTexture->GetEffectiveSize(effectiveWidth, effectiveHeight, 0);
auto setUniforms = [&](RendererShader* shader, const UniformLocations& locations){
float res[2];
if (locations.m_loc_textureSrcResolution != -1)
{
res[0] = (float)effectiveWidth;
res[1] = (float)effectiveHeight;
shader->SetUniform2fv(locations.m_loc_textureSrcResolution, res, 1);
}

if (locations.m_loc_nativeResolution != -1)
{
res[0] = (float)texture_view.baseTexture->width;
res[1] = (float)texture_view.baseTexture->height;
shader->SetUniform2fv(locations.m_loc_nativeResolution, res, 1);
}

if (locations.m_loc_outputResolution != -1)
{
res[0] = (float)output_res.x;
res[1] = (float)output_res.y;
shader->SetUniform2fv(locations.m_loc_outputResolution, res, 1);
}
};
setUniforms(m_vertex_shader, m_uniformLocations[0]);
setUniforms(m_fragment_shader, m_uniformLocations[1]);
}

RendererOutputShader* RendererOutputShader::s_copy_shader;
Expand Down Expand Up @@ -341,6 +281,27 @@ void main(){
)";
return vertex_source.str();
}

std::string RendererOutputShader::PrependFragmentPreamble(const std::string& shaderSrc)
{
return R"(#version 430
#ifdef VULKAN
layout(push_constant) uniform pc {
vec2 textureSrcResolution;
vec2 nativeResolution;
vec2 outputResolution;
};
#else
uniform vec2 textureSrcResolution;
uniform vec2 nativeResolution;
uniform vec2 outputResolution;
#endif

layout(location = 0) in vec2 passUV;
layout(binding = 0) uniform sampler2D textureSrc;
layout(location = 0) out vec4 colorOut0;
)" + shaderSrc;
}
void RendererOutputShader::InitializeStatic()
{
std::string vertex_source, vertex_source_ud;
Expand All @@ -349,28 +310,18 @@ void RendererOutputShader::InitializeStatic()
{
vertex_source = GetOpenGlVertexSource(false);
vertex_source_ud = GetOpenGlVertexSource(true);

s_copy_shader = new RendererOutputShader(vertex_source, s_copy_shader_source);
s_copy_shader_ud = new RendererOutputShader(vertex_source_ud, s_copy_shader_source);

s_bicubic_shader = new RendererOutputShader(vertex_source, s_bicubic_shader_source);
s_bicubic_shader_ud = new RendererOutputShader(vertex_source_ud, s_bicubic_shader_source);

s_hermit_shader = new RendererOutputShader(vertex_source, s_hermite_shader_source);
s_hermit_shader_ud = new RendererOutputShader(vertex_source_ud, s_hermite_shader_source);
}
else
{
vertex_source = GetVulkanVertexSource(false);
vertex_source_ud = GetVulkanVertexSource(true);
}
s_copy_shader = new RendererOutputShader(vertex_source, s_copy_shader_source);
s_copy_shader_ud = new RendererOutputShader(vertex_source_ud, s_copy_shader_source);

s_copy_shader = new RendererOutputShader(vertex_source, s_copy_shader_source);
s_copy_shader_ud = new RendererOutputShader(vertex_source_ud, s_copy_shader_source);

/* s_bicubic_shader = new RendererOutputShader(vertex_source, s_bicubic_shader_source); TODO
s_bicubic_shader_ud = new RendererOutputShader(vertex_source_ud, s_bicubic_shader_source);
s_bicubic_shader = new RendererOutputShader(vertex_source, s_bicubic_shader_source);
s_bicubic_shader_ud = new RendererOutputShader(vertex_source_ud, s_bicubic_shader_source);

s_hermit_shader = new RendererOutputShader(vertex_source, s_hermite_shader_source);
s_hermit_shader_ud = new RendererOutputShader(vertex_source_ud, s_hermite_shader_source);*/
}
s_hermit_shader = new RendererOutputShader(vertex_source, s_hermite_shader_source);
s_hermit_shader_ud = new RendererOutputShader(vertex_source_ud, s_hermite_shader_source);
}
14 changes: 8 additions & 6 deletions src/Cafe/HW/Latte/Renderer/RendererOuputShader.h
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Expand Up @@ -17,7 +17,7 @@ class RendererOutputShader
RendererOutputShader(const std::string& vertex_source, const std::string& fragment_source);
virtual ~RendererOutputShader() = default;

void SetUniformParameters(const LatteTextureView& texture_view, const Vector2i& input_res, const Vector2i& output_res) const;
void SetUniformParameters(const LatteTextureView& texture_view, const Vector2i& output_res) const;

RendererShader* GetVertexShader() const
{
Expand All @@ -43,16 +43,18 @@ class RendererOutputShader
static std::string GetVulkanVertexSource(bool render_upside_down);
static std::string GetOpenGlVertexSource(bool render_upside_down);

static std::string PrependFragmentPreamble(const std::string& shaderSrc);

protected:
RendererShader* m_vertex_shader;
RendererShader* m_fragment_shader;

struct
struct UniformLocations
{
sint32 m_loc_texture_src_resolution = -1;
sint32 m_loc_input_resolution = -1;
sint32 m_loc_output_resolution = -1;
} m_attributes[2]{};
sint32 m_loc_textureSrcResolution = -1;
sint32 m_loc_nativeResolution = -1;
sint32 m_loc_outputResolution = -1;
} m_uniformLocations[2]{};

private:
static const std::string s_copy_shader_source;
Expand Down
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