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Vulkan: Make scaling shaders compatible + fixes (cemu-project#1392)
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@goeiecool9999
goeiecool9999 authored Nov 16, 2024
1 parent 6f9f3d5 commit 269d5b9
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Showing 7 changed files with 136 additions and 150 deletions.
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;
}
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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)
{
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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;

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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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Original file line number Diff line number Diff line change
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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