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gl: Implement emulated Z comparison support

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This commit is contained in:
kd-11 2026-05-10 20:17:21 +03:00
parent 0df9096e90
commit c7ff1e726c
7 changed files with 44 additions and 6 deletions
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9
rpcs3/Emu/RSX/GL/GLDraw.cpp
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@ -543,6 +543,15 @@ void GLGSRender::bind_texture_env()
cmd->bind_texture(GL_VERTEX_TEXTURES_START + i, GL_TEXTURE_2D, GL_NONE);
}
}
if (current_fragment_program.ctrl & RSX_SHADER_CONTROL_EMULATE_DEPTH_COMPARE)
{
ensure(m_rtts.m_bound_depth_stencil.first, "Invalid FBO setup");
gl::insert_texture_barrier();
auto view = m_rtts.m_bound_depth_stencil.second->get_view(rsx::default_remap_vector, gl::image_aspect::depth);
view->bind(cmd, GL_TEMP_IMAGE_SLOT(0));
}
}
void GLGSRender::bind_interpreter_texture_env()

6
rpcs3/Emu/RSX/GL/GLFragmentProgram.cpp
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@ -167,6 +167,11 @@ void GLFragmentDecompilerThread::insertConstants(std::stringstream & OS)
}
}
if (m_prog.ctrl & RSX_SHADER_CONTROL_EMULATE_DEPTH_COMPARE)
{
OS << "uniform sampler2D frag_depth;\n";
}
OS << "\n";
if (!properties.constant_offsets.empty())
@ -238,6 +243,7 @@ void GLFragmentDecompilerThread::insertGlobalFunctions(std::stringstream &OS)
m_shader_props.require_shadowProj_ops = properties.shadow_sampler_mask != 0 && properties.has_texShadowProj;
m_shader_props.require_alpha_kill = !!(m_prog.ctrl & RSX_SHADER_CONTROL_TEXTURE_ALPHA_KILL);
m_shader_props.require_color_format_convert = !!(m_prog.ctrl & RSX_SHADER_CONTROL_TEXTURE_FORMAT_CONVERT);
m_shader_props.emulate_depth_compare = !!(m_prog.ctrl & RSX_SHADER_CONTROL_EMULATE_DEPTH_COMPARE);
glsl::insert_glsl_legacy_function(OS, m_shader_props);
}

7
rpcs3/Emu/RSX/GL/GLProgramBuffer.h
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@ -101,6 +101,13 @@ struct GLTraits
// Bind locations 0 and 1 to the stream buffers
program->uniforms[0] = GL_STREAM_BUFFER_START + 0;
program->uniforms[1] = GL_STREAM_BUFFER_START + 1;
// Optional inputs
int location = 0;
if (program->uniforms.has_location("frag_depth", &location))
{
program->uniforms[location] = GL_TEMP_IMAGE_SLOT(0);
}
};
auto pipeline = compiler->compile(flags, post_create_func, post_link_func, callback);

8
rpcs3/Emu/RSX/GL/GLTextureCache.h
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@ -2,6 +2,7 @@
#include "Emu/RSX/GL/GLTexture.h"
#include "GLRenderTargets.h"
#include "glutils/barriers.h"
#include "glutils/blitter.h"
#include "glutils/sync.hpp"
@ -804,12 +805,7 @@ namespace gl
void insert_texture_barrier(gl::command_context&, gl::texture*, bool) override
{
auto &caps = gl::get_driver_caps();
if (caps.ARB_texture_barrier_supported)
glTextureBarrier();
else if (caps.NV_texture_barrier_supported)
glTextureBarrierNV();
gl::insert_texture_barrier();
}
bool render_target_format_is_compatible(gl::texture* tex, u32 gcm_format) override

16
rpcs3/Emu/RSX/GL/glutils/barriers.h Normal file
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@ -0,0 +1,16 @@
#pragma once
#include "common.h"
namespace gl
{
static inline void insert_texture_barrier()
{
auto& caps = gl::get_driver_caps();
if (caps.ARB_texture_barrier_supported)
glTextureBarrier();
else if (caps.NV_texture_barrier_supported)
glTextureBarrierNV();
}
}

1
rpcs3/GLGSRender.vcxproj
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@ -61,6 +61,7 @@
<ClInclude Include="Emu\RSX\GL\GLProcTable.h" />
<ClInclude Include="Emu\RSX\GL\GLProgramBuffer.h" />
<ClInclude Include="Emu\RSX\GL\GLResolveHelper.h" />
<ClInclude Include="Emu\RSX\GL\glutils\barriers.h" />
<ClInclude Include="Emu\RSX\GL\glutils\blitter.h" />
<ClInclude Include="Emu\RSX\GL\glutils\buffer_object.h" />
<ClInclude Include="Emu\RSX\GL\glutils\capabilities.h" />

3
rpcs3/GLGSRender.vcxproj.filters
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@ -122,6 +122,9 @@
</ClInclude>
<ClInclude Include="Emu\RSX\GL\GLDMA.h" />
<ClInclude Include="Emu\RSX\GL\GLResolveHelper.h" />
<ClInclude Include="Emu\RSX\GL\glutils\barriers.h">
<Filter>glutils</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<Filter Include="glutils">