1 files changed, 52 insertions, 0 deletions
diff --git a/src/video_core/renderer_opengl/gl_sampler_cache.cpp b/src/video_core/renderer_opengl/gl_sampler_cache.cpp
new file mode 100644
index 000000000..3ded5ecea
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_sampler_cache.cpp
@@ -0,0 +1,52 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "video_core/renderer_opengl/gl_resource_manager.h"
+#include "video_core/renderer_opengl/gl_sampler_cache.h"
+#include "video_core/renderer_opengl/maxwell_to_gl.h"
+
+namespace OpenGL {
+
+SamplerCacheOpenGL::SamplerCacheOpenGL() = default;
+
+SamplerCacheOpenGL::~SamplerCacheOpenGL() = default;
+
+OGLSampler SamplerCacheOpenGL::CreateSampler(const Tegra::Texture::TSCEntry& tsc) const {
+    OGLSampler sampler;
+    sampler.Create();
+
+    const GLuint sampler_id{sampler.handle};
+    glSamplerParameteri(
+        sampler_id, GL_TEXTURE_MAG_FILTER,
+        MaxwellToGL::TextureFilterMode(tsc.mag_filter, Tegra::Texture::TextureMipmapFilter::None));
+    glSamplerParameteri(sampler_id, GL_TEXTURE_MIN_FILTER,
+                        MaxwellToGL::TextureFilterMode(tsc.min_filter, tsc.mipmap_filter));
+    glSamplerParameteri(sampler_id, GL_TEXTURE_WRAP_S, MaxwellToGL::WrapMode(tsc.wrap_u));
+    glSamplerParameteri(sampler_id, GL_TEXTURE_WRAP_T, MaxwellToGL::WrapMode(tsc.wrap_v));
+    glSamplerParameteri(sampler_id, GL_TEXTURE_WRAP_R, MaxwellToGL::WrapMode(tsc.wrap_p));
+    glSamplerParameteri(sampler_id, GL_TEXTURE_COMPARE_MODE,
+                        tsc.depth_compare_enabled == 1 ? GL_COMPARE_REF_TO_TEXTURE : GL_NONE);
+    glSamplerParameteri(sampler_id, GL_TEXTURE_COMPARE_FUNC,
+                        MaxwellToGL::DepthCompareFunc(tsc.depth_compare_func));
+    glSamplerParameterfv(sampler_id, GL_TEXTURE_BORDER_COLOR, tsc.GetBorderColor().data());
+    glSamplerParameterf(sampler_id, GL_TEXTURE_MIN_LOD, tsc.GetMinLod());
+    glSamplerParameterf(sampler_id, GL_TEXTURE_MAX_LOD, tsc.GetMaxLod());
+    glSamplerParameterf(sampler_id, GL_TEXTURE_LOD_BIAS, tsc.GetLodBias());
+    if (GLAD_GL_ARB_texture_filter_anisotropic) {
+        glSamplerParameterf(sampler_id, GL_TEXTURE_MAX_ANISOTROPY, tsc.GetMaxAnisotropy());
+    } else if (GLAD_GL_EXT_texture_filter_anisotropic) {
+        glSamplerParameterf(sampler_id, GL_TEXTURE_MAX_ANISOTROPY_EXT, tsc.GetMaxAnisotropy());
+    } else if (tsc.GetMaxAnisotropy() != 1) {
+        LOG_WARNING(Render_OpenGL, "Anisotropy not supported by host GPU driver");
+    }
+
+    return sampler;
+}
+
+GLuint SamplerCacheOpenGL::ToSamplerType(const OGLSampler& sampler) const {
+    return sampler.handle;
+}
+
+} // namespace OpenGL