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Diffstat (limited to '')
-rw-r--r-- | src/video_core/renderer_opengl/gl_framebuffer_cache.cpp | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/video_core/renderer_opengl/gl_framebuffer_cache.cpp b/src/video_core/renderer_opengl/gl_framebuffer_cache.cpp new file mode 100644 index 000000000..7c926bd48 --- /dev/null +++ b/src/video_core/renderer_opengl/gl_framebuffer_cache.cpp @@ -0,0 +1,75 @@ +// Copyright 2019 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <tuple> + +#include "common/cityhash.h" +#include "common/scope_exit.h" +#include "video_core/engines/maxwell_3d.h" +#include "video_core/renderer_opengl/gl_framebuffer_cache.h" +#include "video_core/renderer_opengl/gl_state.h" + +namespace OpenGL { + +using Maxwell = Tegra::Engines::Maxwell3D::Regs; + +FramebufferCacheOpenGL::FramebufferCacheOpenGL() = default; + +FramebufferCacheOpenGL::~FramebufferCacheOpenGL() = default; + +GLuint FramebufferCacheOpenGL::GetFramebuffer(const FramebufferCacheKey& key) { + const auto [entry, is_cache_miss] = cache.try_emplace(key); + auto& framebuffer{entry->second}; + if (is_cache_miss) { + framebuffer = CreateFramebuffer(key); + } + return framebuffer.handle; +} + +OGLFramebuffer FramebufferCacheOpenGL::CreateFramebuffer(const FramebufferCacheKey& key) { + OGLFramebuffer framebuffer; + framebuffer.Create(); + + // TODO(Rodrigo): Use DSA here after Nvidia fixes their framebuffer DSA bugs. + local_state.draw.draw_framebuffer = framebuffer.handle; + local_state.ApplyFramebufferState(); + + if (key.is_single_buffer) { + if (key.color_attachments[0] != GL_NONE && key.colors[0]) { + key.colors[0]->Attach(key.color_attachments[0], GL_DRAW_FRAMEBUFFER); + glDrawBuffer(key.color_attachments[0]); + } else { + glDrawBuffer(GL_NONE); + } + } else { + for (std::size_t index = 0; index < Maxwell::NumRenderTargets; ++index) { + if (key.colors[index]) { + key.colors[index]->Attach(GL_COLOR_ATTACHMENT0 + static_cast<GLenum>(index), + GL_DRAW_FRAMEBUFFER); + } + } + glDrawBuffers(key.colors_count, key.color_attachments.data()); + } + + if (key.zeta) { + key.zeta->Attach(key.stencil_enable ? GL_DEPTH_STENCIL_ATTACHMENT : GL_DEPTH_ATTACHMENT, + GL_DRAW_FRAMEBUFFER); + } + + return framebuffer; +} + +std::size_t FramebufferCacheKey::Hash() const { + static_assert(sizeof(*this) % sizeof(u64) == 0, "Unaligned struct"); + return static_cast<std::size_t>( + Common::CityHash64(reinterpret_cast<const char*>(this), sizeof(*this))); +} + +bool FramebufferCacheKey::operator==(const FramebufferCacheKey& rhs) const { + return std::tie(is_single_buffer, stencil_enable, colors_count, color_attachments, colors, + zeta) == std::tie(rhs.is_single_buffer, rhs.stencil_enable, rhs.colors_count, + rhs.color_attachments, rhs.colors, rhs.zeta); +} + +} // namespace OpenGL |