1 files changed, 69 insertions, 1 deletions
diff --git a/src/video_core/renderer_opengl/gl_texture_cache.cpp b/src/video_core/renderer_opengl/gl_texture_cache.cpp
index c6990ad21..a58e3a816 100644
--- a/src/video_core/renderer_opengl/gl_texture_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_texture_cache.cpp
@@ -9,6 +9,7 @@
 #include "core/core.h"
 #include "video_core/morton.h"
 #include "video_core/renderer_opengl/gl_resource_manager.h"
+#include "video_core/renderer_opengl/gl_state.h"
 #include "video_core/renderer_opengl/gl_texture_cache.h"
 #include "video_core/renderer_opengl/utils.h"
 #include "video_core/texture_cache/texture_cache.h"
@@ -23,6 +24,7 @@ using VideoCore::MortonSwizzleMode;
 using VideoCore::Surface::ComponentType;
 using VideoCore::Surface::PixelFormat;
 using VideoCore::Surface::SurfaceTarget;
+using VideoCore::Surface::SurfaceType;
 
 MICROPROFILE_DEFINE(OpenGL_Texture_Upload, "OpenGL", "Texture Upload", MP_RGB(128, 192, 128));
 MICROPROFILE_DEFINE(OpenGL_Texture_Download, "OpenGL", "Texture Download", MP_RGB(128, 192, 128));
@@ -422,7 +424,10 @@ OGLTextureView CachedSurfaceView::CreateTextureView() const {
 
 TextureCacheOpenGL::TextureCacheOpenGL(Core::System& system,
                                        VideoCore::RasterizerInterface& rasterizer)
-    : TextureCacheBase{system, rasterizer} {}
+    : TextureCacheBase{system, rasterizer} {
+    src_framebuffer.Create();
+    dst_framebuffer.Create();
+}
 
 TextureCacheOpenGL::~TextureCacheOpenGL() = default;
 
@@ -443,4 +448,67 @@ void TextureCacheOpenGL::ImageCopy(Surface src_surface, Surface dst_surface,
                        copy_params.depth);
 }
 
+void TextureCacheOpenGL::ImageBlit(Surface src_surface, Surface dst_surface,
+                                   const Common::Rectangle<u32>& src_rect,
+                                   const Common::Rectangle<u32>& dst_rect) {
+    const auto& src_params{src_surface->GetSurfaceParams()};
+    const auto& dst_params{dst_surface->GetSurfaceParams()};
+
+    OpenGLState prev_state{OpenGLState::GetCurState()};
+    SCOPE_EXIT({ prev_state.Apply(); });
+
+    OpenGLState state;
+    state.draw.read_framebuffer = src_framebuffer.handle;
+    state.draw.draw_framebuffer = dst_framebuffer.handle;
+    state.ApplyFramebufferState();
+
+    u32 buffers{};
+
+    UNIMPLEMENTED_IF(src_params.target != SurfaceTarget::Texture2D);
+    UNIMPLEMENTED_IF(dst_params.target != SurfaceTarget::Texture2D);
+
+    const GLuint src_texture{src_surface->GetTexture()};
+    const GLuint dst_texture{dst_surface->GetTexture()};
+
+    if (src_params.type == SurfaceType::ColorTexture) {
+        glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
+                               src_texture, 0);
+        glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0,
+                               0);
+
+        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
+                               dst_texture, 0);
+        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0,
+                               0);
+
+        buffers = GL_COLOR_BUFFER_BIT;
+    } else if (src_params.type == SurfaceType::Depth) {
+        glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
+        glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, src_texture,
+                               0);
+        glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
+
+        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
+        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, dst_texture,
+                               0);
+        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
+
+        buffers = GL_DEPTH_BUFFER_BIT;
+    } else if (src_params.type == SurfaceType::DepthStencil) {
+        glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
+        glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D,
+                               src_texture, 0);
+
+        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
+        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D,
+                               dst_texture, 0);
+
+        buffers = GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT;
+    }
+
+    glBlitFramebuffer(src_rect.left, src_rect.top, src_rect.right, src_rect.bottom, dst_rect.left,
+                      dst_rect.top, dst_rect.right, dst_rect.bottom, buffers,
+                      buffers == GL_COLOR_BUFFER_BIT ? GL_LINEAR : GL_NEAREST);
+}
+
 } // namespace OpenGL