Textures and such.

src/xenia/gpu/gl4/texture_cache.h

@@ -0,0 +1,65 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2014 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_GPU_GL4_TEXTURE_CACHE_H_
+#define XENIA_GPU_GL4_TEXTURE_CACHE_H_
+
+#include <vector>
+
+#include <xenia/gpu/gl4/circular_buffer.h>
+#include <xenia/gpu/gl4/gl_context.h>
+#include <xenia/gpu/sampler_info.h>
+#include <xenia/gpu/texture_info.h>
+
+namespace xe {
+namespace gpu {
+namespace gl4 {
+
+class TextureCache {
+ public:
+  struct EntryView {
+    SamplerInfo sampler_info;
+    GLuint sampler;
+    GLuint64 texture_sampler_handle;
+  };
+  struct Entry {
+    TextureInfo texture_info;
+    GLuint base_texture;
+    std::vector<EntryView> views;
+  };
+
+  TextureCache();
+  ~TextureCache();
+
+  bool Initialize(CircularBuffer* scratch_buffer);
+  void Shutdown();
+  void Clear();
+
+  EntryView* Demand(void* host_base, size_t length,
+                    const TextureInfo& texture_info,
+                    const SamplerInfo& sampler_info);
+
+ private:
+  bool SetupTexture(GLuint texture, const TextureInfo& texture_info);
+  bool SetupSampler(GLuint sampler, const TextureInfo& texture_info,
+                    const SamplerInfo& sampler_info);
+
+  bool UploadTexture2D(GLuint texture, void* host_base, size_t length,
+                       const TextureInfo& texture_info,
+                       const SamplerInfo& sampler_info);
+
+  CircularBuffer* scratch_buffer_;
+  std::vector<Entry> entries_;
+};
+
+}  // namespace gl4
+}  // namespace gpu
+}  // namespace xe
+
+#endif  // XENIA_GPU_GL4_TEXTURE_CACHE_H_