Cleanup: GLBackend: Move buf_free and tex_free to GLContext

This makes it easier to follow.

Also removes the GL related functions inside gpu_context.cc.

source/blender/gpu/intern/gpu_context.cc

@@ -126,58 +126,6 @@ GPUContext *GPU_context_active_get(void)
   return active_ctx;
 }
 
-GLuint GPU_vao_alloc(void)
-{
-  GLuint new_vao_id = 0;
-  glGenVertexArrays(1, &new_vao_id);
-  return new_vao_id;
-}
-
-GLuint GPU_fbo_alloc(void)
-{
-  GLuint new_fbo_id = 0;
-  glGenFramebuffers(1, &new_fbo_id);
-  return new_fbo_id;
-}
-
-GLuint GPU_buf_alloc(void)
-{
-  GLuint new_buffer_id = 0;
-  glGenBuffers(1, &new_buffer_id);
-  return new_buffer_id;
-}
-
-GLuint GPU_tex_alloc(void)
-{
-  GLuint new_texture_id = 0;
-  glGenTextures(1, &new_texture_id);
-  return new_texture_id;
-}
-
-void GPU_vao_free(GLuint vao_id, GPUContext *ctx)
-{
-  static_cast<GLContext *>(ctx)->vao_free(vao_id);
-}
-
-void GPU_fbo_free(GLuint fbo_id, GPUContext *ctx)
-{
-  static_cast<GLContext *>(ctx)->fbo_free(fbo_id);
-}
-
-void GPU_buf_free(GLuint buf_id)
-{
-  /* TODO avoid using backend */
-  GPUBackend *backend = GPUBackend::get();
-  static_cast<GLBackend *>(backend)->buf_free(buf_id);
-}
-
-void GPU_tex_free(GLuint tex_id)
-{
-  /* TODO avoid using backend */
-  GPUBackend *backend = GPUBackend::get();
-  static_cast<GLBackend *>(backend)->tex_free(tex_id);
-}
-
 struct GPUMatrixState *gpu_context_active_matrix_state_get()
 {
   BLI_assert(active_ctx);

source/blender/gpu/intern/gpu_context_private.hh

@@ -83,19 +83,6 @@ struct GPUContext {
   MEM_CXX_CLASS_ALLOC_FUNCS("GPUContext")
 };
 
-/* These require a OpenGL ctx bound. */
-GLuint GPU_buf_alloc(void);
-GLuint GPU_tex_alloc(void);
-GLuint GPU_vao_alloc(void);
-GLuint GPU_fbo_alloc(void);
-
-/* These can be called any threads even without OpenGL ctx. */
-void GPU_buf_free(GLuint buf_id);
-void GPU_tex_free(GLuint tex_id);
-/* These two need the ctx the id was created with. */
-void GPU_vao_free(GLuint vao_id, GPUContext *ctx);
-void GPU_fbo_free(GLuint fbo_id, GPUContext *ctx);
-
 void gpu_context_active_framebuffer_set(GPUContext *ctx, struct GPUFrameBuffer *fb);
 struct GPUFrameBuffer *gpu_context_active_framebuffer_get(GPUContext *ctx);
 

source/blender/gpu/opengl/gl_backend.hh

@@ -115,15 +115,10 @@ class GLBackend : public GPUBackend {
     return new GLVertBuf();
   };
 
-  /* TODO remove */
-  void buf_free(GLuint buf_id);
-  void tex_free(GLuint tex_id);
-  void orphans_add(Vector<GLuint> &orphan_list, std::mutex &list_mutex, unsigned int id)
+  GLSharedOrphanLists &shared_orphan_list_get(void)
   {
-    list_mutex.lock();
-    orphan_list.append(id);
-    list_mutex.unlock();
-  }
+    return shared_orphan_list_;
+  };
 
  private:
   static void platform_init(void);

source/blender/gpu/opengl/gl_context.cc

@@ -230,25 +230,27 @@ void GLContext::fbo_free(GLuint fbo_id)
   }
 }
 
-void GLBackend::buf_free(GLuint buf_id)
+void GLContext::buf_free(GLuint buf_id)
 {
   /* Any context can free. */
   if (GPU_context_active_get()) {
     glDeleteBuffers(1, &buf_id);
   }
   else {
-    orphans_add(shared_orphan_list_.buffers, shared_orphan_list_.lists_mutex, buf_id);
+    GLSharedOrphanLists &orphan_list = GLBackend::get()->shared_orphan_list_get();
+    orphans_add(orphan_list.buffers, orphan_list.lists_mutex, buf_id);
   }
 }
 
-void GLBackend::tex_free(GLuint tex_id)
+void GLContext::tex_free(GLuint tex_id)
 {
   /* Any context can free. */
   if (GPU_context_active_get()) {
     glDeleteTextures(1, &tex_id);
   }
   else {
-    orphans_add(shared_orphan_list_.textures, shared_orphan_list_.lists_mutex, tex_id);
+    GLSharedOrphanLists &orphan_list = GLBackend::get()->shared_orphan_list_get();
+    orphans_add(orphan_list.textures, orphan_list.lists_mutex, tex_id);
   }
 }
 

source/blender/gpu/opengl/gl_context.hh

@@ -105,13 +105,17 @@ class GLContext : public GPUContext {
     return static_cast<GLStateManager *>(ctx->state_manager);
   };
 
-  /* TODO(fclem) these needs to become private. */
- public:
-  void orphans_add(Vector<GLuint> &orphan_list, std::mutex &list_mutex, GLuint id);
-  void orphans_clear(void);
-
+  /* These need to be called with the context the id was created with. */
   void vao_free(GLuint vao_id);
   void fbo_free(GLuint fbo_id);
+  /* These can be called by any threads even without OpenGL ctx. Deletion will be delayed. */
+  static void buf_free(GLuint buf_id);
+  static void tex_free(GLuint tex_id);
+
+  /* TODO(fclem) these needs to become private. */
+ public:
+  static void orphans_add(Vector<GLuint> &orphan_list, std::mutex &list_mutex, GLuint id);
+  void orphans_clear(void);
   void vao_cache_register(GLVaoCache *cache);
   void vao_cache_unregister(GLVaoCache *cache);
 };

source/blender/gpu/opengl/gl_drawlist.cc

@@ -88,10 +88,7 @@ GLDrawList::GLDrawList(int length)
 
 GLDrawList::~GLDrawList()
 {
-  /* TODO This ... */
-  static_cast<GLBackend *>(GPUBackend::get())->buf_free(buffer_id_);
-  /* ... should be this. */
-  // context_->buf_free(buffer_id_)
+  GLContext::buf_free(buffer_id_);
 }
 
 void GLDrawList::init(void)

source/blender/gpu/opengl/gl_index_buffer.cc

@@ -21,7 +21,7 @@
  * \ingroup gpu
  */
 
-#include "gl_backend.hh"
+#include "gl_context.hh"
 #include "gl_debug.hh"
 
 #include "gl_index_buffer.hh"
@@ -30,7 +30,7 @@ namespace blender::gpu {
 
 GLIndexBuf::~GLIndexBuf()
 {
-  GLBackend::get()->buf_free(ibo_id_);
+  GLContext::buf_free(ibo_id_);
 }
 
 void GLIndexBuf::bind(void)

source/blender/gpu/opengl/gl_texture.cc

@@ -59,7 +59,7 @@ GLTexture::~GLTexture()
     /* This avoid errors when the texture is still inside the bound texture array. */
     ctx->state_manager->texture_unbind(this);
   }
-  GLBackend::get()->tex_free(tex_id_);
+  GLContext::tex_free(tex_id_);
 }
 
 /* Return true on success. */

source/blender/gpu/opengl/gl_uniform_buffer.cc

@@ -45,7 +45,7 @@ GLUniformBuf::GLUniformBuf(size_t size, const char *name) : UniformBuf(size, nam
 
 GLUniformBuf::~GLUniformBuf()
 {
-  GLBackend::get()->buf_free(ubo_id_);
+  GLContext::buf_free(ubo_id_);
 }
 
 /** \} */

source/blender/gpu/opengl/gl_vertex_buffer.cc

@@ -21,7 +21,7 @@
  * \ingroup gpu
  */
 
-#include "gl_backend.hh"
+#include "gl_context.hh"
 
 #include "gl_vertex_buffer.hh"
 
@@ -42,7 +42,7 @@ void GLVertBuf::resize_data(void)
 void GLVertBuf::release_data(void)
 {
   if (vbo_id_ != 0) {
-    GLBackend::get()->buf_free(vbo_id_);
+    GLContext::buf_free(vbo_id_);
     vbo_id_ = 0;
     memory_usage -= vbo_size_;
   }