source/backends/opengl/device_backend.h

   1 #ifndef MSP_GL_DEVICE_BACKEND_H_
   2 #define MSP_GL_DEVICE_BACKEND_H_
   3
   4 #include <vector>
   5 #include <msp/core/noncopyable.h>
   6 #include <msp/graphics/glcontext.h>
   7
   8 namespace Msp {
   9 namespace GL {
  10
  11 class OpenGLBuffer;
  12 class OpenGLPipelineState;
  13 class OpenGLTexture;
  14
  15 struct OpenGLDeviceState
  16 {
  17         const OpenGLPipelineState *last_pipeline = 0;
  18         std::vector<int> bound_tex_targets;
  19         std::vector<char> bound_storage_textures;
  20         std::vector<char> bound_uniform_blocks;
  21         unsigned restart_index = 0;
  22         unsigned n_clip_distances = 0;
  23         const OpenGLBuffer *scratch_buffer = 0;
  24         const OpenGLTexture *scratch_texture = 0;
  25 };
  26
  27 class OpenGLDevice: public NonCopyable
  28 {
  29 protected:
  30         Graphics::GLContext context;
  31         OpenGLDeviceState state;
  32
  33         OpenGLDevice(Graphics::Window &, const Graphics::GLOptions &);
  34
  35         static Graphics::GLOptions create_default_options();
  36
  37         void fill_info();
  38
  39         Graphics::GLContext &get_context() { return context; }
  40
  41 public:
  42         OpenGLDeviceState &get_state() { return state; }
  43 };
  44
  45 using DeviceBackend = OpenGLDevice;
  46 using DeviceOptions = Graphics::GLOptions;
  47
  48 } // namespace GL
  49 } // namespace Msp
  50
  51 #endif