kaliber/src/engine/renderer/renderer.h

117 lines
3.5 KiB
C++

#ifndef ENGINE_RENDERER_RENDERER_H
#define ENGINE_RENDERER_RENDERER_H
#include <memory>
#include <string>
#include "base/closure.h"
#include "base/vecmath.h"
#include "engine/renderer/renderer_types.h"
namespace eng {
class Image;
class ShaderSource;
class Mesh;
class Platform;
class Renderer {
public:
const unsigned kInvalidId = 0;
Renderer(base::Closure context_lost_cb)
: context_lost_cb_{std::move(context_lost_cb)} {}
virtual ~Renderer() = default;
virtual bool Initialize(Platform* platform) = 0;
virtual void Shutdown() = 0;
virtual bool IsInitialzed() const = 0;
virtual uint64_t CreateGeometry(std::unique_ptr<Mesh> mesh) = 0;
virtual void DestroyGeometry(uint64_t resource_id) = 0;
virtual void Draw(uint64_t resource_id) = 0;
virtual uint64_t CreateTexture() = 0;
virtual void UpdateTexture(uint64_t resource_id,
std::unique_ptr<Image> image) = 0;
virtual void DestroyTexture(uint64_t resource_id) = 0;
virtual void ActivateTexture(uint64_t resource_id) = 0;
virtual uint64_t CreateShader(std::unique_ptr<ShaderSource> source,
const VertexDescripton& vertex_description,
Primitive primitive,
bool enable_depth_test) = 0;
virtual void DestroyShader(uint64_t resource_id) = 0;
virtual void ActivateShader(uint64_t resource_id) = 0;
virtual void SetUniform(uint64_t resource_id,
const std::string& name,
const base::Vector2f& val) = 0;
virtual void SetUniform(uint64_t resource_id,
const std::string& name,
const base::Vector3f& val) = 0;
virtual void SetUniform(uint64_t resource_id,
const std::string& name,
const base::Vector4f& val) = 0;
virtual void SetUniform(uint64_t resource_id,
const std::string& name,
const base::Matrix4f& val) = 0;
virtual void SetUniform(uint64_t resource_id,
const std::string& name,
float val) = 0;
virtual void SetUniform(uint64_t resource_id,
const std::string& name,
int val) = 0;
virtual void UploadUniforms(uint64_t resource_id) = 0;
virtual void PrepareForDrawing() = 0;
virtual void Present() = 0;
bool SupportsETC1() const { return texture_compression_.etc1; }
bool SupportsDXT1() const {
return texture_compression_.dxt1 || texture_compression_.s3tc;
}
bool SupportsDXT5() const { return texture_compression_.s3tc; }
bool SupportsATC() const { return texture_compression_.atc; }
int screen_width() const { return screen_width_; }
int screen_height() const { return screen_height_; }
virtual size_t GetAndResetFPS() = 0;
virtual const char* GetDebugName() = 0;
protected:
struct TextureCompression {
unsigned etc1 : 1;
unsigned dxt1 : 1;
unsigned latc : 1;
unsigned s3tc : 1;
unsigned pvrtc : 1;
unsigned atc : 1;
TextureCompression()
: etc1(false),
dxt1(false),
latc(false),
s3tc(false),
pvrtc(false),
atc(false) {}
};
TextureCompression texture_compression_;
int screen_width_ = 0;
int screen_height_ = 0;
base::Closure context_lost_cb_;
Renderer(const Renderer&) = delete;
Renderer& operator=(const Renderer&) = delete;
};
} // namespace eng
#endif // ENGINE_RENDERER_RENDERER_H