dolphin/Source/Core/VideoBackends/OGL/Render.h

182 lines
6.3 KiB
C++

// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <string>
#include "Common/GL/GLContext.h"
#include "Common/GL/GLExtensions/GLExtensions.h"
#include "VideoCommon/RenderBase.h"
namespace OGL
{
class OGLFramebuffer;
class OGLPipeline;
class OGLTexture;
enum GlslVersion
{
Glsl130,
Glsl140,
Glsl150,
Glsl330,
Glsl400, // and above
Glsl430,
GlslEs300, // GLES 3.0
GlslEs310, // GLES 3.1
GlslEs320, // GLES 3.2
};
enum class EsTexbufType
{
TexbufNone,
TexbufCore,
TexbufOes,
TexbufExt
};
enum class EsFbFetchType
{
FbFetchNone,
FbFetchExt,
FbFetchArm,
};
// ogl-only config, so not in VideoConfig.h
struct VideoConfig
{
bool bIsES;
bool bSupportsGLPinnedMemory;
bool bSupportsGLSync;
bool bSupportsGLBaseVertex;
bool bSupportsGLBufferStorage;
bool bSupportsMSAA;
GlslVersion eSupportedGLSLVersion;
bool bSupportViewportFloat;
bool bSupportsAEP;
bool bSupportsDebug;
bool bSupportsCopySubImage;
u8 SupportedESPointSize;
EsTexbufType SupportedESTextureBuffer;
bool bSupportsTextureStorage;
bool bSupports2DTextureStorageMultisample;
bool bSupports3DTextureStorageMultisample;
bool bSupportsConservativeDepth;
bool bSupportsImageLoadStore;
bool bSupportsAniso;
bool bSupportsBitfield;
bool bSupportsTextureSubImage;
EsFbFetchType SupportedFramebufferFetch;
bool bSupportsShaderThreadShuffleNV;
const char* gl_vendor;
const char* gl_renderer;
const char* gl_version;
s32 max_samples;
};
extern VideoConfig g_ogl_config;
class Renderer : public ::Renderer
{
public:
Renderer(std::unique_ptr<GLContext> main_gl_context, float backbuffer_scale);
~Renderer() override;
static Renderer* GetInstance() { return static_cast<Renderer*>(g_renderer.get()); }
bool IsHeadless() const override;
bool Initialize() override;
void Shutdown() override;
std::unique_ptr<AbstractTexture> CreateTexture(const TextureConfig& config) override;
std::unique_ptr<AbstractStagingTexture>
CreateStagingTexture(StagingTextureType type, const TextureConfig& config) override;
std::unique_ptr<AbstractShader> CreateShaderFromSource(ShaderStage stage, const char* source,
size_t length) override;
std::unique_ptr<AbstractShader> CreateShaderFromBinary(ShaderStage stage, const void* data,
size_t length) override;
std::unique_ptr<NativeVertexFormat>
CreateNativeVertexFormat(const PortableVertexDeclaration& vtx_decl) override;
std::unique_ptr<AbstractPipeline> CreatePipeline(const AbstractPipelineConfig& config,
const void* cache_data = nullptr,
size_t cache_data_length = 0) override;
std::unique_ptr<AbstractFramebuffer>
CreateFramebuffer(AbstractTexture* color_attachment, AbstractTexture* depth_attachment) override;
void SetPipeline(const AbstractPipeline* pipeline) override;
void SetFramebuffer(AbstractFramebuffer* framebuffer) override;
void SetAndDiscardFramebuffer(AbstractFramebuffer* framebuffer) override;
void SetAndClearFramebuffer(AbstractFramebuffer* framebuffer, const ClearColor& color_value = {},
float depth_value = 0.0f) override;
void SetScissorRect(const MathUtil::Rectangle<int>& rc) override;
void SetTexture(u32 index, const AbstractTexture* texture) override;
void SetSamplerState(u32 index, const SamplerState& state) override;
void SetComputeImageTexture(AbstractTexture* texture, bool read, bool write) override;
void UnbindTexture(const AbstractTexture* texture) override;
void SetViewport(float x, float y, float width, float height, float near_depth,
float far_depth) override;
void Draw(u32 base_vertex, u32 num_vertices) override;
void DrawIndexed(u32 base_index, u32 num_indices, u32 base_vertex) override;
void DispatchComputeShader(const AbstractShader* shader, u32 groups_x, u32 groups_y,
u32 groups_z) override;
void BindBackbuffer(const ClearColor& clear_color = {}) override;
void PresentBackbuffer() override;
u16 BBoxRead(int index) override;
void BBoxWrite(int index, u16 value) override;
void BeginUtilityDrawing() override;
void EndUtilityDrawing() override;
void Flush() override;
void WaitForGPUIdle() override;
void RenderXFBToScreen(const AbstractTexture* texture,
const MathUtil::Rectangle<int>& rc) override;
void OnConfigChanged(u32 bits) override;
void ClearScreen(const MathUtil::Rectangle<int>& rc, bool colorEnable, bool alphaEnable,
bool zEnable, u32 color, u32 z) override;
std::unique_ptr<VideoCommon::AsyncShaderCompiler> CreateAsyncShaderCompiler() override;
// Only call methods from this on the GPU thread.
GLContext* GetMainGLContext() const { return m_main_gl_context.get(); }
bool IsGLES() const { return m_main_gl_context->IsGLES(); }
// Invalidates a cached texture binding. Required for texel buffers when they borrow the units.
void InvalidateTextureBinding(u32 index) { m_bound_textures[index] = nullptr; }
// The shared framebuffer exists for copying textures when extensions are not available. It is
// slower, but the only way to do these things otherwise.
GLuint GetSharedReadFramebuffer() const { return m_shared_read_framebuffer; }
GLuint GetSharedDrawFramebuffer() const { return m_shared_draw_framebuffer; }
void BindSharedReadFramebuffer();
void BindSharedDrawFramebuffer();
// Restores FBO binding after it's been changed.
void RestoreFramebufferBinding();
private:
void CheckForSurfaceChange();
void CheckForSurfaceResize();
void ApplyRasterizationState(const RasterizationState state);
void ApplyDepthState(const DepthState state);
void ApplyBlendingState(const BlendingState state);
std::unique_ptr<GLContext> m_main_gl_context;
std::unique_ptr<OGLFramebuffer> m_system_framebuffer;
std::array<const OGLTexture*, 8> m_bound_textures{};
AbstractTexture* m_bound_image_texture = nullptr;
RasterizationState m_current_rasterization_state;
DepthState m_current_depth_state;
BlendingState m_current_blend_state;
GLuint m_shared_read_framebuffer = 0;
GLuint m_shared_draw_framebuffer = 0;
};
} // namespace OGL