michael@0: //
michael@0: // Copyright (c) 2012-2013 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // Renderer.h: Defines a back-end specific class that hides the details of the
michael@0: // implementation-specific renderer.
michael@0: 
michael@0: #ifndef LIBGLESV2_RENDERER_RENDERER_H_
michael@0: #define LIBGLESV2_RENDERER_RENDERER_H_
michael@0: 
michael@0: #include "libGLESv2/Uniform.h"
michael@0: #include "libGLESv2/angletypes.h"
michael@0: 
michael@0: #if !defined(ANGLE_COMPILE_OPTIMIZATION_LEVEL)
michael@0: #define ANGLE_COMPILE_OPTIMIZATION_LEVEL D3DCOMPILE_OPTIMIZATION_LEVEL3
michael@0: #endif
michael@0: 
michael@0: const int versionWindowsVista = MAKEWORD(0x00, 0x06);
michael@0: const int versionWindows7 = MAKEWORD(0x01, 0x06);
michael@0: 
michael@0: // Return the version of the operating system in a format suitable for ordering
michael@0: // comparison.
michael@0: inline int getComparableOSVersion()
michael@0: {
michael@0:     DWORD version = GetVersion();
michael@0:     int majorVersion = LOBYTE(LOWORD(version));
michael@0:     int minorVersion = HIBYTE(LOWORD(version));
michael@0:     return MAKEWORD(minorVersion, majorVersion);
michael@0: }
michael@0: 
michael@0: namespace egl
michael@0: {
michael@0: class Display;
michael@0: }
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: class InfoLog;
michael@0: class ProgramBinary;
michael@0: class VertexAttribute;
michael@0: class Buffer;
michael@0: class Texture;
michael@0: class Framebuffer;
michael@0: }
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: class TextureStorageInterface2D;
michael@0: class TextureStorageInterfaceCube;
michael@0: class VertexBuffer;
michael@0: class IndexBuffer;
michael@0: class QueryImpl;
michael@0: class FenceImpl;
michael@0: class BufferStorage;
michael@0: class Blit;
michael@0: struct TranslatedIndexData;
michael@0: class ShaderExecutable;
michael@0: class SwapChain;
michael@0: class RenderTarget;
michael@0: class Image;
michael@0: class TextureStorage;
michael@0: 
michael@0: typedef void * ShaderBlob;
michael@0: typedef void (*pCompileFunc)();
michael@0: 
michael@0: struct ConfigDesc
michael@0: {
michael@0:     GLenum  renderTargetFormat;
michael@0:     GLenum  depthStencilFormat;
michael@0:     GLint   multiSample;
michael@0:     bool    fastConfig;
michael@0: };
michael@0: 
michael@0: struct dx_VertexConstants
michael@0: {
michael@0:     float depthRange[4];
michael@0:     float viewAdjust[4];
michael@0: };
michael@0: 
michael@0: struct dx_PixelConstants
michael@0: {
michael@0:     float depthRange[4];
michael@0:     float viewCoords[4];
michael@0:     float depthFront[4];
michael@0: };
michael@0: 
michael@0: enum ShaderType
michael@0: {
michael@0:     SHADER_VERTEX,
michael@0:     SHADER_PIXEL,
michael@0:     SHADER_GEOMETRY
michael@0: };
michael@0: 
michael@0: class Renderer
michael@0: {
michael@0:   public:
michael@0:     explicit Renderer(egl::Display *display);
michael@0:     virtual ~Renderer();
michael@0: 
michael@0:     virtual EGLint initialize() = 0;
michael@0:     virtual bool resetDevice() = 0;
michael@0: 
michael@0:     virtual int generateConfigs(ConfigDesc **configDescList) = 0;
michael@0:     virtual void deleteConfigs(ConfigDesc *configDescList) = 0;
michael@0: 
michael@0:     virtual void sync(bool block) = 0;
michael@0: 
michael@0:     virtual SwapChain *createSwapChain(HWND window, HANDLE shareHandle, GLenum backBufferFormat, GLenum depthBufferFormat) = 0;
michael@0: 
michael@0:     virtual void setSamplerState(gl::SamplerType type, int index, const gl::SamplerState &sampler) = 0;
michael@0:     virtual void setTexture(gl::SamplerType type, int index, gl::Texture *texture) = 0;
michael@0: 
michael@0:     virtual void setRasterizerState(const gl::RasterizerState &rasterState) = 0;
michael@0:     virtual void setBlendState(const gl::BlendState &blendState, const gl::Color &blendColor,
michael@0:                                unsigned int sampleMask) = 0;
michael@0:     virtual void setDepthStencilState(const gl::DepthStencilState &depthStencilState, int stencilRef,
michael@0:                                       int stencilBackRef, bool frontFaceCCW) = 0;
michael@0: 
michael@0:     virtual void setScissorRectangle(const gl::Rectangle &scissor, bool enabled) = 0;
michael@0:     virtual bool setViewport(const gl::Rectangle &viewport, float zNear, float zFar, GLenum drawMode, GLenum frontFace,
michael@0:                              bool ignoreViewport) = 0;
michael@0: 
michael@0:     virtual bool applyRenderTarget(gl::Framebuffer *frameBuffer) = 0;
michael@0:     virtual void applyShaders(gl::ProgramBinary *programBinary) = 0;
michael@0:     virtual void applyUniforms(gl::ProgramBinary *programBinary, gl::UniformArray *uniformArray) = 0;
michael@0:     virtual bool applyPrimitiveType(GLenum primitiveType, GLsizei elementCount) = 0;
michael@0:     virtual GLenum applyVertexBuffer(gl::ProgramBinary *programBinary, gl::VertexAttribute vertexAttributes[], GLint first, GLsizei count, GLsizei instances) = 0;
michael@0:     virtual GLenum applyIndexBuffer(const GLvoid *indices, gl::Buffer *elementArrayBuffer, GLsizei count, GLenum mode, GLenum type, TranslatedIndexData *indexInfo) = 0;
michael@0: 
michael@0:     virtual void drawArrays(GLenum mode, GLsizei count, GLsizei instances) = 0;
michael@0:     virtual void drawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, gl::Buffer *elementArrayBuffer, const TranslatedIndexData &indexInfo, GLsizei instances) = 0;
michael@0: 
michael@0:     virtual void clear(const gl::ClearParameters &clearParams, gl::Framebuffer *frameBuffer) = 0;
michael@0: 
michael@0:     virtual void markAllStateDirty() = 0;
michael@0: 
michael@0:     // lost device
michael@0:     virtual void notifyDeviceLost() = 0;
michael@0:     virtual bool isDeviceLost() = 0;
michael@0:     virtual bool testDeviceLost(bool notify) = 0;
michael@0:     virtual bool testDeviceResettable() = 0;
michael@0: 
michael@0:     // Renderer capabilities
michael@0:     virtual DWORD getAdapterVendor() const = 0;
michael@0:     virtual std::string getRendererDescription() const = 0;
michael@0:     virtual GUID getAdapterIdentifier() const = 0;
michael@0: 
michael@0:     virtual bool getBGRATextureSupport() const = 0;
michael@0:     virtual bool getDXT1TextureSupport() = 0;
michael@0:     virtual bool getDXT3TextureSupport() = 0;
michael@0:     virtual bool getDXT5TextureSupport() = 0;
michael@0:     virtual bool getEventQuerySupport() = 0;
michael@0:     virtual bool getFloat32TextureSupport(bool *filtering, bool *renderable) = 0;
michael@0:     virtual bool getFloat16TextureSupport(bool *filtering, bool *renderable) = 0;
michael@0:     virtual bool getLuminanceTextureSupport() = 0;
michael@0:     virtual bool getLuminanceAlphaTextureSupport() = 0;
michael@0:     bool getVertexTextureSupport() const { return getMaxVertexTextureImageUnits() > 0; }
michael@0:     virtual unsigned int getMaxVertexTextureImageUnits() const = 0;
michael@0:     virtual unsigned int getMaxCombinedTextureImageUnits() const = 0;
michael@0:     virtual unsigned int getReservedVertexUniformVectors() const = 0;
michael@0:     virtual unsigned int getReservedFragmentUniformVectors() const = 0;
michael@0:     virtual unsigned int getMaxVertexUniformVectors() const = 0;
michael@0:     virtual unsigned int getMaxFragmentUniformVectors() const = 0;
michael@0:     virtual unsigned int getMaxVaryingVectors() const = 0;
michael@0:     virtual bool getNonPower2TextureSupport() const = 0;
michael@0:     virtual bool getDepthTextureSupport() const = 0;
michael@0:     virtual bool getOcclusionQuerySupport() const = 0;
michael@0:     virtual bool getInstancingSupport() const = 0;
michael@0:     virtual bool getTextureFilterAnisotropySupport() const = 0;
michael@0:     virtual float getTextureMaxAnisotropy() const = 0;
michael@0:     virtual bool getShareHandleSupport() const = 0;
michael@0:     virtual bool getDerivativeInstructionSupport() const = 0;
michael@0:     virtual bool getPostSubBufferSupport() const = 0;
michael@0: 
michael@0:     virtual int getMajorShaderModel() const = 0;
michael@0:     virtual float getMaxPointSize() const = 0;
michael@0:     virtual int getMaxViewportDimension() const = 0;
michael@0:     virtual int getMaxTextureWidth() const = 0;
michael@0:     virtual int getMaxTextureHeight() const = 0;
michael@0:     virtual bool get32BitIndexSupport() const = 0;
michael@0:     virtual int getMinSwapInterval() const = 0;
michael@0:     virtual int getMaxSwapInterval() const = 0;
michael@0: 
michael@0:     virtual GLsizei getMaxSupportedSamples() const = 0;
michael@0: 
michael@0:     virtual unsigned int getMaxRenderTargets() const = 0;
michael@0: 
michael@0:     // Pixel operations
michael@0:     virtual bool copyToRenderTarget(TextureStorageInterface2D *dest, TextureStorageInterface2D *source) = 0;
michael@0:     virtual bool copyToRenderTarget(TextureStorageInterfaceCube *dest, TextureStorageInterfaceCube *source) = 0;
michael@0: 
michael@0:     virtual bool copyImage(gl::Framebuffer *framebuffer, const gl::Rectangle &sourceRect, GLenum destFormat,
michael@0:                            GLint xoffset, GLint yoffset, TextureStorageInterface2D *storage, GLint level) = 0;
michael@0:     virtual bool copyImage(gl::Framebuffer *framebuffer, const gl::Rectangle &sourceRect, GLenum destFormat,
michael@0:                            GLint xoffset, GLint yoffset, TextureStorageInterfaceCube *storage, GLenum target, GLint level) = 0;
michael@0: 
michael@0:     virtual bool blitRect(gl::Framebuffer *readTarget, const gl::Rectangle &readRect, gl::Framebuffer *drawTarget, const gl::Rectangle &drawRect,
michael@0:                           bool blitRenderTarget, bool blitDepthStencil) = 0;
michael@0:     virtual void readPixels(gl::Framebuffer *framebuffer, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type,
michael@0:                             GLsizei outputPitch, bool packReverseRowOrder, GLint packAlignment, void* pixels) = 0;
michael@0: 
michael@0:     // RenderTarget creation
michael@0:     virtual RenderTarget *createRenderTarget(SwapChain *swapChain, bool depth) = 0;
michael@0:     virtual RenderTarget *createRenderTarget(int width, int height, GLenum format, GLsizei samples, bool depth) = 0;
michael@0: 
michael@0:     // Shader operations
michael@0:     virtual ShaderExecutable *loadExecutable(const void *function, size_t length, rx::ShaderType type) = 0;
michael@0:     virtual ShaderExecutable *compileToExecutable(gl::InfoLog &infoLog, const char *shaderHLSL, rx::ShaderType type) = 0;
michael@0: 
michael@0:     // Image operations
michael@0:     virtual Image *createImage() = 0;
michael@0:     virtual void generateMipmap(Image *dest, Image *source) = 0;
michael@0:     virtual TextureStorage *createTextureStorage2D(SwapChain *swapChain) = 0;
michael@0:     virtual TextureStorage *createTextureStorage2D(int levels, GLenum internalformat, GLenum usage, bool forceRenderable, GLsizei width, GLsizei height) = 0;
michael@0:     virtual TextureStorage *createTextureStorageCube(int levels, GLenum internalformat, GLenum usage, bool forceRenderable, int size) = 0;
michael@0: 
michael@0:     // Buffer creation
michael@0:     virtual VertexBuffer *createVertexBuffer() = 0;
michael@0:     virtual IndexBuffer *createIndexBuffer() = 0;
michael@0:     virtual BufferStorage *createBufferStorage() = 0;
michael@0: 
michael@0:     // Query and Fence creation
michael@0:     virtual QueryImpl *createQuery(GLenum type) = 0;
michael@0:     virtual FenceImpl *createFence() = 0;
michael@0: 
michael@0:     virtual bool getLUID(LUID *adapterLuid) const = 0;
michael@0: 
michael@0:   protected:
michael@0:     bool initializeCompiler();
michael@0:     ShaderBlob *compileToBinary(gl::InfoLog &infoLog, const char *hlsl, const char *profile, UINT optimizationFlags, bool alternateFlags);
michael@0: 
michael@0:     egl::Display *mDisplay;
michael@0: 
michael@0:   private:
michael@0:     DISALLOW_COPY_AND_ASSIGN(Renderer);
michael@0: 
michael@0:     HMODULE mD3dCompilerModule;
michael@0:     pCompileFunc mD3DCompileFunc;
michael@0: };
michael@0: 
michael@0: }
michael@0: #endif // LIBGLESV2_RENDERER_RENDERER_H_