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#include "UnityPrefix.h"
#include "GfxDeviceNull.h"
#include "Runtime/Shaders/GraphicsCaps.h"
#include "Runtime/Graphics/RenderSurface.h"
#include "GfxNullVBO.h"
#include "Runtime/GfxDevice/GfxDeviceWindow.h"
#include "External/shaderlab/Library/program.h"
static DeviceBlendState g_NullBlendState;
static DeviceDepthState g_NullDepthState;
static DeviceStencilState g_NullStencilState;
static DeviceRasterState g_NullRasterState;
static float g_NullWorldMatrix[16];
static float g_NullViewMatrix[16];
static float g_NullProjectionMatrix[16];
static RenderSurfaceBase _ColorDefaultSurface;
static RenderSurfaceBase _DepthDefaultSurface;
void GraphicsCaps::InitNull(void)
{
rendererString = "Null Device";
vendorString = "Unity Technologies";
driverVersionString = "1.0";
fixedVersionString = "NULL 1.0 [1.0]";
driverLibraryString = "(null)";
videoMemoryMB = 64.0f;
rendererID = 0;
vendorID = 0;
printf_console( "NullGfxDevice:\n" );
printf_console( " Version: %s\n", fixedVersionString.c_str() );
printf_console( " Renderer: %s\n", rendererString.c_str() );
printf_console( " Vendor: %s\n", vendorString.c_str() );
shaderCaps = kShaderLevel2;
maxLights = 8;
hasAnisoFilter = false;
maxAnisoLevel = 0;
hasMipLevelBias = false;
hasMultiSample = false;
hasBlendSquare = false;
hasSeparateAlphaBlend = false;
hasS3TCCompression = false;
hasAutoMipMapGeneration = false;
maxTexImageUnits = 2;
maxTexCoords = 2;
maxTexUnits = 2;
maxTextureSize = 1024;
maxCubeMapSize = 0;
maxRenderTextureSize = 0;
for (int i = 0; i < kRTFormatCount; ++i)
{
supportsRenderTextureFormat[i] = false;
}
has3DTexture = false;
npotRT = npot = kNPOTNone;
hasRenderToTexture = false;
hasRenderToCubemap = false;
hasRenderTargetStencil = false;
hasTwoSidedStencil = false;
hasHighPrecisionTextureCombiners = false;
hasNativeDepthTexture = false;
hasStencilInDepthTexture = false;
hasNativeShadowMap = false;
needsToSwizzleVertexColors = false;
}
GfxDevice* CreateNullGfxDevice()
{
::gGraphicsCaps.InitNull();
return UNITY_NEW_AS_ROOT(GfxDeviceNull(), kMemGfxDevice, "NullGfxDevice","");
}
GfxDeviceNull::GfxDeviceNull(void)
: dynamicVBO(NULL)
{
InvalidateState();
ResetFrameStats();
m_Renderer = kGfxRendererNull;
m_UsesOpenGLTextureCoords = false;
m_UsesHalfTexelOffset = false;
m_MaxBufferedFrames = -1; // no limiting
RenderSurfaceBase_InitColor(_ColorDefaultSurface);
_ColorDefaultSurface.backBuffer = true;
SetBackBufferColorSurface(&_ColorDefaultSurface);
RenderSurfaceBase_InitDepth(_DepthDefaultSurface);
_DepthDefaultSurface.backBuffer = true;
SetBackBufferDepthSurface(&_DepthDefaultSurface);
}
GfxDeviceNull::~GfxDeviceNull(void)
{
delete this->dynamicVBO;
}
void GfxDeviceNull::GetMatrix( float outMatrix[16] ) const
{
for( int i = 0; i < 16; ++i )
outMatrix[i] = 0.0f;
}
void GfxDeviceNull::GetViewport( int* port ) const
{
AssertIf(!port);
port[0] = 0;
port[1] = 0;
port[2] = 1;
port[3] = 1;
}
void GfxDeviceNull::GetScissorRect( int scissor[4] ) const
{
AssertIf(!scissor);
scissor[0] = 0;
scissor[1] = 0;
scissor[2] = 1;
scissor[3] = 1;
}
TextureCombinersHandle GfxDeviceNull::CreateTextureCombiners( int count, const ShaderLab::TextureBinding* texEnvs, const ShaderLab::PropertySheet* props, bool hasVertexColorOrLighting, bool usesAddSpecular )
{
return TextureCombinersHandle(this); // just have to pass non-NULL to the handle
}
void GfxDeviceNull::DeleteTextureCombiners( TextureCombinersHandle& textureCombiners )
{
textureCombiners.Reset();
}
void GfxDeviceNull::DestroySubProgram( ShaderLab::SubProgram* subprogram )
{
delete subprogram;
}
VBO* GfxDeviceNull::CreateVBO()
{
VBO* vbo = new GfxNullVBO();
OnCreateVBO(vbo);
return vbo;
}
void GfxDeviceNull::DeleteVBO( VBO* vbo )
{
AssertIf(!vbo);
OnDeleteVBO(vbo);
delete vbo;
}
DynamicVBO& GfxDeviceNull::GetDynamicVBO()
{
if (NULL == this->dynamicVBO)
{
this->dynamicVBO = new GfxDynamicNullVBO();
}
return *this->dynamicVBO;
}
bool GfxDeviceNull::CaptureScreenshot( int left, int bottom, int width, int height, UInt8* rgba32 )
{
return true;
}
bool GfxDeviceNull::ReadbackImage( ImageReference& image, int left, int bottom, int width, int height, int destX, int destY )
{
return true;
}
DeviceBlendState* GfxDeviceNull::CreateBlendState(const GfxBlendState& state)
{
return & g_NullBlendState;
}
DeviceDepthState* GfxDeviceNull::CreateDepthState(const GfxDepthState& state)
{
return & g_NullDepthState;
}
DeviceStencilState* GfxDeviceNull::CreateStencilState(const GfxStencilState& state)
{
return & g_NullStencilState;
}
DeviceRasterState* GfxDeviceNull::CreateRasterState(const GfxRasterState& state)
{
return & g_NullRasterState;
}
const float* GfxDeviceNull::GetWorldMatrix() const
{
return g_NullWorldMatrix;
}
const float* GfxDeviceNull::GetViewMatrix() const
{
return g_NullViewMatrix;
}
const float* GfxDeviceNull::GetProjectionMatrix() const
{
return g_NullProjectionMatrix;
}
RenderSurfaceHandle GfxDeviceNull::CreateRenderColorSurface (TextureID textureID, int width, int height, int samples, int depth, TextureDimension dim, RenderTextureFormat format, UInt32 createFlags)
{
return RenderSurfaceHandle(&_ColorDefaultSurface);
}
RenderSurfaceHandle GfxDeviceNull::CreateRenderDepthSurface (TextureID textureID, int width, int height, int samples, TextureDimension dim, DepthBufferFormat depthFormat, UInt32 createFlags)
{
return RenderSurfaceHandle(&_DepthDefaultSurface);
}
// -------- editor only functions
#if UNITY_EDITOR
GfxDeviceWindow* GfxDeviceNull::CreateGfxWindow( HWND window, int width, int height, DepthBufferFormat depthFormat, int antiAlias )
{
return new GfxDeviceWindow(window,width, height, depthFormat, antiAlias);
}
#endif
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