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#include "UnityPrefix.h"
#include "DrawUtil.h"
#include "Runtime/Math/Vector3.h"
#include "Runtime/Math/Quaternion.h"
#include "Runtime/Math/Matrix4x4.h"
#include "Runtime/Shaders/VBO.h"
#include "Runtime/GfxDevice/GfxDevice.h"
#include "Runtime/Filters/Mesh/LodMesh.h"
#include "Runtime/GfxDevice/ChannelAssigns.h"
#include "Runtime/Camera/Camera.h"
#include "Runtime/Camera/RenderManager.h"
#include "Transform.h"
#include "Runtime/GfxDevice/GfxDevice.h"
#include "Runtime/GfxDevice/GfxDeviceStats.h"
#include "Runtime/GfxDevice/BatchRendering.h"
#include "Runtime/Camera/Renderqueue.h"
#include "Runtime/Profiler/Profiler.h"
#include "Runtime/Shaders/ComputeShader.h"
#include "Runtime/Graphics/SpriteFrame.h"
#if UNITY_PS3
# include "Runtime/GfxDevice/ps3/GfxGCMVBO.h"
#endif
PROFILER_INFORMATION(gDrawMeshVBOProfile, "Mesh.DrawVBO", kProfilerRender)
PROFILER_INFORMATION(gDrawMeshNullProfile, "Graphics.DrawProcedural", kProfilerRender)
static void DrawMeshInternal (const ChannelAssigns& channels, Mesh &mesh, const Matrix4x4f &matrix, int subsetIndex, TransformType transformType);
void DrawUtil::DrawVBOMeshRaw (VBO& vbo, Mesh& mesh, const ChannelAssigns& channels, int subsetIndex, UInt32 channelsInVBO)
{
PROFILER_AUTO(gDrawMeshVBOProfile, &mesh)
subsetIndex = std::min<unsigned int>(subsetIndex, mesh.GetSubMeshCount()? mesh.GetSubMeshCount()-1:0);
SubMesh& submesh = mesh.GetSubMeshFast(subsetIndex);
int firstVertex, vertexCount;
firstVertex = submesh.firstVertex;
vertexCount = submesh.vertexCount;
#if UNITY_PS3
GfxGCMVBO& gcmVBO = (GfxGCMVBO&)vbo;
gcmVBO.DrawSubmesh(channels, subsetIndex, &submesh);
#else
vbo.DrawVBO (channels, submesh.firstByte, submesh.indexCount, submesh.topology, firstVertex, vertexCount);
#endif
GPU_TIMESTAMP();
}
void DrawUtil::DrawMeshRaw (const ChannelAssigns& channels, Mesh& mesh, int subsetIndex)
{
VBO* vbo = mesh.GetSharedVBO (channels.GetSourceMap());
if( vbo != NULL )
{
DrawVBOMeshRaw (*vbo, mesh, channels, subsetIndex);
}
}
void DrawUtil::DrawMesh (const ChannelAssigns& channels, Mesh &mesh, const Vector3f &position, const Quaternionf &rotation, int subsetIndex)
{
Matrix4x4f matrix;
QuaternionToMatrix (rotation, matrix);
matrix.SetPosition( position );
TransformType transformType = kNoScaleTransform;
DrawMeshInternal (channels, mesh, matrix, subsetIndex, transformType);
}
void DrawUtil::DrawMesh (const ChannelAssigns& channels, Mesh &mesh, const Matrix4x4f &matrix, int subsetIndex)
{
// just assume it is a scaled transform, but don't handle negative scales... oh well! (says @aras_p)
TransformType transformType = kUniformScaleTransform;
DrawMeshInternal (channels, mesh, matrix, subsetIndex, transformType);
}
static void DrawMeshInternal (const ChannelAssigns& channels, Mesh &mesh, const Matrix4x4f &matrix, int subsetIndex, TransformType transformType)
{
const Camera* camera = GetCurrentCameraPtr();
GfxDevice& device = GetGfxDevice();
float matWorld[16], matView[16];
CopyMatrix(device.GetViewMatrix(), matView);
CopyMatrix(device.GetWorldMatrix(), matWorld);
if (camera)
device.SetViewMatrix( camera->GetWorldToCameraMatrix().GetPtr() );
SetupObjectMatrix (matrix, transformType);
if (subsetIndex != -1)
{
DrawUtil::DrawMeshRaw (channels, mesh, subsetIndex);
}
else
{
int submeshCount = mesh.GetSubMeshCount();
for (int i=0;i<submeshCount;i++)
DrawUtil::DrawMeshRaw (channels, mesh, i);
}
device.SetViewMatrix(matView);
device.SetWorldMatrix(matWorld);
}
void DrawUtil::DrawProcedural (GfxPrimitiveType topology, int vertexCount, int instanceCount)
{
if (instanceCount > 1 && !gGraphicsCaps.hasInstancing)
{
ErrorString ("Can't do instanced Graphics.DrawProcedural");
return;
}
PROFILER_AUTO(gDrawMeshNullProfile, NULL)
GfxDevice& device = GetGfxDevice();
device.DrawNullGeometry (topology, vertexCount, instanceCount);
device.GetFrameStats().AddDrawCall (vertexCount*instanceCount, vertexCount*instanceCount);
GPU_TIMESTAMP();
}
void DrawUtil::DrawProceduralIndirect (GfxPrimitiveType topology, ComputeBuffer* bufferWithArgs, UInt32 argsOffset)
{
if (!gGraphicsCaps.hasInstancing || !gGraphicsCaps.hasComputeShader)
{
ErrorString ("Can't do indirect Graphics.DrawProcedural");
return;
}
if (!bufferWithArgs)
{
ErrorString ("Graphics.DrawProcedural with invalid buffer");
return;
}
ComputeBufferID bufferHandle = bufferWithArgs->GetBufferHandle();
if (!bufferHandle.IsValid())
{
ErrorString ("Graphics.DrawProcedural with invalid buffer");
return;
}
PROFILER_AUTO(gDrawMeshNullProfile, NULL)
GfxDevice& device = GetGfxDevice();
device.DrawNullGeometryIndirect (topology, bufferHandle, argsOffset);
device.GetFrameStats().AddDrawCall (1,1); // unknown primitive count
GPU_TIMESTAMP();
}
void DrawUtil::DrawSpriteRaw (const ChannelAssigns& channels, Sprite& sprite, const ColorRGBAf& color)
{
GfxDevice& device = GetGfxDevice();
const SpriteRenderData& rd = sprite.GetRenderData(false); // Use non-atlased RenderData as input.
Assert(rd.texture.IsValid());
// Get VBO chunk for a rectangle or mesh
UInt32 numIndices = rd.indices.size();
UInt32 numVertices = rd.vertices.size();
if (!numIndices)
return;
const UInt32 channelMask = (1<<kShaderChannelVertex) | (1<<kShaderChannelTexCoord0) | (1<<kShaderChannelColor);
DynamicVBO& vbo = device.GetDynamicVBO();
UInt8* __restrict vbPtr;
UInt16* __restrict ibPtr;
if ( !vbo.GetChunk(channelMask, numVertices, numIndices, DynamicVBO::kDrawIndexedTriangles, (void**)&vbPtr, (void**)&ibPtr) )
return;
TransformSprite (vbPtr, ibPtr, NULL, &rd, device.ConvertToDeviceVertexColor(color), 0);
vbo.ReleaseChunk(numVertices, numIndices);
vbo.DrawChunk(channels);
}
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