diff options
Diffstat (limited to 'Samples/OculusRoomTiny/RenderTiny_Device.cpp')
| -rw-r--r-- | Samples/OculusRoomTiny/RenderTiny_Device.cpp | 884 |
1 files changed, 442 insertions, 442 deletions
diff --git a/Samples/OculusRoomTiny/RenderTiny_Device.cpp b/Samples/OculusRoomTiny/RenderTiny_Device.cpp index 1d6cdde..2c363c2 100644 --- a/Samples/OculusRoomTiny/RenderTiny_Device.cpp +++ b/Samples/OculusRoomTiny/RenderTiny_Device.cpp @@ -1,442 +1,442 @@ -/************************************************************************************
-
-Filename : RenderTiny_Device.cpp
-Content : Platform renderer for simple scene graph - implementation
-Created : September 6, 2012
-Authors : Andrew Reisse
-
-Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
-************************************************************************************/
-
-#include "RenderTiny_Device.h"
-
-#include "Kernel/OVR_Log.h"
-
-namespace OVR { namespace RenderTiny {
-
-void Model::Render(const Matrix4f& ltw, RenderDevice* ren)
-{
- if (Visible)
- {
- Matrix4f m = ltw * GetMatrix();
- ren->Render(m, this);
- }
-}
-
-void Container::Render(const Matrix4f& ltw, RenderDevice* ren)
-{
- Matrix4f m = ltw * GetMatrix();
- for(unsigned i = 0; i < Nodes.GetSize(); i++)
- {
- Nodes[i]->Render(m, ren);
- }
-}
-
-void Scene::Render(RenderDevice* ren, const Matrix4f& view)
-{
- Lighting.Update(view, LightPos);
-
- ren->SetLighting(&Lighting);
-
- World.Render(view, ren);
-}
-
-
-
-UInt16 CubeIndices[] =
-{
- 0, 1, 3,
- 3, 1, 2,
-
- 5, 4, 6,
- 6, 4, 7,
-
- 8, 9, 11,
- 11, 9, 10,
-
- 13, 12, 14,
- 14, 12, 15,
-
- 16, 17, 19,
- 19, 17, 18,
-
- 21, 20, 22,
- 22, 20, 23
-};
-
-
-void Model::AddSolidColorBox(float x1, float y1, float z1,
- float x2, float y2, float z2,
- Color c)
-{
- float t;
-
- if(x1 > x2)
- {
- t = x1;
- x1 = x2;
- x2 = t;
- }
- if(y1 > y2)
- {
- t = y1;
- y1 = y2;
- y2 = t;
- }
- if(z1 > z2)
- {
- t = z1;
- z1 = z2;
- z2 = t;
- }
-
- // Cube vertices and their normals.
- Vector3f CubeVertices[][3] =
- {
- Vector3f(x1, y2, z1), Vector3f(z1, x1), Vector3f(0.0f, 1.0f, 0.0f),
- Vector3f(x2, y2, z1), Vector3f(z1, x2), Vector3f(0.0f, 1.0f, 0.0f),
- Vector3f(x2, y2, z2), Vector3f(z2, x2), Vector3f(0.0f, 1.0f, 0.0f),
- Vector3f(x1, y2, z2), Vector3f(z2, x1), Vector3f(0.0f, 1.0f, 0.0f),
-
- Vector3f(x1, y1, z1), Vector3f(z1, x1), Vector3f(0.0f, -1.0f, 0.0f),
- Vector3f(x2, y1, z1), Vector3f(z1, x2), Vector3f(0.0f, -1.0f, 0.0f),
- Vector3f(x2, y1, z2), Vector3f(z2, x2), Vector3f(0.0f, -1.0f, 0.0f),
- Vector3f(x1, y1, z2), Vector3f(z2, x1), Vector3f(0.0f, -1.0f, 0.0f),
-
- Vector3f(x1, y1, z2), Vector3f(z2, y1), Vector3f(-1.0f, 0.0f, 0.0f),
- Vector3f(x1, y1, z1), Vector3f(z1, y1), Vector3f(-1.0f, 0.0f, 0.0f),
- Vector3f(x1, y2, z1), Vector3f(z1, y2), Vector3f(-1.0f, 0.0f, 0.0f),
- Vector3f(x1, y2, z2), Vector3f(z2, y2), Vector3f(-1.0f, 0.0f, 0.0f),
-
- Vector3f(x2, y1, z2), Vector3f(z2, y1), Vector3f(1.0f, 0.0f, 0.0f),
- Vector3f(x2, y1, z1), Vector3f(z1, y1), Vector3f(1.0f, 0.0f, 0.0f),
- Vector3f(x2, y2, z1), Vector3f(z1, y2), Vector3f(1.0f, 0.0f, 0.0f),
- Vector3f(x2, y2, z2), Vector3f(z2, y2), Vector3f(1.0f, 0.0f, 0.0f),
-
- Vector3f(x1, y1, z1), Vector3f(x1, y1), Vector3f(0.0f, 0.0f, -1.0f),
- Vector3f(x2, y1, z1), Vector3f(x2, y1), Vector3f(0.0f, 0.0f, -1.0f),
- Vector3f(x2, y2, z1), Vector3f(x2, y2), Vector3f(0.0f, 0.0f, -1.0f),
- Vector3f(x1, y2, z1), Vector3f(x1, y2), Vector3f(0.0f, 0.0f, -1.0f),
-
- Vector3f(x1, y1, z2), Vector3f(x1, y1), Vector3f(0.0f, 0.0f, 1.0f),
- Vector3f(x2, y1, z2), Vector3f(x2, y1), Vector3f(0.0f, 0.0f, 1.0f),
- Vector3f(x2, y2, z2), Vector3f(x2, y2), Vector3f(0.0f, 0.0f, 1.0f),
- Vector3f(x1, y2, z2), Vector3f(x1, y2), Vector3f(0.0f, 0.0f, 1.0f)
- };
-
-
- UInt16 startIndex = GetNextVertexIndex();
-
- enum
- {
- CubeVertexCount = sizeof(CubeVertices) / sizeof(CubeVertices[0]),
- CubeIndexCount = sizeof(CubeIndices) / sizeof(CubeIndices[0])
- };
-
- for(int v = 0; v < CubeVertexCount; v++)
- {
- AddVertex(Vertex(CubeVertices[v][0], c, CubeVertices[v][1].x, CubeVertices[v][1].y, CubeVertices[v][2]));
- }
-
- // Renumber indices
- for(int i = 0; i < CubeIndexCount / 3; i++)
- {
- AddTriangle(CubeIndices[i * 3] + startIndex,
- CubeIndices[i * 3 + 1] + startIndex,
- CubeIndices[i * 3 + 2] + startIndex);
- }
-}
-
-
-//-------------------------------------------------------------------------------------
-
-
-void ShaderFill::Set(PrimitiveType prim) const
-{
- Shaders->Set(prim);
- for(int i = 0; i < 8; i++)
- {
- if(Textures[i])
- {
- Textures[i]->Set(i);
- }
- }
-}
-
-
-
-//-------------------------------------------------------------------------------------
-// ***** Rendering
-
-
-RenderDevice::RenderDevice()
- : CurPostProcess(PostProcess_None),
- SceneColorTexW(0), SceneColorTexH(0),
- SceneRenderScale(1),
- Distortion(1.0f, 0.18f, 0.115f),
- PostProcessShaderActive(PostProcessShader_DistortionAndChromAb)
-{
- PostProcessShaderRequested = PostProcessShaderActive;
-}
-
-ShaderFill* RenderDevice::CreateTextureFill(RenderTiny::Texture* t)
-{
- ShaderSet* shaders = CreateShaderSet();
- shaders->SetShader(LoadBuiltinShader(Shader_Vertex, VShader_MVP));
- shaders->SetShader(LoadBuiltinShader(Shader_Fragment, FShader_Texture));
- ShaderFill* f = new ShaderFill(*shaders);
- f->SetTexture(0, t);
- return f;
-}
-
-void RenderDevice::SetLighting(const LightingParams* lt)
-{
- if (!LightingBuffer)
- LightingBuffer = *CreateBuffer();
-
- LightingBuffer->Data(Buffer_Uniform, lt, sizeof(LightingParams));
- SetCommonUniformBuffer(1, LightingBuffer);
-}
-
-
-
-void RenderDevice::SetSceneRenderScale(float ss)
-{
- SceneRenderScale = ss;
- pSceneColorTex = NULL;
-}
-
-void RenderDevice::SetViewport(const Viewport& vp)
-{
- VP = vp;
-
- if (CurPostProcess == PostProcess_Distortion)
- {
- Viewport svp = vp;
- svp.w = (int)ceil(SceneRenderScale * vp.w);
- svp.h = (int)ceil(SceneRenderScale * vp.h);
- svp.x = (int)ceil(SceneRenderScale * vp.x);
- svp.y = (int)ceil(SceneRenderScale * vp.y);
- SetRealViewport(svp);
- }
- else
- {
- SetRealViewport(vp);
- }
-}
-
-
-bool RenderDevice::initPostProcessSupport(PostProcessType pptype)
-{
- if (pptype != PostProcess_Distortion)
- return true;
-
-
- if (PostProcessShaderRequested != PostProcessShaderActive)
- {
- pPostProcessShader.Clear();
- PostProcessShaderActive = PostProcessShaderRequested;
- }
-
- if (!pPostProcessShader)
- {
- Shader *vs = LoadBuiltinShader(Shader_Vertex, VShader_PostProcess);
-
- Shader *ppfs = NULL;
- if (PostProcessShaderActive == PostProcessShader_Distortion)
- {
- ppfs = LoadBuiltinShader(Shader_Fragment, FShader_PostProcess);
- }
- else if (PostProcessShaderActive == PostProcessShader_DistortionAndChromAb)
- {
- ppfs = LoadBuiltinShader(Shader_Fragment, FShader_PostProcessWithChromAb);
- }
- else
- OVR_ASSERT(false);
-
- pPostProcessShader = *CreateShaderSet();
- pPostProcessShader->SetShader(vs);
- pPostProcessShader->SetShader(ppfs);
- }
-
-
- int texw = (int)ceil(SceneRenderScale * WindowWidth),
- texh = (int)ceil(SceneRenderScale * WindowHeight);
-
- // If pSceneColorTex is already created and is of correct size, we are done.
- // It's important to check width/height in case window size changed.
- if (pSceneColorTex && (texw == SceneColorTexW) && (texh == SceneColorTexH))
- {
- return true;
- }
-
- pSceneColorTex = *CreateTexture(Texture_RGBA | Texture_RenderTarget | Params.Multisample,
- texw, texh, NULL);
- if (!pSceneColorTex)
- {
- return false;
- }
- SceneColorTexW = texw;
- SceneColorTexH = texh;
- pSceneColorTex->SetSampleMode(Sample_ClampBorder | Sample_Linear);
-
-
- if (!pFullScreenVertexBuffer)
- {
- pFullScreenVertexBuffer = *CreateBuffer();
- const RenderTiny::Vertex QuadVertices[] =
- {
- Vertex(Vector3f(0, 1, 0), Color(1, 1, 1, 1), 0, 0),
- Vertex(Vector3f(1, 1, 0), Color(1, 1, 1, 1), 1, 0),
- Vertex(Vector3f(0, 0, 0), Color(1, 1, 1, 1), 0, 1),
- Vertex(Vector3f(1, 0, 0), Color(1, 1, 1, 1), 1, 1)
- };
- pFullScreenVertexBuffer->Data(Buffer_Vertex, QuadVertices, sizeof(QuadVertices));
- }
- return true;
-}
-
-void RenderDevice::SetProjection(const Matrix4f& proj)
-{
- Proj = proj;
- SetWorldUniforms(proj);
-}
-
-void RenderDevice::BeginScene(PostProcessType pptype)
-{
- BeginRendering();
-
- if ((pptype != PostProcess_None) && initPostProcessSupport(pptype))
- {
- CurPostProcess = pptype;
- }
- else
- {
- CurPostProcess = PostProcess_None;
- }
-
- if (CurPostProcess == PostProcess_Distortion)
- {
- SetRenderTarget(pSceneColorTex);
- SetViewport(VP);
- }
- else
- {
- SetRenderTarget(0);
- }
-
- SetWorldUniforms(Proj);
-}
-
-void RenderDevice::FinishScene()
-{
- if (CurPostProcess == PostProcess_None)
- return;
-
- SetRenderTarget(0);
- SetRealViewport(VP);
- FinishScene1();
-
- CurPostProcess = PostProcess_None;
-}
-
-
-
-void RenderDevice::FinishScene1()
-{
- // Clear with black
- Clear(0.0f, 0.0f, 0.0f, 1.0f);
-
- float w = float(VP.w) / float(WindowWidth),
- h = float(VP.h) / float(WindowHeight),
- x = float(VP.x) / float(WindowWidth),
- y = float(VP.y) / float(WindowHeight);
-
- float as = float(VP.w) / float(VP.h);
-
- // We are using 1/4 of DistortionCenter offset value here, since it is
- // relative to [-1,1] range that gets mapped to [0, 0.5].
- pPostProcessShader->SetUniform2f("LensCenter",
- x + (w + Distortion.XCenterOffset * 0.5f)*0.5f, y + h*0.5f);
- pPostProcessShader->SetUniform2f("ScreenCenter", x + w*0.5f, y + h*0.5f);
-
- // MA: This is more correct but we would need higher-res texture vertically; we should adopt this
- // once we have asymmetric input texture scale.
- float scaleFactor = 1.0f / Distortion.Scale;
-
- pPostProcessShader->SetUniform2f("Scale", (w/2) * scaleFactor, (h/2) * scaleFactor * as);
- pPostProcessShader->SetUniform2f("ScaleIn", (2/w), (2/h) / as);
-
- pPostProcessShader->SetUniform4f("HmdWarpParam",
- Distortion.K[0], Distortion.K[1], Distortion.K[2], Distortion.K[3]);
-
- if (PostProcessShaderRequested == PostProcessShader_DistortionAndChromAb)
- {
- pPostProcessShader->SetUniform4f("ChromAbParam",
- Distortion.ChromaticAberration[0],
- Distortion.ChromaticAberration[1],
- Distortion.ChromaticAberration[2],
- Distortion.ChromaticAberration[3]);
- }
-
- Matrix4f texm(w, 0, 0, x,
- 0, h, 0, y,
- 0, 0, 0, 0,
- 0, 0, 0, 1);
- pPostProcessShader->SetUniform4x4f("Texm", texm);
-
- Matrix4f view(2, 0, 0, -1,
- 0, 2, 0, -1,
- 0, 0, 0, 0,
- 0, 0, 0, 1);
-
- ShaderFill fill(pPostProcessShader);
- fill.SetTexture(0, pSceneColorTex);
- Render(&fill, pFullScreenVertexBuffer, NULL, view, 0, 4, Prim_TriangleStrip);
-}
-
-
-int GetNumMipLevels(int w, int h)
-{
- int n = 1;
- while(w > 1 || h > 1)
- {
- w >>= 1;
- h >>= 1;
- n++;
- }
- return n;
-}
-
-void FilterRgba2x2(const UByte* src, int w, int h, UByte* dest)
-{
- for(int j = 0; j < (h & ~1); j += 2)
- {
- const UByte* psrc = src + (w * j * 4);
- UByte* pdest = dest + ((w >> 1) * (j >> 1) * 4);
-
- for(int i = 0; i < w >> 1; i++, psrc += 8, pdest += 4)
- {
- pdest[0] = (((int)psrc[0]) + psrc[4] + psrc[w * 4 + 0] + psrc[w * 4 + 4]) >> 2;
- pdest[1] = (((int)psrc[1]) + psrc[5] + psrc[w * 4 + 1] + psrc[w * 4 + 5]) >> 2;
- pdest[2] = (((int)psrc[2]) + psrc[6] + psrc[w * 4 + 2] + psrc[w * 4 + 6]) >> 2;
- pdest[3] = (((int)psrc[3]) + psrc[7] + psrc[w * 4 + 3] + psrc[w * 4 + 7]) >> 2;
- }
- }
-}
-
-
-}}
+/************************************************************************************ + +Filename : RenderTiny_Device.cpp +Content : Platform renderer for simple scene graph - implementation +Created : September 6, 2012 +Authors : Andrew Reisse + +Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + +http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. + +************************************************************************************/ + +#include "RenderTiny_Device.h" + +#include "Kernel/OVR_Log.h" + +namespace OVR { namespace RenderTiny { + +void Model::Render(const Matrix4f& ltw, RenderDevice* ren) +{ + if (Visible) + { + Matrix4f m = ltw * GetMatrix(); + ren->Render(m, this); + } +} + +void Container::Render(const Matrix4f& ltw, RenderDevice* ren) +{ + Matrix4f m = ltw * GetMatrix(); + for(unsigned i = 0; i < Nodes.GetSize(); i++) + { + Nodes[i]->Render(m, ren); + } +} + +void Scene::Render(RenderDevice* ren, const Matrix4f& view) +{ + Lighting.Update(view, LightPos); + + ren->SetLighting(&Lighting); + + World.Render(view, ren); +} + + + +UInt16 CubeIndices[] = +{ + 0, 1, 3, + 3, 1, 2, + + 5, 4, 6, + 6, 4, 7, + + 8, 9, 11, + 11, 9, 10, + + 13, 12, 14, + 14, 12, 15, + + 16, 17, 19, + 19, 17, 18, + + 21, 20, 22, + 22, 20, 23 +}; + + +void Model::AddSolidColorBox(float x1, float y1, float z1, + float x2, float y2, float z2, + Color c) +{ + float t; + + if(x1 > x2) + { + t = x1; + x1 = x2; + x2 = t; + } + if(y1 > y2) + { + t = y1; + y1 = y2; + y2 = t; + } + if(z1 > z2) + { + t = z1; + z1 = z2; + z2 = t; + } + + // Cube vertices and their normals. + Vector3f CubeVertices[][3] = + { + Vector3f(x1, y2, z1), Vector3f(z1, x1), Vector3f(0.0f, 1.0f, 0.0f), + Vector3f(x2, y2, z1), Vector3f(z1, x2), Vector3f(0.0f, 1.0f, 0.0f), + Vector3f(x2, y2, z2), Vector3f(z2, x2), Vector3f(0.0f, 1.0f, 0.0f), + Vector3f(x1, y2, z2), Vector3f(z2, x1), Vector3f(0.0f, 1.0f, 0.0f), + + Vector3f(x1, y1, z1), Vector3f(z1, x1), Vector3f(0.0f, -1.0f, 0.0f), + Vector3f(x2, y1, z1), Vector3f(z1, x2), Vector3f(0.0f, -1.0f, 0.0f), + Vector3f(x2, y1, z2), Vector3f(z2, x2), Vector3f(0.0f, -1.0f, 0.0f), + Vector3f(x1, y1, z2), Vector3f(z2, x1), Vector3f(0.0f, -1.0f, 0.0f), + + Vector3f(x1, y1, z2), Vector3f(z2, y1), Vector3f(-1.0f, 0.0f, 0.0f), + Vector3f(x1, y1, z1), Vector3f(z1, y1), Vector3f(-1.0f, 0.0f, 0.0f), + Vector3f(x1, y2, z1), Vector3f(z1, y2), Vector3f(-1.0f, 0.0f, 0.0f), + Vector3f(x1, y2, z2), Vector3f(z2, y2), Vector3f(-1.0f, 0.0f, 0.0f), + + Vector3f(x2, y1, z2), Vector3f(z2, y1), Vector3f(1.0f, 0.0f, 0.0f), + Vector3f(x2, y1, z1), Vector3f(z1, y1), Vector3f(1.0f, 0.0f, 0.0f), + Vector3f(x2, y2, z1), Vector3f(z1, y2), Vector3f(1.0f, 0.0f, 0.0f), + Vector3f(x2, y2, z2), Vector3f(z2, y2), Vector3f(1.0f, 0.0f, 0.0f), + + Vector3f(x1, y1, z1), Vector3f(x1, y1), Vector3f(0.0f, 0.0f, -1.0f), + Vector3f(x2, y1, z1), Vector3f(x2, y1), Vector3f(0.0f, 0.0f, -1.0f), + Vector3f(x2, y2, z1), Vector3f(x2, y2), Vector3f(0.0f, 0.0f, -1.0f), + Vector3f(x1, y2, z1), Vector3f(x1, y2), Vector3f(0.0f, 0.0f, -1.0f), + + Vector3f(x1, y1, z2), Vector3f(x1, y1), Vector3f(0.0f, 0.0f, 1.0f), + Vector3f(x2, y1, z2), Vector3f(x2, y1), Vector3f(0.0f, 0.0f, 1.0f), + Vector3f(x2, y2, z2), Vector3f(x2, y2), Vector3f(0.0f, 0.0f, 1.0f), + Vector3f(x1, y2, z2), Vector3f(x1, y2), Vector3f(0.0f, 0.0f, 1.0f) + }; + + + UInt16 startIndex = GetNextVertexIndex(); + + enum + { + CubeVertexCount = sizeof(CubeVertices) / sizeof(CubeVertices[0]), + CubeIndexCount = sizeof(CubeIndices) / sizeof(CubeIndices[0]) + }; + + for(int v = 0; v < CubeVertexCount; v++) + { + AddVertex(Vertex(CubeVertices[v][0], c, CubeVertices[v][1].x, CubeVertices[v][1].y, CubeVertices[v][2])); + } + + // Renumber indices + for(int i = 0; i < CubeIndexCount / 3; i++) + { + AddTriangle(CubeIndices[i * 3] + startIndex, + CubeIndices[i * 3 + 1] + startIndex, + CubeIndices[i * 3 + 2] + startIndex); + } +} + + +//------------------------------------------------------------------------------------- + + +void ShaderFill::Set(PrimitiveType prim) const +{ + Shaders->Set(prim); + for(int i = 0; i < 8; i++) + { + if(Textures[i]) + { + Textures[i]->Set(i); + } + } +} + + + +//------------------------------------------------------------------------------------- +// ***** Rendering + + +RenderDevice::RenderDevice() + : CurPostProcess(PostProcess_None), + SceneColorTexW(0), SceneColorTexH(0), + SceneRenderScale(1), + Distortion(1.0f, 0.18f, 0.115f), + PostProcessShaderActive(PostProcessShader_DistortionAndChromAb) +{ + PostProcessShaderRequested = PostProcessShaderActive; +} + +ShaderFill* RenderDevice::CreateTextureFill(RenderTiny::Texture* t) +{ + ShaderSet* shaders = CreateShaderSet(); + shaders->SetShader(LoadBuiltinShader(Shader_Vertex, VShader_MVP)); + shaders->SetShader(LoadBuiltinShader(Shader_Fragment, FShader_Texture)); + ShaderFill* f = new ShaderFill(*shaders); + f->SetTexture(0, t); + return f; +} + +void RenderDevice::SetLighting(const LightingParams* lt) +{ + if (!LightingBuffer) + LightingBuffer = *CreateBuffer(); + + LightingBuffer->Data(Buffer_Uniform, lt, sizeof(LightingParams)); + SetCommonUniformBuffer(1, LightingBuffer); +} + + + +void RenderDevice::SetSceneRenderScale(float ss) +{ + SceneRenderScale = ss; + pSceneColorTex = NULL; +} + +void RenderDevice::SetViewport(const Viewport& vp) +{ + VP = vp; + + if (CurPostProcess == PostProcess_Distortion) + { + Viewport svp = vp; + svp.w = (int)ceil(SceneRenderScale * vp.w); + svp.h = (int)ceil(SceneRenderScale * vp.h); + svp.x = (int)ceil(SceneRenderScale * vp.x); + svp.y = (int)ceil(SceneRenderScale * vp.y); + SetRealViewport(svp); + } + else + { + SetRealViewport(vp); + } +} + + +bool RenderDevice::initPostProcessSupport(PostProcessType pptype) +{ + if (pptype != PostProcess_Distortion) + return true; + + + if (PostProcessShaderRequested != PostProcessShaderActive) + { + pPostProcessShader.Clear(); + PostProcessShaderActive = PostProcessShaderRequested; + } + + if (!pPostProcessShader) + { + Shader *vs = LoadBuiltinShader(Shader_Vertex, VShader_PostProcess); + + Shader *ppfs = NULL; + if (PostProcessShaderActive == PostProcessShader_Distortion) + { + ppfs = LoadBuiltinShader(Shader_Fragment, FShader_PostProcess); + } + else if (PostProcessShaderActive == PostProcessShader_DistortionAndChromAb) + { + ppfs = LoadBuiltinShader(Shader_Fragment, FShader_PostProcessWithChromAb); + } + else + OVR_ASSERT(false); + + pPostProcessShader = *CreateShaderSet(); + pPostProcessShader->SetShader(vs); + pPostProcessShader->SetShader(ppfs); + } + + + int texw = (int)ceil(SceneRenderScale * WindowWidth), + texh = (int)ceil(SceneRenderScale * WindowHeight); + + // If pSceneColorTex is already created and is of correct size, we are done. + // It's important to check width/height in case window size changed. + if (pSceneColorTex && (texw == SceneColorTexW) && (texh == SceneColorTexH)) + { + return true; + } + + pSceneColorTex = *CreateTexture(Texture_RGBA | Texture_RenderTarget | Params.Multisample, + texw, texh, NULL); + if (!pSceneColorTex) + { + return false; + } + SceneColorTexW = texw; + SceneColorTexH = texh; + pSceneColorTex->SetSampleMode(Sample_ClampBorder | Sample_Linear); + + + if (!pFullScreenVertexBuffer) + { + pFullScreenVertexBuffer = *CreateBuffer(); + const RenderTiny::Vertex QuadVertices[] = + { + Vertex(Vector3f(0, 1, 0), Color(1, 1, 1, 1), 0, 0), + Vertex(Vector3f(1, 1, 0), Color(1, 1, 1, 1), 1, 0), + Vertex(Vector3f(0, 0, 0), Color(1, 1, 1, 1), 0, 1), + Vertex(Vector3f(1, 0, 0), Color(1, 1, 1, 1), 1, 1) + }; + pFullScreenVertexBuffer->Data(Buffer_Vertex, QuadVertices, sizeof(QuadVertices)); + } + return true; +} + +void RenderDevice::SetProjection(const Matrix4f& proj) +{ + Proj = proj; + SetWorldUniforms(proj); +} + +void RenderDevice::BeginScene(PostProcessType pptype) +{ + BeginRendering(); + + if ((pptype != PostProcess_None) && initPostProcessSupport(pptype)) + { + CurPostProcess = pptype; + } + else + { + CurPostProcess = PostProcess_None; + } + + if (CurPostProcess == PostProcess_Distortion) + { + SetRenderTarget(pSceneColorTex); + SetViewport(VP); + } + else + { + SetRenderTarget(0); + } + + SetWorldUniforms(Proj); +} + +void RenderDevice::FinishScene() +{ + if (CurPostProcess == PostProcess_None) + return; + + SetRenderTarget(0); + SetRealViewport(VP); + FinishScene1(); + + CurPostProcess = PostProcess_None; +} + + + +void RenderDevice::FinishScene1() +{ + // Clear with black + Clear(0.0f, 0.0f, 0.0f, 1.0f); + + float w = float(VP.w) / float(WindowWidth), + h = float(VP.h) / float(WindowHeight), + x = float(VP.x) / float(WindowWidth), + y = float(VP.y) / float(WindowHeight); + + float as = float(VP.w) / float(VP.h); + + // We are using 1/4 of DistortionCenter offset value here, since it is + // relative to [-1,1] range that gets mapped to [0, 0.5]. + pPostProcessShader->SetUniform2f("LensCenter", + x + (w + Distortion.XCenterOffset * 0.5f)*0.5f, y + h*0.5f); + pPostProcessShader->SetUniform2f("ScreenCenter", x + w*0.5f, y + h*0.5f); + + // MA: This is more correct but we would need higher-res texture vertically; we should adopt this + // once we have asymmetric input texture scale. + float scaleFactor = 1.0f / Distortion.Scale; + + pPostProcessShader->SetUniform2f("Scale", (w/2) * scaleFactor, (h/2) * scaleFactor * as); + pPostProcessShader->SetUniform2f("ScaleIn", (2/w), (2/h) / as); + + pPostProcessShader->SetUniform4f("HmdWarpParam", + Distortion.K[0], Distortion.K[1], Distortion.K[2], Distortion.K[3]); + + if (PostProcessShaderRequested == PostProcessShader_DistortionAndChromAb) + { + pPostProcessShader->SetUniform4f("ChromAbParam", + Distortion.ChromaticAberration[0], + Distortion.ChromaticAberration[1], + Distortion.ChromaticAberration[2], + Distortion.ChromaticAberration[3]); + } + + Matrix4f texm(w, 0, 0, x, + 0, h, 0, y, + 0, 0, 0, 0, + 0, 0, 0, 1); + pPostProcessShader->SetUniform4x4f("Texm", texm); + + Matrix4f view(2, 0, 0, -1, + 0, 2, 0, -1, + 0, 0, 0, 0, + 0, 0, 0, 1); + + ShaderFill fill(pPostProcessShader); + fill.SetTexture(0, pSceneColorTex); + Render(&fill, pFullScreenVertexBuffer, NULL, view, 0, 4, Prim_TriangleStrip); +} + + +int GetNumMipLevels(int w, int h) +{ + int n = 1; + while(w > 1 || h > 1) + { + w >>= 1; + h >>= 1; + n++; + } + return n; +} + +void FilterRgba2x2(const UByte* src, int w, int h, UByte* dest) +{ + for(int j = 0; j < (h & ~1); j += 2) + { + const UByte* psrc = src + (w * j * 4); + UByte* pdest = dest + ((w >> 1) * (j >> 1) * 4); + + for(int i = 0; i < w >> 1; i++, psrc += 8, pdest += 4) + { + pdest[0] = (((int)psrc[0]) + psrc[4] + psrc[w * 4 + 0] + psrc[w * 4 + 4]) >> 2; + pdest[1] = (((int)psrc[1]) + psrc[5] + psrc[w * 4 + 1] + psrc[w * 4 + 5]) >> 2; + pdest[2] = (((int)psrc[2]) + psrc[6] + psrc[w * 4 + 2] + psrc[w * 4 + 6]) >> 2; + pdest[3] = (((int)psrc[3]) + psrc[7] + psrc[w * 4 + 3] + psrc[w * 4 + 7]) >> 2; + } + } +} + + +}} |