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bk3d_glcommandlist.cpp
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bk3d_glcommandlist.cpp
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/*
* Copyright (c) 2016-2023, NVIDIA CORPORATION. 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.
*
* SPDX-FileCopyrightText: Copyright (c) 2016-2021 NVIDIA CORPORATION
* SPDX-License-Identifier: Apache-2.0
*/
#include <glm/gtc/type_ptr.hpp>
#define EXTERNSVCUI
#define WINDOWINERTIACAMERA_EXTERN
#define EMUCMDLIST_EXTERN
#include "gl_vk_bk3dthreaded.h"
#include "helper_fbo.h"
#include <nvgl/profiler_gl.hpp>
#define GRIDDEF 20
#define GRIDSZ 1.0f
#define CROSSSZ 0.01f
#ifdef _WIN32
#define DEBUGBREAK() DebugBreak()
#else
#define DEBUGBREAK() __builtin_trap()
#endif
namespace glcmdlist {
#include "gl_nv_commandlist_helpers.h"
//------------------------------------------------------------------------------
// Globals
//------------------------------------------------------------------------------
GLuint g_MaxBOSz = 200000;
int g_TokenBufferGrouping = 0;
//-----------------------------------------------------------------------------
// Shaders
//-----------------------------------------------------------------------------
static const char *s_glslv_mesh =
"#version 430\n"
"#extension GL_ARB_separate_shader_objects : enable\n"
"#extension GL_NV_command_list : enable\n"
"layout(std140,commandBindableNV,binding=" TOSTR(UBO_MATRIX) ") uniform matrixBuffer {\n"
" uniform mat4 mW;\n"
" uniform mat4 mVP;\n"
" vec3 eyePos;\n"
"} matrix;\n"
"layout(std140,commandBindableNV,binding=" TOSTR(UBO_MATRIXOBJ) ") uniform matrixObjBuffer {\n"
" uniform mat4 mO;\n"
"} object;\n"
"layout(location=0) in vec3 pos;\n"
"layout(location=1) in vec3 N;\n"
"\n"
"layout(location=1) out vec3 outN;\n"
"layout(location=2) out vec3 outWPos;\n"
"layout(location=3) out vec3 outEyePos;\n"
"out gl_PerVertex {\n"
" vec4 gl_Position;\n"
"};\n"
"void main()\n"
"{\n"
" outN = N.xzy;\n"
" vec4 wpos = matrix.mW * (object.mO * vec4(pos,1)); \n"
" gl_Position = matrix.mVP * wpos;\n"
" outWPos = wpos.xyz;\n"
" outEyePos = matrix.eyePos;\n"
"}\n"
;
static const char *s_glslf_mesh =
"#version 430\n"
"#extension GL_ARB_separate_shader_objects : enable\n"
"#extension GL_NV_command_list : enable\n"
"layout(std140,commandBindableNV,binding=" TOSTR(UBO_MATERIAL) ") uniform materialBuffer {\n"
" uniform vec3 diffuse;"
"} material;\n"
"layout(std140,commandBindableNV,binding=" TOSTR(UBO_LIGHT) ") uniform lightBuffer {\n"
" uniform vec3 dir;"
"} light;\n"
"layout(location=1) in vec3 N;\n"
"layout(location=2) in vec3 inWPos;\n"
"layout(location=3) in vec3 inEyePos;\n"
"layout(location=0,index=0) out vec4 outColor;\n"
"\n"
"vec3 Sky( vec3 ray )\n"
"{\n"
" return mix( vec3(.8), vec3(0), exp2(-(1.0/max(ray.y,.01))*vec3(.4,.6,1.0)) );\n"
"}\n"
"\n"
"mat2 mm2(in float a){float c = cos(a), s = sin(a);return mat2(c,-s,s,c);}\n"
"\n"
"vec3 Voronoi( vec3 pos )\n"
"{\n"
" vec3 d[8];\n"
" d[0] = vec3(0,0,0);\n"
" d[1] = vec3(1,0,0);\n"
" d[2] = vec3(0,1,0);\n"
" d[3] = vec3(1,1,0);\n"
" d[4] = vec3(0,0,1);\n"
" d[5] = vec3(1,0,1);\n"
" d[6] = vec3(0,1,1);\n"
" d[7] = vec3(1,1,1);\n"
" \n"
" const float maxDisplacement = .7; //tweak this to hide grid artefacts\n"
" \n"
" vec3 pf = floor(pos);\n"
"\n"
" const float phi = 1.61803398875;\n"
"\n"
" float closest = 12.0;\n"
" vec3 result;\n"
" for ( int i=0; i < 8; i++ )\n"
" {\n"
" vec3 v = (pf+d[i]);\n"
" vec3 r = fract(phi*v.yzx+17.*fract(v.zxy*phi)+v*v*.03);//Noise(ivec3(floor(pos+d[i])));\n"
" vec3 p = d[i] + maxDisplacement*(r.xyz-.5);\n"
" p -= fract(pos);\n"
" float lsq = dot(p,p);\n"
" if ( lsq < closest )\n"
" {\n"
" closest = lsq;\n"
" result = r;\n"
" }\n"
" }\n"
" return fract(result.xyz);//+result.www); // random colour\n"
"}\n"
"\n"
"vec3 shade( vec3 pos, vec3 norm, vec3 rayDir, vec3 lightDir )\n"
"{\n"
" vec3 paint = material.diffuse;\n"
"\n"
" vec3 norm2 = normalize(norm+.02*(Voronoi(pos*800.0)*2.0-1.0));\n"
" \n"
" if ( dot(norm2,rayDir) > 0.0 ) // we shouldn't see flecks that point away from us\n"
" norm2 -= 2.0*dot(norm2,rayDir)*rayDir;\n"
"\n"
"\n"
" // diffuse layer, reduce overall contrast\n"
" vec3 result = paint*.6*(pow(max(0.0,dot(norm,lightDir)),2.0)+.2);\n"
"\n"
" vec3 h = normalize( lightDir-rayDir );\n"
" vec3 s = pow(max(0.0,dot(h,norm2)),50.0)*10.0*vec3(1);\n"
"\n"
" float rdotn = dot(rayDir,norm2);\n"
" vec3 reflection = rayDir-2.0*rdotn*norm;\n"
" s += Sky( reflection );\n"
"\n"
" float f = pow(1.0+rdotn,5.0);\n"
" f = mix( .2, 1.0, f );\n"
" \n"
" result = mix(result,paint*s,f);\n"
" \n"
" // gloss layer\n"
" s = pow(max(0.0,dot(h,norm)),1000.0)*32.0*vec3(1);\n"
" \n"
" rdotn = dot(rayDir,norm);\n"
" reflection = rayDir-2.0*rdotn*norm;\n"
" \n"
" return result;\n"
"}\n"
"\n"
"void main()\n"
"{\n"
" vec3 lightDir = vec3(0, 0.707, 0.707);\n"
" vec3 ray = inWPos;\n"
" ray -= inEyePos;\n"
" ray = normalize(ray);\n"
" vec3 shaded = shade( inWPos, N, ray, lightDir );\n"
" outColor = vec4(shaded, 1);\n"
"}\n"
;
static const char* s_glslf_mesh_line =
"#version 430\n"
"#extension GL_ARB_separate_shader_objects : enable\n"
"#extension GL_NV_command_list : enable\n"
"layout(location=0) out vec4 outColor;\n"
"void main() {\n"
"\n"
" outColor = vec4(0.5,0.5,0.2,1);\n"
"}\n";
//-----------------------------------------------------------------------------
// Grid
//-----------------------------------------------------------------------------
static const char *g_glslv_grid =
"#version 430\n"
"#extension GL_ARB_separate_shader_objects : enable\n"
"#extension GL_NV_command_list : enable\n"
"layout(std140,commandBindableNV,binding=" TOSTR(UBO_MATRIX) ") uniform matrixBuffer {\n"
" uniform mat4 mW;\n"
" uniform mat4 mVP;\n"
" vec3 eyePos;\n"
"} matrix;\n"
"layout(location=0) in vec3 P;\n"
"out gl_PerVertex {\n"
" vec4 gl_Position;\n"
"};\n"
"void main() {\n"
" gl_Position = matrix.mVP * (matrix.mW * ( vec4(P, 1.0)));\n"
"}\n"
;
static const char* g_glslf_grid =
"#version 430\n"
"#extension GL_ARB_separate_shader_objects : enable\n"
"#extension GL_NV_command_list : enable\n"
"layout(location=0) out vec4 outColor;\n"
"void main() {\n"
" outColor = vec4(0.5,0.7,0.5,1);\n"
"}\n";
struct BufO
{
GLuint Id;
GLuint Sz;
GLuint64 Addr;
void release()
{
if(Id)
{
glMakeNamedBufferNonResidentNV(Id);
glDeleteBuffers(1, &Id);
}
memset(this, 0, sizeof(BufO));
}
};
BufO g_uboMatrix = {0, 0, 0};
BufO g_uboLight = {0, 0, 0};
static LightBuffer s_light = {glm::vec3(0, 0.707, 0.707)};
static GLuint s_vao = 0;
namespace grid {
static CommandStatesBatch command;
static TokenBuffer tokenBuffer;
GLSLShader shader;
static GLuint vbo;
static GLuint vboSz;
static GLuint64 vboAddr;
static GLuint vboCross;
static GLuint vboCrossSz;
static GLuint64 vboCrossAddr;
}; // namespace grid
TokenBuffer g_tokenBufferViewport;
class Bk3dModelCMDList;
//------------------------------------------------------------------------------
// Renderer: can be OpenGL or other
//------------------------------------------------------------------------------
class RendererCMDList : public Renderer
{
private:
bool m_bValid;
std::vector<Bk3dModelCMDList*> m_pModels;
bool initResourcesGrid();
bool deleteResourcesGrid();
int m_winSize[2];
GLuint m_depthTexture;
GLuint m_colorTexture;
GLuint m_FBO;
GLuint m_MSAA;
void fboResize(int w, int h);
void fboInitialize(int w, int h, int MSAA);
void fboFinish();
void fboMakeResourcesResident();
GLuint m_stateObjGridLine;
GLuint m_stateObjMeshTri;
GLuint m_stateObjMeshLine;
nvgl::ProfilerGL m_profilerGL;
nvh::Profiler::SectionID m_slot;
public:
RendererCMDList()
{
m_bValid = false;
g_renderers[g_numRenderers++] = this;
m_winSize[0] = 100;
m_winSize[1] = 100;
}
virtual ~RendererCMDList() {}
virtual const char* getName() { return "OpenGL Command-list"; }
virtual bool valid() { return m_bValid; };
virtual bool initGraphics(int w, int h, int MSAA);
virtual bool terminateGraphics();
virtual bool initThreadLocalVars(int threadId);
virtual void releaseThreadLocalVars();
virtual void destroyCommandBuffers(bool bAll);
virtual void waitForGPUIdle();
virtual bool attachModel(Bk3dModel* pModel);
virtual bool detachModels();
virtual bool initResourcesModel(Bk3dModel* pModel);
virtual bool releaseResourcesModel(Bk3dModel* pModel);
virtual bool buildPrimaryCmdBuffer();
virtual bool deleteCmdBuffers();
virtual bool buildCmdBufferModel(Bk3dModel* pModel, int bufIdx, int mstart, int mend);
virtual void consolidateCmdBuffersModel(Bk3dModel* pModel, int numCmdBuffers);
virtual bool deleteCmdBufferModel(Bk3dModel* pModel);
virtual bool updateForChangedRenderTarget(Bk3dModel* pModel);
virtual void displayStart(const glm::mat4& world, const InertiaCamera& camera, const glm::mat4& projection, bool bTimingGlitch);
virtual void displayEnd();
virtual void displayGrid(const InertiaCamera& camera, const glm::mat4 projection);
virtual void displayBk3dModel(Bk3dModel* pModel, const glm::mat4& cameraView, const glm::mat4 projection, unsigned char topologies);
virtual void blitToBackbuffer();
virtual void updateViewport(GLint x, GLint y, GLsizei width, GLsizei height);
virtual bool bFlipViewport() { return false; }
friend class Bk3dModelCMDList;
};
RendererCMDList s_renderer;
//------------------------------------------------------------------------------
// Class for Object (made of 1 to N meshes)
//------------------------------------------------------------------------------
class Bk3dModelCMDList
{
public:
static GLSLShader shader;
static GLSLShader shaderLine;
Bk3dModelCMDList(Bk3dModel* pGenericModel);
~Bk3dModelCMDList();
private:
Bk3dModel* m_pGenericModel;
int m_numUsedCmdBuffers;
CommandStatesBatch m_commandModel2[MAXCMDBUFFERS];
std::string m_tokenBufferModel2[MAXCMDBUFFERS]; // contains the commands to send to the GPU for setup and draw
CommandStatesBatch m_commandModel; // used to gather the GPU pointers of a single batch and where states/fbos do change
TokenBuffer m_tokenBufferModel; // contains the commands to send to the GPU for setup and draw
std::vector<BufO> m_ObjVBOs;
std::vector<BufO> m_ObjEBOs;
BufO m_uboObjectMatrices;
BufO m_uboMaterial;
GLuint m_commandList; // the list containing the command buffer(s)
//-----------------------------------------------------------------------------
// Store state objects according to what was changed while building the mesh
// for now: only one argument. But could have more...
//-----------------------------------------------------------------------------
struct States
{
GLenum topology;
//GLuint primRestartIndex;
// we should have more comparison on attribute stride, offset...
};
struct StateLess
{
bool operator()(const States& _Left, const States& _Right) const
{
// check primRestartIndex, too
return (_Left.topology < _Right.topology);
}
};
std::map<States, GLuint, StateLess> m_glStates;
public:
void releaseState(GLuint s);
bool deleteCommandListData();
GLenum topologyWithoutStrips(GLenum topologyGL);
GLuint findStateOrCreate(bk3d::Mesh* pMesh, bk3d::PrimGroup* pPG);
bool buildCmdBuffer(RendererCMDList* pRenderer, int bufIdx, int mstart, int mend);
void init_command_list();
void update_fbo_target(GLuint fbo);
void consolidateCmdBuffers(int numCmdBuffers);
bool initResourcesObject();
bool deleteResourcesObject();
void displayObject(Renderer* pRenderer, const glm::mat4& cameraView, const glm::mat4 projection, unsigned char topologies);
}; //Class Bk3dModelCMDList
GLSLShader Bk3dModelCMDList::shader;
GLSLShader Bk3dModelCMDList::shaderLine;
//------------------------------------------------------------------------------
// FBO FBO FBO FBO FBO FBO FBO FBO FBO FBO FBO
//------------------------------------------------------------------------------
void RendererCMDList::fboResize(int w, int h)
{
m_winSize[0] = w;
m_winSize[1] = h;
if(m_depthTexture)
{
texture::deleteTexture(m_depthTexture);
m_depthTexture = 0;
}
if(m_colorTexture)
texture::deleteTexture(m_colorTexture);
if(m_FBO)
{
fbo::detachColorTexture(m_FBO, 0, m_MSAA);
fbo::detachDSTTexture(m_FBO, m_MSAA);
}
// initialize color texture
m_colorTexture = texture::createRGBA8(w, h, m_MSAA, 0);
fbo::attachTexture2D(m_FBO, m_colorTexture, 0, m_MSAA);
m_depthTexture = texture::createDST(w, h, m_MSAA, 0);
fbo::attachDSTTexture2D(m_FBO, m_depthTexture, m_MSAA);
fbo::CheckStatus();
}
void RendererCMDList::fboInitialize(int w, int h, int MSAA)
{
m_winSize[0] = w;
m_winSize[1] = h;
m_MSAA = MSAA;
m_FBO = fbo::create();
m_colorTexture = texture::createRGBA8(w, h, MSAA, 0);
fbo::attachTexture2D(m_FBO, m_colorTexture, 0, MSAA);
m_depthTexture = texture::createDST(w, h, MSAA, 0);
fbo::attachDSTTexture2D(m_FBO, m_depthTexture, MSAA);
fbo::CheckStatus();
}
void RendererCMDList::fboFinish()
{
if(m_depthTexture)
{
texture::deleteTexture(m_depthTexture);
m_depthTexture = 0;
}
if(m_colorTexture)
{
texture::deleteTexture(m_colorTexture);
m_colorTexture = 0;
}
if(m_FBO)
{
fbo::detachColorTexture(m_FBO, 0, m_MSAA);
fbo::detachDSTTexture(m_FBO, m_MSAA);
m_FBO = 0;
}
fbo::bind(0);
fbo::deleteFBO(m_FBO);
}
void RendererCMDList::fboMakeResourcesResident()
{
GLuint64 handle;
handle = glGetTextureHandleARB(m_colorTexture);
glMakeTextureHandleResidentARB(handle);
handle = glGetTextureHandleARB(m_depthTexture);
glMakeTextureHandleResidentARB(handle);
}
//------------------------------------------------------------------------------
// cleanup commandList for the Grid
//------------------------------------------------------------------------------
bool RendererCMDList::deleteResourcesGrid()
{
if(grid::vbo)
{
glMakeNamedBufferNonResidentNV(grid::vbo);
glDeleteBuffers(1, &grid::vbo);
grid::vbo = 0;
grid::vboSz = 0;
grid::vboAddr = 0;
}
if(grid::vboCross)
{
glMakeNamedBufferNonResidentNV(grid::vboCross);
glDeleteBuffers(1, &grid::vboCross);
grid::vboCross = 0;
grid::vboCrossSz = 0;
grid::vboCrossAddr = 0;
}
return true;
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::initResourcesGrid()
{
deleteResourcesGrid();
//
// Grid floor
//
glCreateBuffers(1, &grid::vbo);
glm::vec3* data = new glm::vec3[GRIDDEF * 4];
glm::vec3* p = data;
int j = 0;
for(int i = 0; i < GRIDDEF; i++)
{
*(p++) = glm::vec3(-GRIDSZ, 0.0, GRIDSZ * (-1.0f + 2.0f * (float)i / (float)GRIDDEF));
*(p++) = glm::vec3(GRIDSZ * (1.0f - 2.0f / (float)GRIDDEF), 0.0, GRIDSZ * (-1.0f + 2.0f * (float)i / (float)GRIDDEF));
*(p++) = glm::vec3(GRIDSZ * (-1.0f + 2.0f * (float)i / (float)GRIDDEF), 0.0, -GRIDSZ);
*(p++) = glm::vec3(GRIDSZ * (-1.0f + 2.0f * (float)i / (float)GRIDDEF), 0.0, GRIDSZ * (1.0f - 2.0f / (float)GRIDDEF));
}
grid::vboSz = sizeof(glm::vec3) * GRIDDEF * 4;
glNamedBufferData(grid::vbo, grid::vboSz, glm::value_ptr(data[0]), GL_STATIC_DRAW);
// make the buffer resident and get its pointer
glGetNamedBufferParameterui64vNV(grid::vbo, GL_BUFFER_GPU_ADDRESS_NV, &grid::vboAddr);
glMakeNamedBufferResidentNV(grid::vbo, GL_READ_ONLY);
delete[] data;
//
// Target Cross
//
glCreateBuffers(1, &grid::vboCross);
glm::vec3 crossVtx[6] = {
glm::vec3(-CROSSSZ, 0.0f, 0.0f), glm::vec3(CROSSSZ, 0.0f, 0.0f), glm::vec3(0.0f, -CROSSSZ, 0.0f),
glm::vec3(0.0f, CROSSSZ, 0.0f), glm::vec3(0.0f, 0.0f, -CROSSSZ), glm::vec3(0.0f, 0.0f, CROSSSZ),
};
grid::vboCrossSz = sizeof(glm::vec3) * 6;
glNamedBufferData(grid::vboCross, grid::vboCrossSz, glm::value_ptr(crossVtx[0]), GL_STATIC_DRAW);
// make the buffer resident and get its pointer
glGetNamedBufferParameterui64vNV(grid::vboCross, GL_BUFFER_GPU_ADDRESS_NV, &grid::vboCrossAddr);
glMakeNamedBufferResidentNV(grid::vboCross, GL_READ_WRITE);
return true;
}
//------------------------------------------------------------------------------
// cleanup commandList for the Grid
//------------------------------------------------------------------------------
void cleanTokenBufferGrid()
{
glDeleteBuffers(1, &grid::tokenBuffer.bufferID);
grid::tokenBuffer.bufferID = 0;
grid::tokenBuffer.bufferAddr = 0;
grid::tokenBuffer.data.clear();
grid::command.release();
}
//------------------------------------------------------------------------------
// delete commandList for general stuff (Grid...)
//------------------------------------------------------------------------------
bool RendererCMDList::deleteCmdBuffers()
{
// TODO!
return true;
}
//------------------------------------------------------------------------------
// build commandList for general stuff (Grid...)
//------------------------------------------------------------------------------
bool RendererCMDList::buildPrimaryCmdBuffer()
{
cleanTokenBufferGrid();
//
// build address command for attribute #0
// - assign UBO addresses to uniform index for a given shader stage
// - assign a VBO address to attribute 0 (only one needed here)
// - issue draw commands
//
std::string data = buildUniformAddressCommand(UBO_MATRIX, g_uboMatrix.Addr, g_uboMatrix.Sz, STAGE_VERTEX);
data += buildAttributeAddressCommand(0, grid::vboAddr, grid::vboSz);
data += buildDrawArraysCommand(GL_LINES, GRIDDEF * 4);
//
// build another drawcall for the target cross
//
data += buildLineWidthCommand(1.0); //m_fboBox.getSSFactor());
data += buildAttributeAddressCommand(0, grid::vboCrossAddr, grid::vboCrossSz);
data += buildDrawArraysCommand(GL_LINES, 6);
grid::tokenBuffer.data = data; // token buffer containing commands
//
// Generate the token buffer in which we copy tokenBuffer.data
//
glCreateBuffers(1, &grid::tokenBuffer.bufferID);
glNamedBufferData(grid::tokenBuffer.bufferID, data.size(), &data[0], GL_STATIC_DRAW);
glGetNamedBufferParameterui64vNV(grid::tokenBuffer.bufferID, GL_BUFFER_GPU_ADDRESS_NV, &grid::tokenBuffer.bufferAddr);
glMakeNamedBufferResidentNV(grid::tokenBuffer.bufferID, GL_READ_WRITE);
//
// Build the tables for the command-state batch
//
// token buffer for the viewport setting
grid::command.pushBatch(m_stateObjGridLine, m_FBO, // m_fboBox.GetFBO(),
g_tokenBufferViewport.bufferAddr, &g_tokenBufferViewport.data[0], g_tokenBufferViewport.data.size());
// token buffer for drawing the grid
grid::command.pushBatch(m_stateObjGridLine, m_FBO, // m_fboBox.GetFBO(),
grid::tokenBuffer.bufferAddr, &grid::tokenBuffer.data[0], grid::tokenBuffer.data.size());
LOGI("Token buffer created for Grid\n");
glDisableClientState(GL_VERTEX_ATTRIB_ARRAY_UNIFIED_NV);
glDisableClientState(GL_ELEMENT_ARRAY_UNIFIED_NV);
glDisableClientState(GL_UNIFORM_BUFFER_UNIFIED_NV);
return true;
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
void RendererCMDList::displayStart(const glm::mat4& world, const InertiaCamera& camera, const glm::mat4& projection, bool bTimingGlitch)
{
m_slot = m_profilerGL.beginSection("scene");
glBindFramebuffer(GL_FRAMEBUFFER, m_FBO);
glEnable(GL_MULTISAMPLE);
glViewport(0, 0, m_winSize[0], m_winSize[1]);
float r = 0.0f; //bTimingGlitch ? 1.0f : 0.0f;
glClearColor(r, 0.1f, 0.15f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
}
void RendererCMDList::displayEnd()
{
m_profilerGL.endSection(m_slot);
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
void RendererCMDList::blitToBackbuffer()
{
const nvgl::ProfilerGL::Section profile(m_profilerGL, "blitToBackbuffer");
glBindFramebuffer(GL_READ_FRAMEBUFFER, m_FBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBlitFramebuffer(0, 0, m_winSize[0], m_winSize[1], 0, 0, m_winSize[0], m_winSize[1], GL_COLOR_BUFFER_BIT, GL_NEAREST);
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
void RendererCMDList::displayGrid(const InertiaCamera& camera, const glm::mat4 projection)
{
const nvgl::ProfilerGL::Section profile(m_profilerGL, "display.Grid");
//
// Update what is inside buffers
//
g_globalMatrices.mVP = projection * camera.m4_view;
g_globalMatrices.mW = glm::mat4(1);
glNamedBufferSubData(g_uboMatrix.Id, 0, sizeof(g_globalMatrices), &g_globalMatrices);
//
// The cross vertex change is an example on how command-list are compatible with changing
// what is inside the vertex buffers. VBOs are outside of the token buffers...
//
const glm::vec3& p = camera.curFocusPos;
glm::vec3 crossVtx[6] = {
glm::vec3(p.x - CROSSSZ, p.y, p.z), glm::vec3(p.x + CROSSSZ, p.y, p.z), glm::vec3(p.x, p.y - CROSSSZ, p.z),
glm::vec3(p.x, p.y + CROSSSZ, p.z), glm::vec3(p.x, p.y, p.z - CROSSSZ), glm::vec3(p.x, p.y, p.z + CROSSSZ),
};
glNamedBufferSubData(grid::vboCross, 0, sizeof(glm::vec3) * 6, crossVtx);
//
// execute the commands from the token buffer
//
{
//
// real Command-list's Token buffer with states execution
//
glDrawCommandsStatesAddressNV(&grid::command.dataGPUPtrs[0], &grid::command.sizes[0], &grid::command.stateGroups[0],
&grid::command.fbos[0], int(grid::command.numItems));
}
return;
}
//------------------------------------------------------------------------------
// this is an example of creating a piece of token buffer that would be put
// as a header before every single glDrawCommandsStatesAddressNV so that
// proper view setup (viewport) get properly done without relying on any
// typical OpenGL command.
// this approach is good avoid messing with OpenGL state machine and later could
// prevent extra driver validation
//------------------------------------------------------------------------------
void RendererCMDList::updateViewport(GLint x, GLint y, GLsizei width, GLsizei height)
{
m_winSize[0] = width;
m_winSize[1] = height;
fboResize(width, height);
fboMakeResourcesResident();
// could have way more commands here...
// ...
if(g_tokenBufferViewport.bufferAddr == 0)
{
// first time: create
g_tokenBufferViewport.data = buildViewportCommand(x, y, width, height);
g_tokenBufferViewport.data += buildLineWidthCommand(1.0);
glCreateBuffers(1, &g_tokenBufferViewport.bufferID);
glNamedBufferData(g_tokenBufferViewport.bufferID, g_tokenBufferViewport.data.size(), &g_tokenBufferViewport.data[0], GL_STATIC_DRAW);
glGetNamedBufferParameterui64vNV(g_tokenBufferViewport.bufferID, GL_BUFFER_GPU_ADDRESS_NV, &g_tokenBufferViewport.bufferAddr);
glMakeNamedBufferResidentNV(g_tokenBufferViewport.bufferID, GL_READ_WRITE);
}
else
{
// change arguments in the token buffer: better keep the same system memory pointer, too:
// CPU system memory used by the command-list compilation
// this is a simple use-case here: only one token cmd with related structure...
//
Token_Viewport* dc = (Token_Viewport*)&g_tokenBufferViewport.data[0];
dc->cmd.x = x;
dc->cmd.y = y;
dc->cmd.width = width;
dc->cmd.height = height;
Token_LineWidth* lw = (Token_LineWidth*)(dc + 1);
lw->cmd.lineWidth = 1.0;
//
// just update. Offset is always 0 in our simple case
glNamedBufferSubData(g_tokenBufferViewport.bufferID, 0 /*offset*/, g_tokenBufferViewport.data.size(),
&g_tokenBufferViewport.data[0]);
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
buildPrimaryCmdBuffer();
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::initGraphics(int w, int h, int MSAA)
{
//
// some offscreen buffer
//
fboInitialize(w, h, MSAA);
fboMakeResourcesResident();
//
// Check mandatory extensions
//
if(!has_GL_NV_command_list)
{
LOGE("Failed to initialize NVIDIA command-list\n");
return false;
}
if(!has_GL_NV_vertex_buffer_unified_memory)
{
LOGE("Failed to initialize NVIDIA Bindless graphics\n");
return false;
}
initTokenInternals();
//
// Shader compilation
//
if(!grid::shader.addVertexShaderFromString(g_glslv_grid))
return false;
if(!grid::shader.addFragmentShaderFromString(g_glslf_grid))
return false;
if(!grid::shader.link())
return false;
if(!Bk3dModelCMDList::shader.addVertexShaderFromString(s_glslv_mesh))
return false;
if(!Bk3dModelCMDList::shader.addFragmentShaderFromString(s_glslf_mesh))
return false;
if(!Bk3dModelCMDList::shader.link())
return false;
if(!Bk3dModelCMDList::shaderLine.addVertexShaderFromString(s_glslv_mesh))
return false;
if(!Bk3dModelCMDList::shaderLine.addFragmentShaderFromString(s_glslf_mesh_line))
return false;
if(!Bk3dModelCMDList::shaderLine.link())
return false;
//
// Create some UBO for later share their 64 bits
//
glCreateBuffers(1, &g_uboMatrix.Id);
g_uboMatrix.Sz = sizeof(MatrixBufferGlobal);
glNamedBufferData(g_uboMatrix.Id, g_uboMatrix.Sz, &g_globalMatrices, GL_STREAM_DRAW);
glGetNamedBufferParameterui64vNV(g_uboMatrix.Id, GL_BUFFER_GPU_ADDRESS_NV, (GLuint64EXT*)&g_uboMatrix.Addr);
glMakeNamedBufferResidentNV(g_uboMatrix.Id, GL_READ_WRITE);
//glBindBufferBase(GL_UNIFORM_BUFFER,UBO_MATRIX, g_uboMatrix.Id);
//
// Trivial Light info...
//
glCreateBuffers(1, &g_uboLight.Id);
g_uboLight.Sz = sizeof(LightBuffer);
glNamedBufferData(g_uboLight.Id, g_uboLight.Sz, &s_light, GL_STREAM_DRAW);
glGetNamedBufferParameterui64vNV(g_uboLight.Id, GL_BUFFER_GPU_ADDRESS_NV, (GLuint64EXT*)&g_uboLight.Addr);
glMakeNamedBufferResidentNV(g_uboLight.Id, GL_READ_WRITE);
//glBindBufferBase(GL_UNIFORM_BUFFER,UBO_LIGHT, g_uboLight.Id);
//
// Misc OGL setup
//
glGenVertexArrays(1, &s_vao);
glBindVertexArray(s_vao);
//
// Grid
//
if(!initResourcesGrid())
return false;
LOGOK("Initialized renderer %s\n", getName());
//
// state objects
// assume that the state machine is correctly setup from there.
// best would be to exhaustively reset OpenGL states...
//
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glDisable(GL_CULL_FACE);
glClearColor(0.0f, 0.1f, 0.15f, 1.0f);
glGenVertexArrays(1, &s_vao);
glBindVertexArray(s_vao);
glBindBufferBase(GL_UNIFORM_BUFFER, UBO_MATRIX, 0);
glBindBufferBase(GL_UNIFORM_BUFFER, UBO_LIGHT, 0);
glBindBufferBase(GL_UNIFORM_BUFFER, UBO_MATRIXOBJ, 0);
glEnableClientState(GL_VERTEX_ATTRIB_ARRAY_UNIFIED_NV);
glEnableClientState(GL_ELEMENT_ARRAY_UNIFIED_NV);
glEnableClientState(GL_UNIFORM_BUFFER_UNIFIED_NV);
//
// We must capture states in a FBO configuration that will be at least compatible with
// when we'll use these objects (attachments; formats... *not* sizes)
glBindFramebuffer(GL_FRAMEBUFFER, m_FBO);
//
// states - Redundant settings on purpose to be explicit
//
{
glCreateStatesNV(1, &m_stateObjMeshTri);
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(1.0, 1.0);
//
// Warning: simple approach for the sample: we KNOW that the models won't have other
// attribute configuration (vec3 pos+ vec3 normal)
// if the project had many kind of combinations, many state objects should be created
//
glEnableVertexAttribArray(0);
glBindVertexBuffer(0, 0, 0, 24);
glVertexAttribFormat(0, 3, GL_FLOAT, GL_FALSE, 0);
glEnableVertexAttribArray(1);
glBindVertexBuffer(1, 0, 0, 24);
glVertexAttribFormat(1, 3, GL_FLOAT, GL_FALSE, 12);
for(int a = 2; a < 16; a++)
glDisableVertexAttribArray(a);
Bk3dModelCMDList::shader.bindShader();
glStateCaptureNV(m_stateObjMeshTri, GL_TRIANGLES);
}
//
// states for lines
//
{
Bk3dModelCMDList::shaderLine.bindShader();
glDisable(GL_POLYGON_OFFSET_FILL);
//
// Warning: simple approach for the sample: we KNOW that the models won't have other
// attribute configuration (vec3 pos+ vec3 normal)
// if the project had many kind of combinations, many state objects should be created
//
glEnableVertexAttribArray(0);
glBindVertexBuffer(0, 0, 0, 12);
glVertexAttribFormat(0, 3, GL_FLOAT, GL_FALSE, 0);
for(int a = 1; a < 16; a++)
glDisableVertexAttribArray(a);
glCreateStatesNV(1, &m_stateObjMeshLine);
glStateCaptureNV(m_stateObjMeshLine, GL_LINES);
}
glDisableClientState(GL_VERTEX_ATTRIB_ARRAY_UNIFIED_NV);
glDisableClientState(GL_ELEMENT_ARRAY_UNIFIED_NV);
glDisableClientState(GL_UNIFORM_BUFFER_UNIFIED_NV);
m_bValid = true;
{
cleanTokenBufferGrid();
grid::shader.bindShader();
//
// Again here we know that the grid has a specific vertex Input format
//
glEnableVertexAttribArray(0);
glBindVertexBuffer(0, grid::vbo, 0, sizeof(glm::vec3));
glVertexAttribFormat(0, 3, GL_FLOAT, GL_FALSE, 0);
for(int i = 1; i < 16; i++)
glDisableVertexAttribArray(i);
glEnableClientState(GL_VERTEX_ATTRIB_ARRAY_UNIFIED_NV);
glDisableClientState(GL_ELEMENT_ARRAY_UNIFIED_NV);
glEnableClientState(GL_UNIFORM_BUFFER_UNIFIED_NV);
//glViewport(0,0,1280,720);
glCreateStatesNV(1, &m_stateObjGridLine);
glStateCaptureNV(m_stateObjGridLine, GL_LINES);
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
//
// OpenGL timers
//
m_profilerGL = nvgl::ProfilerGL(&g_profiler);
m_profilerGL.init();
return true;
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::terminateGraphics()
{
fboFinish();
detachModels();
deleteResourcesGrid();
cleanTokenBufferGrid();
glDeleteVertexArrays(1, &s_vao);
s_vao = 0;
g_uboLight.release();
g_uboMatrix.release();
grid::shader.cleanup();
Bk3dModelCMDList::shader.cleanup();
Bk3dModelCMDList::shaderLine.cleanup();
m_profilerGL.deinit();
m_bValid = false;
glDisableClientState(GL_VERTEX_ATTRIB_ARRAY_UNIFIED_NV);
glDisableClientState(GL_ELEMENT_ARRAY_UNIFIED_NV);
glDisableClientState(GL_UNIFORM_BUFFER_UNIFIED_NV);
glDisableClientState(GL_ELEMENT_ARRAY_UNIFIED_NV);
for(int a = 2; a < 16; a++)
glDisableVertexAttribArray(a);
return true;
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::attachModel(Bk3dModel* pGenericModel)
{
Bk3dModelCMDList* pModel = new Bk3dModelCMDList(pGenericModel);
m_pModels.push_back(pModel); // keep track of allocated stuff
return true;
}
bool RendererCMDList::detachModels()
{
bool b = true;
for(int i = 0; i < m_pModels.size(); i++)
{
if(!m_pModels[i]->deleteCommandListData())
b = false;
if(!m_pModels[i]->deleteResourcesObject())
b = false;
delete m_pModels[i];
}
m_pModels.clear();
return b;
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::initResourcesModel(Bk3dModel* pGenericModel)
{
return ((Bk3dModelCMDList*)pGenericModel->m_pRendererData)->initResourcesObject();
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::releaseResourcesModel(Bk3dModel* pModel)
{
return true;
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::buildCmdBufferModel(Bk3dModel* pModel, int bufIdx, int mstart, int mend)
{
return ((Bk3dModelCMDList*)pModel->m_pRendererData)->buildCmdBuffer(this, bufIdx, mstart, mend);
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
void RendererCMDList::consolidateCmdBuffersModel(Bk3dModel* pModel, int numCmdBuffers)
{
((Bk3dModelCMDList*)pModel->m_pRendererData)->consolidateCmdBuffers(numCmdBuffers);
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::deleteCmdBufferModel(Bk3dModel* pGenericModel)
{
return ((Bk3dModelCMDList*)pGenericModel->m_pRendererData)->deleteCommandListData();
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
bool RendererCMDList::updateForChangedRenderTarget(Bk3dModel* pModel)
{
return false;
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
void RendererCMDList::displayBk3dModel(Bk3dModel* pGenericModel, const glm::mat4& cameraView, const glm::mat4 projection, unsigned char topologies)
{
const nvgl::ProfilerGL::Section profile(m_profilerGL, "display.Bk3dModel");
return ((Bk3dModelCMDList*)pGenericModel->m_pRendererData)->displayObject(this, cameraView, projection, topologies);
}
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
Bk3dModelCMDList::Bk3dModelCMDList(Bk3dModel* pGenericModel)
{
m_commandList = 0;
m_tokenBufferModel.bufferID = 0;
memset(&m_uboObjectMatrices, 0, sizeof(BufO));
memset(&m_uboMaterial, 0, sizeof(BufO));
// keep track of the stuff related to this renderer
pGenericModel->m_pRendererData = this;