350 lines
8.0 KiB
C++
350 lines
8.0 KiB
C++
|
/*
|
||
|
|
* Copyright 2011-2013 Branimir Karadzic. All rights reserved.
|
||
|
|
* License: http://www.opensource.org/licenses/BSD-2-Clause
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "common.h"
|
||
|
|
|
||
|
|
#include <bgfx.h>
|
||
|
|
#include <bx/timer.h>
|
||
|
|
#include <bx/uint32_t.h>
|
||
|
|
#include "fpumath.h"
|
||
|
|
#include "imgui/imgui.h"
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
struct PosColorVertex
|
||
|
|
{
|
||
|
|
float m_x;
|
||
|
|
float m_y;
|
||
|
|
float m_z;
|
||
|
|
uint32_t m_abgr;
|
||
|
|
};
|
||
|
|
|
||
|
|
static bgfx::VertexDecl s_PosColorDecl;
|
||
|
|
|
||
|
|
static PosColorVertex s_cubeVertices[8] =
|
||
|
|
{
|
||
|
|
{-1.0f, 1.0f, 1.0f, 0xff000000 },
|
||
|
|
{ 1.0f, 1.0f, 1.0f, 0xff0000ff },
|
||
|
|
{-1.0f, -1.0f, 1.0f, 0xff00ff00 },
|
||
|
|
{ 1.0f, -1.0f, 1.0f, 0xff00ffff },
|
||
|
|
{-1.0f, 1.0f, -1.0f, 0xffff0000 },
|
||
|
|
{ 1.0f, 1.0f, -1.0f, 0xffff00ff },
|
||
|
|
{-1.0f, -1.0f, -1.0f, 0xffffff00 },
|
||
|
|
{ 1.0f, -1.0f, -1.0f, 0xffffffff },
|
||
|
|
};
|
||
|
|
|
||
|
|
static const uint16_t s_cubeIndices[36] =
|
||
|
|
{
|
||
|
|
0, 1, 2, // 0
|
||
|
|
1, 3, 2,
|
||
|
|
4, 6, 5, // 2
|
||
|
|
5, 6, 7,
|
||
|
|
0, 2, 4, // 4
|
||
|
|
4, 2, 6,
|
||
|
|
1, 5, 3, // 6
|
||
|
|
5, 7, 3,
|
||
|
|
0, 4, 1, // 8
|
||
|
|
4, 5, 1,
|
||
|
|
2, 3, 6, // 10
|
||
|
|
6, 3, 7,
|
||
|
|
};
|
||
|
|
|
||
|
|
static const char* s_shaderPath = NULL;
|
||
|
|
|
||
|
|
static void shaderFilePath(char* _out, const char* _name)
|
||
|
|
{
|
||
|
|
strcpy(_out, s_shaderPath);
|
||
|
|
strcat(_out, _name);
|
||
|
|
strcat(_out, ".bin");
|
||
|
|
}
|
||
|
|
|
||
|
|
long int fsize(FILE* _file)
|
||
|
|
{
|
||
|
|
long int pos = ftell(_file);
|
||
|
|
fseek(_file, 0L, SEEK_END);
|
||
|
|
long int size = ftell(_file);
|
||
|
|
fseek(_file, pos, SEEK_SET);
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const bgfx::Memory* load(const char* _filePath)
|
||
|
|
{
|
||
|
|
FILE* file = fopen(_filePath, "rb");
|
||
|
|
if (NULL != file)
|
||
|
|
{
|
||
|
|
uint32_t size = (uint32_t)fsize(file);
|
||
|
|
const bgfx::Memory* mem = bgfx::alloc(size+1);
|
||
|
|
size_t ignore = fread(mem->data, 1, size, file);
|
||
|
|
BX_UNUSED(ignore);
|
||
|
|
fclose(file);
|
||
|
|
mem->data[mem->size-1] = '\0';
|
||
|
|
return mem;
|
||
|
|
}
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const bgfx::Memory* loadShader(const char* _name)
|
||
|
|
{
|
||
|
|
char filePath[512];
|
||
|
|
shaderFilePath(filePath, _name);
|
||
|
|
return load(filePath);
|
||
|
|
}
|
||
|
|
|
||
|
|
int _main_(int /*_argc*/, char** /*_argv*/)
|
||
|
|
{
|
||
|
|
uint32_t width = 1280;
|
||
|
|
uint32_t height = 720;
|
||
|
|
uint32_t debug = BGFX_DEBUG_TEXT;
|
||
|
|
uint32_t reset = BGFX_RESET_NONE;
|
||
|
|
|
||
|
|
bgfx::init();
|
||
|
|
bgfx::reset(width, height, reset);
|
||
|
|
|
||
|
|
// Enable debug text.
|
||
|
|
bgfx::setDebug(debug);
|
||
|
|
|
||
|
|
// Set view 0 clear state.
|
||
|
|
bgfx::setViewClear(0
|
||
|
|
, BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
|
||
|
|
, 0x303030ff
|
||
|
|
, 1.0f
|
||
|
|
, 0
|
||
|
|
);
|
||
|
|
|
||
|
|
// Setup root path for binary shaders. Shader binaries are different
|
||
|
|
// for each renderer.
|
||
|
|
switch (bgfx::getRendererType() )
|
||
|
|
{
|
||
|
|
default:
|
||
|
|
case bgfx::RendererType::Direct3D9:
|
||
|
|
s_shaderPath = "shaders/dx9/";
|
||
|
|
break;
|
||
|
|
|
||
|
|
case bgfx::RendererType::Direct3D11:
|
||
|
|
s_shaderPath = "shaders/dx11/";
|
||
|
|
break;
|
||
|
|
|
||
|
|
case bgfx::RendererType::OpenGL:
|
||
|
|
s_shaderPath = "shaders/glsl/";
|
||
|
|
break;
|
||
|
|
|
||
|
|
case bgfx::RendererType::OpenGLES2:
|
||
|
|
case bgfx::RendererType::OpenGLES3:
|
||
|
|
s_shaderPath = "shaders/gles/";
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Create vertex stream declaration.
|
||
|
|
s_PosColorDecl.begin();
|
||
|
|
s_PosColorDecl.add(bgfx::Attrib::Position, 3, bgfx::AttribType::Float);
|
||
|
|
s_PosColorDecl.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true);
|
||
|
|
s_PosColorDecl.end();
|
||
|
|
|
||
|
|
const bgfx::Memory* mem;
|
||
|
|
|
||
|
|
// Create static vertex buffer.
|
||
|
|
mem = bgfx::makeRef(s_cubeVertices, sizeof(s_cubeVertices) );
|
||
|
|
bgfx::VertexBufferHandle vbh = bgfx::createVertexBuffer(mem, s_PosColorDecl);
|
||
|
|
|
||
|
|
// Create static index buffer.
|
||
|
|
mem = bgfx::makeRef(s_cubeIndices, sizeof(s_cubeIndices) );
|
||
|
|
bgfx::IndexBufferHandle ibh = bgfx::createIndexBuffer(mem);
|
||
|
|
|
||
|
|
// Load vertex shader.
|
||
|
|
mem = loadShader("vs_drawstress");
|
||
|
|
bgfx::VertexShaderHandle vsh = bgfx::createVertexShader(mem);
|
||
|
|
|
||
|
|
// Load fragment shader.
|
||
|
|
mem = loadShader("fs_drawstress");
|
||
|
|
bgfx::FragmentShaderHandle fsh = bgfx::createFragmentShader(mem);
|
||
|
|
|
||
|
|
// Create program from shaders.
|
||
|
|
bgfx::ProgramHandle program = bgfx::createProgram(vsh, fsh);
|
||
|
|
|
||
|
|
// We can destroy vertex and fragment shader here since
|
||
|
|
// their reference is kept inside bgfx after calling createProgram.
|
||
|
|
// Vertex and fragment shader will be destroyed once program is
|
||
|
|
// destroyed.
|
||
|
|
bgfx::destroyVertexShader(vsh);
|
||
|
|
bgfx::destroyFragmentShader(fsh);
|
||
|
|
|
||
|
|
FILE* file = fopen("font/droidsans.ttf", "rb");
|
||
|
|
uint32_t size = (uint32_t)fsize(file);
|
||
|
|
void* data = malloc(size);
|
||
|
|
size_t ignore = fread(data, 1, size, file);
|
||
|
|
BX_UNUSED(ignore);
|
||
|
|
fclose(file);
|
||
|
|
|
||
|
|
imguiCreate(data, size);
|
||
|
|
|
||
|
|
free(data);
|
||
|
|
|
||
|
|
bool autoAdjust = true;
|
||
|
|
int32_t scrollArea = 0;
|
||
|
|
int32_t dim = 16;
|
||
|
|
uint32_t transform = 0;
|
||
|
|
|
||
|
|
entry::MouseState mouseState;
|
||
|
|
|
||
|
|
int64_t timeOffset = bx::getHPCounter();
|
||
|
|
|
||
|
|
int64_t deltaTimeNs = 0;
|
||
|
|
int64_t deltaTimeAvgNs = 0;
|
||
|
|
int64_t numFrames = 0;
|
||
|
|
|
||
|
|
while (!entry::processEvents(width, height, debug, reset, &mouseState) )
|
||
|
|
{
|
||
|
|
int64_t now = bx::getHPCounter();
|
||
|
|
static int64_t last = now;
|
||
|
|
const int64_t frameTime = now - last;
|
||
|
|
last = now;
|
||
|
|
const double freq = double(bx::getHPFrequency() );
|
||
|
|
const double toMs = 1000.0/freq;
|
||
|
|
|
||
|
|
deltaTimeNs += frameTime*1000000/bx::getHPFrequency();
|
||
|
|
|
||
|
|
if (deltaTimeNs > 1000000)
|
||
|
|
{
|
||
|
|
deltaTimeAvgNs = deltaTimeNs / numFrames;
|
||
|
|
|
||
|
|
if (autoAdjust)
|
||
|
|
{
|
||
|
|
if (deltaTimeAvgNs < 1000000/65)
|
||
|
|
{
|
||
|
|
dim = bx::uint32_min(dim + 2, 40);
|
||
|
|
}
|
||
|
|
else if (deltaTimeAvgNs > 1000000/57)
|
||
|
|
{
|
||
|
|
dim = bx::uint32_max(dim - 1, 5);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
deltaTimeNs = deltaTimeAvgNs;
|
||
|
|
numFrames = 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
++numFrames;
|
||
|
|
}
|
||
|
|
|
||
|
|
float time = (float)( (now-timeOffset)/freq);
|
||
|
|
|
||
|
|
imguiBeginFrame(mouseState.m_mx
|
||
|
|
, mouseState.m_my
|
||
|
|
, (mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
|
||
|
|
| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
|
||
|
|
, 0
|
||
|
|
, width
|
||
|
|
, height
|
||
|
|
);
|
||
|
|
|
||
|
|
imguiBeginScrollArea("Settings", width - width / 4 - 10, 10, width / 4, height / 3, &scrollArea);
|
||
|
|
imguiSeparatorLine();
|
||
|
|
|
||
|
|
transform = imguiChoose(transform
|
||
|
|
, "Rotate"
|
||
|
|
, "No fragments"
|
||
|
|
);
|
||
|
|
imguiSeparatorLine();
|
||
|
|
|
||
|
|
if (imguiCheck("Auto adjust", autoAdjust) )
|
||
|
|
{
|
||
|
|
autoAdjust ^= true;
|
||
|
|
}
|
||
|
|
|
||
|
|
imguiSlider("Dim", &dim, 5, 40);
|
||
|
|
imguiLabel("Draw calls: %d", dim*dim*dim);
|
||
|
|
imguiLabel("Avg Delta Time (1 second) [ms]: %0.4f", deltaTimeAvgNs/1000.0f);
|
||
|
|
|
||
|
|
imguiEndScrollArea();
|
||
|
|
imguiEndFrame();
|
||
|
|
|
||
|
|
float at[3] = { 0.0f, 0.0f, 0.0f };
|
||
|
|
float eye[3] = { 0.0f, 0.0f, -35.0f };
|
||
|
|
|
||
|
|
float view[16];
|
||
|
|
float proj[16];
|
||
|
|
mtxLookAt(view, eye, at);
|
||
|
|
mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);
|
||
|
|
|
||
|
|
// Set view and projection matrix for view 0.
|
||
|
|
bgfx::setViewTransform(0, view, proj);
|
||
|
|
|
||
|
|
// Set view 0 default viewport.
|
||
|
|
bgfx::setViewRect(0, 0, 0, width, height);
|
||
|
|
|
||
|
|
// This dummy draw call is here to make sure that view 0 is cleared
|
||
|
|
// if no other draw calls are submitted to view 0.
|
||
|
|
bgfx::submit(0);
|
||
|
|
|
||
|
|
// Use debug font to print information about this example.
|
||
|
|
bgfx::dbgTextClear();
|
||
|
|
bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/xx-drawstress");
|
||
|
|
bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Draw stress, maximizing number of draw calls.");
|
||
|
|
bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
|
||
|
|
|
||
|
|
float mtxS[16];
|
||
|
|
const float scale = 0 == transform ? 0.25f : 0.0f;
|
||
|
|
mtxScale(mtxS, scale, scale, scale);
|
||
|
|
|
||
|
|
const float step = 0.6f;
|
||
|
|
float pos[3];
|
||
|
|
pos[0] = -step*dim / 2.0f;
|
||
|
|
pos[1] = -step*dim / 2.0f;
|
||
|
|
pos[2] = -15.0;
|
||
|
|
|
||
|
|
for (uint32_t zz = 0; zz < uint32_t(dim); ++zz)
|
||
|
|
{
|
||
|
|
for (uint32_t yy = 0; yy < uint32_t(dim); ++yy)
|
||
|
|
{
|
||
|
|
for (uint32_t xx = 0; xx < uint32_t(dim); ++xx)
|
||
|
|
{
|
||
|
|
float mtxR[16];
|
||
|
|
mtxRotateXYZ(mtxR, time + xx*0.21f, time + yy*0.37f, time + yy*0.13f);
|
||
|
|
|
||
|
|
float mtx[16];
|
||
|
|
mtxMul(mtx, mtxS, mtxR);
|
||
|
|
|
||
|
|
mtx[12] = pos[0] + float(xx)*step;
|
||
|
|
mtx[13] = pos[1] + float(yy)*step;
|
||
|
|
mtx[14] = pos[2] + float(zz)*step;
|
||
|
|
|
||
|
|
// Set model matrix for rendering.
|
||
|
|
bgfx::setTransform(mtx);
|
||
|
|
|
||
|
|
// Set vertex and fragment shaders.
|
||
|
|
bgfx::setProgram(program);
|
||
|
|
|
||
|
|
// Set vertex and index buffer.
|
||
|
|
bgfx::setVertexBuffer(vbh);
|
||
|
|
bgfx::setIndexBuffer(ibh);
|
||
|
|
|
||
|
|
// Set render states.
|
||
|
|
bgfx::setState(BGFX_STATE_DEFAULT);
|
||
|
|
|
||
|
|
// Submit primitive for rendering to view 0.
|
||
|
|
bgfx::submit(0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Advance to next frame. Rendering thread will be kicked to
|
||
|
|
// process submitted rendering primitives.
|
||
|
|
bgfx::frame();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Cleanup.
|
||
|
|
bgfx::destroyIndexBuffer(ibh);
|
||
|
|
bgfx::destroyVertexBuffer(vbh);
|
||
|
|
bgfx::destroyProgram(program);
|
||
|
|
|
||
|
|
// Shutdown bgfx.
|
||
|
|
bgfx::shutdown();
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|