diff options
Diffstat (limited to '3rdparty/bgfx/examples/05-instancing/instancing.cpp')
-rw-r--r-- | 3rdparty/bgfx/examples/05-instancing/instancing.cpp | 91 |
1 files changed, 59 insertions, 32 deletions
diff --git a/3rdparty/bgfx/examples/05-instancing/instancing.cpp b/3rdparty/bgfx/examples/05-instancing/instancing.cpp index 834969ea02e..c295a9813c5 100644 --- a/3rdparty/bgfx/examples/05-instancing/instancing.cpp +++ b/3rdparty/bgfx/examples/05-instancing/instancing.cpp @@ -5,6 +5,10 @@ #include "common.h" #include "bgfx_utils.h" +#include "imgui/imgui.h" + +namespace +{ struct PosColorVertex { @@ -57,13 +61,19 @@ static const uint16_t s_cubeIndices[36] = class ExampleInstancing : public entry::AppI { - void init(int _argc, char** _argv) BX_OVERRIDE +public: + ExampleInstancing(const char* _name, const char* _description) + : entry::AppI(_name, _description) + { + } + + void init(int32_t _argc, const char* const* _argv, uint32_t _width, uint32_t _height) override { Args args(_argc, _argv); - m_width = 1280; - m_height = 720; - m_debug = BGFX_DEBUG_TEXT; + m_width = _width; + m_height = _height; + m_debug = BGFX_DEBUG_NONE; m_reset = BGFX_RESET_VSYNC; bgfx::init(args.m_type, args.m_pciId); @@ -98,14 +108,18 @@ class ExampleInstancing : public entry::AppI m_program = loadProgram("vs_instancing", "fs_instancing"); m_timeOffset = bx::getHPCounter(); + + imguiCreate(); } - int shutdown() BX_OVERRIDE + int shutdown() override { + imguiDestroy(); + // Cleanup. - bgfx::destroyIndexBuffer(m_ibh); - bgfx::destroyVertexBuffer(m_vbh); - bgfx::destroyProgram(m_program); + bgfx::destroy(m_ibh); + bgfx::destroy(m_vbh); + bgfx::destroy(m_program); // Shutdown bgfx. bgfx::shutdown(); @@ -113,10 +127,24 @@ class ExampleInstancing : public entry::AppI return 0; } - bool update() BX_OVERRIDE + bool update() override { - if (!entry::processEvents(m_width, m_height, m_debug, m_reset) ) + if (!entry::processEvents(m_width, m_height, m_debug, m_reset, &m_mouseState) ) { + imguiBeginFrame(m_mouseState.m_mx + , m_mouseState.m_my + , (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0) + | (m_mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0) + | (m_mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0) + , m_mouseState.m_mz + , uint16_t(m_width) + , uint16_t(m_height) + ); + + showExampleDialog(this); + + imguiEndFrame(); + // Set view 0 default viewport. bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) ); @@ -124,19 +152,7 @@ class ExampleInstancing : public entry::AppI // if no other draw calls are submitted to view 0. bgfx::touch(0); - 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; - float time = (float)( (now - m_timeOffset)/double(bx::getHPFrequency() ) ); - - // Use debug font to print information about this example. - bgfx::dbgTextClear(); - bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/05-instancing"); - bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Geometry instancing."); - bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs); + float time = (float)( (bx::getHPCounter() - m_timeOffset)/double(bx::getHPFrequency() ) ); // Get renderer capabilities info. const bgfx::Caps* caps = bgfx::getCaps(); @@ -147,7 +163,7 @@ class ExampleInstancing : public entry::AppI // When instancing is not supported by GPU, implement alternative // code path that doesn't use instancing. bool blink = uint32_t(time*3.0f)&1; - bgfx::dbgTextPrintf(0, 5, blink ? 0x1f : 0x01, " Instancing is not supported by GPU. "); + bgfx::dbgTextPrintf(0, 0, blink ? 0x1f : 0x01, " Instancing is not supported by GPU. "); } else { @@ -181,16 +197,22 @@ class ExampleInstancing : public entry::AppI bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) ); } + // 80 bytes stride = 64 bytes for 4x4 matrix + 16 bytes for RGBA color. const uint16_t instanceStride = 80; - const bgfx::InstanceDataBuffer* idb = bgfx::allocInstanceDataBuffer(121, instanceStride); - if (NULL != idb) + // 11x11 cubes + const uint32_t numInstances = 121; + + if (numInstances == bgfx::getAvailInstanceDataBuffer(numInstances, instanceStride) ) { - uint8_t* data = idb->data; + bgfx::InstanceDataBuffer idb; + bgfx::allocInstanceDataBuffer(&idb, numInstances, instanceStride); + + uint8_t* data = idb.data; // Write instance data for 11x11 cubes. - for (uint32_t yy = 0, numInstances = 0; yy < 11 && numInstances < idb->num; ++yy) + for (uint32_t yy = 0; yy < 11; ++yy) { - for (uint32_t xx = 0; xx < 11 && numInstances < idb->num; ++xx, ++numInstances) + for (uint32_t xx = 0; xx < 11; ++xx) { float* mtx = (float*)data; bx::mtxRotateXY(mtx, time + xx*0.21f, time + yy*0.37f); @@ -209,11 +231,11 @@ class ExampleInstancing : public entry::AppI } // Set vertex and index buffer. - bgfx::setVertexBuffer(m_vbh); + bgfx::setVertexBuffer(0, m_vbh); bgfx::setIndexBuffer(m_ibh); // Set instance data buffer. - bgfx::setInstanceDataBuffer(idb); + bgfx::setInstanceDataBuffer(&idb); // Set render states. bgfx::setState(BGFX_STATE_DEFAULT); @@ -226,12 +248,15 @@ class ExampleInstancing : public entry::AppI // Advance to next frame. Rendering thread will be kicked to // process submitted rendering primitives. bgfx::frame(); + return true; } return false; } + entry::MouseState m_mouseState; + uint32_t m_width; uint32_t m_height; uint32_t m_debug; @@ -243,4 +268,6 @@ class ExampleInstancing : public entry::AppI int64_t m_timeOffset; }; -ENTRY_IMPLEMENT_MAIN(ExampleInstancing); +} // namespace + +ENTRY_IMPLEMENT_MAIN(ExampleInstancing, "05-instancing", "Geometry instancing."); |