138 lines
3.4 KiB
C++
138 lines
3.4 KiB
C++
/*
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* Copyright 2011-2019 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
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*/
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#include <bx/uint32_t.h>
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#include "common.h"
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#include "bgfx_utils.h"
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#include "logo.h"
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#include "imgui/imgui.h"
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namespace
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{
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class ExampleHelloWorld : public entry::AppI
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{
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public:
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ExampleHelloWorld(const char* _name, const char* _description, const char* _url)
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: entry::AppI(_name, _description, _url)
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{
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}
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void init(int32_t _argc, const char* const* _argv, uint32_t _width, uint32_t _height) override
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{
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Args args(_argc, _argv);
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m_width = _width;
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m_height = _height;
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m_debug = BGFX_DEBUG_TEXT;
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m_reset = BGFX_RESET_VSYNC;
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bgfx::Init init;
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init.type = args.m_type;
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init.vendorId = args.m_pciId;
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init.resolution.width = m_width;
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init.resolution.height = m_height;
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init.resolution.reset = m_reset;
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bgfx::init(init);
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// Enable debug text.
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bgfx::setDebug(m_debug);
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// Set view 0 clear state.
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bgfx::setViewClear(0
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, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
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, 0x303030ff
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, 1.0f
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, 0
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);
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imguiCreate();
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}
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virtual int shutdown() override
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{
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imguiDestroy();
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// Shutdown bgfx.
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bgfx::shutdown();
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return 0;
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}
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bool update() override
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{
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if (!entry::processEvents(m_width, m_height, m_debug, m_reset, &m_mouseState) )
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{
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imguiBeginFrame(m_mouseState.m_mx
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, m_mouseState.m_my
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, (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
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| (m_mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
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| (m_mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
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, m_mouseState.m_mz
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, uint16_t(m_width)
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, uint16_t(m_height)
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);
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showExampleDialog(this);
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imguiEndFrame();
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// Set view 0 default viewport.
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bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) );
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// This dummy draw call is here to make sure that view 0 is cleared
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// if no other draw calls are submitted to view 0.
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bgfx::touch(0);
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// Use debug font to print information about this example.
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bgfx::dbgTextClear();
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bgfx::dbgTextImage(
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bx::max<uint16_t>(uint16_t(m_width /2/8 ), 20)-20
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, bx::max<uint16_t>(uint16_t(m_height/2/16), 6)-6
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, 40
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, 12
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, s_logo
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, 160
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);
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bgfx::dbgTextPrintf(0, 1, 0x0f, "Color can be changed with ANSI \x1b[9;me\x1b[10;ms\x1b[11;mc\x1b[12;ma\x1b[13;mp\x1b[14;me\x1b[0m code too.");
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bgfx::dbgTextPrintf(80, 1, 0x0f, "\x1b[;0m \x1b[;1m \x1b[; 2m \x1b[; 3m \x1b[; 4m \x1b[; 5m \x1b[; 6m \x1b[; 7m \x1b[0m");
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bgfx::dbgTextPrintf(80, 2, 0x0f, "\x1b[;8m \x1b[;9m \x1b[;10m \x1b[;11m \x1b[;12m \x1b[;13m \x1b[;14m \x1b[;15m \x1b[0m");
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const bgfx::Stats* stats = bgfx::getStats();
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bgfx::dbgTextPrintf(0, 2, 0x0f, "Backbuffer %dW x %dH in pixels, debug text %dW x %dH in characters."
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, stats->width
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, stats->height
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, stats->textWidth
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, stats->textHeight
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);
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// Advance to next frame. Rendering thread will be kicked to
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// process submitted rendering primitives.
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bgfx::frame();
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return true;
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}
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return false;
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}
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entry::MouseState m_mouseState;
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uint32_t m_width;
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uint32_t m_height;
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uint32_t m_debug;
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uint32_t m_reset;
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};
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} // namespace
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ENTRY_IMPLEMENT_MAIN(
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ExampleHelloWorld
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, "00-helloworld"
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, "Initialization and debug text."
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, "https://bkaradzic.github.io/bgfx/examples.html#helloworld"
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);
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