Added OpenGL and DirectX9 example applications
ocornut
10 years ago
parent
dbd777232a
commit
26f54c7364
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<Filter Include="imgui">
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<UniqueIdentifier>{ac86c4ce-1d96-47a9-9ace-f8970c3bd485}</UniqueIdentifier>
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</Filter>
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<Filter Include="sources">
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<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
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<Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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</Filter>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="main.cpp">
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<Filter>sources</Filter>
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</ClCompile>
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<ClCompile Include="..\..\imgui.cpp">
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<Filter>imgui</Filter>
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</ClCompile>
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="..\..\imconfig.h">
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<Filter>imgui</Filter>
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</ClInclude>
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<ClInclude Include="..\..\imgui.h">
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<Filter>imgui</Filter>
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</ClInclude>
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<ClInclude Include="..\..\stb_textedit.h">
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<Filter>imgui</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<None Include="..\..\LICENSE">
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<Filter>imgui</Filter>
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</None>
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</ItemGroup>
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</Project>
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#include <windows.h>
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#include <mmsystem.h>
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#include <d3dx9.h>
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#define DIRECTINPUT_VERSION 0x0800
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#include <dinput.h>
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#include "../../imgui.h"
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#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strdup
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static HWND hWnd;
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static LPDIRECT3D9 g_pD3D = NULL; // Used to create the D3DDevice
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static LPDIRECT3DDEVICE9 g_pd3dDevice = NULL; // Our rendering device
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static LPDIRECT3DVERTEXBUFFER9 g_pVB = NULL; // Buffer to hold vertices
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static LPDIRECT3DTEXTURE9 g_pTexture = NULL; // Our texture
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struct CUSTOMVERTEX
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{
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D3DXVECTOR3 position;
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D3DCOLOR color;
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float tu, tv;
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};
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#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1)
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static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_count)
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{
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size_t total_vtx_count = 0;
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for (int n = 0; n < cmd_lists_count; n++)
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total_vtx_count += cmd_lists[n]->vtx_buffer.size();
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if (total_vtx_count == 0)
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return;
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ImVector<ImVec4> clip_rect_stack;
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clip_rect_stack.push_back(ImVec4(-9999,-9999,+9999,+9999));
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// Setup orthographic projection
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// Set up world matrix
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D3DXMATRIXA16 mat;
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D3DXMatrixIdentity(&mat);
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g_pd3dDevice->SetTransform(D3DTS_WORLD, &mat);
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g_pd3dDevice->SetTransform(D3DTS_VIEW, &mat);
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D3DXMatrixOrthoOffCenterLH(&mat, 0.0f, ImGui::GetIO().DisplaySize.x, ImGui::GetIO().DisplaySize.y, 0.0f, -1.0f, +1.0f);
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g_pd3dDevice->SetTransform(D3DTS_PROJECTION, &mat);
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D3DSURFACE_DESC texture_desc;
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g_pTexture->GetLevelDesc(0, &texture_desc);
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// Fill the vertex buffer
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CUSTOMVERTEX* vtx_dst;
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if (g_pVB->Lock(0, total_vtx_count, (void**)&vtx_dst, D3DLOCK_DISCARD) < 0)
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return;
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for (int n = 0; n < cmd_lists_count; n++)
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{
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const ImDrawList* cmd_list = cmd_lists[n];
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if (cmd_list->commands.empty() || cmd_list->vtx_buffer.empty())
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continue;
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const ImDrawVert* vtx_src = &cmd_list->vtx_buffer[0];
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for (size_t i = 0; i < cmd_list->vtx_buffer.size(); i++)
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{
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vtx_dst->position.x = vtx_src->pos.x;
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vtx_dst->position.y = vtx_src->pos.y;
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vtx_dst->position.z = 0.0f;
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vtx_dst->color = (vtx_src->col & 0xFF00FF00) | ((vtx_src->col & 0xFF0000)>>16) | ((vtx_src->col & 0xFF) << 16); // RGBA --> ARGB for DirectX9
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vtx_dst->tu = vtx_src->uv.x;
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vtx_dst->tv = vtx_src->uv.y;
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vtx_dst++;
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vtx_src++;
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}
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}
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g_pVB->Unlock();
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g_pd3dDevice->SetStreamSource( 0, g_pVB, 0, sizeof( CUSTOMVERTEX ) );
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g_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX );
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// Setup render state: alpha-blending enabled, no face culling, no depth testing
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g_pd3dDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE );
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g_pd3dDevice->SetRenderState( D3DRS_LIGHTING, false );
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g_pd3dDevice->SetRenderState( D3DRS_ZENABLE, false );
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g_pd3dDevice->SetRenderState( D3DRS_ALPHABLENDENABLE, true );
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g_pd3dDevice->SetRenderState( D3DRS_BLENDOP, D3DBLENDOP_ADD );
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g_pd3dDevice->SetRenderState( D3DRS_ALPHATESTENABLE, false );
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g_pd3dDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_SRCALPHA );
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g_pd3dDevice->SetRenderState( D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA );
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g_pd3dDevice->SetRenderState( D3DRS_SCISSORTESTENABLE, true );
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// Setup texture
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g_pd3dDevice->SetTexture( 0, g_pTexture );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_MODULATE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAOP, D3DTOP_MODULATE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE );
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g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE );
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int vtx_consumed = 0; // offset in vertex buffer. each command consume ImDrawCmd::vtx_count of those
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bool clip_rect_dirty = true;
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for (int n = 0; n < cmd_lists_count; n++)
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{
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const ImDrawList* cmd_list = cmd_lists[n];
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if (cmd_list->commands.empty() || cmd_list->vtx_buffer.empty())
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continue;
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const ImDrawCmd* pcmd = &cmd_list->commands.front();
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const ImDrawCmd* pcmd_end = &cmd_list->commands.back();
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int clip_rect_buf_consumed = 0; // offset in cmd_list->clip_rect_buffer. each PushClipRect command consume 1 of those.
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while (pcmd <= pcmd_end)
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{
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const ImDrawCmd& cmd = *pcmd++;
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switch (cmd.cmd_type)
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{
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case ImDrawCmdType_DrawTriangleList:
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if (clip_rect_dirty)
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{
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const ImVec4& clip_rect = clip_rect_stack.back();
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const RECT r = { (LONG)clip_rect.x, (LONG)clip_rect.y, (LONG)clip_rect.z, (LONG)clip_rect.w };
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g_pd3dDevice->SetScissorRect(&r);
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clip_rect_dirty = false;
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}
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g_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST, vtx_consumed, cmd.vtx_count/3);
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vtx_consumed += cmd.vtx_count;
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break;
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case ImDrawCmdType_PushClipRect:
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clip_rect_stack.push_back(cmd_list->clip_rect_buffer[clip_rect_buf_consumed++]);
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clip_rect_dirty = true;
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break;
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case ImDrawCmdType_PopClipRect:
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clip_rect_stack.pop_back();
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clip_rect_dirty = true;
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break;
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}
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}
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}
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}
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// Get text data in Win32 clipboard
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static const char* ImImpl_GetClipboardTextFn()
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{
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static char* buf_local = NULL;
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if (buf_local)
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{
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free(buf_local);
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buf_local = NULL;
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}
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if (!OpenClipboard(NULL))
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return NULL;
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HANDLE buf_handle = GetClipboardData(CF_TEXT);
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if (buf_handle == NULL)
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return NULL;
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if (char* buf_global = (char*)GlobalLock(buf_handle))
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buf_local = strdup(buf_global);
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GlobalUnlock(buf_handle);
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CloseClipboard();
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return buf_local;
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}
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// Set text data in Win32 clipboard
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static void ImImpl_SetClipboardTextFn(const char* text, const char* text_end)
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{
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if (!OpenClipboard(NULL))
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return;
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if (!text_end)
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text_end = text + strlen(text);
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const int buf_length = (text_end - text) + 1;
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HGLOBAL buf_handle = GlobalAlloc(GMEM_MOVEABLE, buf_length * sizeof(char));
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if (buf_handle == NULL)
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return;
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char* buf_global = (char *)GlobalLock(buf_handle);
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memcpy(buf_global, text, text_end - text);
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buf_global[text_end - text] = 0;
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GlobalUnlock(buf_handle);
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EmptyClipboard();
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SetClipboardData(CF_TEXT, buf_handle);
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CloseClipboard();
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}
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HRESULT InitD3D(HWND hWnd)
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{
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if (NULL == (g_pD3D = Direct3DCreate9(D3D_SDK_VERSION)))
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return E_FAIL;
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D3DPRESENT_PARAMETERS d3dpp;
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ZeroMemory(&d3dpp, sizeof(d3dpp));
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d3dpp.Windowed = TRUE;
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d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
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d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
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d3dpp.EnableAutoDepthStencil = TRUE;
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d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
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d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
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// Create the D3DDevice
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if (g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice) < 0)
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return E_FAIL;
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// Create the vertex buffer.
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if (g_pd3dDevice->CreateVertexBuffer(10000 * sizeof(CUSTOMVERTEX), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &g_pVB, NULL) < 0)
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return E_FAIL;
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// Load font texture
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const void* png_data;
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unsigned int png_size;
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ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
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if (D3DXCreateTextureFromFileInMemory(g_pd3dDevice, png_data, png_size, &g_pTexture) < 0)
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return E_FAIL;
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return S_OK;
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}
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void Cleanup()
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{
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if (g_pTexture != NULL)
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g_pTexture->Release();
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if (g_pd3dDevice != NULL)
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g_pd3dDevice->Release();
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if (g_pD3D != NULL)
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g_pD3D->Release();
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}
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LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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ImGuiIO& io = ImGui::GetIO();
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switch (msg)
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{
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case WM_LBUTTONDOWN:
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io.MouseDown[0] = true;
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return true;
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case WM_LBUTTONUP:
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io.MouseDown[0] = false;
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return true;
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case WM_RBUTTONDOWN:
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io.MouseDown[1] = true;
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return true;
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case WM_RBUTTONUP:
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io.MouseDown[1] = false;
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return true;
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case WM_MOUSEWHEEL:
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io.MouseWheel = GET_WHEEL_DELTA_WPARAM(wParam) > 0 ? +1 : -1;
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return true;
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case WM_MOUSEMOVE:
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io.MousePos.x = (signed short)(lParam);
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io.MousePos.y = (signed short)(lParam >> 16);
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return true;
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case WM_CHAR:
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// You can also use ToAscii()+GetKeyboardState() to retrieve characters.
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if (wParam > 1 && wParam < 256)
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io.AddInputCharacter((char)wParam);
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return true;
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case WM_DESTROY:
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{
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Cleanup();
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PostQuitMessage(0);
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return 0;
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}
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}
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return DefWindowProc(hWnd, msg, wParam, lParam);
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}
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void InitImGui()
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{
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RECT rect;
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GetClientRect(hWnd, &rect);
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ImGuiIO& io = ImGui::GetIO();
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io.DisplaySize = ImVec2((float)(rect.right - rect.left), (float)(rect.bottom - rect.top));
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io.DeltaTime = 1.0f/60.0f;
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io.KeyMap[ImGuiKey_Tab] = VK_TAB;
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io.KeyMap[ImGuiKey_LeftArrow] = VK_LEFT;
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io.KeyMap[ImGuiKey_RightArrow] = VK_RIGHT;
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io.KeyMap[ImGuiKey_UpArrow] = VK_UP;
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io.KeyMap[ImGuiKey_DownArrow] = VK_UP;
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io.KeyMap[ImGuiKey_Home] = VK_HOME;
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io.KeyMap[ImGuiKey_End] = VK_END;
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io.KeyMap[ImGuiKey_Delete] = VK_DELETE;
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io.KeyMap[ImGuiKey_Backspace] = VK_BACK;
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io.KeyMap[ImGuiKey_Enter] = VK_RETURN;
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io.KeyMap[ImGuiKey_Escape] = VK_ESCAPE;
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io.KeyMap[ImGuiKey_A] = 'A';
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io.KeyMap[ImGuiKey_C] = 'C';
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io.KeyMap[ImGuiKey_V] = 'V';
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io.KeyMap[ImGuiKey_X] = 'X';
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io.KeyMap[ImGuiKey_Y] = 'Y';
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io.KeyMap[ImGuiKey_Z] = 'Z';
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io.RenderDrawListsFn = ImImpl_RenderDrawLists;
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io.SetClipboardTextFn = ImImpl_SetClipboardTextFn;
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io.GetClipboardTextFn = ImImpl_GetClipboardTextFn;
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}
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int WINAPI wWinMain(HINSTANCE hInst, HINSTANCE, LPWSTR, int)
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{
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// Register the window class
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WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L, GetModuleHandle(NULL), NULL, NULL, NULL, NULL, L"ImGui Example", NULL };
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RegisterClassEx(&wc);
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// Create the application's window
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hWnd = CreateWindow(L"ImGui Example", L"ImGui DirectX9 Example", WS_OVERLAPPEDWINDOW, 100, 100, 1280, 800, NULL, NULL, wc.hInstance, NULL);
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INT64 ticks_per_second, time;
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if (!QueryPerformanceFrequency((LARGE_INTEGER *)&ticks_per_second))
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return 1;
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if (!QueryPerformanceCounter((LARGE_INTEGER *)&time))
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return 1;
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// Initialize Direct3D
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if (InitD3D(hWnd) >= 0)
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{
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// Show the window
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ShowWindow(hWnd, SW_SHOWDEFAULT);
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UpdateWindow(hWnd);
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InitImGui();
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// Enter the message loop
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MSG msg;
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ZeroMemory(&msg, sizeof(msg));
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while (msg.message != WM_QUIT)
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{
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if (PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE))
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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continue;
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}
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// 1) ImGui start frame, setup time delta & inputs
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ImGuiIO& io = ImGui::GetIO();
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INT64 current_time;
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QueryPerformanceCounter((LARGE_INTEGER *)¤t_time);
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io.DeltaTime = (float)(current_time - time) / ticks_per_second;
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time = current_time;
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BYTE keystate[256];
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GetKeyboardState(keystate);
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for (int i = 0; i < 256; i++)
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io.KeysDown[i] = (keystate[i] & 0x80) != 0;
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io.KeyCtrl = (keystate[VK_CONTROL] & 0x80) != 0;
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io.KeyShift = (keystate[VK_SHIFT] & 0x80) != 0;
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// io.MousePos : filled by WM_MOUSEMOVE event
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// io.MouseDown : filled by WM_*BUTTON* events
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// io.MouseWheel : filled by WM_MOUSEWHEEL events
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ImGui::NewFrame();
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// 2) ImGui usage
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static bool show_test_window = true;
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static bool show_another_window = false;
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static float f;
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ImGui::Text("Hello, world!");
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ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
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show_test_window ^= ImGui::Button("Test Window");
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show_another_window ^= ImGui::Button("Another Window");
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// Calculate and show framerate
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static float ms_per_frame[120] = { 0 };
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static int ms_per_frame_idx = 0;
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static float ms_per_frame_accum = 0.0f;
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ms_per_frame_accum -= ms_per_frame[ms_per_frame_idx];
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ms_per_frame[ms_per_frame_idx] = io.DeltaTime * 1000.0f;
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ms_per_frame_accum += ms_per_frame[ms_per_frame_idx];
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ms_per_frame_idx = (ms_per_frame_idx + 1) % 120;
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const float ms_per_frame_avg = ms_per_frame_accum / 120;
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ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", ms_per_frame_avg, 1000.0f / ms_per_frame_avg);
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if (show_test_window)
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{
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// More example code in ShowTestWindow()
|
||||
ImGui::SetNewWindowDefaultPos(ImVec2(650, 20)); // Normally user code doesn't need/want to call it because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
|
||||
ImGui::ShowTestWindow(&show_test_window);
|
||||
}
|
||||
|
||||
if (show_another_window)
|
||||
{
|
||||
ImGui::Begin("Another Window", &show_another_window, ImVec2(200,100));
|
||||
ImGui::Text("Hello");
|
||||
ImGui::End();
|
||||
}
|
||||
|
||||
// 3) Render
|
||||
g_pd3dDevice->SetRenderState(D3DRS_ZENABLE, false);
|
||||
g_pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, false);
|
||||
g_pd3dDevice->SetRenderState(D3DRS_SCISSORTESTENABLE, false);
|
||||
g_pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(204, 153, 153), 1.0f, 0); // Clear the backbuffer and the zbuffer
|
||||
if (g_pd3dDevice->BeginScene() >= 0)
|
||||
{
|
||||
ImGui::Render();
|
||||
g_pd3dDevice->EndScene();
|
||||
}
|
||||
g_pd3dDevice->Present(NULL, NULL, NULL, NULL);
|
||||
}
|
||||
|
||||
ImGui::Shutdown();
|
||||
}
|
||||
|
||||
if (g_pVB)
|
||||
g_pVB->Release();
|
||||
|
||||
UnregisterClass(L"ImGui Example", wc.hInstance);
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,73 @@
|
||||
The OpenGL Extension Wrangler Library
|
||||
Copyright (C) 2002-2007, Milan Ikits <milan ikits[]ieee org>
|
||||
Copyright (C) 2002-2007, Marcelo E. Magallon <mmagallo[]debian org>
|
||||
Copyright (C) 2002, Lev Povalahev
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
* The name of the author may be used to endorse or promote products
|
||||
derived from this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
||||
THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|
||||
Mesa 3-D graphics library
|
||||
Version: 7.0
|
||||
|
||||
Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and associated documentation files (the "Software"),
|
||||
to deal in the Software without restriction, including without limitation
|
||||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||
and/or sell copies of the Software, and to permit persons to whom the
|
||||
Software is furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included
|
||||
in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||||
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
||||
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
|
||||
Copyright (c) 2007 The Khronos Group Inc.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and/or associated documentation files (the
|
||||
"Materials"), to deal in the Materials without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Materials, and to
|
||||
permit persons to whom the Materials are furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included
|
||||
in all copies or substantial portions of the Materials.
|
||||
|
||||
THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||||
MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
|
||||
@ -0,0 +1,18 @@
|
||||
See doc/index.html for more information.
|
||||
|
||||
If you downloaded the tarball from the GLEW website, you just need to:
|
||||
|
||||
Unix:
|
||||
|
||||
make
|
||||
|
||||
Windows:
|
||||
|
||||
use the project file in build/vc6/
|
||||
|
||||
If you wish to build GLEW from scratch (update the extension data from
|
||||
the net or add your own extension information), you need a Unix
|
||||
environment (including wget, perl, and GNU make). The extension data
|
||||
is regenerated from the top level source directory with:
|
||||
|
||||
make extensions
|
||||
@ -0,0 +1,12 @@
|
||||
Major:
|
||||
- add support for windows mini-client drivers
|
||||
- add windows installer (msi)
|
||||
- separate build of static and shared object files (for mingw and
|
||||
cygwin)
|
||||
- start designing GLEW 2.0
|
||||
|
||||
Minor:
|
||||
- make auto scripts work with text mode cygwin mounts
|
||||
- add support for all SUN, MTX, and OML extensions
|
||||
- make auto/Makefile more robust against auto/core/*~ mistakes
|
||||
- web poll on separating glew, glxew and wglew
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
Binary file not shown.
@ -0,0 +1,22 @@
|
||||
Copyright (c) 2002-2006 Marcus Geelnard
|
||||
Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would
|
||||
be appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not
|
||||
be misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,180 @@
|
||||
/*************************************************************************
|
||||
* GLFW 3.0 - www.glfw.org
|
||||
* A library for OpenGL, window and input
|
||||
*------------------------------------------------------------------------
|
||||
* Copyright (c) 2002-2006 Marcus Geelnard
|
||||
* Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
*
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
*
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would
|
||||
* be appreciated but is not required.
|
||||
*
|
||||
* 2. Altered source versions must be plainly marked as such, and must not
|
||||
* be misrepresented as being the original software.
|
||||
*
|
||||
* 3. This notice may not be removed or altered from any source
|
||||
* distribution.
|
||||
*
|
||||
*************************************************************************/
|
||||
|
||||
#ifndef _glfw3_native_h_
|
||||
#define _glfw3_native_h_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
* Doxygen documentation
|
||||
*************************************************************************/
|
||||
|
||||
/*! @defgroup native Native access
|
||||
*
|
||||
* **By using the native API, you assert that you know what you're doing and
|
||||
* how to fix problems caused by using it. If you don't, you shouldn't be
|
||||
* using it.**
|
||||
*
|
||||
* Before the inclusion of @ref glfw3native.h, you must define exactly one
|
||||
* window API macro and exactly one context API macro. Failure to do this
|
||||
* will cause a compile-time error.
|
||||
*
|
||||
* The available window API macros are:
|
||||
* * `GLFW_EXPOSE_NATIVE_WIN32`
|
||||
* * `GLFW_EXPOSE_NATIVE_COCOA`
|
||||
* * `GLFW_EXPOSE_NATIVE_X11`
|
||||
*
|
||||
* The available context API macros are:
|
||||
* * `GLFW_EXPOSE_NATIVE_WGL`
|
||||
* * `GLFW_EXPOSE_NATIVE_NSGL`
|
||||
* * `GLFW_EXPOSE_NATIVE_GLX`
|
||||
* * `GLFW_EXPOSE_NATIVE_EGL`
|
||||
*
|
||||
* These macros select which of the native access functions that are declared
|
||||
* and which platform-specific headers to include. It is then up your (by
|
||||
* definition platform-specific) code to handle which of these should be
|
||||
* defined.
|
||||
*/
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
* System headers and types
|
||||
*************************************************************************/
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_WIN32)
|
||||
#include <windows.h>
|
||||
#elif defined(GLFW_EXPOSE_NATIVE_COCOA)
|
||||
#if defined(__OBJC__)
|
||||
#import <Cocoa/Cocoa.h>
|
||||
#else
|
||||
typedef void* id;
|
||||
#endif
|
||||
#elif defined(GLFW_EXPOSE_NATIVE_X11)
|
||||
#include <X11/Xlib.h>
|
||||
#else
|
||||
#error "No window API specified"
|
||||
#endif
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_WGL)
|
||||
/* WGL is declared by windows.h */
|
||||
#elif defined(GLFW_EXPOSE_NATIVE_NSGL)
|
||||
/* NSGL is declared by Cocoa.h */
|
||||
#elif defined(GLFW_EXPOSE_NATIVE_GLX)
|
||||
#include <GL/glx.h>
|
||||
#elif defined(GLFW_EXPOSE_NATIVE_EGL)
|
||||
#include <EGL/egl.h>
|
||||
#else
|
||||
#error "No context API specified"
|
||||
#endif
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
* Functions
|
||||
*************************************************************************/
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_WIN32)
|
||||
/*! @brief Returns the `HWND` of the specified window.
|
||||
* @return The `HWND` of the specified window.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI HWND glfwGetWin32Window(GLFWwindow* window);
|
||||
#endif
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_WGL)
|
||||
/*! @brief Returns the `HGLRC` of the specified window.
|
||||
* @return The `HGLRC` of the specified window.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* window);
|
||||
#endif
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_COCOA)
|
||||
/*! @brief Returns the `NSWindow` of the specified window.
|
||||
* @return The `NSWindow` of the specified window.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI id glfwGetCocoaWindow(GLFWwindow* window);
|
||||
#endif
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_NSGL)
|
||||
/*! @brief Returns the `NSOpenGLContext` of the specified window.
|
||||
* @return The `NSOpenGLContext` of the specified window.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI id glfwGetNSGLContext(GLFWwindow* window);
|
||||
#endif
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_X11)
|
||||
/*! @brief Returns the `Display` used by GLFW.
|
||||
* @return The `Display` used by GLFW.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI Display* glfwGetX11Display(void);
|
||||
/*! @brief Returns the `Window` of the specified window.
|
||||
* @return The `Window` of the specified window.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI Window glfwGetX11Window(GLFWwindow* window);
|
||||
#endif
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_GLX)
|
||||
/*! @brief Returns the `GLXContext` of the specified window.
|
||||
* @return The `GLXContext` of the specified window.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* window);
|
||||
#endif
|
||||
|
||||
#if defined(GLFW_EXPOSE_NATIVE_EGL)
|
||||
/*! @brief Returns the `EGLDisplay` used by GLFW.
|
||||
* @return The `EGLDisplay` used by GLFW.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI EGLDisplay glfwGetEGLDisplay(void);
|
||||
/*! @brief Returns the `EGLContext` of the specified window.
|
||||
* @return The `EGLContext` of the specified window.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* window);
|
||||
/*! @brief Returns the `EGLSurface` of the specified window.
|
||||
* @return The `EGLSurface` of the specified window.
|
||||
* @ingroup native
|
||||
*/
|
||||
GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* window);
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _glfw3_native_h_ */
|
||||
|
||||
Binary file not shown.
Binary file not shown.
@ -0,0 +1,402 @@
|
||||
#define GLEW_STATIC
|
||||
#include <GL/glew.h>
|
||||
#include <GLFW/glfw3.h>
|
||||
#define STB_IMAGE_IMPLEMENTATION
|
||||
#include "stb_image.h" // for .png loading
|
||||
#include "../../imgui.h"
|
||||
#ifdef _MSC_VER
|
||||
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
|
||||
#endif
|
||||
|
||||
static GLFWwindow* window;
|
||||
static GLuint vbo;
|
||||
static GLuint vao;
|
||||
static GLuint vertexShader;
|
||||
static GLuint fragmentShader;
|
||||
static GLuint shaderProgram;
|
||||
static GLuint fontTex;
|
||||
static GLint uniMVP;
|
||||
static GLint uniClipRect;
|
||||
|
||||
static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_count)
|
||||
{
|
||||
size_t total_vtx_count = 0;
|
||||
for (int n = 0; n < cmd_lists_count; n++)
|
||||
total_vtx_count += cmd_lists[n]->vtx_buffer.size();
|
||||
if (total_vtx_count == 0)
|
||||
return;
|
||||
|
||||
int read_pos_clip_rect_buf = 0; // offset in 'clip_rect_buffer'. each PushClipRect command consume 1 of those.
|
||||
|
||||
ImVector<ImVec4> clip_rect_stack;
|
||||
clip_rect_stack.push_back(ImVec4(-9999,-9999,+9999,+9999));
|
||||
|
||||
// Setup orthographic projection
|
||||
const float L = 0.0f;
|
||||
const float R = ImGui::GetIO().DisplaySize.x;
|
||||
const float B = ImGui::GetIO().DisplaySize.y;
|
||||
const float T = 0.0f;
|
||||
const float mvp[4][4] =
|
||||
{
|
||||
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, -1.0f, 0.0f },
|
||||
{ -(R+L)/(R-L), -(T+B)/(T-B), 0.0f, 1.0f },
|
||||
};
|
||||
|
||||
glBindBuffer(GL_ARRAY_BUFFER, vbo);
|
||||
glBindVertexArray(vao);
|
||||
glBufferData(GL_ARRAY_BUFFER, total_vtx_count * sizeof(ImDrawVert), NULL, GL_STREAM_DRAW);
|
||||
unsigned char* buffer_data = (unsigned char*)glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
|
||||
if (!buffer_data)
|
||||
return;
|
||||
int vtx_consumed = 0;
|
||||
for (int n = 0; n < cmd_lists_count; n++)
|
||||
{
|
||||
const ImDrawList* cmd_list = cmd_lists[n];
|
||||
if (!cmd_list->vtx_buffer.empty())
|
||||
{
|
||||
memcpy(buffer_data, &cmd_list->vtx_buffer[0], cmd_list->vtx_buffer.size() * sizeof(ImDrawVert));
|
||||
buffer_data += cmd_list->vtx_buffer.size() * sizeof(ImDrawVert);
|
||||
vtx_consumed += cmd_list->vtx_buffer.size();
|
||||
}
|
||||
}
|
||||
glUnmapBuffer(GL_ARRAY_BUFFER);
|
||||
|
||||
glUseProgram(shaderProgram);
|
||||
glUniformMatrix4fv(uniMVP, 1, GL_FALSE, &mvp[0][0]);
|
||||
|
||||
// Setup render state: alpha-blending enabled, no face culling, no depth testing
|
||||
glEnable(GL_BLEND);
|
||||
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||||
glDisable(GL_CULL_FACE);
|
||||
glDisable(GL_DEPTH_TEST);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, fontTex);
|
||||
|
||||
vtx_consumed = 0; // offset in vertex buffer. each command consume ImDrawCmd::vtx_count of those
|
||||
bool clip_rect_dirty = true;
|
||||
|
||||
for (int n = 0; n < cmd_lists_count; n++)
|
||||
{
|
||||
const ImDrawList* cmd_list = cmd_lists[n];
|
||||
if (cmd_list->commands.empty() || cmd_list->vtx_buffer.empty())
|
||||
continue;
|
||||
const ImDrawCmd* pcmd = &cmd_list->commands.front();
|
||||
const ImDrawCmd* pcmd_end = &cmd_list->commands.back();
|
||||
int clip_rect_buf_consumed = 0; // offset in cmd_list->clip_rect_buffer. each PushClipRect command consume 1 of those.
|
||||
while (pcmd <= pcmd_end)
|
||||
{
|
||||
const ImDrawCmd& cmd = *pcmd++;
|
||||
switch (cmd.cmd_type)
|
||||
{
|
||||
case ImDrawCmdType_DrawTriangleList:
|
||||
if (clip_rect_dirty)
|
||||
{
|
||||
glUniform4fv(uniClipRect, 1, (float*)&clip_rect_stack.back());
|
||||
clip_rect_dirty = false;
|
||||
}
|
||||
glDrawArrays(GL_TRIANGLES, vtx_consumed, cmd.vtx_count);
|
||||
vtx_consumed += cmd.vtx_count;
|
||||
break;
|
||||
|
||||
case ImDrawCmdType_PushClipRect:
|
||||
clip_rect_stack.push_back(cmd_list->clip_rect_buffer[clip_rect_buf_consumed++]);
|
||||
clip_rect_dirty = true;
|
||||
break;
|
||||
|
||||
case ImDrawCmdType_PopClipRect:
|
||||
clip_rect_stack.pop_back();
|
||||
clip_rect_dirty = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static const char* ImImpl_GetClipboardTextFn()
|
||||
{
|
||||
return glfwGetClipboardString(window);
|
||||
}
|
||||
|
||||
static void ImImpl_SetClipboardTextFn(const char* text, const char* text_end)
|
||||
{
|
||||
if (!text_end)
|
||||
text_end = text + strlen(text);
|
||||
|
||||
char* buf = (char*)malloc(text_end - text + 1);
|
||||
memcpy(buf, text, text_end-text);
|
||||
buf[text_end-text] = '\0';
|
||||
glfwSetClipboardString(window, buf);
|
||||
free(buf);
|
||||
}
|
||||
|
||||
// Shader sources
|
||||
// FIXME-OPT: clip at vertex level
|
||||
const GLchar* vertexSource =
|
||||
"#version 150 core\n"
|
||||
"uniform mat4 MVP;"
|
||||
"in vec2 i_pos;"
|
||||
"in vec2 i_uv;"
|
||||
"in vec4 i_col;"
|
||||
"out vec4 col;"
|
||||
"out vec2 pixel_pos;"
|
||||
"out vec2 uv;"
|
||||
"void main() {"
|
||||
" col = i_col;"
|
||||
" pixel_pos = i_pos;"
|
||||
" uv = i_uv;"
|
||||
" gl_Position = MVP * vec4(i_pos.x, i_pos.y, 0.0f, 1.0f);"
|
||||
"}";
|
||||
|
||||
const GLchar* fragmentSource =
|
||||
"#version 150 core\n"
|
||||
"uniform sampler2D Tex;"
|
||||
"uniform vec4 ClipRect;"
|
||||
"in vec4 col;"
|
||||
"in vec2 pixel_pos;"
|
||||
"in vec2 uv;"
|
||||
"out vec4 o_col;"
|
||||
"void main() {"
|
||||
" o_col = texture(Tex, uv) * col;"
|
||||
//" if (pixel_pos.x < ClipRect.x || pixel_pos.y < ClipRect.y || pixel_pos.x > ClipRect.z || pixel_pos.y > ClipRect.w) discard;" // Clipping: using discard
|
||||
//" if (step(ClipRect.x,pixel_pos.x) * step(ClipRect.y,pixel_pos.y) * step(pixel_pos.x,ClipRect.z) * step(pixel_pos.y,ClipRect.w) < 1.0f) discard;" // Clipping: using discard and step
|
||||
" o_col.w *= (step(ClipRect.x,pixel_pos.x) * step(ClipRect.y,pixel_pos.y) * step(pixel_pos.x,ClipRect.z) * step(pixel_pos.y,ClipRect.w));" // Clipping: branch-less, set alpha 0.0f
|
||||
"}";
|
||||
|
||||
static void glfw_error_callback(int error, const char* description)
|
||||
{
|
||||
fputs(description, stderr);
|
||||
}
|
||||
|
||||
static float mouse_wheel = 0.0f;
|
||||
static void glfw_scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
|
||||
{
|
||||
mouse_wheel = (float)yoffset;
|
||||
}
|
||||
|
||||
static void glfw_key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
|
||||
{
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
if (action == GLFW_PRESS)
|
||||
io.KeysDown[key] = true;
|
||||
if (action == GLFW_RELEASE)
|
||||
io.KeysDown[key] = false;
|
||||
io.KeyCtrl = (mods & GLFW_MOD_CONTROL) != 0;
|
||||
io.KeyShift = (mods & GLFW_MOD_SHIFT) != 0;
|
||||
}
|
||||
|
||||
static void glfw_char_callback(GLFWwindow* window, unsigned int c)
|
||||
{
|
||||
if (c > 0 && c <= 255)
|
||||
ImGui::GetIO().AddInputCharacter((char)c);
|
||||
}
|
||||
|
||||
// OpenGL code based on http://open.gl tutorials
|
||||
void InitGL()
|
||||
{
|
||||
glfwSetErrorCallback(glfw_error_callback);
|
||||
|
||||
if (!glfwInit())
|
||||
exit(1);
|
||||
|
||||
//glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
||||
//glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
|
||||
//glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
||||
//glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
||||
glfwWindowHint(GLFW_REFRESH_RATE, 60);
|
||||
glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
|
||||
window = glfwCreateWindow(1280, 720, "ImGui OpenGL example", nullptr, nullptr);
|
||||
glfwMakeContextCurrent(window);
|
||||
|
||||
glfwSetKeyCallback(window, glfw_key_callback);
|
||||
glfwSetScrollCallback(window, glfw_scroll_callback);
|
||||
glfwSetCharCallback(window, glfw_char_callback);
|
||||
|
||||
glewExperimental = GL_TRUE;
|
||||
glewInit();
|
||||
|
||||
GLenum err = GL_NO_ERROR;
|
||||
GLint status = GL_TRUE;
|
||||
err = glGetError(); IM_ASSERT(err == GL_NO_ERROR);
|
||||
|
||||
// Create and compile the vertex shader
|
||||
vertexShader = glCreateShader(GL_VERTEX_SHADER);
|
||||
glShaderSource(vertexShader, 1, &vertexSource, NULL);
|
||||
glCompileShader(vertexShader);
|
||||
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &status);
|
||||
if (status != GL_TRUE)
|
||||
{
|
||||
char buffer[512];
|
||||
glGetShaderInfoLog(vertexShader, 1024, NULL, buffer);
|
||||
printf("%s", buffer);
|
||||
IM_ASSERT(status == GL_TRUE);
|
||||
}
|
||||
|
||||
// Create and compile the fragment shader
|
||||
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
glShaderSource(fragmentShader, 1, &fragmentSource, NULL);
|
||||
glCompileShader(fragmentShader);
|
||||
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &status);
|
||||
IM_ASSERT(status == GL_TRUE);
|
||||
|
||||
// Link the vertex and fragment shader into a shader program
|
||||
shaderProgram = glCreateProgram();
|
||||
glAttachShader(shaderProgram, vertexShader);
|
||||
glAttachShader(shaderProgram, fragmentShader);
|
||||
glBindFragDataLocation(shaderProgram, 0, "o_col");
|
||||
glLinkProgram(shaderProgram);
|
||||
glGetProgramiv(shaderProgram, GL_LINK_STATUS, &status);
|
||||
IM_ASSERT(status == GL_TRUE);
|
||||
|
||||
uniMVP = glGetUniformLocation(shaderProgram, "MVP");
|
||||
uniClipRect = glGetUniformLocation(shaderProgram, "ClipRect");
|
||||
|
||||
// Create Vertex Buffer Objects & Vertex Array Objects
|
||||
glGenBuffers(1, &vbo);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, vbo);
|
||||
glGenVertexArrays(1, &vao);
|
||||
glBindVertexArray(vao);
|
||||
|
||||
GLint posAttrib = glGetAttribLocation(shaderProgram, "i_pos");
|
||||
glVertexAttribPointer(posAttrib, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), 0);
|
||||
glEnableVertexAttribArray(posAttrib);
|
||||
|
||||
GLint uvAttrib = glGetAttribLocation(shaderProgram, "i_uv");
|
||||
glEnableVertexAttribArray(uvAttrib);
|
||||
glVertexAttribPointer(uvAttrib, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (void*)(2*sizeof(float)));
|
||||
|
||||
GLint colAttrib = glGetAttribLocation(shaderProgram, "i_col");
|
||||
glVertexAttribPointer(colAttrib, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (void*)(4*sizeof(float)));
|
||||
glEnableVertexAttribArray(colAttrib);
|
||||
err = glGetError(); IM_ASSERT(err == GL_NO_ERROR);
|
||||
}
|
||||
|
||||
void InitImGui()
|
||||
{
|
||||
int w, h;
|
||||
glfwGetWindowSize(window, &w, &h);
|
||||
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
io.DisplaySize = ImVec2((float)w, (float)h);
|
||||
io.DeltaTime = 1.0f/60.0f;
|
||||
io.KeyMap[ImGuiKey_Tab] = GLFW_KEY_TAB;
|
||||
io.KeyMap[ImGuiKey_LeftArrow] = GLFW_KEY_LEFT;
|
||||
io.KeyMap[ImGuiKey_RightArrow] = GLFW_KEY_RIGHT;
|
||||
io.KeyMap[ImGuiKey_UpArrow] = GLFW_KEY_UP;
|
||||
io.KeyMap[ImGuiKey_DownArrow] = GLFW_KEY_DOWN;
|
||||
io.KeyMap[ImGuiKey_Home] = GLFW_KEY_HOME;
|
||||
io.KeyMap[ImGuiKey_End] = GLFW_KEY_END;
|
||||
io.KeyMap[ImGuiKey_Delete] = GLFW_KEY_DELETE;
|
||||
io.KeyMap[ImGuiKey_Backspace] = GLFW_KEY_BACKSPACE;
|
||||
io.KeyMap[ImGuiKey_Enter] = GLFW_KEY_ENTER;
|
||||
io.KeyMap[ImGuiKey_Escape] = GLFW_KEY_ESCAPE;
|
||||
io.KeyMap[ImGuiKey_A] = GLFW_KEY_A;
|
||||
io.KeyMap[ImGuiKey_C] = GLFW_KEY_C;
|
||||
io.KeyMap[ImGuiKey_V] = GLFW_KEY_V;
|
||||
io.KeyMap[ImGuiKey_X] = GLFW_KEY_X;
|
||||
io.KeyMap[ImGuiKey_Y] = GLFW_KEY_Y;
|
||||
io.KeyMap[ImGuiKey_Z] = GLFW_KEY_Z;
|
||||
|
||||
io.RenderDrawListsFn = ImImpl_RenderDrawLists;
|
||||
io.SetClipboardTextFn = ImImpl_SetClipboardTextFn;
|
||||
io.GetClipboardTextFn = ImImpl_GetClipboardTextFn;
|
||||
|
||||
// Load font texture
|
||||
glGenTextures(1, &fontTex);
|
||||
glBindTexture(GL_TEXTURE_2D, fontTex);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
||||
|
||||
const void* png_data;
|
||||
unsigned int png_size;
|
||||
ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
|
||||
int tex_x, tex_y, tex_comp;
|
||||
void* tex_data = stbi_load_from_memory((const unsigned char*)png_data, (int)png_size, &tex_x, &tex_y, &tex_comp, 0);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_x, tex_y, 0, GL_RGBA, GL_UNSIGNED_BYTE, tex_data);
|
||||
stbi_image_free(tex_data);
|
||||
}
|
||||
|
||||
void Shutdown()
|
||||
{
|
||||
ImGui::Shutdown();
|
||||
|
||||
glDeleteProgram(shaderProgram);
|
||||
glDeleteShader(fragmentShader);
|
||||
glDeleteShader(vertexShader);
|
||||
glDeleteBuffers(1, &vbo);
|
||||
glDeleteVertexArrays(1, &vao);
|
||||
|
||||
glfwTerminate();
|
||||
}
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
InitGL();
|
||||
InitImGui();
|
||||
|
||||
double time = glfwGetTime();
|
||||
while (!glfwWindowShouldClose(window))
|
||||
{
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
glfwPollEvents();
|
||||
|
||||
// 1) ImGui start frame, setup time delta & inputs
|
||||
const double current_time = glfwGetTime();
|
||||
io.DeltaTime = (float)(current_time - time);
|
||||
time = current_time;
|
||||
double mouse_x, mouse_y;
|
||||
glfwGetCursorPos(window, &mouse_x, &mouse_y);
|
||||
io.MousePos = ImVec2((float)mouse_x, (float)mouse_y);
|
||||
io.MouseDown[0] = glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_LEFT) != 0;
|
||||
io.MouseDown[1] = glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_RIGHT) != 0;
|
||||
io.MouseWheel = (mouse_wheel != 0) ? mouse_wheel > 0.0f ? 1 : - 1 : 0;
|
||||
mouse_wheel = 0.0f;
|
||||
ImGui::NewFrame();
|
||||
|
||||
// 2) ImGui usage
|
||||
static bool show_test_window = true;
|
||||
static bool show_another_window = false;
|
||||
static float f;
|
||||
ImGui::Text("Hello, world!");
|
||||
ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
|
||||
show_test_window ^= ImGui::Button("Test Window");
|
||||
show_another_window ^= ImGui::Button("Another Window");
|
||||
|
||||
// Calculate and show framerate
|
||||
static float ms_per_frame[120] = { 0 };
|
||||
static int ms_per_frame_idx = 0;
|
||||
static float ms_per_frame_accum = 0.0f;
|
||||
ms_per_frame_accum -= ms_per_frame[ms_per_frame_idx];
|
||||
ms_per_frame[ms_per_frame_idx] = io.DeltaTime * 1000.0f;
|
||||
ms_per_frame_accum += ms_per_frame[ms_per_frame_idx];
|
||||
ms_per_frame_idx = (ms_per_frame_idx + 1) % 120;
|
||||
const float ms_per_frame_avg = ms_per_frame_accum / 120;
|
||||
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", ms_per_frame_avg, 1000.0f / ms_per_frame_avg);
|
||||
|
||||
if (show_test_window)
|
||||
{
|
||||
// More example code in ShowTestWindow()
|
||||
ImGui::SetNewWindowDefaultPos(ImVec2(650, 20)); // Normally user code doesn't need/want to call it because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
|
||||
ImGui::ShowTestWindow(&show_test_window);
|
||||
}
|
||||
|
||||
if (show_another_window)
|
||||
{
|
||||
ImGui::Begin("Another Window", &show_another_window, ImVec2(200,100));
|
||||
ImGui::Text("Hello");
|
||||
ImGui::End();
|
||||
}
|
||||
|
||||
// 3) Render
|
||||
glClearColor(0.8f, 0.6f, 0.6f, 1.0f);
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
ImGui::Render();
|
||||
|
||||
glfwSwapBuffers(window);
|
||||
}
|
||||
|
||||
Shutdown();
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,39 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<ItemGroup>
|
||||
<Filter Include="imgui">
|
||||
<UniqueIdentifier>{c336cfe3-f0c4-464c-9ef0-a9e17a7ff222}</UniqueIdentifier>
|
||||
</Filter>
|
||||
<Filter Include="sources">
|
||||
<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
|
||||
<Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
|
||||
</Filter>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="main.cpp">
|
||||
<Filter>sources</Filter>
|
||||
</ClCompile>
|
||||
<ClCompile Include="..\..\imgui.cpp">
|
||||
<Filter>imgui</Filter>
|
||||
</ClCompile>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClInclude Include="stb_image.h">
|
||||
<Filter>sources</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="..\..\imconfig.h">
|
||||
<Filter>imgui</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="..\..\imgui.h">
|
||||
<Filter>imgui</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="..\..\stb_textedit.h">
|
||||
<Filter>imgui</Filter>
|
||||
</ClInclude>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<None Include="..\..\LICENSE">
|
||||
<Filter>imgui</Filter>
|
||||
</None>
|
||||
</ItemGroup>
|
||||
</Project>
|
||||
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue