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Merge branch 'master' into docking

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# Conflicts:
#	examples/imgui_impl_dx9.cpp
#	examples/imgui_impl_opengl3.cpp
This commit is contained in:
omar
2019-04-03 11:17:26 +02:00
parent 9bf6509c6e 8dab7ac021
commit 49fb8e6c45
17 changed files with 138 additions and 127 deletions
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4
examples/example_sdl_opengl2/build_win32.bat
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@ -1,8 +1,8 @@
@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
set OUT_DIR=Debug
set OUT_EXE=example_sdl_opengl2.exe
set OUT_EXE=example_sdl_opengl2
set INCLUDES=/I.. /I..\.. /I%SDL2_DIR%\include
set SOURCES=main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl2.cpp ..\..\imgui*.cpp
set LIBS=/libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib
mkdir %OUT_DIR%
cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_DIR%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console
cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

2
examples/example_sdl_opengl3/build_win32.bat
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@ -1,6 +1,6 @@
@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
set OUT_DIR=Debug
set OUT_EXE=example_sdl_opengl3.exe
set OUT_EXE=example_sdl_opengl3
set INCLUDES=/I.. /I..\.. /I%SDL2_DIR%\include /I..\libs\gl3w
set SOURCES=main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl3.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c
set LIBS=/libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib

2
examples/imgui_impl_allegro5.cpp
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@ -154,7 +154,7 @@ bool ImGui_ImplAllegro5_CreateDeviceObjects()
{
// Build texture atlas
ImGuiIO &io = ImGui::GetIO();
unsigned char *pixels;
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);

2
examples/imgui_impl_dx11.cpp
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@ -96,7 +96,7 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
return;
}
// Copy and convert all vertices into a single contiguous buffer
// Upload vertex/index data into a single contiguous GPU buffer
D3D11_MAPPED_SUBRESOURCE vtx_resource, idx_resource;
if (ctx->Map(g_pVB, 0, D3D11_MAP_WRITE_DISCARD, 0, &vtx_resource) != S_OK)
return;

95
examples/imgui_impl_dx12.cpp
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@ -12,6 +12,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2019-03-29: Misc: Various minor tidying up.
// 2018-12-03: Misc: Added #pragma comment statement to automatically link with d3dcompiler.lib when using D3DCompile().
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-06-12: DirectX12: Moved the ID3D12GraphicsCommandList* parameter from NewFrame() to RenderDrawData().
@ -43,14 +44,14 @@ static D3D12_GPU_DESCRIPTOR_HANDLE g_hFontSrvGpuDescHandle = {};
struct FrameResources
{
ID3D12Resource* IB;
ID3D12Resource* VB;
int VertexBufferSize;
int IndexBufferSize;
ID3D12Resource* IndexBuffer;
ID3D12Resource* VertexBuffer;
int IndexBufferSize;
int VertexBufferSize;
};
static FrameResources* g_pFrameResources = NULL;
static UINT g_numFramesInFlight = 0;
static UINT g_frameIndex = UINT_MAX;
static FrameResources* g_pFrameResources = NULL;
static UINT g_numFramesInFlight = 0;
static UINT g_frameIndex = UINT_MAX;
struct VERTEX_CONSTANT_BUFFER
{
@ -68,17 +69,13 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
// FIXME: I'm assuming that this only gets called once per frame!
// If not, we can't just re-allocate the IB or VB, we'll have to do a proper allocator.
g_frameIndex = g_frameIndex + 1;
FrameResources* frameResources = &g_pFrameResources[g_frameIndex % g_numFramesInFlight];
ID3D12Resource* g_pVB = frameResources->VB;
ID3D12Resource* g_pIB = frameResources->IB;
int g_VertexBufferSize = frameResources->VertexBufferSize;
int g_IndexBufferSize = frameResources->IndexBufferSize;
FrameResources* fr = &g_pFrameResources[g_frameIndex % g_numFramesInFlight];
// Create and grow vertex/index buffers if needed
if (!g_pVB || g_VertexBufferSize < draw_data->TotalVtxCount)
if (fr->VertexBuffer == NULL || fr->VertexBufferSize < draw_data->TotalVtxCount)
{
if (g_pVB) { g_pVB->Release(); g_pVB = NULL; }
g_VertexBufferSize = draw_data->TotalVtxCount + 5000;
if (fr->VertexBuffer != NULL) { fr->VertexBuffer->Release(); fr->VertexBuffer = NULL; }
fr->VertexBufferSize = draw_data->TotalVtxCount + 5000;
D3D12_HEAP_PROPERTIES props;
memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
props.Type = D3D12_HEAP_TYPE_UPLOAD;
@ -87,7 +84,7 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
D3D12_RESOURCE_DESC desc;
memset(&desc, 0, sizeof(D3D12_RESOURCE_DESC));
desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
desc.Width = g_VertexBufferSize * sizeof(ImDrawVert);
desc.Width = fr->VertexBufferSize * sizeof(ImDrawVert);
desc.Height = 1;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
@ -95,15 +92,13 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
desc.SampleDesc.Count = 1;
desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
desc.Flags = D3D12_RESOURCE_FLAG_NONE;
if (g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&g_pVB)) < 0)
if (g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&fr->VertexBuffer)) < 0)
return;
frameResources->VB = g_pVB;
frameResources->VertexBufferSize = g_VertexBufferSize;
}
if (!g_pIB || g_IndexBufferSize < draw_data->TotalIdxCount)
if (fr->IndexBuffer == NULL || fr->IndexBufferSize < draw_data->TotalIdxCount)
{
if (g_pIB) { g_pIB->Release(); g_pIB = NULL; }
g_IndexBufferSize = draw_data->TotalIdxCount + 10000;
if (fr->IndexBuffer != NULL) { fr->IndexBuffer->Release(); fr->IndexBuffer = NULL; }
fr->IndexBufferSize = draw_data->TotalIdxCount + 10000;
D3D12_HEAP_PROPERTIES props;
memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
props.Type = D3D12_HEAP_TYPE_UPLOAD;
@ -112,7 +107,7 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
D3D12_RESOURCE_DESC desc;
memset(&desc, 0, sizeof(D3D12_RESOURCE_DESC));
desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
desc.Width = g_IndexBufferSize * sizeof(ImDrawIdx);
desc.Width = fr->IndexBufferSize * sizeof(ImDrawIdx);
desc.Height = 1;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
@ -120,19 +115,17 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
desc.SampleDesc.Count = 1;
desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
desc.Flags = D3D12_RESOURCE_FLAG_NONE;
if (g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&g_pIB)) < 0)
if (g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&fr->IndexBuffer)) < 0)
return;
frameResources->IB = g_pIB;
frameResources->IndexBufferSize = g_IndexBufferSize;
}
// Copy and convert all vertices into a single contiguous buffer
// Upload vertex/index data into a single contiguous GPU buffer
void* vtx_resource, *idx_resource;
D3D12_RANGE range;
memset(&range, 0, sizeof(D3D12_RANGE));
if (g_pVB->Map(0, &range, &vtx_resource) != S_OK)
if (fr->VertexBuffer->Map(0, &range, &vtx_resource) != S_OK)
return;
if (g_pIB->Map(0, &range, &idx_resource) != S_OK)
if (fr->IndexBuffer->Map(0, &range, &idx_resource) != S_OK)
return;
ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource;
ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource;
@ -144,14 +137,13 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
vtx_dst += cmd_list->VtxBuffer.Size;
idx_dst += cmd_list->IdxBuffer.Size;
}
g_pVB->Unmap(0, &range);
g_pIB->Unmap(0, &range);
fr->VertexBuffer->Unmap(0, &range);
fr->IndexBuffer->Unmap(0, &range);
// Setup orthographic projection matrix into our constant buffer
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is (0,0) for single viewport apps.
VERTEX_CONSTANT_BUFFER vertex_constant_buffer;
{
VERTEX_CONSTANT_BUFFER* constant_buffer = &vertex_constant_buffer;
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
@ -163,7 +155,7 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
{ 0.0f, 0.0f, 0.5f, 0.0f },
{ (R+L)/(L-R), (T+B)/(B-T), 0.5f, 1.0f },
};
memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
memcpy(&vertex_constant_buffer.mvp, mvp, sizeof(mvp));
}
// Setup viewport
@ -181,14 +173,14 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
unsigned int offset = 0;
D3D12_VERTEX_BUFFER_VIEW vbv;
memset(&vbv, 0, sizeof(D3D12_VERTEX_BUFFER_VIEW));
vbv.BufferLocation = g_pVB->GetGPUVirtualAddress() + offset;
vbv.SizeInBytes = g_VertexBufferSize * stride;
vbv.BufferLocation = fr->VertexBuffer->GetGPUVirtualAddress() + offset;
vbv.SizeInBytes = fr->VertexBufferSize * stride;
vbv.StrideInBytes = stride;
ctx->IASetVertexBuffers(0, 1, &vbv);
D3D12_INDEX_BUFFER_VIEW ibv;
memset(&ibv, 0, sizeof(D3D12_INDEX_BUFFER_VIEW));
ibv.BufferLocation = g_pIB->GetGPUVirtualAddress();
ibv.SizeInBytes = g_IndexBufferSize * sizeof(ImDrawIdx);
ibv.BufferLocation = fr->IndexBuffer->GetGPUVirtualAddress();
ibv.SizeInBytes = fr->IndexBufferSize * sizeof(ImDrawIdx);
ibv.Format = sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT;
ctx->IASetIndexBuffer(&ibv);
ctx->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
@ -196,7 +188,7 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
ctx->SetGraphicsRootSignature(g_pRootSignature);
ctx->SetGraphicsRoot32BitConstants(0, 16, &vertex_constant_buffer, 0);
// Setup render state
// Setup blend factor
const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
ctx->OMSetBlendFactor(blend_factor);
@ -212,10 +204,12 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
// User callback (registered via ImDrawList::AddCallback)
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Apply Scissor, Bind texture, Draw
const D3D12_RECT r = { (LONG)(pcmd->ClipRect.x - clip_off.x), (LONG)(pcmd->ClipRect.y - clip_off.y), (LONG)(pcmd->ClipRect.z - clip_off.x), (LONG)(pcmd->ClipRect.w - clip_off.y) };
ctx->SetGraphicsRootDescriptorTable(1, *(D3D12_GPU_DESCRIPTOR_HANDLE*)&pcmd->TextureId);
ctx->RSSetScissorRects(1, &r);
@ -494,9 +488,9 @@ bool ImGui_ImplDX12_CreateDeviceObjects()
// Create the input layout
static D3D12_INPUT_ELEMENT_DESC local_layout[] = {
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (size_t)(&((ImDrawVert*)0)->pos), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (size_t)(&((ImDrawVert*)0)->uv), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (size_t)(&((ImDrawVert*)0)->col), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, IM_OFFSETOF(ImDrawVert, pos), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, IM_OFFSETOF(ImDrawVert, uv), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, IM_OFFSETOF(ImDrawVert, col), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
};
psoDesc.InputLayout = { local_layout, 3 };
}
@ -580,15 +574,17 @@ void ImGui_ImplDX12_InvalidateDeviceObjects()
if (!g_pd3dDevice)
return;
ImGuiIO& io = ImGui::GetIO();
if (g_pVertexShaderBlob) { g_pVertexShaderBlob->Release(); g_pVertexShaderBlob = NULL; }
if (g_pPixelShaderBlob) { g_pPixelShaderBlob->Release(); g_pPixelShaderBlob = NULL; }
if (g_pRootSignature) { g_pRootSignature->Release(); g_pRootSignature = NULL; }
if (g_pPipelineState) { g_pPipelineState->Release(); g_pPipelineState = NULL; }
if (g_pFontTextureResource) { g_pFontTextureResource->Release(); g_pFontTextureResource = NULL; ImGui::GetIO().Fonts->TexID = NULL; } // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.
if (g_pFontTextureResource) { g_pFontTextureResource->Release(); g_pFontTextureResource = NULL; io.Fonts->TexID = NULL; } // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.
for (UINT i = 0; i < g_numFramesInFlight; i++)
{
if (g_pFrameResources[i].IB) { g_pFrameResources[i].IB->Release(); g_pFrameResources[i].IB = NULL; }
if (g_pFrameResources[i].VB) { g_pFrameResources[i].VB->Release(); g_pFrameResources[i].VB = NULL; }
FrameResources* fr = &g_pFrameResources[i];
if (fr->IndexBuffer) { fr->IndexBuffer->Release(); fr->IndexBuffer = NULL; }
if (fr->VertexBuffer) { fr->VertexBuffer->Release(); fr->VertexBuffer = NULL; }
}
}
@ -611,10 +607,11 @@ bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FO
// Create buffers with a default size (they will later be grown as needed)
for (int i = 0; i < num_frames_in_flight; i++)
{
g_pFrameResources[i].IB = NULL;
g_pFrameResources[i].VB = NULL;
g_pFrameResources[i].VertexBufferSize = 5000;
g_pFrameResources[i].IndexBufferSize = 10000;
FrameResources* fr = &g_pFrameResources[i];
fr->IndexBuffer = NULL;
fr->VertexBuffer = NULL;
fr->IndexBufferSize = 10000;
fr->VertexBufferSize = 5000;
}
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
@ -628,10 +625,10 @@ void ImGui_ImplDX12_Shutdown()
ImGui_ImplDX12_ShutdownPlatformInterface();
ImGui_ImplDX12_InvalidateDeviceObjects();
delete[] g_pFrameResources;
g_pFrameResources = NULL;
g_pd3dDevice = NULL;
g_hFontSrvCpuDescHandle.ptr = 0;
g_hFontSrvGpuDescHandle.ptr = 0;
g_pFrameResources = NULL;
g_numFramesInFlight = 0;
g_frameIndex = UINT_MAX;
}

22
examples/imgui_impl_dx9.cpp
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@ -12,6 +12,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2019-03-29: Misc: Fixed erroneous assert in ImGui_ImplDX9_InvalidateDeviceObjects().
// 2019-01-16: Misc: Disabled fog before drawing UI's. Fixes issue #2288.
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-06-08: Misc: Extracted imgui_impl_dx9.cpp/.h away from the old combined DX9+Win32 example.
@ -265,24 +266,9 @@ void ImGui_ImplDX9_InvalidateDeviceObjects()
{
if (!g_pd3dDevice)
return;
if (g_pVB)
{
g_pVB->Release();
g_pVB = NULL;
}
if (g_pIB)
{
g_pIB->Release();
g_pIB = NULL;
}
// At this point note that we set ImGui::GetIO().Fonts->TexID to be == g_FontTexture, so clear both.
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(g_FontTexture == io.Fonts->TexID);
if (g_FontTexture)
g_FontTexture->Release();
g_FontTexture = NULL;
io.Fonts->TexID = NULL;
if (g_pVB) { g_pVB->Release(); g_pVB = NULL; }
if (g_pIB) { g_pIB->Release(); g_pIB = NULL; }
if (g_FontTexture) { g_FontTexture->Release(); g_FontTexture = NULL; ImGui::GetIO().Fonts->TexID = NULL; } // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.
}
void ImGui_ImplDX9_NewFrame()

50
examples/imgui_impl_opengl3.cpp
View File

@ -14,6 +14,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2019-03-29: OpenGL: Not calling glBindBuffer more than necessary in the render loop.
// 2019-03-15: OpenGL: Added a dummy GL call + comments in ImGui_ImplOpenGL3_Init() to detect uninitialized GL function loaders early.
// 2019-03-03: OpenGL: Fix support for ES 2.0 (WebGL 1.0).
// 2019-02-20: OpenGL: Fix for OSX not supporting OpenGL 4.5, we don't try to read GL_CLIP_ORIGIN even if defined by the headers/loader.
@ -106,8 +107,8 @@
static char g_GlslVersionString[32] = "";
static GLuint g_FontTexture = 0;
static GLuint g_ShaderHandle = 0, g_VertHandle = 0, g_FragHandle = 0;
static int g_AttribLocationTex = 0, g_AttribLocationProjMtx = 0;
static int g_AttribLocationPosition = 0, g_AttribLocationUV = 0, g_AttribLocationColor = 0;
static int g_AttribLocationTex = 0, g_AttribLocationProjMtx = 0; // Uniforms location
static int g_AttribLocationVtxPos = 0, g_AttribLocationVtxUV = 0, g_AttribLocationVtxColor = 0; // Vertex attributes location
static unsigned int g_VboHandle = 0, g_ElementsHandle = 0;
// Forward Declarations
@ -182,7 +183,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
#endif
GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
#ifndef IMGUI_IMPL_OPENGL_ES2
GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
GLint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array_object);
#endif
#ifdef GL_POLYGON_MODE
GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
@ -238,20 +239,23 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
glBindSampler(0, 0); // We use combined texture/sampler state. Applications using GL 3.3 may set that otherwise.
#endif
// Recreate the VAO every time (this is to easily allow multiple GL contexts to be rendered to. VAO are not shared among GL contexts)
// The renderer would actually work without any VAO bound, but then our VertexAttrib calls would overwrite the default one currently bound.
#ifndef IMGUI_IMPL_OPENGL_ES2
// Recreate the VAO every time
// (This is to easily allow multiple GL contexts. VAO are not shared among GL contexts, and we don't track creation/deletion of windows so we don't have an obvious key to use to cache them.)
GLuint vao_handle = 0;
glGenVertexArrays(1, &vao_handle);
glBindVertexArray(vao_handle);
GLuint vertex_array_object = 0;
glGenVertexArrays(1, &vertex_array_object);
glBindVertexArray(vertex_array_object);
#endif
// Bind vertex/index buffers and setup attributes for ImDrawVert
glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
glEnableVertexAttribArray(g_AttribLocationPosition);
glEnableVertexAttribArray(g_AttribLocationUV);
glEnableVertexAttribArray(g_AttribLocationColor);
glVertexAttribPointer(g_AttribLocationPosition, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, pos));
glVertexAttribPointer(g_AttribLocationUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, uv));
glVertexAttribPointer(g_AttribLocationColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, col));
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle);
glEnableVertexAttribArray(g_AttribLocationVtxPos);
glEnableVertexAttribArray(g_AttribLocationVtxUV);
glEnableVertexAttribArray(g_AttribLocationVtxColor);
glVertexAttribPointer(g_AttribLocationVtxPos, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, pos));
glVertexAttribPointer(g_AttribLocationVtxUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, uv));
glVertexAttribPointer(g_AttribLocationVtxColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, col));
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
@ -263,10 +267,8 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
const ImDrawList* cmd_list = draw_data->CmdLists[n];
size_t idx_buffer_offset = 0;
glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
// Upload vertex/index buffers
glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.Size * sizeof(ImDrawVert), (const GLvoid*)cmd_list->VtxBuffer.Data, GL_STREAM_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx), (const GLvoid*)cmd_list->IdxBuffer.Data, GL_STREAM_DRAW);
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
@ -292,7 +294,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
if (clip_origin_lower_left)
glScissor((int)clip_rect.x, (int)(fb_height - clip_rect.w), (int)(clip_rect.z - clip_rect.x), (int)(clip_rect.w - clip_rect.y));
else
glScissor((int)clip_rect.x, (int)clip_rect.y, (int)clip_rect.z, (int)clip_rect.w); // Support for GL 4.5's glClipControl(GL_UPPER_LEFT)
glScissor((int)clip_rect.x, (int)clip_rect.y, (int)clip_rect.z, (int)clip_rect.w); // Support for GL 4.5 rarely used glClipControl(GL_UPPER_LEFT)
// Bind texture, Draw
glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->TextureId);
@ -302,8 +304,10 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
idx_buffer_offset += pcmd->ElemCount * sizeof(ImDrawIdx);
}
}
// Destroy the temporary VAO
#ifndef IMGUI_IMPL_OPENGL_ES2
glDeleteVertexArrays(1, &vao_handle);
glDeleteVertexArrays(1, &vertex_array_object);
#endif
// Restore modified GL state
@ -314,7 +318,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
#endif
glActiveTexture(last_active_texture);
#ifndef IMGUI_IMPL_OPENGL_ES2
glBindVertexArray(last_vertex_array);
glBindVertexArray(last_vertex_array_object);
#endif
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
@ -566,9 +570,9 @@ bool ImGui_ImplOpenGL3_CreateDeviceObjects()
g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "Texture");
g_AttribLocationProjMtx = glGetUniformLocation(g_ShaderHandle, "ProjMtx");
g_AttribLocationPosition = glGetAttribLocation(g_ShaderHandle, "Position");
g_AttribLocationUV = glGetAttribLocation(g_ShaderHandle, "UV");
g_AttribLocationColor = glGetAttribLocation(g_ShaderHandle, "Color");
g_AttribLocationVtxPos = glGetAttribLocation(g_ShaderHandle, "Position");
g_AttribLocationVtxUV = glGetAttribLocation(g_ShaderHandle, "UV");
g_AttribLocationVtxColor = glGetAttribLocation(g_ShaderHandle, "Color");
// Create buffers
glGenBuffers(1, &g_VboHandle);

18
examples/imgui_impl_vulkan.cpp
View File

@ -14,6 +14,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2019-04-01: Vulkan: Support for 32-bit index buffer (#define ImDrawIdx unsigned int).
// 2019-02-16: Vulkan: Viewport and clipping rectangles correctly using draw_data->FramebufferScale to allow retina display.
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-08-25: Vulkan: Fixed mishandled VkSurfaceCapabilitiesKHR::maxImageCount=0 case.
@ -216,17 +217,17 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
VkResult err;
FrameDataForRender* fd = &g_FramesDataBuffers[g_FrameIndex];
g_FrameIndex = (g_FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
g_FrameIndex = (g_FrameIndex + 1) % IM_ARRAYSIZE(g_FramesDataBuffers);
// Create the Vertex and Index buffers:
size_t vertex_size = draw_data->TotalVtxCount * sizeof(ImDrawVert);
size_t index_size = draw_data->TotalIdxCount * sizeof(ImDrawIdx);
if (!fd->VertexBuffer || fd->VertexBufferSize < vertex_size)
if (fd->VertexBuffer == VK_NULL_HANDLE || fd->VertexBufferSize < vertex_size)
CreateOrResizeBuffer(fd->VertexBuffer, fd->VertexBufferMemory, fd->VertexBufferSize, vertex_size, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT);
if (!fd->IndexBuffer || fd->IndexBufferSize < index_size)
if (fd->IndexBuffer == VK_NULL_HANDLE || fd->IndexBufferSize < index_size)
CreateOrResizeBuffer(fd->IndexBuffer, fd->IndexBufferMemory, fd->IndexBufferSize, index_size, VK_BUFFER_USAGE_INDEX_BUFFER_BIT);
// Upload Vertex and index Data:
// Upload vertex/index data into a single contiguous GPU buffer
{
ImDrawVert* vtx_dst = NULL;
ImDrawIdx* idx_dst = NULL;
@ -267,7 +268,7 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
VkBuffer vertex_buffers[1] = { fd->VertexBuffer };
VkDeviceSize vertex_offset[1] = { 0 };
vkCmdBindVertexBuffers(command_buffer, 0, 1, vertex_buffers, vertex_offset);
vkCmdBindIndexBuffer(command_buffer, fd->IndexBuffer, 0, VK_INDEX_TYPE_UINT16);
vkCmdBindIndexBuffer(command_buffer, fd->IndexBuffer, 0, sizeof(ImDrawIdx) == 2 ? VK_INDEX_TYPE_UINT16 : VK_INDEX_TYPE_UINT32);
}
// Setup viewport:
@ -310,6 +311,7 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
// User callback (registered via ImDrawList::AddCallback)
pcmd->UserCallback(cmd_list, pcmd);
}
else
@ -697,7 +699,7 @@ void ImGui_ImplVulkan_InvalidateDeviceObjects()
{
ImGui_ImplVulkan_InvalidateFontUploadObjects();
for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
for (int i = 0; i < IM_ARRAYSIZE(g_FramesDataBuffers); i++)
{
FrameDataForRender* fd = &g_FramesDataBuffers[i];
if (fd->VertexBuffer) { vkDestroyBuffer (g_Device, fd->VertexBuffer, g_Allocator); fd->VertexBuffer = VK_NULL_HANDLE; }
@ -876,7 +878,7 @@ void ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(VkPhysicalDevice physical_
// Create Command Buffers
VkResult err;
for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
for (int i = 0; i < IM_ARRAYSIZE(wd->Frames); i++)
{
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[i];
{
@ -1077,7 +1079,7 @@ void ImGui_ImplVulkanH_DestroyWindowData(VkInstance instance, VkDevice device, I
vkDeviceWaitIdle(device); // FIXME: We could wait on the Queue if we had the queue in wd-> (otherwise VulkanH functions can't use globals)
//vkQueueWaitIdle(g_Queue);
for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
for (int i = 0; i < IM_ARRAYSIZE(wd->Frames); i++)
{
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[i];
vkDestroyFence(device, fd->Fence, allocator);