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Examples: DirectX9: fixed size passed to vertex and index buffer Lock() + readjust default buffer sizes.

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features/sdl_renderer3_multiviewports
ocornut ago%!(EXTRA string=10 years)
parent 56553f33b8
commit 8b4a470e1d
2 changed files with 6 additions and 6 deletions
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  1. 4
      examples/directx11_example/imgui_impl_dx11.cpp
  2. 8
      examples/directx9_example/imgui_impl_dx9.cpp

4
examples/directx11_example/imgui_impl_dx11.cpp
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@ -29,8 +29,8 @@ static ID3D11SamplerState* g_pFontSampler = NULL;
static ID3D11ShaderResourceView*g_pFontTextureView = NULL;
static ID3D11RasterizerState* g_pRasterizerState = NULL;
static ID3D11BlendState* g_pBlendState = NULL;
static int VERTEX_BUFFER_SIZE = 30000; // TODO: Make buffers smaller and grow dynamically as needed.
static int INDEX_BUFFER_SIZE = 30000; // TODO: Make buffers smaller and grow dynamically as needed.
static int VERTEX_BUFFER_SIZE = 20000; // TODO: Make buffers smaller and grow dynamically as needed.
static int INDEX_BUFFER_SIZE = 40000; // TODO: Make buffers smaller and grow dynamically as needed.
struct VERTEX_CONSTANT_BUFFER
{

8
examples/directx9_example/imgui_impl_dx9.cpp
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@ -16,8 +16,8 @@ static INT64 g_TicksPerSecond = 0;
static LPDIRECT3DDEVICE9 g_pd3dDevice = NULL;
static LPDIRECT3DVERTEXBUFFER9 g_pVB = NULL;
static LPDIRECT3DINDEXBUFFER9 g_pIB = NULL;
static int VERTEX_BUFFER_SIZE = 30000; // TODO: Make buffers smaller and grow dynamically as needed.
static int INDEX_BUFFER_SIZE = 30000; // TODO: Make buffers smaller and grow dynamically as needed.
static int VERTEX_BUFFER_SIZE = 20000; // TODO: Make buffers smaller and grow dynamically as needed.
static int INDEX_BUFFER_SIZE = 40000; // TODO: Make buffers smaller and grow dynamically as needed.
struct CUSTOMVERTEX
{
@ -45,9 +45,9 @@ static void ImGui_ImplDX9_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_
// Copy and convert all vertices into a single contiguous buffer
CUSTOMVERTEX* vtx_dst;
ImDrawIdx* idx_dst;
if (g_pVB->Lock(0, (UINT)total_vtx_count, (void**)&vtx_dst, D3DLOCK_DISCARD) < 0)
if (g_pVB->Lock(0, (UINT)(total_vtx_count * sizeof(CUSTOMVERTEX)), (void**)&vtx_dst, D3DLOCK_DISCARD) < 0)
return;
if (g_pIB->Lock(0, (UINT)total_idx_count, (void**)&idx_dst, D3DLOCK_DISCARD) < 0)
if (g_pIB->Lock(0, (UINT)(total_idx_count * sizeof(ImDrawIdx)), (void**)&idx_dst, D3DLOCK_DISCARD) < 0)
return;
for (int n = 0; n < cmd_lists_count; n++)
{

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