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Fujiwara
2024-11-15 22:36:57 +03:00
parent 1975bea466
commit 78954bec7e
22 changed files with 27249 additions and 0 deletions
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example_win32_directx9/blur.cpp Normal file
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#include "blur.hpp"
#include "blur_binary.h"
static IDirect3DSurface9* rtBackup = nullptr;
static IDirect3DPixelShader9* blurShaderX = nullptr;
static IDirect3DPixelShader9* blurShaderY = nullptr;
static IDirect3DTexture9* blurTexture = nullptr;
static int backbufferWidth = 0;
static int backbufferHeight = 0;
static void BeginBlur(const ImDrawList* parent_list, const ImDrawCmd* cmd)
{
const auto device = reinterpret_cast<IDirect3DDevice9*>(cmd->UserCallbackData);
if (!blurShaderX)
{
device->CreatePixelShader(reinterpret_cast<const DWORD*>(blur_x.data()), &blurShaderX);
}
if (!blurShaderY)
{
device->CreatePixelShader(reinterpret_cast<const DWORD*>(blur_y.data()), &blurShaderY);
}
IDirect3DSurface9* backBuffer;
device->GetBackBuffer(0, 0, D3DBACKBUFFER_TYPE_MONO, &backBuffer);
D3DSURFACE_DESC desc;
backBuffer->GetDesc(&desc);
if (backbufferWidth != desc.Width || backbufferHeight != desc.Height)
{
if (blurTexture)
blurTexture->Release();
backbufferWidth = desc.Width;
backbufferHeight = desc.Height;
device->CreateTexture(desc.Width, desc.Height, 1, D3DUSAGE_RENDERTARGET, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &blurTexture, nullptr);
}
device->GetRenderTarget(0, &rtBackup);
{
IDirect3DSurface9* surface;
blurTexture->GetSurfaceLevel(0, &surface);
device->StretchRect(backBuffer, NULL, surface, NULL, D3DTEXF_NONE);
device->SetRenderTarget(0, surface);
surface->Release();
}
backBuffer->Release();
device->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP);
device->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP);
}
static void FirstBlurPass(const ImDrawList* parent_list, const ImDrawCmd* cmd)
{
const auto device = reinterpret_cast<IDirect3DDevice9*>(cmd->UserCallbackData);
device->SetPixelShader(blurShaderX);
const float params[4] = { 1.0f / backbufferWidth };
device->SetPixelShaderConstantF(0, params, 1);
}
static void SecondBlurPass(const ImDrawList* parent_list, const ImDrawCmd* cmd)
{
const auto device = reinterpret_cast<IDirect3DDevice9*>(cmd->UserCallbackData);
device->SetPixelShader(blurShaderY);
const float params[4] = { 1.0f / backbufferHeight };
device->SetPixelShaderConstantF(0, params, 1);
}
static void EndBlur(const ImDrawList* parent_list, const ImDrawCmd* cmd)
{
const auto device = reinterpret_cast<IDirect3DDevice9*>(cmd->UserCallbackData);
device->SetRenderTarget(0, rtBackup);
rtBackup->Release();
device->SetPixelShader(nullptr);
device->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_WRAP);
device->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_WRAP);
}
inline void DrawBackgroundBlur(ImDrawList* drawList, IDirect3DDevice9* device)
{
drawList->AddCallback(BeginBlur, device);
for (int i = 0; i < 8; ++i) {
drawList->AddCallback(FirstBlurPass, device);
drawList->AddImage(blurTexture, { 0.0f, 0.0f }, { backbufferWidth * 1.0f, backbufferHeight * 1.0f });
drawList->AddCallback(SecondBlurPass, device);
drawList->AddImage(blurTexture, { 0.0f, 0.0f }, { backbufferWidth * 1.0f, backbufferHeight * 1.0f });
}
drawList->AddCallback(EndBlur, device);
drawList->AddImageRounded(blurTexture, { 0.0f, 0.0f }, { backbufferWidth * 1.0f, backbufferHeight * 1.0f }, { 0.0f, 0.0f }, { 1.0f, 1.0f }, IM_COL32(255, 255, 255, 255), 7.f);
}