151 lines
3.6 KiB
C++
151 lines
3.6 KiB
C++
#include "stdafx.h"
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#include "ColourTesterImageCtrl.h"
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#include "ColourTester.h"
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#ifdef _MSC_VER
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# ifndef NDEBUG
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# pragma comment(lib, "DevIL_DBG.lib")
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# pragma comment(lib, "DevILU_DBG.lib")
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# else
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# pragma comment(lib, "DevIL.lib")
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# pragma comment(lib, "DevILU.lib")
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# endif
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#endif
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#include "IL/il.h"
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#include "IL/ilu.h"
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BEGIN_EVENT_TABLE(ColourTesterImageCtrl, wxWindow)
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EVT_PAINT(ColourTesterImageCtrl::OnPaint)
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END_EVENT_TABLE()
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ColourTesterImageCtrl::ColourTesterImageCtrl(wxWindow* parent)
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: wxWindow(parent, wxID_ANY),
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m_Valid(false), m_ZoomAmount(1)
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{
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m_Colour[0] = 255;
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m_Colour[1] = 0;
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m_Colour[2] = 0;
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ilInit();
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ilGenImages(1, (ILuint*)&m_OriginalImage);
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ilSetInteger(IL_KEEP_DXTC_DATA, IL_TRUE);
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}
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void ColourTesterImageCtrl::SetImageFile(const wxFileName& fn)
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{
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ilBindImage(m_OriginalImage);
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ilOriginFunc(IL_ORIGIN_UPPER_LEFT);
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ilEnable(IL_ORIGIN_SET);
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if (! ilLoadImage((TCHAR*)fn.GetFullPath().c_str()))
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{
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m_Valid = false;
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Refresh();
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return;
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}
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m_Valid = true;
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m_DxtcFormat = ilGetInteger(IL_DXTC_DATA_FORMAT);
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ilConvertImage(IL_RGBA, IL_UNSIGNED_BYTE);
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// TODO: Check for IL errors
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{
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// I'm too lazy to add zoom buttons, so just use 2x zoom for <=256x256 images
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ILinfo info;
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iluGetImageInfo(&info);
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if (info.Width <= 256 && info.Height <= 256)
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m_ZoomAmount = 2;
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else
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m_ZoomAmount = 1;
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}
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CalculateImage();
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// Send an event to indicate that the image has changed, so that
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// the status-bar text can be updated
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wxCommandEvent evt(wxEVT_MY_IMAGE_CHANGED);
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evt.SetEventObject(this);
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evt.SetString(fn.GetFullPath());
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GetEventHandler()->ProcessEvent(evt);
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}
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wxString ColourTesterImageCtrl::GetImageFiletype()
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{
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wxString fmt = _("Not DXTC");
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switch (ilGetInteger(IL_DXTC_DATA_FORMAT)) {
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case IL_DXT1: fmt = _T("DXT1"); break;
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case IL_DXT2: fmt = _T("DXT2"); break;
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case IL_DXT3: fmt = _T("DXT3"); break;
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case IL_DXT4: fmt = _T("DXT4"); break;
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case IL_DXT5: fmt = _T("DXT5"); break;
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}
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return wxString::Format(_T("%s - %dx%d"), fmt, ilGetInteger(IL_IMAGE_WIDTH), ilGetInteger(IL_IMAGE_HEIGHT));
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}
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void ColourTesterImageCtrl::SetColour(const wxColour& colour)
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{
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m_Colour[0] = colour.Red();
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m_Colour[1] = colour.Green();
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m_Colour[2] = colour.Blue();
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CalculateImage();
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}
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void ColourTesterImageCtrl::SetZoom(int amount)
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{
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m_ZoomAmount = amount;
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CalculateImage();
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}
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void ColourTesterImageCtrl::CalculateImage()
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{
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if (! m_Valid)
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return;
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ilBindImage(m_OriginalImage);
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ILubyte* data = ilGetData();
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ILinfo info;
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iluGetImageInfo(&info);
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wxASSERT(info.Bpp == 4);
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unsigned char* newData = (unsigned char*)malloc(info.Width*info.Height*3);
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// wxImage desires malloc, not new[]
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for (ILubyte *p0 = data, *p1 = newData;
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p0 < data+info.Width*info.Height*4;
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p0 += 4, p1 += 3)
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{
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// Interpolate between texture and texture*colour, so
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// new = old*alpha + old*colour*(1-alpha)
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float alpha = p0[3]/255.f;
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p1[0] = p0[0]*alpha + p0[0]*m_Colour[0]*(1.f-alpha)/255.f;
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p1[1] = p0[1]*alpha + p0[1]*m_Colour[1]*(1.f-alpha)/255.f;
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p1[2] = p0[2]*alpha + p0[2]*m_Colour[2]*(1.f-alpha)/255.f;
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}
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m_FinalImage.SetData(newData, info.Width, info.Height);
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if (m_ZoomAmount != 1)
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m_FinalImage = m_FinalImage.Scale(info.Width*m_ZoomAmount, info.Height*m_ZoomAmount);
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m_FinalBitmap = wxBitmap(m_FinalImage);
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Refresh();
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}
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void ColourTesterImageCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
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{
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wxPaintDC dc(this);
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dc.Clear();
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if (m_Valid && m_FinalBitmap.Ok())
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dc.DrawBitmap(m_FinalBitmap, 0, 0);
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}
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