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Add benchmarks for wxImage and raw bitmap access to the graphics test.

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Compare the speed of drawing the bitmaps by synthesizing wxImage and
converting it to wxBitmap and directly modifying wxBitmap bits using raw
bitmap access.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73471 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2013-02-05 20:47:02 +00:00
parent 8c14cbc98c
commit e45606e991
1 changed files with 94 additions and 3 deletions
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97
tests/benchmarks/graphics.cpp
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@ -14,6 +14,8 @@
#include "wx/dcclient.h"
#include "wx/dcmemory.h"
#include "wx/dcgraph.h"
#include "wx/image.h"
#include "wx/rawbmp.h"
#include "wx/stopwatch.h"
#include "wx/crt.h"
@ -30,7 +32,9 @@ struct GraphicsBenchmarkOptions
numLines = 10000;
testBitmaps =
testImages =
testLines =
testRawBitmaps =
testRectangles = false;
usePaint =
@ -48,7 +52,9 @@ struct GraphicsBenchmarkOptions
numLines;
bool testBitmaps,
testImages,
testLines,
testRawBitmaps,
testRectangles;
bool usePaint,
@ -112,9 +118,11 @@ private:
void BenchmarkAll(const wxString& msg, wxDC& dc)
{
BenchmarkLines(msg, dc);
BenchmarkRectangles(msg, dc);
BenchmarkBitmaps(msg, dc);
BenchmarkImages(msg, dc);
BenchmarkLines(msg, dc);
BenchmarkRawBitmaps(msg, dc);
BenchmarkRectangles(msg, dc);
}
void BenchmarkLines(const wxString& msg, wxDC& dc)
@ -209,6 +217,82 @@ private:
opts.numLines, t, (1000. * t)/opts.numLines);
}
void BenchmarkImages(const wxString& msg, wxDC& dc)
{
if ( !opts.testImages )
return;
if ( opts.mapMode != 0 )
dc.SetMapMode((wxMappingMode)opts.mapMode);
wxPrintf("Benchmarking %s: ", msg);
fflush(stdout);
wxImage image(wxSize(opts.width, opts.height), false /* don't clear */);
wxStopWatch sw;
const int numImages = opts.numLines;
for ( int n = 0; n < numImages; n++ )
{
image.Clear(n % 256);
dc.DrawBitmap(image, 0, 0);
}
const long t = sw.Time();
wxPrintf("%ld images done in %ldms = %gus/image or %d FPS\n",
numImages, t, (1000. * t)/numImages,
(1000*numImages + t - 1)/t);
}
void BenchmarkRawBitmaps(const wxString& msg, wxDC& dc)
{
if ( !opts.testRawBitmaps )
return;
if ( opts.mapMode != 0 )
dc.SetMapMode((wxMappingMode)opts.mapMode);
wxPrintf("Benchmarking %s: ", msg);
fflush(stdout);
wxBitmap bitmap(opts.width, opts.height, 24);
wxNativePixelData data(bitmap);
wxStopWatch sw;
const int numImages = opts.numLines;
for ( int n = 0; n < numImages; n++ )
{
const unsigned char c = n % 256;
{
wxNativePixelData::Iterator p(data);
for ( int y = 0; y < opts.height; ++y )
{
wxNativePixelData::Iterator rowStart = p;
for ( int x = 0; x < opts.width; ++x )
{
p.Red() =
p.Green() =
p.Blue() = c;
++p;
}
p = rowStart;
p.OffsetY(data, 1);
}
}
dc.DrawBitmap(bitmap, 0, 0);
}
const long t = sw.Time();
wxPrintf("%ld raw bitmaps done in %ldms = %gus/bitmap or %d FPS\n",
numImages, t, (1000. * t)/numImages,
(1000*numImages + t - 1)/t);
}
wxBitmap m_bitmap;
};
@ -221,7 +305,9 @@ public:
static const wxCmdLineEntryDesc desc[] =
{
{ wxCMD_LINE_SWITCH, "", "bitmaps" },
{ wxCMD_LINE_SWITCH, "", "images" },
{ wxCMD_LINE_SWITCH, "", "lines" },
{ wxCMD_LINE_SWITCH, "", "rawbmp" },
{ wxCMD_LINE_SWITCH, "", "rectangles" },
{ wxCMD_LINE_SWITCH, "", "paint" },
{ wxCMD_LINE_SWITCH, "", "client" },
@ -254,13 +340,18 @@ public:
return false;
opts.testBitmaps = parser.Found("bitmaps");
opts.testImages = parser.Found("images");
opts.testLines = parser.Found("lines");
opts.testRawBitmaps = parser.Found("rawbmp");
opts.testRectangles = parser.Found("rectangles");
if ( !(opts.testBitmaps || opts.testLines || opts.testRectangles) )
if ( !(opts.testBitmaps || opts.testImages || opts.testLines
|| opts.testRawBitmaps || opts.testRectangles) )
{
// Do everything by default.
opts.testBitmaps =
opts.testImages =
opts.testLines =
opts.testRawBitmaps =
opts.testRectangles = true;
}