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authordscho <dscho>2006-04-27 01:01:41 +0000
committerdscho <dscho>2006-04-27 01:01:41 +0000
commit21b1fd476fb9a3e3bc52097af6ea21fda0e09a46 (patch)
tree06d57c0a60e2a22655e3ee371154b9201469d394 /examples
parent6370f25f136d837b66f56080e34e7773e6e020c9 (diff)
downloadlibvncserver-21b1fd476fb9a3e3bc52097af6ea21fda0e09a46.zip
libvncserver-21b1fd476fb9a3e3bc52097af6ea21fda0e09a46.tar.gz
add rotate and flip example
Diffstat (limited to 'examples')
-rw-r--r--examples/.cvsignore3
-rw-r--r--examples/Makefile.am2
-rw-r--r--examples/pnmshow.c2
-rw-r--r--examples/rotate.c92
-rw-r--r--examples/rotatetemplate.c52
5 files changed, 149 insertions, 2 deletions
diff --git a/examples/.cvsignore b/examples/.cvsignore
index 7d110e0..88ce9f4 100644
--- a/examples/.cvsignore
+++ b/examples/.cvsignore
@@ -14,4 +14,5 @@ colourmaptest
regiontest
mac
filetransfer
-
+backchannel
+rotate
diff --git a/examples/Makefile.am b/examples/Makefile.am
index 5c14e12..a705fe5 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -18,5 +18,5 @@ noinst_HEADERS=radon.h
noinst_PROGRAMS=example pnmshow regiontest pnmshow24 fontsel \
vncev storepasswd colourmaptest simple simple15 $(MAC) \
- $(FILETRANSFER) backchannel $(BLOOPTEST) camera
+ $(FILETRANSFER) backchannel $(BLOOPTEST) camera rotate
diff --git a/examples/pnmshow.c b/examples/pnmshow.c
index 9e4a509..6268577 100644
--- a/examples/pnmshow.c
+++ b/examples/pnmshow.c
@@ -2,11 +2,13 @@
#include <rfb/rfb.h>
#include <rfb/keysym.h>
+#ifndef HAVE_HANDLEKEY
static void HandleKey(rfbBool down,rfbKeySym key,rfbClientPtr cl)
{
if(down && (key==XK_Escape || key=='q' || key=='Q'))
rfbCloseClient(cl);
}
+#endif
int main(int argc,char** argv)
{
diff --git a/examples/rotate.c b/examples/rotate.c
new file mode 100644
index 0000000..66fca80
--- /dev/null
+++ b/examples/rotate.c
@@ -0,0 +1,92 @@
+#include <stdio.h>
+#include <rfb/rfb.h>
+#include <rfb/keysym.h>
+
+static int gcd(int x, int y)
+{
+ if (x == 0)
+ return y;
+ return gcd((y % x), x);
+}
+
+#define CONCAT2(a,b) a##b
+#define CONCAT2E(a,b) CONCAT2(a,b)
+#define CONCAT3(a,b,c) a##b##c
+#define CONCAT3E(a,b,c) CONCAT3(a,b,c)
+
+#define FUNCNAME rfbRotate
+#define FUNC(i, j) (h - 1 - j + i * h)
+#define SWAPDIMENSIONS
+#define OUT 8
+#include "rotatetemplate.c"
+#define OUT 16
+#include "rotatetemplate.c"
+#define OUT 32
+#include "rotatetemplate.c"
+#undef FUNCNAME
+#undef FUNC
+
+#define FUNCNAME rfbRotateCounterClockwise
+#define FUNC(i, j) (j + (w - 1 - i) * h)
+#define OUT 8
+#include "rotatetemplate.c"
+#define OUT 16
+#include "rotatetemplate.c"
+#define OUT 32
+#include "rotatetemplate.c"
+#undef FUNCNAME
+#undef FUNC
+#undef SWAPDIMENSIONS
+
+#define FUNCNAME rfbFlipHorizontally
+#define FUNC(i, j) ((w - 1 - i) + j * w)
+#define OUT 8
+#include "rotatetemplate.c"
+#define OUT 16
+#include "rotatetemplate.c"
+#define OUT 32
+#include "rotatetemplate.c"
+#undef FUNCNAME
+#undef FUNC
+
+#define FUNCNAME rfbFlipVertically
+#define FUNC(i, j) (i + (h - 1 - j) * w)
+#define OUT 8
+#include "rotatetemplate.c"
+#define OUT 16
+#include "rotatetemplate.c"
+#define OUT 32
+#include "rotatetemplate.c"
+#undef FUNCNAME
+#undef FUNC
+
+#define FUNCNAME rfbRotateHundredAndEighty
+#define FUNC(i, j) ((w - 1 - i) + (h - 1 - j) * w)
+#define OUT 8
+#include "rotatetemplate.c"
+#define OUT 16
+#include "rotatetemplate.c"
+#define OUT 32
+#include "rotatetemplate.c"
+#undef FUNCNAME
+#undef FUNC
+
+static void HandleKey(rfbBool down,rfbKeySym key,rfbClientPtr cl)
+{
+ if(down) {
+ if (key==XK_Escape || key=='q' || key=='Q')
+ rfbCloseClient(cl);
+ else if (key == 'r')
+ rfbRotate(cl->screen);
+ else if (key == 'R')
+ rfbRotateCounterClockwise(cl->screen);
+ else if (key == 'f')
+ rfbFlipHorizontally(cl->screen);
+ else if (key == 'F')
+ rfbFlipVertically(cl->screen);
+ }
+}
+
+#define HAVE_HANDLEKEY
+#include "pnmshow.c"
+
diff --git a/examples/rotatetemplate.c b/examples/rotatetemplate.c
new file mode 100644
index 0000000..57dc052
--- /dev/null
+++ b/examples/rotatetemplate.c
@@ -0,0 +1,52 @@
+#define OUT_T CONCAT3E(uint,OUT,_t)
+#define FUNCTION CONCAT2E(FUNCNAME,OUT)
+
+static void FUNCTION(rfbScreenInfoPtr screen)
+{
+ OUT_T* buffer = (OUT_T*)screen->frameBuffer;
+ int i, j, w = screen->width, h = screen->height;
+ OUT_T* newBuffer = (OUT_T*)malloc(w * h * sizeof(OUT_T));
+
+ for (j = 0; j < h; j++)
+ for (i = 0; i < w; i++)
+ newBuffer[FUNC(i, j)] = buffer[i + j * w];
+
+ memcpy(buffer, newBuffer, w * h * sizeof(OUT_T));
+ free(newBuffer);
+
+#ifdef SWAPDIMENSIONS
+ screen->width = h;
+ screen->paddedWidthInBytes = h * OUT / 8;
+ screen->height = w;
+
+ {
+ rfbClientIteratorPtr iterator;
+ rfbClientPtr cl;
+ iterator = rfbGetClientIterator(screen);
+ while ((cl = rfbClientIteratorNext(iterator)) != NULL)
+ cl->newFBSizePending = 1;
+ }
+#endif
+
+ rfbMarkRectAsModified(screen, 0, 0, screen->width, screen->height);
+}
+
+#if OUT == 32
+void FUNCNAME(rfbScreenInfoPtr screen) {
+ if (screen->serverFormat.bitsPerPixel == 32)
+ CONCAT2E(FUNCNAME,32)(screen);
+ else if (screen->serverFormat.bitsPerPixel == 16)
+ CONCAT2E(FUNCNAME,16)(screen);
+ else if (screen->serverFormat.bitsPerPixel == 8)
+ CONCAT2E(FUNCNAME,8)(screen);
+ else {
+ rfbErr("Unsupported pixel depth: %d\n",
+ screen->serverFormat.bitsPerPixel);
+ return;
+ }
+}
+#endif
+
+#undef FUNCTION
+#undef OUT
+
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