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authorftrapero <frantracer@gmail.com>2017-06-15 14:15:08 +0200
committerftrapero <frantracer@gmail.com>2017-06-15 14:15:08 +0200
commit459021c165c7023ee75f524060ca270985b547c1 (patch)
treeed3dfb281a1c00a9cf59ebf9d165e5a7a0f346bf /nx-X11/extras/Mesa_6.4.1/progs/xdemos/yuvrect_client.c
parent4f216e7cf7571885f2995433580c9a3ec068eef4 (diff)
parent8667d4d97a3e958a7f63c18c34a62469ba5d2079 (diff)
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Include mesa-6.4.1 project
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.1/progs/xdemos/yuvrect_client.c')
-rw-r--r--nx-X11/extras/Mesa_6.4.1/progs/xdemos/yuvrect_client.c326
1 files changed, 326 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/xdemos/yuvrect_client.c b/nx-X11/extras/Mesa_6.4.1/progs/xdemos/yuvrect_client.c
new file mode 100644
index 000000000..48f82cb75
--- /dev/null
+++ b/nx-X11/extras/Mesa_6.4.1/progs/xdemos/yuvrect_client.c
@@ -0,0 +1,326 @@
+/*
+ * Test the GL_NV_texture_rectangle and GL_MESA_ycrcb_texture extensions and GLX_MESA_allocate-memory
+ *
+ * Dave Airlie - Feb 2005
+ */
+
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glx.h>
+
+#include "../util/readtex.c" /* I know, this is a hack. */
+
+#define TEXTURE_FILE "../images/girl2.rgb"
+
+static GLfloat Xrot = 0, Yrot = 0, Zrot = 0;
+static GLint ImgWidth, ImgHeight;
+static GLushort *ImageYUV = NULL;
+static void *glx_memory;
+
+static void DrawObject(void)
+{
+ glBegin(GL_QUADS);
+
+ glTexCoord2f(0, 0);
+ glVertex2f(-1.0, -1.0);
+
+ glTexCoord2f(ImgWidth, 0);
+ glVertex2f(1.0, -1.0);
+
+ glTexCoord2f(ImgWidth, ImgHeight);
+ glVertex2f(1.0, 1.0);
+
+ glTexCoord2f(0, ImgHeight);
+ glVertex2f(-1.0, 1.0);
+
+ glEnd();
+}
+
+
+static void scr_Display( void )
+{
+ glClear( GL_COLOR_BUFFER_BIT );
+
+ glPushMatrix();
+ glRotatef(Xrot, 1.0, 0.0, 0.0);
+ glRotatef(Yrot, 0.0, 1.0, 0.0);
+ glRotatef(Zrot, 0.0, 0.0, 1.0);
+ DrawObject();
+ glPopMatrix();
+
+}
+
+
+static void Reshape( int width, int height )
+{
+ glViewport( 0, 0, width, height );
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+ glFrustum( -1.0, 1.0, -1.0, 1.0, 10.0, 100.0 );
+ glMatrixMode( GL_MODELVIEW );
+ glLoadIdentity();
+ glTranslatef( 0.0, 0.0, -15.0 );
+}
+
+static int queryClient(Display *dpy, int screen)
+{
+#ifdef GLX_MESA_allocate_memory
+ char *extensions;
+
+ extensions = (char *)glXQueryExtensionsString(dpy, screen);
+ if (!extensions || !strstr(extensions,"GLX_MESA_allocate_memory")) {
+ return 0;
+ }
+
+ return 1;
+#else
+ return 0;
+#endif
+}
+
+static int
+query_extension(char* extName) {
+ char *p = (char *) glGetString(GL_EXTENSIONS);
+ char *end = p + strlen(p);
+ while (p < end) {
+ int n = strcspn(p, " ");
+ if ((strlen(extName) == n) && (strncmp(extName, p, n) == 0))
+ return GL_TRUE;
+ p += (n + 1);
+ }
+ return GL_FALSE;
+}
+
+static void Init( int argc, char *argv[] , Display *dpy, int screen, Window win)
+{
+ GLuint texObj = 100;
+ const char *file;
+ void *glx_memory;
+
+ if (!query_extension("GL_NV_texture_rectangle")) {
+ printf("Sorry, GL_NV_texture_rectangle is required\n");
+ exit(0);
+ }
+
+ if (!query_extension("GL_MESA_ycbcr_texture")) {
+ printf("Sorry, GL_MESA_ycbcr_texture is required\n");
+ exit(0);
+ }
+
+ if (!queryClient(dpy, screen)) {
+ printf("Sorry, GLX_MESA_allocate_memory is required\n");
+ exit(0);
+ }
+
+ glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, 1);
+ glBindTexture(GL_TEXTURE_RECTANGLE_NV, texObj);
+#ifdef LINEAR_FILTER
+ /* linear filtering looks much nicer but is much slower for Mesa */
+ glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+#else
+ glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+#endif
+
+ if (argc > 1)
+ file = argv[1];
+ else
+ file = TEXTURE_FILE;
+
+ ImageYUV = LoadYUVImage(file, &ImgWidth, &ImgHeight);
+ if (!ImageYUV) {
+ printf("Couldn't read %s\n", TEXTURE_FILE);
+ exit(0);
+ }
+
+ glx_memory = glXAllocateMemoryMESA(dpy, screen, ImgWidth * ImgHeight * 2, 0, 0 ,0);
+ if (!glx_memory)
+ {
+ fprintf(stderr,"Failed to allocate MESA memory\n");
+ exit(-1);
+ }
+
+ memcpy(glx_memory, ImageYUV, ImgWidth * ImgHeight * 2);
+
+ printf("Image: %dx%d\n", ImgWidth, ImgHeight);
+
+ glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0,
+ GL_YCBCR_MESA, ImgWidth, ImgHeight, 0,
+ GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_APPLE, glx_memory);
+
+ assert(glGetError() == GL_NO_ERROR);
+
+ glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+
+ glEnable(GL_TEXTURE_RECTANGLE_NV);
+
+ glShadeModel(GL_FLAT);
+ glClearColor(0.3, 0.3, 0.4, 1.0);
+
+}
+
+/*
+ * Create an RGB, double-buffered window.
+ * Return the window and context handles.
+ */
+static void
+make_window( Display *dpy, const char *name,
+ int x, int y, int width, int height,
+ Window *winRet, GLXContext *ctxRet)
+{
+ int attribs[] = { GLX_RGBA,
+ GLX_RED_SIZE, 1,
+ GLX_GREEN_SIZE, 1,
+ GLX_BLUE_SIZE, 1,
+ GLX_DOUBLEBUFFER,
+ GLX_DEPTH_SIZE, 1,
+ None };
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ GLXContext ctx;
+ XVisualInfo *visinfo;
+
+ scrnum = DefaultScreen( dpy );
+ root = RootWindow( dpy, scrnum );
+
+ visinfo = glXChooseVisual( dpy, scrnum, attribs );
+ if (!visinfo) {
+ printf("Error: couldn't get an RGB, Double-buffered visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ attr.override_redirect = 0;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect;
+
+ win = XCreateWindow( dpy, root, 0, 0, width, height,
+ 0, visinfo->depth, InputOutput,
+ visinfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(dpy, win, &sizehints);
+ XSetStandardProperties(dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ ctx = glXCreateContext( dpy, visinfo, NULL, True );
+ if (!ctx) {
+ printf("Error: glXCreateContext failed\n");
+ exit(1);
+ }
+
+ XFree(visinfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win)
+{
+ while (1) {
+ while (XPending(dpy) > 0) {
+ XEvent event;
+ XNextEvent(dpy, &event);
+ switch (event.type) {
+ case Expose:
+ /* we'll redraw below */
+ break;
+ case ConfigureNotify:
+ Reshape(event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == 27) {
+ /* escape */
+ return;
+
+ }
+ }
+ }
+ }
+
+ }
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ Display *dpy;
+ Window win;
+ GLXContext ctx;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ int i;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else
+ printf("Warrning: unknown parameter: %s\n", argv[i]);
+ }
+
+ dpy = XOpenDisplay(dpyName);
+ if (!dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ make_window(dpy, "yuvrect_client", 0, 0, 300, 300, &win, &ctx);
+ XMapWindow(dpy, win);
+ glXMakeCurrent(dpy, win, ctx);
+
+ if (printInfo) {
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+ }
+
+ Init(argc, argv, dpy, DefaultScreen(dpy), win);
+
+ scr_Display();
+ glXSwapBuffers(dpy, win);
+ event_loop(dpy, win);
+
+ glXFreeMemoryMESA(dpy, DefaultScreen(dpy), glx_memory);
+ glXDestroyContext(dpy, ctx);
+ XDestroyWindow(dpy, win);
+ XCloseDisplay(dpy);
+
+ return 0;
+}