+++ /dev/null
-/*
- * 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",
- XDisplayName(dpyName));
- 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;
-}
projects / mesa.git / blobdiff