From 213978fa8a868661dda88e6b4e7cacec1c90677a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pablo=20Mart=C3=ADn?= Date: Sun, 7 Sep 2003 21:45:05 +0000 Subject: Updating pdp to current version 0.12.2 svn path=/trunk/externals/pdp/; revision=941 --- modules/image_io/pdp_glx.c | 558 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 558 insertions(+) create mode 100644 modules/image_io/pdp_glx.c (limited to 'modules/image_io/pdp_glx.c') diff --git a/modules/image_io/pdp_glx.c b/modules/image_io/pdp_glx.c new file mode 100644 index 0000000..810912e --- /dev/null +++ b/modules/image_io/pdp_glx.c @@ -0,0 +1,558 @@ +/* + * Pure Data Packet module. + * Copyright (c) by Tom Schouten + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +// gl stuff +#include +#include +#include +//#include + +// pdp stuff +#include "pdp.h" +#include "pdp_base.h" + +// some x window glue code +#include "pdp_xwindow.h" + +// pdp stuff +#include "pdp.h" +#include "pdp_llconv.h" +//#include "pdp_opengl.h" + + +/* initial image dimensions */ +#define PDP_OGL_W 320 +#define PDP_OGL_H 240 + +#define PDP_OGL_AUTOCREATE_RETRY 10 + + +typedef struct pdp_glx_struct +{ + t_object x_obj; + + t_pdp_xwindow x_xwin; + + t_outlet *x_outlet; + + int x_packet0; + int x_queue_id; + t_symbol *x_display; + + Display *x_dpy; + + XVisualInfo *x_vis_info; + GLXContext x_glx_context; + + GLuint x_texture; + u32 x_tex_width; + u32 x_tex_height; + + unsigned char *x_data; + unsigned int x_width; + unsigned int x_height; + int x_last_encoding; + + int x_initialized; + int x_autocreate; + +} t_pdp_glx; + + + +static void pdp_glx_cursor(t_pdp_glx *x, t_floatarg f) +{ + pdp_xwindow_cursor(&x->x_xwin, f); +} + +static void pdp_glx_destroy(t_pdp_glx* x) +{ + t_pdp_procqueue *q = pdp_queue_get_queue(); + XEvent e; + + if (x->x_initialized){ + pdp_procqueue_finish(q, x->x_queue_id); + x->x_queue_id = -1; + glXDestroyContext(x->x_dpy, x->x_glx_context); + pdp_xwindow_close(&x->x_xwin); + XCloseDisplay(x->x_dpy); + x->x_initialized = false; + } + +} + + +static void pdp_glx_fullscreen(t_pdp_glx *x) +{ + pdp_xwindow_fullscreen(&x->x_xwin); +} + +static void pdp_glx_resize(t_pdp_glx* x, t_floatarg width, t_floatarg height) +{ + pdp_xwindow_resize(&x->x_xwin, width, height); +} + +static void pdp_glx_move(t_pdp_glx* x, t_floatarg width, t_floatarg height) +{ + pdp_xwindow_move(&x->x_xwin, width, height); +} + +static void pdp_glx_moveresize(t_pdp_glx* x, t_floatarg xoff, t_floatarg yoff, t_floatarg width, t_floatarg height) +{ + pdp_xwindow_moveresize(&x->x_xwin, xoff, yoff, width, height); +} + +static void pdp_glx_tile(t_pdp_glx* x, t_floatarg xtiles, t_floatarg ytiles, t_floatarg i, t_floatarg j) +{ + pdp_xwindow_tile(&x->x_xwin, xtiles, ytiles, i, j); +} + + + + +void pdp_glx_generate_texture(t_pdp_glx *x) +{ + u32 width = x->x_tex_width; + u32 height = x->x_tex_height; + u32 depth = 4; + u32 i; + + u8 *dummydata = 0; + + while (x->x_width > width) width <<= 1; + while (x->x_height > height) height <<= 1; + + dummydata = (u8 *)pdp_alloc(width*height*depth); + + for (i=0; ix_dpy, x->x_xwin.win, x->x_glx_context); + + /* generate texture if necessary */ + if (!glIsTexture(x->x_texture)) glGenTextures(1, &(x->x_texture)); + + glBindTexture(GL_TEXTURE_2D, x->x_texture); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, dummydata); + + pdp_dealloc(dummydata); + + x->x_tex_width = width; + x->x_tex_height = height; +} + +void pdp_glx_regenerate_texture(t_pdp_glx *x) +{ + if ((x->x_width > x->x_tex_width) || (x->x_height > x->x_tex_height)) pdp_glx_generate_texture(x); + +} + + +static void pdp_glx_create(t_pdp_glx* x) +{ + unsigned int *uintdata = (unsigned int *)(x->x_data); + XEvent e; + unsigned int i; + static int vis_attr[] = {GLX_RGBA, GLX_RED_SIZE, 4, GLX_GREEN_SIZE, 4, GLX_BLUE_SIZE, 4, + GLX_DEPTH_SIZE, 16, GLX_DOUBLEBUFFER, None}; + + + if (x->x_initialized) return; + + /* manually open a display */ + if (NULL == (x->x_dpy = XOpenDisplay(x->x_display->s_name))){ + post("pdp_glx: cant open display %s\n",x->x_display->s_name); + x->x_initialized = false; + return; + } + + /* create a window on the display */ + if (!(x->x_initialized = pdp_xwindow_create_on_display(&x->x_xwin, x->x_dpy))) + goto exit_close_dpy; + + + /* create a glx visual */ + if (!(x->x_vis_info = glXChooseVisual(x->x_dpy, x->x_xwin.screen, vis_attr))){ + post("pdp_glx: can't create visual"); + goto exit_close_win; + } + //post("visual: %x", x->x_vis_info); + + /* create the rendering context */ + if (!(x->x_glx_context = glXCreateContext(x->x_dpy, x->x_vis_info, 0 /*share list*/, GL_TRUE))){ + post("pdp_glx: can't create render context"); + goto exit_close_win; + } + //post("context: %x", x->x_glx_context); + + + /* create texture */ + pdp_glx_generate_texture(x); + + + /* we're done initializing */ + x->x_initialized = true; + + /* disable/enable cursor */ + //pdp_glx_cursor(x, x->x_cursor); + return; + + + exit_close_win: + pdp_xwindow_close(&x->x_xwin); + exit_close_dpy: + XCloseDisplay(x->x_dpy); + x->x_initialized = false; + return; +} + +static int pdp_glx_try_autocreate(t_pdp_glx *x) +{ + + if (x->x_autocreate){ + post("pdp_glx: autocreate window"); + pdp_glx_create(x); + if (!(x->x_initialized)){ + x->x_autocreate--; + if (!x->x_autocreate){ + post ("pdp_glx: autocreate failed %d times: disabled", PDP_OGL_AUTOCREATE_RETRY); + post ("pdp_glx: send [autocreate 1] message to re-enable"); + return 0; + } + } + else return 1; + + } + return 0; +} + +static void pdp_glx_bang(t_pdp_glx *x); + +static void pdp_glx_fill_texture(t_pdp_glx *x) +{ + t_pdp *header = pdp_packet_header(x->x_packet0); + void *data = pdp_packet_data (x->x_packet0); + + int i = header->info.image.width; + + + /* ensure image buffer is correct dim */ + if ((header->info.image.width != x->x_width) + || (header->info.image.height != x->x_height)) { + if (x->x_data) pdp_dealloc (x->x_data); + x->x_width = header->info.image.width; + x->x_height = header->info.image.height; + x->x_data = pdp_alloc(4*x->x_width*x->x_height); + } + + /* ensure texture is correct dim */ + pdp_glx_regenerate_texture(x); + + + /* set window context current */ + glXMakeCurrent(x->x_dpy, x->x_xwin.win, x->x_glx_context); + glBindTexture(GL_TEXTURE_2D, x->x_texture); + + switch (header->info.image.encoding){ + case PDP_IMAGE_GREY: + /* convert image to greyscale 8 bit */ + pdp_llconv(data,RIF_GREY______S16, x->x_data, RIF_GREY______U8, x->x_width, x->x_height); + + /* upload grey subtexture */ + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, x->x_width, x->x_height, GL_LUMINANCE, GL_UNSIGNED_BYTE, x->x_data); + + break; + case PDP_IMAGE_YV12: + + /* convert image to rgb 8 bit */ + pdp_llconv(data,RIF_YVU__P411_S16, x->x_data, RIF_RGB__P____U8, x->x_width, x->x_height); + + /* upload subtexture */ + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, x->x_width, x->x_height, GL_RGB, GL_UNSIGNED_BYTE, x->x_data); + + break; + default: + break; + } + + +} + +static void pdp_glx_process(t_pdp_glx *x) +{ + t_pdp *header = pdp_packet_header(x->x_packet0); + void *data = pdp_packet_data (x->x_packet0); + + + if (-1 != x->x_queue_id) return; + + /* check if window is initialized */ + if (!(x->x_initialized)){ + if (!pdp_glx_try_autocreate(x)) return; + } + + /* check data packet */ + if (!(header)) { + post("pdp_glx: invalid packet header"); + return; + } + if (PDP_IMAGE != header->type) { + post("pdp_glx: packet is not a PDP_IMAGE"); + return; + } + if ((PDP_IMAGE_YV12 != header->info.image.encoding) + && (PDP_IMAGE_GREY != header->info.image.encoding)) { + post("pdp_glx: packet is not a PDP_IMAGE_YV12/GREY"); + return; + } + + + /* fill the texture with the data in the packet */ + pdp_glx_fill_texture(x); + + /* display the new image */ + pdp_glx_bang(x); + + +} + + + +static void pdp_glx_display_texture(t_pdp_glx *x) +{ + float fx = (float)x->x_width / x->x_tex_width; + float fy = (float)x->x_height / x->x_tex_height; + + if (!x->x_initialized) return; + + /* set window context current */ + glXMakeCurrent(x->x_dpy, x->x_xwin.win, x->x_glx_context); + + /* setup viewport, projection and modelview */ + glViewport(0, 0, x->x_xwin.winwidth, x->x_xwin.winheight); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(0.0, x->x_xwin.winwidth, 0.0, x->x_xwin.winheight); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + + /* enable default texture */ + glEnable(GL_TEXTURE_2D); + glBindTexture(GL_TEXTURE_2D, x->x_texture); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + /* display texture */ + glBegin(GL_QUADS); + glTexCoord2f(fx, fy); + glVertex2i(x->x_xwin.winwidth,0); + glTexCoord2f(fx, 0); + glVertex2i(x->x_xwin.winwidth, x->x_xwin.winheight); + glTexCoord2f(0.0, 0.0); + glVertex2i(0, x->x_xwin.winheight); + glTexCoord2f(0, fy); + glVertex2i(0,0); + glEnd(); + + + glFlush(); + glXSwapBuffers(x->x_dpy,x->x_xwin.win); + +} + + + +/* redisplays image */ +static void pdp_glx_bang_thread(t_pdp_glx *x) +{ + + + pdp_glx_display_texture(x); + XFlush(x->x_dpy); + +} + +static void pdp_glx_bang_callback(t_pdp_glx *x) +{ + /* receive events & output them */ + pdp_xwindow_send_events(&x->x_xwin, x->x_outlet); + + /* release the packet if there is one */ + pdp_packet_mark_unused(x->x_packet0); + x->x_packet0 = -1;} + +static void pdp_glx_bang(t_pdp_glx *x) +{ + + /* check if window is initialized */ + if (!(x->x_initialized)){ + if (!pdp_glx_try_autocreate(x)) return; + } + + + /* if previous queued method returned + schedule a new one, else ignore */ + +/* + if (-1 == x->x_queue_id) { + pdp_queue_add(x, pdp_glx_bang_thread, pdp_glx_bang_callback, &x->x_queue_id); + } +*/ + /* don't process in thread */ + pdp_glx_bang_thread(x); + pdp_glx_bang_callback(x); + +} + + + +static void pdp_glx_input_0(t_pdp_glx *x, t_symbol *s, t_floatarg f) +{ + + if (s == gensym("register_ro")) pdp_packet_copy_ro_or_drop(&x->x_packet0, (int)f); + if (s == gensym("process")) pdp_glx_process(x); +} + + + +static void pdp_glx_vga(t_pdp_glx *x) +{ + pdp_glx_resize(x, 640, 480); +} + +static void pdp_glx_autocreate(t_pdp_glx *x, t_floatarg f) +{ + if (f != 0.0f) x->x_autocreate = PDP_OGL_AUTOCREATE_RETRY; + else x->x_autocreate = 0; +} + +static void pdp_glx_display(t_pdp_glx *x, t_symbol *s) +{ + t_pdp_procqueue *q = pdp_queue_get_queue(); + pdp_procqueue_finish(q, x->x_queue_id); + x->x_queue_id = -1; + x->x_display = s; + if (x->x_initialized){ + pdp_glx_destroy(x); + pdp_glx_create(x); + } +} + + + +static void pdp_glx_free(t_pdp_glx *x) +{ + t_pdp_procqueue *q = pdp_queue_get_queue(); + pdp_procqueue_finish(q, x->x_queue_id); + pdp_glx_destroy(x); + pdp_xwindow_free(&x->x_xwin); + if (x->x_data) pdp_dealloc (x->x_data); + pdp_packet_mark_unused(x->x_packet0); +} + +t_class *pdp_glx_class; + + + +void *pdp_glx_new(void) +{ + t_pdp_glx *x = (t_pdp_glx *)pd_new(pdp_glx_class); + + pdp_xwindow_init(&x->x_xwin); + + x->x_outlet = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + x->x_queue_id = -1; + x->x_display = gensym(":0"); + + x->x_dpy = 0; + + x->x_width = PDP_OGL_W; + x->x_height = PDP_OGL_H; + + x->x_data = pdp_alloc(4*PDP_OGL_W*PDP_OGL_H); + + x->x_initialized = 0; + pdp_glx_autocreate(x,1); + x->x_last_encoding = -1; + + x->x_tex_width = 64; + x->x_tex_height = 64; + + //pdp_glx_create(x); + + return (void *)x; +} + + + + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_glx_setup(void) +{ + + + pdp_glx_class = class_new(gensym("pdp_glx"), (t_newmethod)pdp_glx_new, + (t_method)pdp_glx_free, sizeof(t_pdp_glx), 0, A_NULL); + + /* add creator for pdp_tex_win */ + + class_addmethod(pdp_glx_class, (t_method)pdp_glx_bang, gensym("bang"), A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_create, gensym("open"), A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_create, gensym("create"), A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_autocreate, gensym("autocreate"), A_FLOAT, A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_destroy, gensym("destroy"), A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_destroy, gensym("close"), A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_move, gensym("move"), A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_move, gensym("pos"), A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_resize, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_resize, gensym("size"), A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_display, gensym("display"), A_SYMBOL, A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_cursor, gensym("cursor"), A_FLOAT, A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_fullscreen, gensym("fullscreen"), A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_moveresize, gensym("posdim"), A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_glx_class, (t_method)pdp_glx_tile, gensym("tile"), A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, A_NULL); + + + /* accept both pdp and pdp_tex packets */ + class_addmethod(pdp_glx_class, (t_method)pdp_glx_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + + + /* some shortcuts for the lazy */ + class_addmethod(pdp_glx_class, (t_method)pdp_glx_vga, gensym("vga"), A_NULL); + +} + +#ifdef __cplusplus +} +#endif + + -- cgit v1.2.1