diff options
Diffstat (limited to 'common/ogl_ctx.c')
| -rw-r--r-- | common/ogl_ctx.c | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/common/ogl_ctx.c b/common/ogl_ctx.c deleted file mode 100644 index 41c05915..00000000 --- a/common/ogl_ctx.c +++ /dev/null @@ -1,251 +0,0 @@ -/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */ -/* - Copyright (C) 2009 Red Hat, Inc. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, see <http://www.gnu.org/licenses/>. -*/ -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdlib.h> -#include <stdio.h> -#include <X11/Xlib.h> -#include <GL/glx.h> - -#include "ogl_ctx.h" -#include "spice_common.h" - -enum { - OGLCTX_TYPE_PBUF, - OGLCTX_TYPE_PIXMAP, -}; - -struct OGLCtx { - int type; - Display *x_display; - GLXContext glx_context; - GLXDrawable drawable; -}; - -typedef struct OGLPixmapCtx { - OGLCtx base; - Pixmap pixmap; -} OGLPixmapCtx; - - - -const char *oglctx_type_str(OGLCtx *ctx) -{ - static const char *pbuf_str = "pbuf"; - static const char *pixmap_str = "pixmap"; - static const char *invalid_str = "invalid"; - - switch (ctx->type) { - case OGLCTX_TYPE_PBUF: - return pbuf_str; - case OGLCTX_TYPE_PIXMAP: - return pixmap_str; - default: - return invalid_str; - } -} - -void oglctx_make_current(OGLCtx *ctx) -{ - if (!glXMakeCurrent(ctx->x_display, ctx->drawable, ctx->glx_context)) { - printf("%s: failed\n", __FUNCTION__); - } -} - -OGLCtx *pbuf_create(int width, int heigth) -{ - OGLCtx *ctx; - Display *x_display; - int num_configs; - GLXFBConfig *fb_config; - GLXPbuffer glx_pbuf; - GLXContext glx_context; - - const int glx_attributes[] = { GLX_RENDER_TYPE, GLX_RGBA_BIT, - GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT, - GLX_RED_SIZE, 8, - GLX_GREEN_SIZE, 8, - GLX_BLUE_SIZE, 8, - GLX_ALPHA_SIZE, 8, - GLX_STENCIL_SIZE, 4, - 0 }; - - int pbuf_attrib[] = { GLX_PRESERVED_CONTENTS, True, - GLX_PBUFFER_WIDTH, width, - GLX_PBUFFER_HEIGHT, heigth, - GLX_LARGEST_PBUFFER, False, - 0, 0 }; - - if (!(ctx = calloc(1, sizeof(*ctx)))) { - printf("%s: alloc pbuf failed\n", __FUNCTION__); - return NULL; - } - - if (!(x_display = XOpenDisplay(NULL))) { - printf("%s: open display failed\n", __FUNCTION__); - goto error_1; - } - - if (!(fb_config = glXChooseFBConfig(x_display, 0, glx_attributes, &num_configs)) || - !num_configs) { - printf("%s: choose fb config failed\n", __FUNCTION__); - goto error_2; - } - - if (!(glx_pbuf = glXCreatePbuffer(x_display, fb_config[0], pbuf_attrib))) { - goto error_3; - } - - if (!(glx_context = glXCreateNewContext(x_display, fb_config[0], GLX_RGBA_TYPE, NULL, True))) { - printf("%s: create context failed\n", __FUNCTION__); - goto error_4; - } - - XFree(fb_config); - - ctx->type = OGLCTX_TYPE_PBUF; - ctx->drawable = glx_pbuf; - ctx->glx_context = glx_context; - ctx->x_display = x_display; - - return ctx; - -error_4: - glXDestroyPbuffer(x_display, glx_pbuf); - -error_3: - XFree(fb_config); - -error_2: - XCloseDisplay(x_display); - -error_1: - free(ctx); - - return NULL; -} - -OGLCtx *pixmap_create(int width, int heigth) -{ - Display *x_display; - int num_configs; - GLXFBConfig *fb_config; - GLXPixmap glx_pixmap; - GLXContext glx_context; - Pixmap pixmap; - int screen; - Window root_window; - OGLPixmapCtx *pix; - - const int glx_attributes[] = { GLX_RENDER_TYPE, GLX_RGBA_BIT, - GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT, - GLX_RED_SIZE, 8, - GLX_GREEN_SIZE, 8, - GLX_BLUE_SIZE, 8, - GLX_ALPHA_SIZE, 8, - GLX_STENCIL_SIZE, 4, - 0 }; - - if (!(pix = calloc(1, sizeof(*pix)))) { - printf("%s: alloc pix failed\n", __FUNCTION__); - return NULL; - } - - if (!(x_display = XOpenDisplay(NULL))) { - printf("%s: open display failed\n", __FUNCTION__); - goto error_1; - } - - screen = DefaultScreen(x_display); - root_window = RootWindow(x_display, screen); - - if (!(fb_config = glXChooseFBConfig(x_display, 0, glx_attributes, &num_configs)) || - !num_configs) { - printf("%s: choose fb config failed\n", __FUNCTION__); - goto error_2; - } - - if (!(pixmap = XCreatePixmap(x_display, root_window, width, heigth, 32 /*use fb config*/))) { - printf("%s: create x pixmap failed\n", __FUNCTION__); - goto error_3; - } - - if (!(glx_pixmap = glXCreatePixmap(x_display, fb_config[0], pixmap, NULL))) { - printf("%s: create glx pixmap failed\n", __FUNCTION__); - goto error_4; - } - - - if (!(glx_context = glXCreateNewContext(x_display, fb_config[0], GLX_RGBA_TYPE, NULL, True))) { - printf("%s: create context failed\n", __FUNCTION__); - goto error_5; - } - - XFree(fb_config); - - pix->base.type = OGLCTX_TYPE_PIXMAP; - pix->base.x_display = x_display; - pix->base.drawable = glx_pixmap; - pix->base.glx_context = glx_context; - pix->pixmap = pixmap; - - return &pix->base; - -error_5: - glXDestroyPixmap(x_display, glx_pixmap); - -error_4: - XFreePixmap(x_display, pixmap); - -error_3: - XFree(fb_config); - -error_2: - XCloseDisplay(x_display); - -error_1: - free(pix); - - return NULL; -} - -void oglctx_destroy(OGLCtx *ctx) -{ - if (!ctx) { - return; - } - // test is current ? - - glXDestroyContext(ctx->x_display, ctx->glx_context); - switch (ctx->type) { - case OGLCTX_TYPE_PBUF: - glXDestroyPbuffer(ctx->x_display, ctx->drawable); - break; - case OGLCTX_TYPE_PIXMAP: - glXDestroyPixmap(ctx->x_display, ctx->drawable); - XFreePixmap(ctx->x_display, ((OGLPixmapCtx *)ctx)->pixmap); - break; - default: - PANIC("invalid ogl ctx type"); - } - - XCloseDisplay(ctx->x_display); - free(ctx); -} |