diff options
Diffstat (limited to 'src/gallium/state_trackers/egl/x11/native_ximage.c')
| -rw-r--r-- | src/gallium/state_trackers/egl/x11/native_ximage.c | 694 |
1 files changed, 694 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/egl/x11/native_ximage.c b/src/gallium/state_trackers/egl/x11/native_ximage.c new file mode 100644 index 0000000000..dfa8df2223 --- /dev/null +++ b/src/gallium/state_trackers/egl/x11/native_ximage.c @@ -0,0 +1,694 @@ +/* + * Mesa 3-D graphics library + * Version: 7.8 + * + * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <assert.h> +#include <sys/ipc.h> +#include <sys/types.h> +#include <sys/shm.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/extensions/XShm.h> +#include "util/u_memory.h" +#include "util/u_math.h" +#include "util/u_format.h" +#include "pipe/p_compiler.h" +#include "pipe/internal/p_winsys_screen.h" +#include "softpipe/sp_winsys.h" +#include "egllog.h" + +#include "sw_winsys.h" +#include "native_x11.h" +#include "x11_screen.h" + +enum ximage_surface_type { + XIMAGE_SURFACE_TYPE_WINDOW, + XIMAGE_SURFACE_TYPE_PIXMAP, + XIMAGE_SURFACE_TYPE_PBUFFER +}; + +struct ximage_display { + struct native_display base; + Display *dpy; + boolean own_dpy; + + struct x11_screen *xscr; + int xscr_number; + + boolean use_xshm; + + struct pipe_winsys *winsys; + struct ximage_config *configs; + int num_configs; +}; + +struct ximage_buffer { + XImage *ximage; + + struct pipe_texture *texture; + XShmSegmentInfo *shm_info; + boolean xshm_attached; +}; + +struct ximage_surface { + struct native_surface base; + Drawable drawable; + enum ximage_surface_type type; + enum pipe_format color_format; + XVisualInfo visual; + struct ximage_display *xdpy; + + int width, height; + GC gc; + + struct ximage_buffer buffers[NUM_NATIVE_ATTACHMENTS]; + unsigned int sequence_number; +}; + +struct ximage_config { + struct native_config base; + const XVisualInfo *visual; +}; + +static INLINE struct ximage_display * +ximage_display(const struct native_display *ndpy) +{ + return (struct ximage_display *) ndpy; +} + +static INLINE struct ximage_surface * +ximage_surface(const struct native_surface *nsurf) +{ + return (struct ximage_surface *) nsurf; +} + +static INLINE struct ximage_config * +ximage_config(const struct native_config *nconf) +{ + return (struct ximage_config *) nconf; +} + +static void +ximage_surface_free_buffer(struct native_surface *nsurf, + enum native_attachment which) +{ + struct ximage_surface *xsurf = ximage_surface(nsurf); + struct ximage_buffer *xbuf = &xsurf->buffers[which]; + + pipe_texture_reference(&xbuf->texture, NULL); + + if (xbuf->shm_info) { + if (xbuf->xshm_attached) + XShmDetach(xsurf->xdpy->dpy, xbuf->shm_info); + if (xbuf->shm_info->shmaddr != (void *) -1) + shmdt(xbuf->shm_info->shmaddr); + if (xbuf->shm_info->shmid != -1) + shmctl(xbuf->shm_info->shmid, IPC_RMID, 0); + + xbuf->shm_info->shmaddr = (void *) -1; + xbuf->shm_info->shmid = -1; + } +} + +static boolean +ximage_surface_alloc_buffer(struct native_surface *nsurf, + enum native_attachment which) +{ + struct ximage_surface *xsurf = ximage_surface(nsurf); + struct ximage_buffer *xbuf = &xsurf->buffers[which]; + struct pipe_screen *screen = xsurf->xdpy->base.screen; + struct pipe_texture templ; + + /* free old data */ + if (xbuf->texture) + ximage_surface_free_buffer(&xsurf->base, which); + + memset(&templ, 0, sizeof(templ)); + templ.target = PIPE_TEXTURE_2D; + templ.format = xsurf->color_format; + templ.width0 = xsurf->width; + templ.height0 = xsurf->height; + templ.depth0 = 1; + templ.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET; + + if (xbuf->shm_info) { + struct pipe_buffer *pbuf; + unsigned stride, size; + void *addr = NULL; + + stride = util_format_get_stride(xsurf->color_format, xsurf->width); + /* alignment should depend on visual? */ + stride = align(stride, 4); + size = stride * xsurf->height; + + /* create and attach shm object */ + xbuf->shm_info->shmid = shmget(IPC_PRIVATE, size, 0755); + if (xbuf->shm_info->shmid != -1) { + xbuf->shm_info->shmaddr = + shmat(xbuf->shm_info->shmid, NULL, 0); + if (xbuf->shm_info->shmaddr != (void *) -1) { + if (XShmAttach(xsurf->xdpy->dpy, xbuf->shm_info)) { + addr = xbuf->shm_info->shmaddr; + xbuf->xshm_attached = TRUE; + } + } + } + + if (addr) { + pbuf = screen->user_buffer_create(screen, addr, size); + if (pbuf) { + xbuf->texture = + screen->texture_blanket(screen, &templ, &stride, pbuf); + pipe_buffer_reference(&pbuf, NULL); + } + } + } + else { + xbuf->texture = screen->texture_create(screen, &templ); + } + + /* clean up the buffer if allocation failed */ + if (!xbuf->texture) + ximage_surface_free_buffer(&xsurf->base, which); + + return (xbuf->texture != NULL); +} + +static boolean +ximage_surface_draw_buffer(struct native_surface *nsurf, + enum native_attachment which) +{ + struct ximage_surface *xsurf = ximage_surface(nsurf); + struct ximage_buffer *xbuf = &xsurf->buffers[which]; + struct pipe_screen *screen = xsurf->xdpy->base.screen; + struct pipe_transfer *transfer; + + if (xsurf->type == XIMAGE_SURFACE_TYPE_PBUFFER) + return TRUE; + + assert(xsurf->drawable && xbuf->ximage && xbuf->texture); + + transfer = screen->get_tex_transfer(screen, xbuf->texture, + 0, 0, 0, PIPE_TRANSFER_READ, 0, 0, xsurf->width, xsurf->height); + if (!transfer) + return FALSE; + + xbuf->ximage->bytes_per_line = transfer->stride; + xbuf->ximage->data = screen->transfer_map(screen, transfer); + if (!xbuf->ximage->data) { + screen->tex_transfer_destroy(transfer); + return FALSE; + } + + + if (xbuf->shm_info) + XShmPutImage(xsurf->xdpy->dpy, xsurf->drawable, xsurf->gc, + xbuf->ximage, 0, 0, 0, 0, xsurf->width, xsurf->height, False); + else + XPutImage(xsurf->xdpy->dpy, xsurf->drawable, xsurf->gc, + xbuf->ximage, 0, 0, 0, 0, xsurf->width, xsurf->height); + + xbuf->ximage->data = NULL; + screen->transfer_unmap(screen, transfer); + + /* + * softpipe allows the pipe transfer to be re-used, but we don't want to + * rely on that behavior. + */ + screen->tex_transfer_destroy(transfer); + + XSync(xsurf->xdpy->dpy, FALSE); + + return TRUE; +} + +static boolean +ximage_surface_flush_frontbuffer(struct native_surface *nsurf) +{ + return ximage_surface_draw_buffer(nsurf, NATIVE_ATTACHMENT_FRONT_LEFT); +} + +static boolean +ximage_surface_swap_buffers(struct native_surface *nsurf) +{ + struct ximage_surface *xsurf = ximage_surface(nsurf); + struct ximage_buffer *xfront, *xback, xtmp; + + xfront = &xsurf->buffers[NATIVE_ATTACHMENT_FRONT_LEFT]; + xback = &xsurf->buffers[NATIVE_ATTACHMENT_BACK_LEFT]; + + /* draw the back buffer directly if there is no front buffer */ + if (!xfront->texture) + return ximage_surface_draw_buffer(nsurf, NATIVE_ATTACHMENT_BACK_LEFT); + + /* swap the buffers */ + xtmp = *xfront; + *xfront = *xback; + *xback = xtmp; + + /* the front/back textures are swapped */ + xsurf->sequence_number++; + + return ximage_surface_draw_buffer(nsurf, NATIVE_ATTACHMENT_FRONT_LEFT); +} + +static void +ximage_surface_update_geometry(struct native_surface *nsurf) +{ + struct ximage_surface *xsurf = ximage_surface(nsurf); + Status ok; + Window root; + int x, y; + unsigned int w, h, border, depth; + + /* pbuffer has fixed geometry */ + if (xsurf->type == XIMAGE_SURFACE_TYPE_PBUFFER) + return; + + ok = XGetGeometry(xsurf->xdpy->dpy, xsurf->drawable, + &root, &x, &y, &w, &h, &border, &depth); + if (ok) { + xsurf->width = w; + xsurf->height = h; + } +} + +static boolean +ximage_surface_validate(struct native_surface *nsurf, uint attachment_mask, + unsigned int *seq_num, struct pipe_texture **textures, + int *width, int *height) +{ + struct ximage_surface *xsurf = ximage_surface(nsurf); + boolean new_buffers = FALSE; + int att; + + ximage_surface_update_geometry(&xsurf->base); + + for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) { + struct ximage_buffer *xbuf = &xsurf->buffers[att]; + + /* delay the allocation */ + if (!native_attachment_mask_test(attachment_mask, att)) + continue; + + /* reallocate the texture */ + if (!xbuf->texture || + xsurf->width != xbuf->texture->width0 || + xsurf->height != xbuf->texture->height0) { + new_buffers = TRUE; + if (ximage_surface_alloc_buffer(&xsurf->base, att)) { + /* update ximage */ + if (xbuf->ximage) { + xbuf->ximage->width = xsurf->width; + xbuf->ximage->height = xsurf->height; + } + } + } + + if (textures) { + textures[att] = NULL; + pipe_texture_reference(&textures[att], xbuf->texture); + } + } + + /* increase the sequence number so that caller knows */ + if (new_buffers) + xsurf->sequence_number++; + + if (seq_num) + *seq_num = xsurf->sequence_number; + if (width) + *width = xsurf->width; + if (height) + *height = xsurf->height; + + return TRUE; +} + +static void +ximage_surface_wait(struct native_surface *nsurf) +{ + struct ximage_surface *xsurf = ximage_surface(nsurf); + XSync(xsurf->xdpy->dpy, FALSE); + /* TODO XGetImage and update the front texture */ +} + +static void +ximage_surface_destroy(struct native_surface *nsurf) +{ + struct ximage_surface *xsurf = ximage_surface(nsurf); + int i; + + for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) { + struct ximage_buffer *xbuf = &xsurf->buffers[i]; + ximage_surface_free_buffer(&xsurf->base, i); + /* xbuf->shm_info is owned by xbuf->ximage? */ + if (xbuf->ximage) { + XDestroyImage(xbuf->ximage); + xbuf->ximage = NULL; + } + } + + if (xsurf->type != XIMAGE_SURFACE_TYPE_PBUFFER) + XFreeGC(xsurf->xdpy->dpy, xsurf->gc); + free(xsurf); +} + +static struct ximage_surface * +ximage_display_create_surface(struct native_display *ndpy, + enum ximage_surface_type type, + Drawable drawable, + const struct native_config *nconf) +{ + struct ximage_display *xdpy = ximage_display(ndpy); + struct ximage_config *xconf = ximage_config(nconf); + struct ximage_surface *xsurf; + int i; + + xsurf = CALLOC_STRUCT(ximage_surface); + if (!xsurf) + return NULL; + + xsurf->xdpy = xdpy; + xsurf->type = type; + xsurf->color_format = xconf->base.color_format; + xsurf->drawable = drawable; + + if (xsurf->type != XIMAGE_SURFACE_TYPE_PBUFFER) { + xsurf->drawable = drawable; + xsurf->visual = *xconf->visual; + + xsurf->gc = XCreateGC(xdpy->dpy, xsurf->drawable, 0, NULL); + if (!xsurf->gc) { + free(xsurf); + return NULL; + } + + for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) { + struct ximage_buffer *xbuf = &xsurf->buffers[i]; + + if (xdpy->use_xshm) { + xbuf->shm_info = calloc(1, sizeof(*xbuf->shm_info)); + if (xbuf->shm_info) { + /* initialize shm info */ + xbuf->shm_info->shmid = -1; + xbuf->shm_info->shmaddr = (void *) -1; + xbuf->shm_info->readOnly = TRUE; + + xbuf->ximage = XShmCreateImage(xsurf->xdpy->dpy, + xsurf->visual.visual, + xsurf->visual.depth, + ZPixmap, NULL, + xbuf->shm_info, + 0, 0); + } + } + else { + xbuf->ximage = XCreateImage(xsurf->xdpy->dpy, + xsurf->visual.visual, + xsurf->visual.depth, + ZPixmap, 0, /* format, offset */ + NULL, /* data */ + 0, 0, /* size */ + 8, /* bitmap_pad */ + 0); /* bytes_per_line */ + } + + if (!xbuf->ximage) { + XFreeGC(xdpy->dpy, xsurf->gc); + free(xsurf); + return NULL; + } + } + } + + xsurf->base.destroy = ximage_surface_destroy; + xsurf->base.swap_buffers = ximage_surface_swap_buffers; + xsurf->base.flush_frontbuffer = ximage_surface_flush_frontbuffer; + xsurf->base.validate = ximage_surface_validate; + xsurf->base.wait = ximage_surface_wait; + + return xsurf; +} + +static struct native_surface * +ximage_display_create_window_surface(struct native_display *ndpy, + EGLNativeWindowType win, + const struct native_config *nconf) +{ + struct ximage_surface *xsurf; + + xsurf = ximage_display_create_surface(ndpy, XIMAGE_SURFACE_TYPE_WINDOW, + (Drawable) win, nconf); + return (xsurf) ? &xsurf->base : NULL; +} + +static struct native_surface * +ximage_display_create_pixmap_surface(struct native_display *ndpy, + EGLNativePixmapType pix, + const struct native_config *nconf) +{ + struct ximage_surface *xsurf; + + xsurf = ximage_display_create_surface(ndpy, XIMAGE_SURFACE_TYPE_PIXMAP, + (Drawable) pix, nconf); + return (xsurf) ? &xsurf->base : NULL; +} + +static struct native_surface * +ximage_display_create_pbuffer_surface(struct native_display *ndpy, + const struct native_config *nconf, + uint width, uint height) +{ + struct ximage_surface *xsurf; + + xsurf = ximage_display_create_surface(ndpy, XIMAGE_SURFACE_TYPE_PBUFFER, + (Drawable) None, nconf); + if (xsurf) { + xsurf->width = width; + xsurf->height = height; + } + return (xsurf) ? &xsurf->base : NULL; +} + +static struct pipe_context * +ximage_display_create_context(struct native_display *ndpy, + void *context_private) +{ + struct pipe_context *pctx = softpipe_create(ndpy->screen); + if (pctx) + pctx->priv = context_private; + return pctx; +} + +static enum pipe_format +choose_format(const XVisualInfo *vinfo) +{ + enum pipe_format fmt; + /* TODO elaborate the formats */ + switch (vinfo->depth) { + case 32: + fmt = PIPE_FORMAT_A8R8G8B8_UNORM; + break; + case 24: + fmt = PIPE_FORMAT_X8R8G8B8_UNORM; + break; + case 16: + fmt = PIPE_FORMAT_R5G6B5_UNORM; + break; + default: + fmt = PIPE_FORMAT_NONE; + break; + } + + return fmt; +} + +static const struct native_config ** +ximage_display_get_configs(struct native_display *ndpy, int *num_configs) +{ + struct ximage_display *xdpy = ximage_display(ndpy); + const struct native_config **configs; + int i; + + /* first time */ + if (!xdpy->configs) { + const XVisualInfo *visuals; + int num_visuals, count, j; + + visuals = x11_screen_get_visuals(xdpy->xscr, &num_visuals); + if (!visuals) + return NULL; + + /* + * Create two configs for each visual. + * One with depth/stencil buffer; one without + */ + xdpy->configs = calloc(num_visuals * 2, sizeof(*xdpy->configs)); + if (!xdpy->configs) + return NULL; + + count = 0; + for (i = 0; i < num_visuals; i++) { + for (j = 0; j < 2; j++) { + struct ximage_config *xconf = &xdpy->configs[count]; + __GLcontextModes *mode = &xconf->base.mode; + + xconf->visual = &visuals[i]; + xconf->base.color_format = choose_format(xconf->visual); + if (xconf->base.color_format == PIPE_FORMAT_NONE) + continue; + + x11_screen_convert_visual(xdpy->xscr, xconf->visual, mode); + /* support double buffer mode */ + mode->doubleBufferMode = TRUE; + + xconf->base.depth_format = PIPE_FORMAT_NONE; + xconf->base.stencil_format = PIPE_FORMAT_NONE; + /* create the second config with depth/stencil buffer */ + if (j == 1) { + xconf->base.depth_format = PIPE_FORMAT_S8Z24_UNORM; + xconf->base.stencil_format = PIPE_FORMAT_S8Z24_UNORM; + mode->depthBits = 24; + mode->stencilBits = 8; + mode->haveDepthBuffer = TRUE; + mode->haveStencilBuffer = TRUE; + } + + mode->maxPbufferWidth = 4096; + mode->maxPbufferHeight = 4096; + mode->maxPbufferPixels = 4096 * 4096; + mode->drawableType = + GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT; + mode->swapMethod = GLX_SWAP_EXCHANGE_OML; + + if (mode->alphaBits) + mode->bindToTextureRgba = TRUE; + else + mode->bindToTextureRgb = TRUE; + + count++; + } + } + + xdpy->num_configs = count; + } + + configs = malloc(xdpy->num_configs * sizeof(*configs)); + if (configs) { + for (i = 0; i < xdpy->num_configs; i++) + configs[i] = (const struct native_config *) &xdpy->configs[i]; + if (num_configs) + *num_configs = xdpy->num_configs; + } + return configs; +} + +static boolean +ximage_display_is_pixmap_supported(struct native_display *ndpy, + EGLNativePixmapType pix, + const struct native_config *nconf) +{ + struct ximage_display *xdpy = ximage_display(ndpy); + enum pipe_format fmt; + uint depth; + + depth = x11_drawable_get_depth(xdpy->xscr, (Drawable) pix); + switch (depth) { + case 32: + fmt = PIPE_FORMAT_A8R8G8B8_UNORM; + break; + case 24: + fmt = PIPE_FORMAT_X8R8G8B8_UNORM; + break; + case 16: + fmt = PIPE_FORMAT_R5G6B5_UNORM; + break; + default: + fmt = PIPE_FORMAT_NONE; + break; + } + + return (fmt == nconf->color_format); +} + +static void +ximage_display_destroy(struct native_display *ndpy) +{ + struct ximage_display *xdpy = ximage_display(ndpy); + + if (xdpy->configs) + free(xdpy->configs); + + xdpy->base.screen->destroy(xdpy->base.screen); + free(xdpy->winsys); + + x11_screen_destroy(xdpy->xscr); + if (xdpy->own_dpy) + XCloseDisplay(xdpy->dpy); + free(xdpy); +} + +struct native_display * +x11_create_ximage_display(EGLNativeDisplayType dpy, boolean use_xshm) +{ + struct ximage_display *xdpy; + + xdpy = CALLOC_STRUCT(ximage_display); + if (!xdpy) + return NULL; + + xdpy->dpy = dpy; + if (!xdpy->dpy) { + xdpy->dpy = XOpenDisplay(NULL); + if (!xdpy->dpy) { + free(xdpy); + return NULL; + } + xdpy->own_dpy = TRUE; + } + + xdpy->xscr_number = DefaultScreen(xdpy->dpy); + xdpy->xscr = x11_screen_create(xdpy->dpy, xdpy->xscr_number); + if (!xdpy->xscr) { + free(xdpy); + return NULL; + } + + xdpy->use_xshm = + (use_xshm && x11_screen_support(xdpy->xscr, X11_SCREEN_EXTENSION_XSHM)); + + xdpy->winsys = create_sw_winsys(); + xdpy->base.screen = softpipe_create_screen(xdpy->winsys); + + xdpy->base.destroy = ximage_display_destroy; + + xdpy->base.get_configs = ximage_display_get_configs; + xdpy->base.is_pixmap_supported = ximage_display_is_pixmap_supported; + xdpy->base.create_context = ximage_display_create_context; + xdpy->base.create_window_surface = ximage_display_create_window_surface; + xdpy->base.create_pixmap_surface = ximage_display_create_pixmap_surface; + xdpy->base.create_pbuffer_surface = ximage_display_create_pbuffer_surface; + + return &xdpy->base; +} |