| /* |
| * Mesa 3-D graphics library |
| * Version: 7.9 |
| * |
| * Copyright (C) 2010 LunarG Inc. |
| * |
| * 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 |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| * |
| * Authors: |
| * Chia-I Wu <olv@lunarg.com> |
| */ |
| |
| #include <sys/ioctl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <linux/fb.h> |
| |
| #include "pipe/p_screen.h" |
| #include "util/u_memory.h" |
| #include "util/u_inlines.h" |
| #include "util/u_pointer.h" |
| |
| #include "common/native.h" |
| #include "common/native_helper.h" |
| #include "fbdev/fbdev_sw_winsys.h" |
| |
| struct fbdev_display { |
| struct native_display base; |
| |
| int fd; |
| struct native_event_handler *event_handler; |
| |
| struct fb_fix_screeninfo finfo; |
| struct fb_var_screeninfo vinfo; |
| |
| struct native_config config; |
| struct native_connector connector; |
| struct native_mode mode; |
| |
| struct fbdev_surface *current_surface; |
| }; |
| |
| struct fbdev_surface { |
| struct native_surface base; |
| |
| struct fbdev_display *fbdpy; |
| struct resource_surface *rsurf; |
| int width, height; |
| |
| unsigned int sequence_number; |
| |
| boolean is_current; |
| }; |
| |
| static INLINE struct fbdev_display * |
| fbdev_display(const struct native_display *ndpy) |
| { |
| return (struct fbdev_display *) ndpy; |
| } |
| |
| static INLINE struct fbdev_surface * |
| fbdev_surface(const struct native_surface *nsurf) |
| { |
| return (struct fbdev_surface *) nsurf; |
| } |
| |
| static boolean |
| fbdev_surface_validate(struct native_surface *nsurf, uint attachment_mask, |
| unsigned int *seq_num, struct pipe_resource **textures, |
| int *width, int *height) |
| { |
| struct fbdev_surface *fbsurf = fbdev_surface(nsurf); |
| |
| if (!resource_surface_add_resources(fbsurf->rsurf, attachment_mask)) |
| return FALSE; |
| if (textures) |
| resource_surface_get_resources(fbsurf->rsurf, textures, attachment_mask); |
| |
| if (seq_num) |
| *seq_num = fbsurf->sequence_number; |
| if (width) |
| *width = fbsurf->width; |
| if (height) |
| *height = fbsurf->height; |
| |
| return TRUE; |
| } |
| |
| static boolean |
| fbdev_surface_flush_frontbuffer(struct native_surface *nsurf) |
| { |
| struct fbdev_surface *fbsurf = fbdev_surface(nsurf); |
| |
| if (!fbsurf->is_current) |
| return TRUE; |
| |
| return resource_surface_present(fbsurf->rsurf, |
| NATIVE_ATTACHMENT_FRONT_LEFT, NULL); |
| } |
| |
| static boolean |
| fbdev_surface_swap_buffers(struct native_surface *nsurf) |
| { |
| struct fbdev_surface *fbsurf = fbdev_surface(nsurf); |
| struct fbdev_display *fbdpy = fbsurf->fbdpy; |
| boolean ret = TRUE; |
| |
| if (fbsurf->is_current) { |
| ret = resource_surface_present(fbsurf->rsurf, |
| NATIVE_ATTACHMENT_BACK_LEFT, NULL); |
| } |
| |
| resource_surface_swap_buffers(fbsurf->rsurf, |
| NATIVE_ATTACHMENT_FRONT_LEFT, NATIVE_ATTACHMENT_BACK_LEFT, TRUE); |
| /* the front/back textures are swapped */ |
| fbsurf->sequence_number++; |
| fbdpy->event_handler->invalid_surface(&fbdpy->base, |
| &fbsurf->base, fbsurf->sequence_number); |
| |
| return ret; |
| } |
| |
| static void |
| fbdev_surface_wait(struct native_surface *nsurf) |
| { |
| /* no-op */ |
| } |
| |
| static void |
| fbdev_surface_destroy(struct native_surface *nsurf) |
| { |
| struct fbdev_surface *fbsurf = fbdev_surface(nsurf); |
| |
| resource_surface_destroy(fbsurf->rsurf); |
| FREE(fbsurf); |
| } |
| |
| static struct native_surface * |
| fbdev_display_create_scanout_surface(struct native_display *ndpy, |
| const struct native_config *nconf, |
| uint width, uint height) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| struct fbdev_surface *fbsurf; |
| |
| fbsurf = CALLOC_STRUCT(fbdev_surface); |
| if (!fbsurf) |
| return NULL; |
| |
| fbsurf->fbdpy = fbdpy; |
| fbsurf->width = width; |
| fbsurf->height = height; |
| |
| fbsurf->rsurf = resource_surface_create(fbdpy->base.screen, |
| nconf->color_format, |
| PIPE_BIND_RENDER_TARGET | |
| PIPE_BIND_DISPLAY_TARGET | |
| PIPE_BIND_SCANOUT); |
| if (!fbsurf->rsurf) { |
| FREE(fbsurf); |
| return NULL; |
| } |
| |
| resource_surface_set_size(fbsurf->rsurf, fbsurf->width, fbsurf->height); |
| |
| fbsurf->base.destroy = fbdev_surface_destroy; |
| fbsurf->base.swap_buffers = fbdev_surface_swap_buffers; |
| fbsurf->base.flush_frontbuffer = fbdev_surface_flush_frontbuffer; |
| fbsurf->base.validate = fbdev_surface_validate; |
| fbsurf->base.wait = fbdev_surface_wait; |
| |
| return &fbsurf->base; |
| } |
| |
| static boolean |
| fbdev_display_program(struct native_display *ndpy, int crtc_idx, |
| struct native_surface *nsurf, uint x, uint y, |
| const struct native_connector **nconns, int num_nconns, |
| const struct native_mode *nmode) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| struct fbdev_surface *fbsurf = fbdev_surface(nsurf); |
| |
| if (x || y) |
| return FALSE; |
| |
| if (fbdpy->current_surface) { |
| if (fbdpy->current_surface == fbsurf) |
| return TRUE; |
| fbdpy->current_surface->is_current = FALSE; |
| } |
| |
| if (fbsurf) |
| fbsurf->is_current = TRUE; |
| fbdpy->current_surface = fbsurf; |
| |
| return TRUE; |
| } |
| |
| static const struct native_mode ** |
| fbdev_display_get_modes(struct native_display *ndpy, |
| const struct native_connector *nconn, |
| int *num_modes) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| const struct native_mode **modes; |
| |
| modes = MALLOC(sizeof(*modes)); |
| if (modes) { |
| modes[0] = &fbdpy->mode; |
| if (num_modes) |
| *num_modes = 1; |
| } |
| |
| return modes; |
| } |
| |
| static const struct native_connector ** |
| fbdev_display_get_connectors(struct native_display *ndpy, int *num_connectors, |
| int *num_crtc) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| const struct native_connector **connectors; |
| |
| connectors = MALLOC(sizeof(*connectors)); |
| if (connectors) { |
| connectors[0] = &fbdpy->connector; |
| if (num_connectors) |
| *num_connectors = 1; |
| } |
| |
| return connectors; |
| } |
| |
| static struct native_display_modeset fbdev_display_modeset = { |
| .get_connectors = fbdev_display_get_connectors, |
| .get_modes = fbdev_display_get_modes, |
| .create_scanout_surface = fbdev_display_create_scanout_surface, |
| .program = fbdev_display_program |
| }; |
| |
| static const struct native_config ** |
| fbdev_display_get_configs(struct native_display *ndpy, int *num_configs) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| const struct native_config **configs; |
| |
| configs = MALLOC(sizeof(*configs)); |
| if (configs) { |
| configs[0] = &fbdpy->config; |
| if (num_configs) |
| *num_configs = 1; |
| } |
| |
| return configs; |
| } |
| |
| static int |
| fbdev_display_get_param(struct native_display *ndpy, |
| enum native_param_type param) |
| { |
| int val; |
| |
| switch (param) { |
| default: |
| val = 0; |
| break; |
| } |
| |
| return val; |
| } |
| |
| static void |
| fbdev_display_destroy(struct native_display *ndpy) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| |
| fbdpy->base.screen->destroy(fbdpy->base.screen); |
| close(fbdpy->fd); |
| FREE(fbdpy); |
| } |
| |
| static boolean |
| fbdev_display_init_modes(struct native_display *ndpy) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| struct native_mode *nmode = &fbdpy->mode; |
| |
| nmode->desc = "Current Mode"; |
| nmode->width = fbdpy->vinfo.xres; |
| nmode->height = fbdpy->vinfo.yres; |
| nmode->refresh_rate = 60 * 1000; /* dummy */ |
| |
| return TRUE; |
| } |
| |
| static boolean |
| fbdev_display_init_connectors(struct native_display *ndpy) |
| { |
| return TRUE; |
| } |
| |
| static enum pipe_format |
| vinfo_to_format(const struct fb_var_screeninfo *vinfo) |
| { |
| enum pipe_format format = PIPE_FORMAT_NONE; |
| |
| switch (vinfo->bits_per_pixel) { |
| case 32: |
| if (vinfo->red.length == 8 && |
| vinfo->green.length == 8 && |
| vinfo->blue.length == 8) { |
| format = (vinfo->transp.length == 8) ? |
| PIPE_FORMAT_B8G8R8A8_UNORM : PIPE_FORMAT_B8G8R8X8_UNORM; |
| } |
| break; |
| case 16: |
| if (vinfo->red.length == 5 && |
| vinfo->green.length == 6 && |
| vinfo->blue.length == 5 && |
| vinfo->transp.length == 0) |
| format = PIPE_FORMAT_B5G6R5_UNORM; |
| break; |
| default: |
| break; |
| } |
| |
| return format; |
| } |
| |
| static boolean |
| fbdev_display_init_configs(struct native_display *ndpy) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| struct native_config *nconf = &fbdpy->config; |
| |
| nconf->color_format = vinfo_to_format(&fbdpy->vinfo); |
| if (nconf->color_format == PIPE_FORMAT_NONE) |
| return FALSE; |
| |
| nconf->buffer_mask = |
| (1 << NATIVE_ATTACHMENT_FRONT_LEFT) | |
| (1 << NATIVE_ATTACHMENT_BACK_LEFT); |
| |
| nconf->scanout_bit = TRUE; |
| |
| return TRUE; |
| } |
| |
| static boolean |
| fbdev_display_init(struct native_display *ndpy) |
| { |
| struct fbdev_display *fbdpy = fbdev_display(ndpy); |
| struct sw_winsys *ws; |
| |
| if (ioctl(fbdpy->fd, FBIOGET_FSCREENINFO, &fbdpy->finfo)) |
| return FALSE; |
| |
| if (ioctl(fbdpy->fd, FBIOGET_VSCREENINFO, &fbdpy->vinfo)) |
| return FALSE; |
| |
| if (fbdpy->finfo.visual != FB_VISUAL_TRUECOLOR || |
| fbdpy->finfo.type != FB_TYPE_PACKED_PIXELS) |
| return FALSE; |
| |
| if (!fbdev_display_init_configs(&fbdpy->base) || |
| !fbdev_display_init_connectors(&fbdpy->base) || |
| !fbdev_display_init_modes(&fbdpy->base)) |
| return FALSE; |
| |
| ws = fbdev_create_sw_winsys(fbdpy->fd, fbdpy->config.color_format); |
| if (ws) |
| fbdpy->base.screen = native_create_sw_screen(ws); |
| |
| if (fbdpy->base.screen) { |
| if (!fbdpy->base.screen->is_format_supported(fbdpy->base.screen, |
| fbdpy->config.color_format, PIPE_TEXTURE_2D, 0, |
| PIPE_BIND_RENDER_TARGET, 0)) { |
| fbdpy->base.screen->destroy(fbdpy->base.screen); |
| fbdpy->base.screen = NULL; |
| } |
| } |
| |
| return (fbdpy->base.screen != NULL); |
| } |
| |
| static struct native_display * |
| fbdev_display_create(int fd, struct native_event_handler *event_handler) |
| { |
| struct fbdev_display *fbdpy; |
| |
| fbdpy = CALLOC_STRUCT(fbdev_display); |
| if (!fbdpy) |
| return NULL; |
| |
| fbdpy->fd = fd; |
| fbdpy->event_handler = event_handler; |
| |
| if (!fbdev_display_init(&fbdpy->base)) { |
| FREE(fbdpy); |
| return NULL; |
| } |
| |
| fbdpy->base.destroy = fbdev_display_destroy; |
| fbdpy->base.get_param = fbdev_display_get_param; |
| fbdpy->base.get_configs = fbdev_display_get_configs; |
| |
| fbdpy->base.modeset = &fbdev_display_modeset; |
| |
| return &fbdpy->base; |
| } |
| |
| static struct native_display * |
| native_create_display(void *dpy, struct native_event_handler *event_handler) |
| { |
| struct native_display *ndpy; |
| int fd; |
| |
| /* well, this makes fd 0 being ignored */ |
| if (!dpy) { |
| fd = open("/dev/fb0", O_RDWR); |
| } |
| else { |
| fd = dup((int) pointer_to_intptr(dpy)); |
| } |
| if (fd < 0) |
| return NULL; |
| |
| ndpy = fbdev_display_create(fd, event_handler); |
| if (!ndpy) |
| close(fd); |
| |
| return ndpy; |
| } |
| |
| static const struct native_platform fbdev_platform = { |
| "FBDEV", /* name */ |
| NULL, /* create_probe */ |
| NULL, /* get_probe_result */ |
| native_create_display |
| }; |
| |
| const struct native_platform * |
| native_get_fbdev_platform(void) |
| { |
| return &fbdev_platform; |
| } |