diff options
Diffstat (limited to 'src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c')
-rw-r--r-- | src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c b/src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c new file mode 100644 index 0000000000..5995eee34b --- /dev/null +++ b/src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c @@ -0,0 +1,371 @@ +/********************************************************** + * Copyright 2009 VMware, Inc. All rights reserved. + * + * 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. + * + **********************************************************/ + + +#include "pipe/p_compiler.h" +#include "pipe/p_inlines.h" +#include "util/u_memory.h" +#include "vmw_screen.h" + +#include "trace/tr_drm.h" + +#include "vmw_screen.h" +#include "vmw_surface.h" +#include "vmw_fence.h" +#include "vmw_context.h" + +#include <state_tracker/dri1_api.h> +#include <state_tracker/drm_api.h> +#include <vmwgfx_drm.h> +#include <xf86drm.h> + +#include <stdio.h> + +static struct dri1_api dri1_api_hooks; +static struct dri1_api_version ddx_required = { 0, 1, 0 }; +static struct dri1_api_version ddx_compat = { 0, 0, 0 }; +static struct dri1_api_version dri_required = { 4, 0, 0 }; +static struct dri1_api_version dri_compat = { 4, 0, 0 }; +static struct dri1_api_version drm_required = { 0, 1, 0 }; +static struct dri1_api_version drm_compat = { 0, 0, 0 }; + +static boolean +vmw_dri1_check_version(const struct dri1_api_version *cur, + const struct dri1_api_version *required, + const struct dri1_api_version *compat, + const char component[]) +{ + if (cur->major > required->major && cur->major <= compat->major) + return TRUE; + if (cur->major == required->major && cur->minor >= required->minor) + return TRUE; + + fprintf(stderr, "%s version failure.\n", component); + fprintf(stderr, "%s version is %d.%d.%d and this driver can only work\n" + "with versions %d.%d.x through %d.x.x.\n", + component, + cur->major, + cur->minor, + cur->patch_level, required->major, required->minor, compat->major); + return FALSE; +} + +/* This is actually the entrypoint to the entire driver, called by the + * libGL (or EGL, or ...) code via the drm_api_hooks table at the + * bottom of the file. + */ +static struct pipe_screen * +vmw_drm_create_screen(struct drm_api *drm_api, + int fd, + struct drm_create_screen_arg *arg) +{ + struct vmw_winsys_screen *vws; + struct pipe_screen *screen; + struct dri1_create_screen_arg *dri1; + + if (arg != NULL) { + switch (arg->mode) { + case DRM_CREATE_NORMAL: + break; + case DRM_CREATE_DRI1: + dri1 = (struct dri1_create_screen_arg *)arg; + if (!vmw_dri1_check_version(&dri1->ddx_version, &ddx_required, + &ddx_compat, "ddx - driver api")) + return NULL; + if (!vmw_dri1_check_version(&dri1->dri_version, &dri_required, + &dri_compat, "dri info")) + return NULL; + if (!vmw_dri1_check_version(&dri1->drm_version, &drm_required, + &drm_compat, "vmwgfx drm driver")) + return NULL; + dri1->api = &dri1_api_hooks; + break; + default: + return NULL; + } + } + + vws = vmw_winsys_create( fd ); + if (!vws) + goto out_no_vws; + + screen = svga_screen_create( &vws->base ); + if (!screen) + goto out_no_screen; + + return screen; + + /* Failure cases: + */ +out_no_screen: + vmw_winsys_destroy( vws ); + +out_no_vws: + return NULL; +} + +static INLINE boolean +vmw_dri1_intersect_src_bbox(struct drm_clip_rect *dst, + int dst_x, + int dst_y, + const struct drm_clip_rect *src, + const struct drm_clip_rect *bbox) +{ + int xy1; + int xy2; + + xy1 = ((int)src->x1 > (int)bbox->x1 + dst_x) ? src->x1 : + (int)bbox->x1 + dst_x; + xy2 = ((int)src->x2 < (int)bbox->x2 + dst_x) ? src->x2 : + (int)bbox->x2 + dst_x; + if (xy1 >= xy2 || xy1 < 0) + return FALSE; + + dst->x1 = xy1; + dst->x2 = xy2; + + xy1 = ((int)src->y1 > (int)bbox->y1 + dst_y) ? src->y1 : + (int)bbox->y1 + dst_y; + xy2 = ((int)src->y2 < (int)bbox->y2 + dst_y) ? src->y2 : + (int)bbox->y2 + dst_y; + if (xy1 >= xy2 || xy1 < 0) + return FALSE; + + dst->y1 = xy1; + dst->y2 = xy2; + return TRUE; +} + +/** + * No fancy get-surface-from-sarea stuff here. + * Just use the present blit. + */ + +static void +vmw_dri1_present_locked(struct pipe_context *locked_pipe, + struct pipe_surface *surf, + const struct drm_clip_rect *rect, + unsigned int num_clip, + int x_draw, int y_draw, + const struct drm_clip_rect *bbox, + struct pipe_fence_handle **p_fence) +{ + struct svga_winsys_surface *srf = + svga_screen_texture_get_winsys_surface(surf->texture); + struct vmw_svga_winsys_surface *vsrf = vmw_svga_winsys_surface(srf); + struct vmw_winsys_screen *vws = + vmw_winsys_screen(svga_winsys_screen(locked_pipe->screen)); + struct drm_clip_rect clip; + int i; + struct + { + SVGA3dCmdHeader header; + SVGA3dCmdPresent body; + SVGA3dCopyRect rect; + } cmd; + boolean visible = FALSE; + uint32_t fence_seq = 0; + + VMW_FUNC; + cmd.header.id = SVGA_3D_CMD_PRESENT; + cmd.header.size = sizeof cmd.body + sizeof cmd.rect; + cmd.body.sid = vsrf->sid; + + for (i = 0; i < num_clip; ++i) { + if (!vmw_dri1_intersect_src_bbox(&clip, x_draw, y_draw, rect++, bbox)) + continue; + + cmd.rect.x = clip.x1; + cmd.rect.y = clip.y1; + cmd.rect.w = clip.x2 - clip.x1; + cmd.rect.h = clip.y2 - clip.y1; + cmd.rect.srcx = (int)clip.x1 - x_draw; + cmd.rect.srcy = (int)clip.y1 - y_draw; + + vmw_printf("%s: Clip %d x %d y %d w %d h %d srcx %d srcy %d\n", + __FUNCTION__, + i, + cmd.rect.x, + cmd.rect.y, + cmd.rect.w, cmd.rect.h, cmd.rect.srcx, cmd.rect.srcy); + + vmw_ioctl_command(vws, &cmd, sizeof cmd.header + cmd.header.size, + &fence_seq); + visible = TRUE; + } + + *p_fence = (visible) ? vmw_pipe_fence(fence_seq) : NULL; + vmw_svga_winsys_surface_reference(&vsrf, NULL); +} + +/** + * FIXME: We'd probably want to cache these buffers in the + * screen, based on handle. + */ + +static struct pipe_buffer * +vmw_drm_buffer_from_handle(struct drm_api *drm_api, + struct pipe_screen *screen, + const char *name, + unsigned handle) +{ + struct vmw_svga_winsys_surface *vsrf; + struct svga_winsys_surface *ssrf; + struct vmw_winsys_screen *vws = + vmw_winsys_screen(svga_winsys_screen(screen)); + struct pipe_buffer *buf; + union drm_vmw_surface_reference_arg arg; + struct drm_vmw_surface_arg *req = &arg.req; + struct drm_vmw_surface_create_req *rep = &arg.rep; + int ret; + int i; + + /** + * The vmware device specific handle is the hardware SID. + * FIXME: We probably want to move this to the ioctl implementations. + */ + + memset(&arg, 0, sizeof(arg)); + req->sid = handle; + + ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_REF_SURFACE, + &arg, sizeof(arg)); + + if (ret) { + fprintf(stderr, "Failed referencing shared surface. SID %d.\n" + "Error %d (%s).\n", + handle, ret, strerror(-ret)); + return NULL; + } + + if (rep->mip_levels[0] != 1) { + fprintf(stderr, "Incorrect number of mipmap levels on shared surface." + " SID %d, levels %d\n", + handle, rep->mip_levels[0]); + goto out_mip; + } + + for (i=1; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { + if (rep->mip_levels[i] != 0) { + fprintf(stderr, "Incorrect number of faces levels on shared surface." + " SID %d, face %d present.\n", + handle, i); + goto out_mip; + } + } + + vsrf = CALLOC_STRUCT(vmw_svga_winsys_surface); + if (!vsrf) + goto out_mip; + + pipe_reference_init(&vsrf->refcnt, 1); + p_atomic_set(&vsrf->validated, 0); + vsrf->sid = handle; + ssrf = svga_winsys_surface(vsrf); + buf = svga_screen_buffer_wrap_surface(screen, rep->format, ssrf); + if (!buf) + vmw_svga_winsys_surface_reference(&vsrf, NULL); + + return buf; + out_mip: + vmw_ioctl_surface_destroy(vws, handle); + return NULL; +} + +static struct pipe_texture * +vmw_drm_texture_from_handle(struct drm_api *drm_api, + struct pipe_screen *screen, + struct pipe_texture *templat, + const char *name, + unsigned stride, + unsigned handle) +{ + struct pipe_buffer *buffer; + buffer = vmw_drm_buffer_from_handle(drm_api, screen, name, handle); + + if (!buffer) + return NULL; + + return screen->texture_blanket(screen, templat, &stride, buffer); +} + +static boolean +vmw_drm_handle_from_buffer(struct drm_api *drm_api, + struct pipe_screen *screen, + struct pipe_buffer *buffer, + unsigned *handle) +{ + struct svga_winsys_surface *surface = + svga_screen_buffer_get_winsys_surface(buffer); + struct vmw_svga_winsys_surface *vsrf; + + if (!surface) + return FALSE; + + vsrf = vmw_svga_winsys_surface(surface); + *handle = vsrf->sid; + vmw_svga_winsys_surface_reference(&vsrf, NULL); + return TRUE; +} + +static boolean +vmw_drm_handle_from_texture(struct drm_api *drm_api, + struct pipe_screen *screen, + struct pipe_texture *texture, + unsigned *stride, + unsigned *handle) +{ + struct pipe_buffer *buffer; + + if (!svga_screen_buffer_from_texture(texture, &buffer, stride)) + return FALSE; + + return vmw_drm_handle_from_buffer(drm_api, screen, buffer, handle); +} + +static struct pipe_context* +vmw_drm_create_context(struct drm_api *drm_api, + struct pipe_screen *screen) +{ + return vmw_svga_context_create(screen); +} + +static struct dri1_api dri1_api_hooks = { + .front_srf_locked = NULL, + .present_locked = vmw_dri1_present_locked +}; + +static struct drm_api vmw_drm_api_hooks = { + .create_screen = vmw_drm_create_screen, + .create_context = vmw_drm_create_context, + .texture_from_shared_handle = vmw_drm_texture_from_handle, + .shared_handle_from_texture = vmw_drm_handle_from_texture, + .local_handle_from_texture = vmw_drm_handle_from_texture, +}; + +struct drm_api* drm_api_create() +{ + return trace_drm_create(&vmw_drm_api_hooks); +} |