diff options
Diffstat (limited to 'src/gallium/winsys/g3dvl/dri/dri_winsys.c')
-rw-r--r-- | src/gallium/winsys/g3dvl/dri/dri_winsys.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/src/gallium/winsys/g3dvl/dri/dri_winsys.c b/src/gallium/winsys/g3dvl/dri/dri_winsys.c new file mode 100644 index 00000000000..276731ca588 --- /dev/null +++ b/src/gallium/winsys/g3dvl/dri/dri_winsys.c @@ -0,0 +1,258 @@ +/************************************************************************** + * + * Copyright 2009 Younes Manton. + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 <vl_winsys.h> +#include <driclient.h> +#include <pipe/p_screen.h> +#include <pipe/p_context.h> +#include <pipe/p_state.h> +#include <util/u_memory.h> +#include <util/u_hash.h> +#include <util/u_hash_table.h> +#include <util/u_inlines.h> +#include <state_tracker/drm_driver.h> +#include <X11/Xlibint.h> + +struct vl_dri_screen +{ + struct vl_screen base; + dri_screen_t *dri_screen; + struct util_hash_table *drawable_table; + Drawable last_seen_drawable; +}; + +struct vl_dri_context +{ + struct vl_context base; + int fd; +}; + +static struct pipe_surface* +vl_dri2_get_front(struct vl_context *vctx, Drawable drawable) +{ + int w, h; + unsigned int attachments[1] = {DRI_BUFFER_FRONT_LEFT}; + int count; + DRI2Buffer *dri2_front; + struct pipe_resource *front_tex; + struct pipe_surface *front_surf = NULL; + + assert(vctx); + + struct vl_dri_screen *vl_dri_scrn = (struct vl_dri_screen*)vctx->vscreen; + assert(vl_dri_scrn); + + dri2_front = DRI2GetBuffers(vl_dri_scrn->dri_screen->display, + drawable, &w, &h, attachments, 1, &count); + + assert(count == 1); + + if (dri2_front) { + struct winsys_handle dri2_front_handle = + { + .type = DRM_API_HANDLE_TYPE_SHARED, + .handle = dri2_front->name, + .stride = dri2_front->pitch + }; + struct pipe_resource template; + struct pipe_surface surf_template; + + memset(&template, 0, sizeof(struct pipe_resource)); + template.target = PIPE_TEXTURE_2D; + template.format = PIPE_FORMAT_B8G8R8X8_UNORM; + template.last_level = 0; + template.width0 = w; + template.height0 = h; + template.depth0 = 1; + template.usage = PIPE_USAGE_STATIC; + template.bind = PIPE_BIND_RENDER_TARGET; + template.flags = 0; + + front_tex = vl_dri_scrn->base.pscreen->resource_from_handle(vl_dri_scrn->base.pscreen, &template, &dri2_front_handle); + if (front_tex) { + memset(&surf_template, 0, sizeof(surf_template)); + surf_template.format = front_tex->format; + surf_template.usage = PIPE_BIND_RENDER_TARGET; + front_surf = vctx->pipe->create_surface(vctx->pipe, front_tex, &surf_template); + } + pipe_resource_reference(&front_tex, NULL); + Xfree(dri2_front); + } + + return front_surf; +} + +static void +vl_dri2_flush_frontbuffer(struct pipe_screen *screen, + struct pipe_resource *resource, + unsigned level, unsigned layer, + void *context_private) +{ + struct vl_dri_context *vl_dri_ctx = (struct vl_dri_context*)context_private; + struct vl_dri_screen *vl_dri_scrn = (struct vl_dri_screen*)vl_dri_ctx->base.vscreen; + + assert(screen); + assert(resource); + assert(context_private); + + dri2CopyDrawable(vl_dri_scrn->dri_screen, vl_dri_scrn->last_seen_drawable, + DRI_BUFFER_FRONT_LEFT, DRI_BUFFER_FAKE_FRONT_LEFT); +} + +struct pipe_surface* +vl_drawable_surface_get(struct vl_context *vctx, Drawable drawable) +{ + assert(vctx); + + struct vl_dri_screen *vl_dri_scrn = (struct vl_dri_screen*)vctx->vscreen; + assert(vl_dri_scrn); + + if (vl_dri_scrn->last_seen_drawable != drawable) { + /* Hash table business depends on this equality */ + assert(None == NULL); + Drawable lookup_drawable = (Drawable)util_hash_table_get(vl_dri_scrn->drawable_table, (void*)drawable); + if (lookup_drawable == None) { + dri2CreateDrawable(vl_dri_scrn->dri_screen, drawable); + util_hash_table_set(vl_dri_scrn->drawable_table, (void*)drawable, (void*)drawable); + } + vl_dri_scrn->last_seen_drawable = drawable; + } + + return vl_dri2_get_front(vctx, drawable); +} + +void* +vl_contextprivate_get(struct vl_context *vctx, struct pipe_surface *displaytarget) +{ + return vctx; +} + +static unsigned drawable_hash(void *key) +{ + Drawable drawable = (Drawable)key; + assert(drawable != None); + return util_hash_crc32(&drawable, sizeof(Drawable)); +} + +static int drawable_cmp(void *key1, void *key2) +{ + Drawable d1 = (Drawable)key1; + Drawable d2 = (Drawable)key2; + assert(d1 != None); + assert(d2 != None); + return d1 != d2; +} + +struct vl_screen* +vl_screen_create(Display *display, int screen) +{ + struct vl_dri_screen *vl_dri_scrn; + + assert(display); + + vl_dri_scrn = CALLOC_STRUCT(vl_dri_screen); + if (!vl_dri_scrn) + goto no_struct; + + if (dri2CreateScreen(display, screen, &vl_dri_scrn->dri_screen)) + goto no_dri2screen; + + vl_dri_scrn->base.pscreen = driver_descriptor.create_screen(vl_dri_scrn->dri_screen->fd); + + if (!vl_dri_scrn->base.pscreen) + goto no_pscreen; + + vl_dri_scrn->drawable_table = util_hash_table_create(&drawable_hash, &drawable_cmp); + if (!vl_dri_scrn->drawable_table) + goto no_hash; + + vl_dri_scrn->last_seen_drawable = None; + vl_dri_scrn->base.pscreen->flush_frontbuffer = vl_dri2_flush_frontbuffer; + + return &vl_dri_scrn->base; + +no_hash: + vl_dri_scrn->base.pscreen->destroy(vl_dri_scrn->base.pscreen); +no_pscreen: + dri2DestroyScreen(vl_dri_scrn->dri_screen); +no_dri2screen: + FREE(vl_dri_scrn); +no_struct: + return NULL; +} + +void vl_screen_destroy(struct vl_screen *vscreen) +{ + struct vl_dri_screen *vl_dri_scrn = (struct vl_dri_screen*)vscreen; + + assert(vscreen); + + util_hash_table_destroy(vl_dri_scrn->drawable_table); + vl_dri_scrn->base.pscreen->destroy(vl_dri_scrn->base.pscreen); + dri2DestroyScreen(vl_dri_scrn->dri_screen); + FREE(vl_dri_scrn); +} + +struct vl_context* +vl_video_create(struct vl_screen *vscreen) +{ + struct vl_dri_screen *vl_dri_scrn = (struct vl_dri_screen*)vscreen; + struct vl_dri_context *vl_dri_ctx; + + vl_dri_ctx = CALLOC_STRUCT(vl_dri_context); + if (!vl_dri_ctx) + goto no_struct; + + vl_dri_ctx->base.pipe = vscreen->pscreen->context_create(vscreen->pscreen, vl_dri_ctx); + if (!vl_dri_ctx->base.pipe) { + debug_printf("[G3DVL] No video support found on %s/%s.\n", + vscreen->pscreen->get_vendor(vscreen->pscreen), + vscreen->pscreen->get_name(vscreen->pscreen)); + goto no_pipe; + } + + vl_dri_ctx->base.vscreen = vscreen; + vl_dri_ctx->fd = vl_dri_scrn->dri_screen->fd; + + return &vl_dri_ctx->base; + +no_pipe: + FREE(vl_dri_ctx); + +no_struct: + return NULL; +} + +void vl_video_destroy(struct vl_context *vctx) +{ + struct vl_dri_context *vl_dri_ctx = (struct vl_dri_context*)vctx; + + assert(vctx); + + vl_dri_ctx->base.pipe->destroy(vl_dri_ctx->base.pipe); + FREE(vl_dri_ctx); +} |