diff options
Diffstat (limited to 'src/gallium/state_trackers/xorg/xorg_dri2.c')
| -rw-r--r-- | src/gallium/state_trackers/xorg/xorg_dri2.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/xorg/xorg_dri2.c b/src/gallium/state_trackers/xorg/xorg_dri2.c new file mode 100644 index 0000000000..72b333eaf1 --- /dev/null +++ b/src/gallium/state_trackers/xorg/xorg_dri2.c @@ -0,0 +1,212 @@ +/* + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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. + * + * + * Author: Alan Hourihane <alanh@tungstengraphics.com> + * Author: Jakob Bornecrantz <wallbraker@gmail.com> + * + */ + +#include "xf86.h" +#include "xf86_OSproc.h" + +#include "xorg_tracker.h" + +#include "dri2.h" + +#include "pipe/p_state.h" +#include "pipe/p_inlines.h" + +typedef struct { + PixmapPtr pPixmap; + struct pipe_texture *tex; + struct pipe_buffer *buf; +} *BufferPrivatePtr; + +static DRI2BufferPtr +driCreateBuffers(DrawablePtr pDraw, unsigned int *attachments, int count) +{ + struct pipe_texture *depth, *tex; + struct pipe_buffer *buf; + ScreenPtr pScreen = pDraw->pScreen; + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + modesettingPtr ms = modesettingPTR(pScrn); + BufferPrivatePtr privates; + DRI2BufferPtr buffers; + PixmapPtr pPixmap; + unsigned stride, handle; + int i; + + buffers = xcalloc(count, sizeof *buffers); + if (!buffers) + goto fail_buffers; + + privates = xcalloc(count, sizeof *privates); + if (!privates) + goto fail_privates; + + depth = NULL; + for (i = 0; i < count; i++) { + pPixmap = NULL; + tex = NULL; + buf = NULL; + if (attachments[i] == DRI2BufferFrontLeft) { + if (pDraw->type == DRAWABLE_PIXMAP) + pPixmap = (PixmapPtr) pDraw; + else + pPixmap = (*pScreen->GetWindowPixmap)((WindowPtr) pDraw); + pPixmap->refcnt++; + tex = xorg_exa_get_texture(pPixmap); + } else if (attachments[i] == DRI2BufferStencil) { + pipe_texture_reference(&tex, depth); + } else if (attachments[i] == DRI2BufferDepth) { + struct pipe_texture template; + + memset(&template, 0, sizeof(template)); + template.target = PIPE_TEXTURE_2D; + template.compressed = 0; + template.format = PIPE_FORMAT_S8Z24_UNORM; + pf_get_block(template.format, &template.block); + template.width[0] = pDraw->width; + template.height[0] = pDraw->height; + template.depth[0] = 1; + template.last_level = 0; + template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET; + tex = ms->screen->texture_create(ms->screen, &template); + } else { + struct pipe_texture template; + memset(&template, 0, sizeof(template)); + template.target = PIPE_TEXTURE_2D; + template.compressed = 0; + template.format = PIPE_FORMAT_A8R8G8B8_UNORM; + pf_get_block(template.format, &template.block); + template.width[0] = pDraw->width; + template.height[0] = pDraw->height; + template.depth[0] = 1; + template.last_level = 0; + template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET; + tex = ms->screen->texture_create(ms->screen, &template); + } + + drm_api_hocks.buffer_from_texture(tex, &buf, &stride); + drm_api_hocks.global_handle_from_buffer(ms->screen, buf, &handle); + + buffers[i].name = handle; + buffers[i].attachment = attachments[i]; + buffers[i].pitch = stride; + buffers[i].cpp = 4; + buffers[i].driverPrivate = &privates[i]; + buffers[i].flags = 0; /* not tiled */ + privates[i].pPixmap = pPixmap; + privates[i].buf = buf; + privates[i].tex = tex; + } + + return buffers; + +fail_privates: + xfree(buffers); +fail_buffers: + return NULL; +} + +static void +driDestroyBuffers(DrawablePtr pDraw, DRI2BufferPtr buffers, int count) +{ + ScreenPtr pScreen = pDraw->pScreen; + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + modesettingPtr ms = modesettingPTR(pScrn); + BufferPrivatePtr private; + int i; + + for (i = 0; i < count; i++) { + private = buffers[i].driverPrivate; + + if (private->pPixmap) + (*pScreen->DestroyPixmap)(private->pPixmap); + + pipe_texture_reference(&private->tex, NULL); + pipe_buffer_reference(ms->screen, &private->buf, NULL); + } + + if (buffers) { + xfree(buffers[0].driverPrivate); + xfree(buffers); + } +} + +static void +driCopyRegion(DrawablePtr pDraw, RegionPtr pRegion, + DRI2BufferPtr pDestBuffer, DRI2BufferPtr pSrcBuffer) +{ + ScreenPtr pScreen = pDraw->pScreen; + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + modesettingPtr ms = modesettingPTR(pScrn); + BufferPrivatePtr dst_priv = pDestBuffer->driverPrivate; + BufferPrivatePtr src_priv = pSrcBuffer->driverPrivate; + + struct pipe_surface *dst_surf = + ms->screen->get_tex_surface(ms->screen, dst_priv->tex, 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + struct pipe_surface *src_surf = + ms->screen->get_tex_surface(ms->screen, src_priv->tex, 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_READ); + + ms->ctx->surface_copy(ms->ctx, 0, dst_surf, 0, 0, src_surf, + 0, 0, pDraw->width, pDraw->height); + + pipe_surface_reference(&dst_surf, NULL); + pipe_surface_reference(&src_surf, NULL); +} + +Bool +driScreenInit(ScreenPtr pScreen) +{ + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + modesettingPtr ms = modesettingPTR(pScrn); + DRI2InfoRec dri2info; + + dri2info.version = 1; + dri2info.fd = ms->fd; +#if 0 + dri2info.driverName = pScrn->name; +#else + dri2info.driverName = "i915"; /* FIXME */ +#endif + dri2info.deviceName = "/dev/dri/card0"; /* FIXME */ + + dri2info.CreateBuffers = driCreateBuffers; + dri2info.DestroyBuffers = driDestroyBuffers; + dri2info.CopyRegion = driCopyRegion; + + return DRI2ScreenInit(pScreen, &dri2info); +} + +void +driCloseScreen(ScreenPtr pScreen) +{ + DRI2CloseScreen(pScreen); +} + +/* vim: set sw=4 ts=8 sts=4: */ |