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/*
* 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_hooks.buffer_from_texture(tex, &buf, &stride);
drm_api_hooks.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(&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, 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: */
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