/**********************************************************
* Copyright 2008-2009 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 "svga_cmd.h"
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "os/os_thread.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_resource.h"
#include "svga_format.h"
#include "svga_screen.h"
#include "svga_context.h"
#include "svga_resource_texture.h"
#include "svga_resource_buffer.h"
#include "svga_sampler_view.h"
#include "svga_winsys.h"
#include "svga_debug.h"
/* XXX: This isn't a real hardware flag, but just a hack for kernel to
* know about primary surfaces. Find a better way to accomplish this.
*/
#define SVGA3D_SURFACE_HINT_SCANOUT (1 << 9)
static INLINE void
svga_transfer_dma_band(struct svga_context *svga,
struct svga_transfer *st,
SVGA3dTransferType transfer,
unsigned y, unsigned h, unsigned srcy,
SVGA3dSurfaceDMAFlags flags)
{
struct svga_texture *texture = svga_texture(st->base.resource);
SVGA3dCopyBox box;
enum pipe_error ret;
box.x = st->base.box.x;
box.y = y;
box.z = st->base.box.z;
box.w = st->base.box.width;
box.h = h;
box.d = 1;
box.srcx = 0;
box.srcy = srcy;
box.srcz = 0;
if (st->base.resource->target == PIPE_TEXTURE_CUBE) {
st->face = st->base.box.z;
box.z = 0;
}
else
st->face = 0;
SVGA_DBG(DEBUG_DMA, "dma %s sid %p, face %u, (%u, %u, %u) - (%u, %u, %u), %ubpp\n",
transfer == SVGA3D_WRITE_HOST_VRAM ? "to" : "from",
texture->handle,
st->face,
st->base.box.x,
y,
box.z,
st->base.box.x + st->base.box.width,
y + h,
box.z + 1,
util_format_get_blocksize(texture->b.b.format) * 8 /
(util_format_get_blockwidth(texture->b.b.format)*util_format_get_blockheight(texture->b.b.format)));
ret = SVGA3D_SurfaceDMA(svga->swc, st, transfer, &box, 1, flags);
if(ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = SVGA3D_SurfaceDMA(svga->swc, st, transfer, &box, 1, flags);
}
}
static INLINE void
svga_transfer_dma(struct svga_context *svga,
struct svga_transfer *st,
SVGA3dTransferType transfer,
SVGA3dSurfaceDMAFlags flags)
{
struct svga_texture *texture = svga_texture(st->base.resource);
struct svga_screen *screen = svga_screen(texture->b.b.screen);
struct svga_winsys_screen *sws = screen->sws;
struct pipe_fence_handle *fence = NULL;
if (transfer == SVGA3D_READ_HOST_VRAM) {
SVGA_DBG(DEBUG_PERF, "%s: readback transfer\n", __FUNCTION__);
}
/* Ensure any pending operations on host surfaces are queued on the command
* buffer first.
*/
svga_surfaces_flush( svga );
if(!st->swbuf) {
/* Do the DMA transfer in a single go */
svga_transfer_dma_band(svga, st, transfer,
st->base.box.y, st->base.box.height, 0,
flags);
if(transfer == SVGA3D_READ_HOST_VRAM) {
svga_context_flush(svga, &fence);
sws->fence_finish(sws, fence, 0);
sws->fence_reference(sws, &fence, NULL);
}
}
else {
int y, h, srcy;
unsigned blockheight = util_format_get_blockheight(st->base.resource->format);
h = st->hw_nblocksy * blockheight;
srcy = 0;
for(y = 0; y < st->base.box.height; y += h) {
unsigned offset, length;
void *hw, *sw;
if (y + h > st->base.box.height)
h = st->base.box.height - y;
/* Transfer band must be aligned to pixel block boundaries */
offset = y * st->base.stride / blockheight;
length = h * st->base.stride / blockheight;
sw = (uint8_t *)st->swbuf + offset;
if (transfer == SVGA3D_WRITE_HOST_VRAM) {
unsigned usage = PIPE_TRANSFER_WRITE;
/* Wait for the previous DMAs to complete */
/* TODO: keep one DMA (at half the size) in the background */
if (y) {
svga_context_flush(svga, NULL);
usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
}
hw = sws->buffer_map(sws, st->hwbuf, usage);
if (hw) {
sws->buffer_unmap(sws, st->hwbuf);
}
}
svga_transfer_dma_band(svga, st, transfer, y, h, srcy, flags);
/*
* Prevent the texture contents to be discarded on the next band
* upload.
*/
flags.discard = FALSE;
if(transfer == SVGA3D_READ_HOST_VRAM) {
svga_context_flush(svga, &fence);
sws->fence_finish(sws, fence, 0);
hw = sws->buffer_map(sws, st->hwbuf, PIPE_TRANSFER_READ);
if(hw) {
sws->buffer_unmap(sws, st->hwbuf);
}
}
}
}
}
static boolean
svga_texture_get_handle(struct pipe_screen *screen,
struct pipe_resource *texture,
struct winsys_handle *whandle)
{
struct svga_winsys_screen *sws = svga_winsys_screen(texture->screen);
unsigned stride;
assert(svga_texture
(texture
)->key.
cachable == 0); svga_texture(texture)->key.cachable = 0;
stride = util_format_get_nblocksx(texture->format, texture->width0) *
util_format_get_blocksize(texture->format);
return sws->surface_get_handle(sws, svga_texture(texture)->handle, stride, whandle);
}
static void
svga_texture_destroy(struct pipe_screen *screen,
struct pipe_resource *pt)
{
struct svga_screen *ss = svga_screen(screen);
struct svga_texture *tex = svga_texture(pt);
ss->texture_timestamp++;
svga_sampler_view_reference(&tex->cached_view, NULL);
/*
DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
*/
SVGA_DBG(DEBUG_DMA, "unref sid %p (texture)\n", tex->handle);
svga_screen_surface_destroy(ss, &tex->key, &tex->handle);
ss->total_resource_bytes -= tex->size;
FREE(tex);
}
/* XXX: Still implementing this as if it was a screen function, but
* can now modify it to queue transfers on the context.
*/
static void *
svga_texture_transfer_map(struct pipe_context *pipe,
struct pipe_resource *texture,
unsigned level,
unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **ptransfer)
{
struct svga_context *svga = svga_context(pipe);
struct svga_screen *ss = svga_screen(pipe->screen);
struct svga_winsys_screen *sws = ss->sws;
struct svga_transfer *st;
unsigned nblocksx = util_format_get_nblocksx(texture->format, box->width);
unsigned nblocksy = util_format_get_nblocksy(texture->format, box->height);
/* We can't map texture storage directly */
if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
return NULL;
st = CALLOC_STRUCT(svga_transfer);
if (!st)
return NULL;
st->base.resource = texture;
st->base.level = level;
st->base.usage = usage;
st->base.box = *box;
st->base.stride = nblocksx*util_format_get_blocksize(texture->format);
st->base.layer_stride = st->base.stride * nblocksy;
st->hw_nblocksy = nblocksy;
st->hwbuf = svga_winsys_buffer_create(svga,
1,
0,
st->hw_nblocksy * st->base.stride * box->depth);
while(!st->hwbuf && (st->hw_nblocksy /= 2)) {
st->hwbuf = svga_winsys_buffer_create(svga,
1,
0,
st->hw_nblocksy * st->base.stride * box->depth);
}
if(!st->hwbuf)
goto no_hwbuf;
if(st->hw_nblocksy < nblocksy) {
/* We couldn't allocate a hardware buffer big enough for the transfer,
* so allocate regular malloc memory instead */
if (0) {
debug_printf("%s: failed to allocate %u KB of DMA, "
"splitting into %u x %u KB DMA transfers\n",
__FUNCTION__,
(nblocksy*st->base.stride + 1023)/1024,
(nblocksy + st->hw_nblocksy - 1)/st->hw_nblocksy,
(st->hw_nblocksy*st->base.stride + 1023)/1024);
}
st->swbuf = MALLOC(nblocksy*st->base.stride);
if(!st->swbuf)
goto no_swbuf;
}
if (usage & PIPE_TRANSFER_READ) {
SVGA3dSurfaceDMAFlags flags;
memset(&flags
, 0, sizeof flags
); svga_transfer_dma(svga, st, SVGA3D_READ_HOST_VRAM, flags);
}
if (st->swbuf) {
*ptransfer = &st->base;
return st->swbuf;
} else {
/* The wait for read transfers already happened when svga_transfer_dma
* was called. */
void *map = sws->buffer_map(sws, st->hwbuf, usage);
if (!map)
goto fail;
*ptransfer = &st->base;
return map;
}
fail:
FREE(st->swbuf);
no_swbuf:
sws->buffer_destroy(sws, st->hwbuf);
no_hwbuf:
FREE(st);
return NULL;
}
/* XXX: Still implementing this as if it was a screen function, but
* can now modify it to queue transfers on the context.
*/
static void
svga_texture_transfer_unmap(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct svga_context *svga = svga_context(pipe);
struct svga_screen *ss = svga_screen(pipe->screen);
struct svga_winsys_screen *sws = ss->sws;
struct svga_transfer *st = svga_transfer(transfer);
struct svga_texture *tex = svga_texture(transfer->resource);
if(!st->swbuf)
sws->buffer_unmap(sws, st->hwbuf);
if (st->base.usage & PIPE_TRANSFER_WRITE) {
SVGA3dSurfaceDMAFlags flags;
memset(&flags
, 0, sizeof flags
); if (transfer->usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
flags.discard = TRUE;
}
if (transfer->usage & PIPE_TRANSFER_UNSYNCHRONIZED) {
flags.unsynchronized = TRUE;
}
svga_transfer_dma(svga, st, SVGA3D_WRITE_HOST_VRAM, flags);
ss->texture_timestamp++;
svga_age_texture_view(tex, transfer->level);
if (transfer->resource->target == PIPE_TEXTURE_CUBE)
svga_define_texture_level(tex, transfer->box.z, transfer->level);
else
svga_define_texture_level(tex, 0, transfer->level);
}
FREE(st->swbuf);
sws->buffer_destroy(sws, st->hwbuf);
FREE(st);
}
struct u_resource_vtbl svga_texture_vtbl =
{
svga_texture_get_handle, /* get_handle */
svga_texture_destroy, /* resource_destroy */
svga_texture_transfer_map, /* transfer_map */
u_default_transfer_flush_region, /* transfer_flush_region */
svga_texture_transfer_unmap, /* transfer_unmap */
u_default_transfer_inline_write /* transfer_inline_write */
};
struct pipe_resource *
svga_texture_create(struct pipe_screen *screen,
const struct pipe_resource *template)
{
struct svga_screen *svgascreen = svga_screen(screen);
struct svga_texture *tex = CALLOC_STRUCT(svga_texture);
if (!tex)
goto error1;
tex->b.b = *template;
tex->b.vtbl = &svga_texture_vtbl;
pipe_reference_init(&tex->b.b.reference, 1);
tex->b.b.screen = screen;
assert(template
->last_level
< SVGA_MAX_TEXTURE_LEVELS
); if(template->last_level >= SVGA_MAX_TEXTURE_LEVELS)
goto error2;
tex->key.flags = 0;
tex->key.size.width = template->width0;
tex->key.size.height = template->height0;
tex->key.size.depth = template->depth0;
if(template->target == PIPE_TEXTURE_CUBE) {
tex->key.flags |= SVGA3D_SURFACE_CUBEMAP;
tex->key.numFaces = 6;
}
else {
tex->key.numFaces = 1;
}
if (template->target == PIPE_TEXTURE_3D) {
tex->key.flags |= SVGA3D_SURFACE_HINT_VOLUME;
}
tex->key.cachable = 1;
if (template->bind & PIPE_BIND_SAMPLER_VIEW)
tex->key.flags |= SVGA3D_SURFACE_HINT_TEXTURE;
if (template->bind & PIPE_BIND_DISPLAY_TARGET) {
tex->key.cachable = 0;
}
if (template->bind & PIPE_BIND_SHARED) {
tex->key.cachable = 0;
}
if (template->bind & (PIPE_BIND_SCANOUT |
PIPE_BIND_CURSOR)) {
tex->key.flags |= SVGA3D_SURFACE_HINT_SCANOUT;
tex->key.cachable = 0;
}
/*
* Note: Previously we never passed the
* SVGA3D_SURFACE_HINT_RENDERTARGET hint. Mesa cannot
* know beforehand whether a texture will be used as a rendertarget or not
* and it always requests PIPE_BIND_RENDER_TARGET, therefore
* passing the SVGA3D_SURFACE_HINT_RENDERTARGET here defeats its purpose.
*
* However, this was changed since other state trackers
* (XA for example) uses it accurately and certain device versions
* relies on it in certain situations to render correctly.
*/
if((template->bind & PIPE_BIND_RENDER_TARGET) &&
!util_format_is_s3tc(template->format))
tex->key.flags |= SVGA3D_SURFACE_HINT_RENDERTARGET;
if(template->bind & PIPE_BIND_DEPTH_STENCIL)
tex->key.flags |= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
tex->key.numMipLevels = template->last_level + 1;
tex->key.format = svga_translate_format(svgascreen, template->format, template->bind);
if(tex->key.format == SVGA3D_FORMAT_INVALID)
goto error2;
SVGA_DBG(DEBUG_DMA, "surface_create for texture\n", tex->handle);
tex->handle = svga_screen_surface_create(svgascreen, &tex->key);
if (tex->handle)
SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture)\n", tex->handle);
debug_reference(&tex->b.b.reference,
(debug_reference_descriptor)debug_describe_resource, 0);
tex->size = util_resource_size(template);
svgascreen->total_resource_bytes += tex->size;
return &tex->b.b;
error2:
FREE(tex);
error1:
return NULL;
}
struct pipe_resource *
svga_texture_from_handle(struct pipe_screen *screen,
const struct pipe_resource *template,
struct winsys_handle *whandle)
{
struct svga_winsys_screen *sws = svga_winsys_screen(screen);
struct svga_winsys_surface *srf;
struct svga_texture *tex;
enum SVGA3dSurfaceFormat format = 0;
/* Only supports one type */
if ((template->target != PIPE_TEXTURE_2D &&
template->target != PIPE_TEXTURE_RECT) ||
template->last_level != 0 ||
template->depth0 != 1) {
return NULL;
}
srf = sws->surface_from_handle(sws, whandle, &format);
if (!srf)
return NULL;
if (svga_translate_format(svga_screen(screen), template->format, template->bind) != format) {
unsigned f1 = svga_translate_format(svga_screen(screen), template->format, template->bind);
unsigned f2 = format;
/* It's okay for XRGB and ARGB or depth with/out stencil to get mixed up */
if ( !( (f1 == SVGA3D_X8R8G8B8 && f2 == SVGA3D_A8R8G8B8) ||
(f1 == SVGA3D_A8R8G8B8 && f2 == SVGA3D_X8R8G8B8) ||
(f1 == SVGA3D_Z_D24X8 && f2 == SVGA3D_Z_D24S8) ||
(f1 == SVGA3D_Z_DF24 && f2 == SVGA3D_Z_D24S8_INT) ) ) {
debug_printf("%s wrong format %u != %u\n", __FUNCTION__, f1, f2);
return NULL;
}
}
tex = CALLOC_STRUCT(svga_texture);
if (!tex)
return NULL;
tex->b.b = *template;
tex->b.vtbl = &svga_texture_vtbl;
pipe_reference_init(&tex->b.b.reference, 1);
tex->b.b.screen = screen;
SVGA_DBG(DEBUG_DMA, "wrap surface sid %p\n", srf);
tex->key.cachable = 0;
tex->handle = srf;
return &tex->b.b;
}