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svga: Upload the dirty ranges instead of the whole buffer.

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This commit is contained in:
José Fonseca 2010-02-18 17:21:53 +00:00
parent 2452921e5a
commit d1a0225371
1 changed files with 53 additions and 50 deletions
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103
src/gallium/drivers/svga/svga_screen_buffer.c
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@ -612,7 +612,7 @@ svga_screen_init_buffer_functions(struct pipe_screen *screen)
}
/**
/**
* Copy the contents of the user buffer / malloc buffer to a hardware buffer.
*/
static INLINE enum pipe_error
@ -670,64 +670,67 @@ svga_buffer_upload_piecewise(struct svga_screen *ss,
struct svga_buffer *sbuf)
{
struct svga_winsys_screen *sws = ss->sws;
const unsigned alignment = sbuf->base.alignment;
const unsigned alignment = sizeof(void *);
const unsigned usage = 0;
unsigned size = sbuf->base.size;
unsigned offset = 0;
unsigned i;
assert(sbuf->map.num_ranges);
assert(!sbuf->dma.pending);
SVGA_DBG(DEBUG_DMA, "dma to sid %p\n", sbuf->handle);
/*
* TODO: upload only the modified ranges
*/
for (i = 0; i < sbuf->map.num_ranges; ++i) {
struct svga_buffer_range *range = &sbuf->map.ranges[i];
unsigned offset = range->start;
unsigned size = range->end - range->start;
offset = 0;
while (offset < sbuf->base.size) {
struct svga_winsys_buffer *hwbuf;
uint8_t *map;
enum pipe_error ret;
while (offset < range->end) {
struct svga_winsys_buffer *hwbuf;
uint8_t *map;
enum pipe_error ret;
if (offset + size > sbuf->base.size)
size = sbuf->base.size - offset;
if (offset + size > range->end)
size = range->end - offset;
hwbuf = svga_winsys_buffer_create(ss, alignment, usage, size);
while (!hwbuf) {
size /= 2;
if (!size)
return PIPE_ERROR_OUT_OF_MEMORY;
hwbuf = svga_winsys_buffer_create(ss, alignment, usage, size);
while (!hwbuf) {
size /= 2;
if (!size)
return PIPE_ERROR_OUT_OF_MEMORY;
hwbuf = svga_winsys_buffer_create(ss, alignment, usage, size);
}
SVGA_DBG(DEBUG_DMA, " bytes %u - %u\n",
offset, offset + size);
map = sws->buffer_map(sws, hwbuf,
PIPE_BUFFER_USAGE_CPU_WRITE |
PIPE_BUFFER_USAGE_DISCARD);
assert(map);
if (map) {
memcpy(map, sbuf->swbuf, size);
sws->buffer_unmap(sws, hwbuf);
}
ret = SVGA3D_BufferDMA(svga->swc,
hwbuf, sbuf->handle,
SVGA3D_WRITE_HOST_VRAM,
size, offset, sbuf->dma.flags);
if(ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = SVGA3D_BufferDMA(svga->swc,
hwbuf, sbuf->handle,
SVGA3D_WRITE_HOST_VRAM,
size, offset, sbuf->dma.flags);
assert(ret == PIPE_OK);
}
sbuf->dma.flags.discard = FALSE;
sws->buffer_destroy(sws, hwbuf);
offset += size;
}
SVGA_DBG(DEBUG_DMA, " bytes %u - %u\n",
offset, offset + size);
map = sws->buffer_map(sws, hwbuf,
PIPE_BUFFER_USAGE_CPU_WRITE |
PIPE_BUFFER_USAGE_DISCARD);
assert(map);
if (map) {
memcpy(map, sbuf->swbuf, size);
sws->buffer_unmap(sws, hwbuf);
}
ret = SVGA3D_BufferDMA(svga->swc,
hwbuf, sbuf->handle,
SVGA3D_WRITE_HOST_VRAM,
size, offset, sbuf->dma.flags);
if(ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = SVGA3D_BufferDMA(svga->swc,
hwbuf, sbuf->handle,
SVGA3D_WRITE_HOST_VRAM,
size, offset, sbuf->dma.flags);
assert(ret == PIPE_OK);
}
sbuf->dma.flags.discard = FALSE;
sws->buffer_destroy(sws, hwbuf);
offset += size;
}
sbuf->map.num_ranges = 0;