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/**************************************************************************
*
* Copyright 2003 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.
*
**************************************************************************/
#include "i915_context.h"
#include "i915_blit.h"
#include "i915_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "pipe/p_util.h"
#include "pipe/p_inlines.h"
#include "pipe/p_winsys.h"
#include "pipe/util/p_tile.h"
/*
* XXX note: same as code in sp_surface.c
*/
static struct pipe_surface *
i915_get_tex_surface(struct pipe_context *pipe,
struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice)
{
struct i915_texture *tex = (struct i915_texture *)pt;
struct pipe_surface *ps;
unsigned offset; /* in bytes */
offset = tex->level_offset[level];
if (pt->target == PIPE_TEXTURE_CUBE) {
offset += tex->image_offset[level][face] * pt->cpp;
}
else if (pt->target == PIPE_TEXTURE_3D) {
offset += tex->image_offset[level][zslice] * pt->cpp;
}
else {
assert(face == 0);
assert(zslice == 0);
}
ps = pipe->winsys->surface_alloc(pipe->winsys);
if (ps) {
assert(ps->refcount);
assert(ps->winsys);
pipe_buffer_reference(pipe->winsys, &ps->buffer, tex->buffer);
ps->format = pt->format;
ps->cpp = pt->cpp;
ps->width = pt->width[level];
ps->height = pt->height[level];
ps->pitch = tex->pitch;
ps->offset = offset;
}
return ps;
}
/* Upload data to a rectangular sub-region. Lots of choices how to do this:
*
* - memcpy by span to current destination
* - upload data as new buffer and blit
*
* Currently always memcpy.
*/
static void
i915_surface_data(struct pipe_context *pipe,
struct pipe_surface *dst,
unsigned dstx, unsigned dsty,
const void *src, unsigned src_pitch,
unsigned srcx, unsigned srcy, unsigned width, unsigned height)
{
pipe_copy_rect(pipe_surface_map(dst),
dst->cpp, dst->pitch,
dstx, dsty, width, height, src, src_pitch, srcx, srcy);
pipe_surface_unmap(dst);
}
/* Assumes all values are within bounds -- no checking at this level -
* do it higher up if required.
*/
static void
i915_surface_copy(struct pipe_context *pipe,
struct pipe_surface *dst,
unsigned dstx, unsigned dsty,
struct pipe_surface *src,
unsigned srcx, unsigned srcy, unsigned width, unsigned height)
{
assert( dst != src );
assert( dst->cpp == src->cpp );
if (0) {
pipe_copy_rect(pipe_surface_map(dst),
dst->cpp,
dst->pitch,
dstx, dsty,
width, height,
pipe_surface_map(src),
src->pitch,
srcx, srcy);
pipe_surface_unmap(src);
pipe_surface_unmap(dst);
}
else {
i915_copy_blit( i915_context(pipe),
dst->cpp,
(short) src->pitch, src->buffer, src->offset,
(short) dst->pitch, dst->buffer, dst->offset,
(short) srcx, (short) srcy, (short) dstx, (short) dsty, (short) width, (short) height );
}
}
/* Fill a rectangular sub-region. Need better logic about when to
* push buffers into AGP - will currently do so whenever possible.
*/
static void *
get_pointer(struct pipe_surface *dst, void *dst_map, unsigned x, unsigned y)
{
return (char *)dst_map + (y * dst->pitch + x) * dst->cpp;
}
static void
i915_surface_fill(struct pipe_context *pipe,
struct pipe_surface *dst,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height, unsigned value)
{
if (0) {
unsigned i, j;
void *dst_map = pipe_surface_map(dst);
switch (dst->cpp) {
case 1: {
ubyte *row = get_pointer(dst, dst_map, dstx, dsty);
for (i = 0; i < height; i++) {
memset(row, value, width);
row += dst->pitch;
}
}
break;
case 2: {
ushort *row = get_pointer(dst, dst_map, dstx, dsty);
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++)
row[j] = (ushort) value;
row += dst->pitch;
}
}
break;
case 4: {
unsigned *row = get_pointer(dst, dst_map, dstx, dsty);
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++)
row[j] = value;
row += dst->pitch;
}
}
break;
default:
assert(0);
break;
}
pipe_surface_unmap( dst );
}
else {
i915_fill_blit( i915_context(pipe),
dst->cpp,
(short) dst->pitch,
dst->buffer, dst->offset,
(short) dstx, (short) dsty,
(short) width, (short) height,
value );
}
}
void
i915_init_surface_functions(struct i915_context *i915)
{
i915->pipe.get_tex_surface = i915_get_tex_surface;
i915->pipe.get_tile = pipe_get_tile_raw;
i915->pipe.put_tile = pipe_put_tile_raw;
i915->pipe.surface_data = i915_surface_data;
i915->pipe.surface_copy = i915_surface_copy;
i915->pipe.surface_fill = i915_surface_fill;
}
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