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i965g: Add functions needed by the winsys

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This commit is contained in:
Jakob Bornecrantz 2009-11-06 15:54:27 +00:00
parent 6949d5c777
commit 215b49ae1e
1 changed files with 115 additions and 2 deletions
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117
src/gallium/drivers/i965/brw_screen_texture.c
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@ -300,8 +300,6 @@ fail:
return NULL;
}
static struct pipe_texture *brw_texture_blanket(struct pipe_screen *screen,
const struct pipe_texture *templ,
const unsigned *stride,
@ -365,7 +363,122 @@ boolean brw_is_texture_referenced_by_bo( struct brw_screen *brw_screen,
return FALSE;
}
boolean brw_texture_get_winsys_buffer(struct pipe_texture *texture,
struct brw_winsys_buffer **buffer,
unsigned *stride)
{
struct brw_texture *tex = brw_texture(texture);
*buffer = tex->bo;
if (stride)
*stride = tex->pitch;
return TRUE;
}
struct pipe_texture *
brw_texture_blanket_winsys_buffer(struct pipe_screen *screen,
const struct pipe_texture *templ,
const unsigned pitch,
struct brw_winsys_buffer *buffer)
{
struct brw_screen *bscreen = brw_screen(screen);
struct brw_texture *tex;
enum brw_buffer_type buffer_type;
enum pipe_error ret;
if (pf_is_compressed(templ->format))
return NULL;
if (pf_is_depth_or_stencil(templ->format))
return NULL;
tex = CALLOC_STRUCT(brw_texture);
if (!tex)
return NULL;
memcpy(&tex->base, templ, sizeof *templ);
pipe_reference_init(&tex->base.reference, 1);
tex->base.screen = screen;
tex->cpp = pf_get_size(tex->base.format);
make_empty_list(&tex->views[0]);
make_empty_list(&tex->views[1]);
if (1)
tex->tiling = BRW_TILING_NONE;
else
tex->tiling = BRW_TILING_X;
if (!brw_texture_layout(bscreen, tex))
goto fail;
if (templ->tex_usage & (PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
PIPE_TEXTURE_USAGE_PRIMARY)) {
buffer_type = BRW_BUFFER_TYPE_SCANOUT;
} else {
buffer_type = BRW_BUFFER_TYPE_TEXTURE;
}
tex->bo = buffer;
if (tex->pitch != pitch)
goto fail;
/* fix this warning
if (tex->size > buffer->size)
goto fail;
*/
if (ret)
goto fail;
tex->ss.ss0.mipmap_layout_mode = BRW_SURFACE_MIPMAPLAYOUT_BELOW;
tex->ss.ss0.surface_type = translate_tex_target(tex->base.target);
tex->ss.ss0.surface_format = translate_tex_format(tex->base.format);
assert(tex->ss.ss0.surface_format != BRW_SURFACEFORMAT_INVALID);
/* This is ok for all textures with channel width 8bit or less:
*/
/* tex->ss.ss0.data_return_format = BRW_SURFACERETURNFORMAT_S1; */
/* XXX: what happens when tex->bo->offset changes???
*/
tex->ss.ss1.base_addr = 0; /* reloc */
tex->ss.ss2.mip_count = tex->base.last_level;
tex->ss.ss2.width = tex->base.width[0] - 1;
tex->ss.ss2.height = tex->base.height[0] - 1;
switch (tex->tiling) {
case BRW_TILING_NONE:
tex->ss.ss3.tiled_surface = 0;
tex->ss.ss3.tile_walk = 0;
break;
case BRW_TILING_X:
tex->ss.ss3.tiled_surface = 1;
tex->ss.ss3.tile_walk = BRW_TILEWALK_XMAJOR;
break;
case BRW_TILING_Y:
tex->ss.ss3.tiled_surface = 1;
tex->ss.ss3.tile_walk = BRW_TILEWALK_YMAJOR;
break;
}
tex->ss.ss3.pitch = (tex->pitch * tex->cpp) - 1;
tex->ss.ss3.depth = tex->base.depth[0] - 1;
tex->ss.ss4.min_lod = 0;
return &tex->base;
fail:
FREE(tex);
return NULL;
}
void brw_screen_tex_init( struct brw_screen *brw_screen )
{