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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.
*
**************************************************************************/
#include "util/u_memory.h"
#include "util/u_simple_screen.h"
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "cell/common.h"
#include "cell_context.h"
#include "cell_screen.h"
#include "cell_texture.h"
#include "cell_public.h"
#include "state_tracker/sw_winsys.h"
static const char *
cell_get_vendor(struct pipe_screen *screen)
{
return "VMware, Inc.";
}
static const char *
cell_get_name(struct pipe_screen *screen)
{
return "Cell";
}
static int
cell_get_param(struct pipe_screen *screen, enum pipe_cap param)
{
switch (param) {
case PIPE_CAP_MAX_COMBINED_SAMPLERS:
return CELL_MAX_SAMPLERS;
case PIPE_CAP_NPOT_TEXTURES:
return 1;
case PIPE_CAP_TWO_SIDED_STENCIL:
return 1;
case PIPE_CAP_GLSL:
return 1;
case PIPE_CAP_ANISOTROPIC_FILTER:
return 0;
case PIPE_CAP_POINT_SPRITE:
return 1;
case PIPE_CAP_MAX_RENDER_TARGETS:
return 1;
case PIPE_CAP_OCCLUSION_QUERY:
return 1;
case PIPE_CAP_TIMER_QUERY:
return 0;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
return 10;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
return CELL_MAX_TEXTURE_LEVELS;
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
return 8; /* max 128x128x128 */
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
return CELL_MAX_TEXTURE_LEVELS;
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
return 0; /* XXX to do */
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
return 1;
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
return 0;
case PIPE_CAP_BLEND_EQUATION_SEPARATE:
return 1;
default:
return 0;
}
}
static int
cell_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
{
switch(shader)
{
case PIPE_SHADER_FRAGMENT:
switch (param) {
case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
return CELL_MAX_SAMPLERS;
default:
return tgsi_exec_get_shader_param(param);
}
case PIPE_SHADER_VERTEX:
case PIPE_SHADER_GEOMETRY:
return draw_get_shader_param(shader, param);
default:
return 0;
}
}
static float
cell_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
{
switch (param) {
case PIPE_CAP_MAX_LINE_WIDTH:
/* fall-through */
case PIPE_CAP_MAX_LINE_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAP_MAX_POINT_WIDTH:
/* fall-through */
case PIPE_CAP_MAX_POINT_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 0.0;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
return 16.0; /* arbitrary */
default:
return 0;
}
}
static boolean
cell_is_format_supported( struct pipe_screen *screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned tex_usage)
{
struct sw_winsys *winsys = cell_screen(screen)->winsys;
if (sample_count > 1)
return FALSE;
if (tex_usage & (PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED)) {
if (!winsys->is_displaytarget_format_supported(winsys, tex_usage, format))
return FALSE;
}
/* only a few formats are known to work at this time */
switch (format) {
case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
case PIPE_FORMAT_Z24X8_UNORM:
case PIPE_FORMAT_B8G8R8A8_UNORM:
case PIPE_FORMAT_I8_UNORM:
return TRUE;
default:
return FALSE;
}
}
static void
cell_destroy_screen( struct pipe_screen *screen )
{
struct cell_screen *sp_screen = cell_screen(screen);
struct sw_winsys *winsys = sp_screen->winsys;
if(winsys->destroy)
winsys->destroy(winsys);
FREE(screen);
}
/**
* Create a new pipe_screen object
* Note: we're not presently subclassing pipe_screen (no cell_screen) but
* that would be the place to put SPU thread/context info...
*/
struct pipe_screen *
cell_create_screen(struct sw_winsys *winsys)
{
struct cell_screen *screen = CALLOC_STRUCT(cell_screen);
if (!screen)
return NULL;
screen->winsys = winsys;
screen->base.winsys = NULL;
screen->base.destroy = cell_destroy_screen;
screen->base.get_name = cell_get_name;
screen->base.get_vendor = cell_get_vendor;
screen->base.get_param = cell_get_param;
screen->base.get_shader_param = cell_get_shader_param;
screen->base.get_paramf = cell_get_paramf;
screen->base.is_format_supported = cell_is_format_supported;
screen->base.context_create = cell_create_context;
cell_init_screen_texture_funcs(&screen->base);
return &screen->base;
}
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