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#include "pipe/p_screen.h"
#include "nv20_context.h"
#include "nv20_screen.h"
static int
nv20_screen_get_param(struct pipe_screen *screen, int param)
{
switch (param) {
case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
return 2;
case PIPE_CAP_NPOT_TEXTURES:
return 0;
case PIPE_CAP_TWO_SIDED_STENCIL:
return 0;
case PIPE_CAP_GLSL:
return 0;
case PIPE_CAP_S3TC:
return 0;
case PIPE_CAP_ANISOTROPIC_FILTER:
return 1;
case PIPE_CAP_POINT_SPRITE:
return 0;
case PIPE_CAP_MAX_RENDER_TARGETS:
return 1;
case PIPE_CAP_OCCLUSION_QUERY:
return 0;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
return 0;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
return 12;
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
return 0;
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
return 12;
case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
return 0;
case NOUVEAU_CAP_HW_VTXBUF:
case NOUVEAU_CAP_HW_IDXBUF:
return 0;
default:
NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
return 0;
}
}
static float
nv20_screen_get_paramf(struct pipe_screen *screen, int param)
{
switch (param) {
case PIPE_CAP_MAX_LINE_WIDTH:
case PIPE_CAP_MAX_LINE_WIDTH_AA:
return 10.0;
case PIPE_CAP_MAX_POINT_WIDTH:
case PIPE_CAP_MAX_POINT_WIDTH_AA:
return 64.0;
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 2.0;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
return 4.0;
default:
NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
return 0.0;
}
}
static boolean
nv20_screen_is_format_supported(struct pipe_screen *screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned tex_usage, unsigned geom_flags)
{
if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
switch (format) {
case PIPE_FORMAT_A8R8G8B8_UNORM:
case PIPE_FORMAT_R5G6B5_UNORM:
case PIPE_FORMAT_Z24S8_UNORM:
case PIPE_FORMAT_Z16_UNORM:
return TRUE;
default:
break;
}
} else {
switch (format) {
case PIPE_FORMAT_A8R8G8B8_UNORM:
case PIPE_FORMAT_A1R5G5B5_UNORM:
case PIPE_FORMAT_A4R4G4B4_UNORM:
case PIPE_FORMAT_R5G6B5_UNORM:
case PIPE_FORMAT_L8_UNORM:
case PIPE_FORMAT_A8_UNORM:
case PIPE_FORMAT_I8_UNORM:
return TRUE;
default:
break;
}
}
return FALSE;
}
static void
nv20_screen_destroy(struct pipe_screen *pscreen)
{
struct nv20_screen *screen = nv20_screen(pscreen);
nouveau_notifier_free(&screen->sync);
nouveau_grobj_free(&screen->kelvin);
FREE(pscreen);
}
static struct pipe_buffer *
nv20_surface_buffer(struct pipe_surface *surf)
{
struct nv20_miptree *mt = (struct nv20_miptree *)surf->texture;
return mt->buffer;
}
struct pipe_screen *
nv20_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev)
{
struct nv20_screen *screen = CALLOC_STRUCT(nv20_screen);
struct nouveau_channel *chan;
struct pipe_screen *pscreen;
unsigned kelvin_class = 0;
int ret;
if (!screen)
return NULL;
pscreen = &screen->base.base;
ret = nouveau_screen_init(&screen->base, dev);
if (ret) {
nv20_screen_destroy(pscreen);
return NULL;
}
chan = screen->base.channel;
pscreen->winsys = ws;
pscreen->destroy = nv20_screen_destroy;
pscreen->get_param = nv20_screen_get_param;
pscreen->get_paramf = nv20_screen_get_paramf;
pscreen->is_format_supported = nv20_screen_is_format_supported;
nv20_screen_init_miptree_functions(pscreen);
nv20_screen_init_transfer_functions(pscreen);
/* 3D object */
if (dev->chipset >= 0x25)
kelvin_class = NV25TCL;
else if (dev->chipset >= 0x20)
kelvin_class = NV20TCL;
if (!kelvin_class || dev->chipset >= 0x30) {
NOUVEAU_ERR("Unknown nv2x chipset: nv%02x\n", dev->chipset);
return NULL;
}
ret = nouveau_grobj_alloc(chan, 0xbeef0097, kelvin_class,
&screen->kelvin);
if (ret) {
NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
return FALSE;
}
BIND_RING(chan, screen->kelvin, 7);
/* 2D engine setup */
screen->eng2d = nv04_surface_2d_init(&screen->base);
screen->eng2d->buf = nv20_surface_buffer;
/* Notifier for sync purposes */
ret = nouveau_notifier_alloc(chan, 0xbeef0301, 1, &screen->sync);
if (ret) {
NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
nv20_screen_destroy(pscreen);
return NULL;
}
return pscreen;
}
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