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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* 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
* on 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
* THE AUTHOR(S) AND/OR THEIR 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 "r300_screen.h"
static const char* r300_get_vendor(struct pipe_screen* pscreen) {
return "X.Org R300 Project";
}
static const char* r300_get_name(struct pipe_screen* pscreen) {
/* XXX lazy */
return "unknown";
}
static int r300_get_param(struct pipe_screen* pscreen, int param) {
struct r300_screen* r300screen = r300_screen(pscreen);
switch (param) {
/* XXX cases marked "IN THEORY" are possible on the hardware,
* but haven't been implemented yet. */
case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
/* XXX I'm told this goes up to 16 */
return 8;
case PIPE_CAP_NPOT_TEXTURES:
/* IN THEORY */
return 0;
case PIPE_CAP_S3TC:
/* IN THEORY */
return 0;
case PIPE_CAP_TWO_SIDED_STENCIL:
/* IN THEORY */
/* if (r300screen->is_r500) {
* return 1;
* } else {
* return 0;
* } */
return 0;
case PIPE_CAP_ANISOTROPIC_FILTER:
/* IN THEORY */
return 0;
case PIPE_CAP_POINT_SPRITE:
/* IN THEORY */
return 0;
case PIPE_CAP_OCCLUSION_QUERY:
/* IN THEORY */
return 0;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
/* IN THEORY */
return 0;
case PIPE_CAP_GLSL:
/* IN THEORY */
return 0;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
/* 12 == 2048x2048 */
if (r300screen->is_r500) {
/* R500 can do 4096x4096 */
return 13;
} else {
return 12;
}
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
/* XXX educated guess */
return 8;
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
/* XXX educated guess */
return 11;
case PIPE_CAP_MAX_RENDER_TARGETS:
/* XXX 4 eventually */
return 1;
default:
return 0;
}
}
static float r300_get_paramf(struct pipe_screen* pscreen, int param) {
switch (param) {
case PIPE_CAP_MAX_LINE_WIDTH:
case PIPE_CAP_MAX_LINE_WIDTH_AA:
/* XXX look this up, lazy ass! */
return 0.0;
case PIPE_CAP_MAX_POINT_WIDTH:
case PIPE_CAP_MAX_POINT_WIDTH_AA:
/* XXX see above */
return 255.0;
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 16.0;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
return 16.0;
default:
return 0.0;
}
}
static boolean r300_is_format_supported(struct pipe_screen* pscreen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned tex_usage,
unsigned geom_flags)
{
return FALSE;
}
static void* r300_surface_map(struct pipe_screen* screen,
struct pipe_surface* surface,
unsigned flags)
{
char* map = pipe_buffer_map(screen, surface->buffer, flags);
if (!map) {
return NULL;
}
return map + surface->offset;
}
static void r300_surface_unmap(struct pipe_screen* screen,
struct pipe_surface* surface)
{
pipe_buffer_unmap(screen, surface->buffer);
}
static void r300_destroy_screen(struct pipe_screen* pscreen) {
FREE(pscreen);
}
struct pipe_screen* r300_create_screen(struct pipe_winsys* winsys, uint pci_id) {
struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen);
if (!r300screen)
return NULL;
/* XXX break this into its own function?
switch (pci_id) {
default:
debug_printf("%s: unknown PCI ID 0x%x, cannot create screen!\n",
__FUNCTION__, pci_id);
return NULL;
} */
r300screen->pci_id = pci_id;
r300screen->screen.winsys = winsys;
r300screen->screen.destroy = r300_destroy_screen;
r300screen->screen.get_name = r300_get_name;
r300screen->screen.get_vendor = r300_get_vendor;
r300screen->screen.get_param = r300_get_param;
r300screen->screen.get_paramf = r300_get_paramf;
r300screen->screen.is_format_supported = r300_is_format_supported;
r300screen->screen.surface_map = r300_surface_map;
r300screen->screen.surface_unmap = r300_surface_unmap;
return &r300screen->screen;
}
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