/*
* 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 "pipe/p_inlines.h"
#include "util/u_memory.h"
#include "util/u_simple_screen.h"
#include "r300_context.h"
#include "r300_screen.h"
#include "r300_texture.h"
#include "r300_winsys.h"
/* Return the identifier behind whom the brave coders responsible for this
* amalgamation of code, sweat, and duct tape, routinely obscure their names.
*
* ...I should have just put "Corbin Simpson", but I'm not that cool.
*
* (Or egotistical. Yet.) */
static const char* r300_get_vendor(struct pipe_screen* pscreen)
{
return "X.Org R300 Project";
}
static const char* chip_families[] = {
"R300",
"R350",
"R360",
"RV350",
"RV370",
"RV380",
"R420",
"R423",
"R430",
"R480",
"R481",
"RV410",
"RS400",
"RC410",
"RS480",
"RS482",
"RS600",
"RS690",
"RS740",
"RV515",
"R520",
"RV530",
"R580",
"RV560",
"RV570"
};
static const char* r300_get_name(struct pipe_screen* pscreen)
{
struct r300_screen* r300screen = r300_screen(pscreen);
return chip_families[r300screen->caps->family];
}
static int r300_get_param(struct pipe_screen* pscreen, int param)
{
struct r300_screen* r300screen = r300_screen(pscreen);
switch (param) {
case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
/* XXX I'm told this goes up to 16 */
return 8;
case PIPE_CAP_NPOT_TEXTURES:
/* XXX enable now to get GL2.1 API,
* figure out later how to emulate this */
return 1;
case PIPE_CAP_TWO_SIDED_STENCIL:
if (r300screen->caps->is_r500) {
return 1;
} else {
return 0;
}
case PIPE_CAP_GLSL:
/* I'll be frank. This is a lie.
*
* We don't truly support GLSL on any of this driver's chipsets.
* To be fair, no chipset supports the full GLSL specification
* to the best of our knowledge, but some of the less esoteric
* features are still missing here.
*
* Rather than cripple ourselves intentionally, I'm going to set
* this flag, and as Gallium's interface continues to change, I
* hope that this single monolithic GLSL enable can slowly get
* split down into many different pieces and the state tracker
* will handle fallbacks transparently, like it should.
*
* ~ C.
*/
return 1;
case PIPE_CAP_ANISOTROPIC_FILTER:
return 1;
case PIPE_CAP_POINT_SPRITE:
return 1;
case PIPE_CAP_MAX_RENDER_TARGETS:
return 4;
case PIPE_CAP_OCCLUSION_QUERY:
return 1;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
return 1;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
if (r300screen->caps->is_r500) {
/* 13 == 4096 */
return 13;
} else {
/* 12 == 2048 */
return 12;
}
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
return 1;
case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
return 1;
case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
return 0;
case PIPE_CAP_TGSI_CONT_SUPPORTED:
return 0;
case PIPE_CAP_BLEND_EQUATION_SEPARATE:
return 1;
default:
debug_printf("r300: Implementation error: Bad param %d\n",
param);
return 0;
}
}
static float r300_get_paramf(struct pipe_screen* pscreen, int param)
{
struct r300_screen* r300screen = r300_screen(pscreen);
switch (param) {
case PIPE_CAP_MAX_LINE_WIDTH:
case PIPE_CAP_MAX_LINE_WIDTH_AA:
case PIPE_CAP_MAX_POINT_WIDTH:
case PIPE_CAP_MAX_POINT_WIDTH_AA:
/* The maximum dimensions of the colorbuffer are our practical
* rendering limits. 2048 pixels should be enough for anybody. */
if (r300screen->caps->is_r500) {
return 4096.0f;
} else {
return 2048.0f;
}
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 16.0f;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
return 16.0f;
default:
debug_printf("r300: Implementation error: Bad paramf %d\n",
param);
return 0.0f;
}
}
static boolean check_tex_format(enum pipe_format format, uint32_t usage,
boolean is_r500)
{
uint32_t retval = 0;
switch (format) {
/* Supported formats. */
/* Colorbuffer */
case PIPE_FORMAT_A4R4G4B4_UNORM:
case PIPE_FORMAT_R5G6B5_UNORM:
case PIPE_FORMAT_A1R5G5B5_UNORM:
retval = usage &
(PIPE_TEXTURE_USAGE_RENDER_TARGET |
PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
PIPE_TEXTURE_USAGE_PRIMARY);
break;
/* Texture */
case PIPE_FORMAT_A8R8G8B8_SRGB:
case PIPE_FORMAT_R8G8B8A8_SRGB:
case PIPE_FORMAT_DXT1_RGB:
case PIPE_FORMAT_DXT1_RGBA:
case PIPE_FORMAT_DXT3_RGBA:
case PIPE_FORMAT_DXT5_RGBA:
case PIPE_FORMAT_YCBCR:
case PIPE_FORMAT_L8_UNORM:
case PIPE_FORMAT_A8L8_UNORM:
retval = usage & PIPE_TEXTURE_USAGE_SAMPLER;
break;
/* Colorbuffer or texture */
case PIPE_FORMAT_A8R8G8B8_UNORM:
case PIPE_FORMAT_X8R8G8B8_UNORM:
case PIPE_FORMAT_R8G8B8A8_UNORM:
case PIPE_FORMAT_R8G8B8X8_UNORM:
case PIPE_FORMAT_I8_UNORM:
retval = usage &
(PIPE_TEXTURE_USAGE_RENDER_TARGET |
PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
PIPE_TEXTURE_USAGE_PRIMARY |
PIPE_TEXTURE_USAGE_SAMPLER);
break;
/* Z buffer or texture */
case PIPE_FORMAT_Z16_UNORM:
case PIPE_FORMAT_Z24X8_UNORM:
/* Z buffer with stencil or texture */
case PIPE_FORMAT_Z24S8_UNORM:
retval = usage &
(PIPE_TEXTURE_USAGE_DEPTH_STENCIL |
PIPE_TEXTURE_USAGE_SAMPLER);
break;
/* Definitely unsupported formats. */
/* Non-usable Z buffer/stencil formats. */
case PIPE_FORMAT_Z32_UNORM:
case PIPE_FORMAT_S8Z24_UNORM:
case PIPE_FORMAT_X8Z24_UNORM:
debug_printf("r300: Note: Got unsupported format: %s in %s\n",
pf_name(format), __FUNCTION__);
return FALSE;
/* XXX These don't even exist
case PIPE_FORMAT_A32R32G32B32:
case PIPE_FORMAT_A16R16G16B16: */
/* XXX What the deuce is UV88? (r3xx accel page 14)
debug_printf("r300: Warning: Got unimplemented format: %s in %s\n",
pf_name(format), __FUNCTION__);
return FALSE; */
/* XXX Supported yet unimplemented r5xx formats: */
/* XXX Again, what is UV1010 this time? (r5xx accel page 148) */
/* XXX Even more that don't exist
case PIPE_FORMAT_A10R10G10B10_UNORM:
case PIPE_FORMAT_A2R10G10B10_UNORM:
case PIPE_FORMAT_I10_UNORM:
debug_printf(
"r300: Warning: Got unimplemented r500 format: %s in %s\n",
pf_name(format), __FUNCTION__);
return FALSE; */
default:
/* Unknown format... */
debug_printf("r300: Warning: Got unknown format: %s in %s\n",
pf_name(format), __FUNCTION__);
break;
}
/* If usage was a mask that contained multiple bits, and not all of them
* are supported, this will catch that and return FALSE.
* e.g. usage = 2 | 4; retval = 4; (retval >= usage) == FALSE
*
* This also returns FALSE for any unknown formats.
*/
return (retval >= usage);
}
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)
{
switch (target) {
case PIPE_TEXTURE_1D: /* handle 1D textures as 2D ones */
case PIPE_TEXTURE_2D:
case PIPE_TEXTURE_3D:
case PIPE_TEXTURE_CUBE:
return check_tex_format(format, tex_usage,
r300_screen(pscreen)->caps->is_r500);
default:
debug_printf("r300: Fatal: This is not a format target: %d\n",
target);
assert(0);
break;
}
return FALSE;
}
static struct pipe_transfer*
r300_get_tex_transfer(struct pipe_screen *screen,
struct pipe_texture *texture,
unsigned face, unsigned level, unsigned zslice,
enum pipe_transfer_usage usage, unsigned x, unsigned y,
unsigned w, unsigned h)
{
struct r300_texture *tex = (struct r300_texture *)texture;
struct r300_transfer *trans;
unsigned offset;
offset = r300_texture_get_offset(tex, level, zslice, face); /* in bytes */
trans = CALLOC_STRUCT(r300_transfer);
if (trans) {
pipe_texture_reference(&trans->transfer.texture, texture);
trans->transfer.format = texture->format;
trans->transfer.x = x;
trans->transfer.y = y;
trans->transfer.width = w;
trans->transfer.height = h;
trans->transfer.block = texture->block;
trans->transfer.nblocksx = texture->nblocksx[level];
trans->transfer.nblocksy = texture->nblocksy[level];
trans->transfer.stride = r300_texture_get_stride(tex, level);
trans->transfer.usage = usage;
/* XXX not sure whether it's required to set these two,
the driver doesn't use them */
trans->transfer.zslice = zslice;
trans->transfer.face = face;
trans->offset = offset;
}
return &trans->transfer;
}
static void
r300_tex_transfer_destroy(struct pipe_transfer *trans)
{
pipe_texture_reference(&trans->texture, NULL);
FREE(trans);
}
static void* r300_transfer_map(struct pipe_screen* screen,
struct pipe_transfer* transfer)
{
struct r300_texture* tex = (struct r300_texture*)transfer->texture;
char* map;
map = pipe_buffer_map(screen, tex->buffer,
pipe_transfer_buffer_flags(transfer));
if (!map) {
return NULL;
}
return map + r300_transfer(transfer)->offset +
transfer->y / transfer->block.height * transfer->stride +
transfer->x / transfer->block.width * transfer->block.size;
}
static void r300_transfer_unmap(struct pipe_screen* screen,
struct pipe_transfer* transfer)
{
struct r300_texture* tex = (struct r300_texture*)transfer->texture;
pipe_buffer_unmap(screen, tex->buffer);
}
static void r300_destroy_screen(struct pipe_screen* pscreen)
{
struct r300_screen* r300screen = r300_screen(pscreen);
FREE(r300screen->caps);
FREE(r300screen);
}
struct pipe_screen* r300_create_screen(struct r300_winsys* r300_winsys)
{
struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen);
struct r300_capabilities* caps = CALLOC_STRUCT(r300_capabilities);
if (!r300screen || !caps)
return NULL;
caps->pci_id = r300_winsys->pci_id;
caps->num_frag_pipes = r300_winsys->gb_pipes;
caps->num_z_pipes = r300_winsys->z_pipes;
r300_parse_chipset(caps);
r300screen->caps = caps;
r300screen->screen.winsys = (struct pipe_winsys*)r300_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.get_tex_transfer = r300_get_tex_transfer;
r300screen->screen.tex_transfer_destroy = r300_tex_transfer_destroy;
r300screen->screen.transfer_map = r300_transfer_map;
r300screen->screen.transfer_unmap = r300_transfer_unmap;
r300_init_screen_texture_functions(&r300screen->screen);
u_simple_screen_init(&r300screen->screen);
return &r300screen->screen;
}