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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
* Copyright 2010 Marek Olšák <maraeo@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 "util/u_format.h"
#include "util/u_format_s3tc.h"
#include "util/u_memory.h"
#include "r300_context.h"
#include "r300_texture.h"
#include "r300_screen_buffer.h"
#include "r300_state_inlines.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, enum pipe_cap param)
{
struct r300_screen* r300screen = r300_screen(pscreen);
boolean is_r400 = r300screen->caps.is_r400;
boolean is_r500 = r300screen->caps.is_r500;
/* XXX extended shader capabilities of r400 unimplemented */
is_r400 = FALSE;
switch (param) {
/* Supported features (boolean caps). */
case PIPE_CAP_NPOT_TEXTURES:
case PIPE_CAP_TWO_SIDED_STENCIL:
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.
*/
case PIPE_CAP_ANISOTROPIC_FILTER:
case PIPE_CAP_POINT_SPRITE:
case PIPE_CAP_OCCLUSION_QUERY:
case PIPE_CAP_TEXTURE_SHADOW_MAP:
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
case PIPE_CAP_BLEND_EQUATION_SEPARATE:
return 1;
/* Unsupported features (boolean caps). */
case PIPE_CAP_TIMER_QUERY:
case PIPE_CAP_DUAL_SOURCE_BLEND:
case PIPE_CAP_TGSI_CONT_SUPPORTED:
case PIPE_CAP_INDEP_BLEND_ENABLE:
case PIPE_CAP_INDEP_BLEND_FUNC:
return 0;
/* Texturing. */
case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
case PIPE_CAP_MAX_COMBINED_SAMPLERS:
return r300screen->caps.num_tex_units;
case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
return 0;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
/* 13 == 4096, 12 == 2048 */
return is_r500 ? 13 : 12;
/* Render targets. */
case PIPE_CAP_MAX_RENDER_TARGETS:
return 4;
/* General shader limits and features. */
case PIPE_CAP_SM3:
return is_r500 ? 1 : 0;
case PIPE_CAP_MAX_CONST_BUFFERS:
return 1;
case PIPE_CAP_MAX_CONST_BUFFER_SIZE:
return 256;
/* Fragment coordinate conventions. */
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;
/* Fragment shader limits. */
case PIPE_CAP_MAX_FS_INSTRUCTIONS:
return is_r500 || is_r400 ? 512 : 96;
case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS:
return is_r500 || is_r400 ? 512 : 64;
case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS:
return is_r500 || is_r400 ? 512 : 32;
case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS:
return is_r500 ? 511 : 4;
case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH:
return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
case PIPE_CAP_MAX_FS_INPUTS:
/* 2 colors + 8 texcoords are always supported
* (minus fog and wpos).
*
* R500 has the ability to turn 3rd and 4th color into
* additional texcoords but there is no two-sided color
* selection then. However the facing bit can be used instead. */
return 10;
case PIPE_CAP_MAX_FS_CONSTS:
return is_r500 ? 256 : 32;
case PIPE_CAP_MAX_FS_TEMPS:
return is_r500 ? 128 : is_r400 ? 64 : 32;
case PIPE_CAP_MAX_FS_ADDRS:
return 0;
case PIPE_CAP_MAX_FS_PREDS:
return is_r500 ? 1 : 0;
/* Vertex shader limits. */
case PIPE_CAP_MAX_VS_INSTRUCTIONS:
case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS:
return is_r500 ? 1024 : 256;
case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS:
case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS:
return 0;
case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH:
return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
case PIPE_CAP_MAX_VS_INPUTS:
return 16;
case PIPE_CAP_MAX_VS_CONSTS:
return 256;
case PIPE_CAP_MAX_VS_TEMPS:
return 32;
case PIPE_CAP_MAX_VS_ADDRS:
return 1; /* XXX guessed */
case PIPE_CAP_MAX_VS_PREDS:
return is_r500 ? 4 : 0; /* XXX guessed. */
default:
fprintf(stderr, "r300: Implementation error: Bad param %d\n",
param);
return 0;
}
}
static float r300_get_paramf(struct pipe_screen* pscreen, enum pipe_cap 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 if (r300screen->caps.is_r400) {
return 4021.0f;
} else {
return 2560.0f;
}
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 16.0f;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
return 16.0f;
default:
fprintf(stderr, "r300: Implementation error: Bad paramf %d\n",
param);
return 0.0f;
}
}
static boolean r300_is_format_supported(struct pipe_screen* screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned usage,
unsigned geom_flags)
{
uint32_t retval = 0;
boolean is_r500 = r300_screen(screen)->caps.is_r500;
boolean is_r400 = r300_screen(screen)->caps.is_r400;
boolean is_rv350 = r300_screen(screen)->caps.is_rv350;
boolean is_z24 = format == PIPE_FORMAT_X8Z24_UNORM ||
format == PIPE_FORMAT_S8_USCALED_Z24_UNORM;
boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
format == PIPE_FORMAT_R10G10B10X2_SNORM ||
format == PIPE_FORMAT_B10G10R10A2_UNORM ||
format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
format == PIPE_FORMAT_RGTC1_SNORM;
boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
format == PIPE_FORMAT_RGTC2_SNORM;
boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
format == PIPE_FORMAT_R16G16_FLOAT ||
format == PIPE_FORMAT_R16G16B16_FLOAT ||
format == PIPE_FORMAT_R16G16B16A16_FLOAT;
if (target >= PIPE_MAX_TEXTURE_TYPES) {
fprintf(stderr, "r300: Implementation error: Received bogus texture "
"target %d in %s\n", target, __FUNCTION__);
return FALSE;
}
if (sample_count > 1)
return FALSE;
/* Check sampler format support. */
if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
/* Z24 cannot be sampled from on non-r5xx. */
(is_r500 || !is_z24) &&
/* ATI1N is r5xx-only. */
(is_r500 || !is_ati1n) &&
/* ATI2N is supported on r4xx-r5xx. */
(is_r400 || is_r500 || !is_ati2n) &&
r300_is_sampler_format_supported(format)) {
retval |= PIPE_BIND_SAMPLER_VIEW;
}
/* Check colorbuffer format support. */
if ((usage & (PIPE_BIND_RENDER_TARGET |
PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED)) &&
/* 2101010 cannot be rendered to on non-r5xx. */
(is_r500 || !is_color2101010) &&
r300_is_colorbuffer_format_supported(format)) {
retval |= usage &
(PIPE_BIND_RENDER_TARGET |
PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED);
}
/* Check depth-stencil format support. */
if (usage & PIPE_BIND_DEPTH_STENCIL &&
r300_is_zs_format_supported(format)) {
retval |= PIPE_BIND_DEPTH_STENCIL;
}
/* Check vertex buffer format support. */
if (usage & PIPE_BIND_VERTEX_BUFFER &&
/* Half float is supported on >= RV350. */
(is_rv350 || !is_half_float) &&
r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
retval |= PIPE_BIND_VERTEX_BUFFER;
}
return retval == usage;
}
static void r300_destroy_screen(struct pipe_screen* pscreen)
{
struct r300_screen* r300screen = r300_screen(pscreen);
struct r300_winsys_screen *rws = r300_winsys_screen(pscreen);
if (rws)
rws->destroy(rws);
FREE(r300screen);
}
static void r300_fence_reference(struct pipe_screen *screen,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *fence)
{
struct r300_fence **oldf = (struct r300_fence**)ptr;
struct r300_fence *newf = (struct r300_fence*)fence;
if (pipe_reference(&(*oldf)->reference, &newf->reference))
FREE(*oldf);
*ptr = fence;
}
static int r300_fence_signalled(struct pipe_screen *screen,
struct pipe_fence_handle *fence,
unsigned flags)
{
struct r300_fence *rfence = (struct r300_fence*)fence;
return rfence->signalled ? 0 : 1; /* 0 == success */
}
static int r300_fence_finish(struct pipe_screen *screen,
struct pipe_fence_handle *fence,
unsigned flags)
{
struct r300_fence *rfence = (struct r300_fence*)fence;
r300_finish(rfence->ctx);
rfence->signalled = TRUE;
return 0; /* 0 == success */
}
struct pipe_screen* r300_create_screen(struct r300_winsys_screen *rws)
{
struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
if (!r300screen) {
FREE(r300screen);
return NULL;
}
r300screen->caps.pci_id = rws->get_value(rws, R300_VID_PCI_ID);
r300screen->caps.num_frag_pipes = rws->get_value(rws, R300_VID_GB_PIPES);
r300screen->caps.num_z_pipes = rws->get_value(rws, R300_VID_Z_PIPES);
r300_init_debug(r300screen);
r300_parse_chipset(&r300screen->caps);
r300screen->rws = rws;
r300screen->screen.winsys = (struct pipe_winsys*)rws;
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.context_create = r300_create_context;
r300screen->screen.fence_reference = r300_fence_reference;
r300screen->screen.fence_signalled = r300_fence_signalled;
r300screen->screen.fence_finish = r300_fence_finish;
r300_init_screen_resource_functions(r300screen);
util_format_s3tc_init();
return &r300screen->screen;
}
struct r300_winsys_screen *
r300_winsys_screen(struct pipe_screen *screen)
{
return r300_screen(screen)->rws;
}
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