/**************************************************************************
*
* 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_format.h"
#include "util/u_format_s3tc.h"
#include "util/u_video.h"
#include "os/os_time.h"
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "draw/draw_context.h"
#include "vl/vl_decoder.h"
#include "vl/vl_video_buffer.h"
#include "state_tracker/sw_winsys.h"
#include "tgsi/tgsi_exec.h"
#include "sp_texture.h"
#include "sp_screen.h"
#include "sp_context.h"
#include "sp_fence.h"
#include "sp_public.h"
DEBUG_GET_ONCE_BOOL_OPTION(use_llvm, "SOFTPIPE_USE_LLVM", FALSE)
static const char *
softpipe_get_vendor(struct pipe_screen *screen)
{
return "VMware, Inc.";
}
static const char *
softpipe_get_name(struct pipe_screen *screen)
{
return "softpipe";
}
static int
softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
{
switch (param) {
case PIPE_CAP_MAX_COMBINED_SAMPLERS:
return 2 * PIPE_MAX_SAMPLERS; /* VS + FS */
case PIPE_CAP_NPOT_TEXTURES:
return 1;
case PIPE_CAP_TWO_SIDED_STENCIL:
return 1;
case PIPE_CAP_SM3:
return 1;
case PIPE_CAP_ANISOTROPIC_FILTER:
return 1;
case PIPE_CAP_POINT_SPRITE:
return 1;
case PIPE_CAP_MAX_RENDER_TARGETS:
return PIPE_MAX_COLOR_BUFS;
case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
return 1;
case PIPE_CAP_OCCLUSION_QUERY:
return 1;
case PIPE_CAP_TIMER_QUERY:
return 1;
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
return 1;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
return 1;
case PIPE_CAP_TEXTURE_SWIZZLE:
return 1;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
return SP_MAX_TEXTURE_2D_LEVELS;
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
return SP_MAX_TEXTURE_3D_LEVELS;
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
return SP_MAX_TEXTURE_CUBE_LEVELS;
case PIPE_CAP_BLEND_EQUATION_SEPARATE:
return 1;
case PIPE_CAP_INDEP_BLEND_ENABLE:
return 1;
case PIPE_CAP_INDEP_BLEND_FUNC:
return 1;
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
return 1;
case PIPE_CAP_DEPTH_CLIP_DISABLE:
return 0;
case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
return PIPE_MAX_SO_BUFFERS;
case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
return 16*4;
case PIPE_CAP_PRIMITIVE_RESTART:
return 1;
case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
return 0;
case PIPE_CAP_SHADER_STENCIL_EXPORT:
return 1;
case PIPE_CAP_TGSI_INSTANCEID:
case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
return 1;
case PIPE_CAP_SEAMLESS_CUBE_MAP:
case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
return 0;
case PIPE_CAP_SCALED_RESOLVE:
return 0;
case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
return 256; /* for GL3 */
case PIPE_CAP_MIN_TEXEL_OFFSET:
return -8;
case PIPE_CAP_MAX_TEXEL_OFFSET:
return 7;
case PIPE_CAP_CONDITIONAL_RENDER:
return 1;
case PIPE_CAP_TEXTURE_BARRIER:
return 0;
case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: /* draw module */
case PIPE_CAP_VERTEX_COLOR_CLAMPED: /* draw module */
return 1;
case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
return 0;
case PIPE_CAP_GLSL_FEATURE_LEVEL:
return 130;
case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
return 0;
case PIPE_CAP_COMPUTE:
return 0;
case PIPE_CAP_USER_VERTEX_BUFFERS:
case PIPE_CAP_USER_INDEX_BUFFERS:
case PIPE_CAP_USER_CONSTANT_BUFFERS:
return 1;
case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
return 16;
case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
case PIPE_CAP_START_INSTANCE:
return 0;
case PIPE_CAP_QUERY_TIMESTAMP:
return 1;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAP %d query\n", param);
return 0;
}
static int
softpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
{
struct softpipe_screen *sp_screen = softpipe_screen(screen);
switch(shader)
{
case PIPE_SHADER_FRAGMENT:
return tgsi_exec_get_shader_param(param);
case PIPE_SHADER_VERTEX:
case PIPE_SHADER_GEOMETRY:
switch (param) {
case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
if (sp_screen->use_llvm)
/* Softpipe doesn't yet know how to tell draw/llvm about textures */
return 0;
else
return PIPE_MAX_SAMPLERS;
default:
if (sp_screen->use_llvm)
return draw_get_shader_param(shader, param);
else
return draw_get_shader_param_no_llvm(shader, param);
}
default:
return 0;
}
}
static float
softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
{
switch (param) {
case PIPE_CAPF_MAX_LINE_WIDTH:
/* fall-through */
case PIPE_CAPF_MAX_LINE_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAPF_MAX_POINT_WIDTH:
/* fall-through */
case PIPE_CAPF_MAX_POINT_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
return 16.0;
case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
return 16.0; /* arbitrary */
case PIPE_CAPF_GUARD_BAND_LEFT:
case PIPE_CAPF_GUARD_BAND_TOP:
case PIPE_CAPF_GUARD_BAND_RIGHT:
case PIPE_CAPF_GUARD_BAND_BOTTOM:
return 0.0;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAPF %d query\n", param);
return 0.0;
}
static int
softpipe_get_video_param(struct pipe_screen *screen,
enum pipe_video_profile profile,
enum pipe_video_cap param)
{
switch (param) {
case PIPE_VIDEO_CAP_SUPPORTED:
return vl_profile_supported(screen, profile);
case PIPE_VIDEO_CAP_NPOT_TEXTURES:
return 0;
case PIPE_VIDEO_CAP_MAX_WIDTH:
case PIPE_VIDEO_CAP_MAX_HEIGHT:
return vl_video_buffer_max_size(screen);
case PIPE_VIDEO_CAP_PREFERED_FORMAT:
return PIPE_FORMAT_NV12;
case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
return false;
case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
return false;
case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
return true;
default:
return 0;
}
}
/**
* Query format support for creating a texture, drawing surface, etc.
* \param format the format to test
* \param type one of PIPE_TEXTURE, PIPE_SURFACE
*/
static boolean
softpipe_is_format_supported( struct pipe_screen *screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned bind)
{
struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
const struct util_format_description *format_desc;
assert(target == PIPE_BUFFER ||
target == PIPE_TEXTURE_1D ||
target == PIPE_TEXTURE_1D_ARRAY ||
target == PIPE_TEXTURE_2D ||
target == PIPE_TEXTURE_2D_ARRAY ||
target == PIPE_TEXTURE_RECT ||
target == PIPE_TEXTURE_3D ||
target == PIPE_TEXTURE_CUBE);
format_desc = util_format_description(format);
if (!format_desc)
return FALSE;
if (sample_count > 1)
return FALSE;
if (bind & (PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED)) {
if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
return FALSE;
}
if (bind & PIPE_BIND_RENDER_TARGET) {
if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
return FALSE;
/*
* Although possible, it is unnatural to render into compressed or YUV
* surfaces. So disable these here to avoid going into weird paths
* inside the state trackers.
*/
if (format_desc->block.width != 1 ||
format_desc->block.height != 1)
return FALSE;
}
if (bind & PIPE_BIND_DEPTH_STENCIL) {
if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
return FALSE;
}
/*
* All other operations (sampling, transfer, etc).
*/
if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
return util_format_s3tc_enabled;
}
/*
* Everything else should be supported by u_format.
*/
return TRUE;
}
static void
softpipe_destroy_screen( struct pipe_screen *screen )
{
struct softpipe_screen *sp_screen = softpipe_screen(screen);
struct sw_winsys *winsys = sp_screen->winsys;
if(winsys->destroy)
winsys->destroy(winsys);
FREE(screen);
}
/* This is often overriden by the co-state tracker.
*/
static void
softpipe_flush_frontbuffer(struct pipe_screen *_screen,
struct pipe_resource *resource,
unsigned level, unsigned layer,
void *context_private)
{
struct softpipe_screen *screen = softpipe_screen(_screen);
struct sw_winsys *winsys = screen->winsys;
struct softpipe_resource *texture = softpipe_resource(resource);
assert(texture->dt);
if (texture->dt)
winsys->displaytarget_display(winsys, texture->dt, context_private);
}
static uint64_t
softpipe_get_timestamp(struct pipe_screen *_screen)
{
return os_time_get()*1000;
}
/**
* Create a new pipe_screen object
* Note: we're not presently subclassing pipe_screen (no softpipe_screen).
*/
struct pipe_screen *
softpipe_create_screen(struct sw_winsys *winsys)
{
struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen);
if (!screen)
return NULL;
screen->winsys = winsys;
screen->base.destroy = softpipe_destroy_screen;
screen->base.get_name = softpipe_get_name;
screen->base.get_vendor = softpipe_get_vendor;
screen->base.get_param = softpipe_get_param;
screen->base.get_shader_param = softpipe_get_shader_param;
screen->base.get_paramf = softpipe_get_paramf;
screen->base.get_video_param = softpipe_get_video_param;
screen->base.get_timestamp = softpipe_get_timestamp;
screen->base.is_format_supported = softpipe_is_format_supported;
screen->base.is_video_format_supported = vl_video_buffer_is_format_supported;
screen->base.context_create = softpipe_create_context;
screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
screen->use_llvm = debug_get_option_use_llvm();
util_format_s3tc_init();
softpipe_init_screen_texture_funcs(&screen->base);
softpipe_init_screen_fence_funcs(&screen->base);
return &screen->base;
}