/**************************************************************************
*
* Copyright 2008 VMware, Inc.
* 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 VMWARE 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_math.h"
#include "util/u_cpu_detect.h"
#include "util/u_format.h"
#include "util/u_string.h"
#include "util/u_format_s3tc.h"
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "draw/draw_context.h"
#include "gallivm/lp_bld_type.h"
#include "os/os_misc.h"
#include "util/os_time.h"
#include "lp_texture.h"
#include "lp_fence.h"
#include "lp_jit.h"
#include "lp_screen.h"
#include "lp_context.h"
#include "lp_debug.h"
#include "lp_public.h"
#include "lp_limits.h"
#include "lp_rast.h"
#include "state_tracker/sw_winsys.h"
#ifdef DEBUG
int LP_DEBUG = 0;
static const struct debug_named_value lp_debug_flags[] = {
{ "pipe", DEBUG_PIPE, NULL },
{ "tgsi", DEBUG_TGSI, NULL },
{ "tex", DEBUG_TEX, NULL },
{ "setup", DEBUG_SETUP, NULL },
{ "rast", DEBUG_RAST, NULL },
{ "query", DEBUG_QUERY, NULL },
{ "screen", DEBUG_SCREEN, NULL },
{ "counters", DEBUG_COUNTERS, NULL },
{ "scene", DEBUG_SCENE, NULL },
{ "fence", DEBUG_FENCE, NULL },
{ "mem", DEBUG_MEM, NULL },
{ "fs", DEBUG_FS, NULL },
DEBUG_NAMED_VALUE_END
};
#endif
int LP_PERF = 0;
static const struct debug_named_value lp_perf_flags[] = {
{ "texmem", PERF_TEX_MEM, NULL },
{ "no_mipmap", PERF_NO_MIPMAPS, NULL },
{ "no_linear", PERF_NO_LINEAR, NULL },
{ "no_mip_linear", PERF_NO_MIP_LINEAR, NULL },
{ "no_tex", PERF_NO_TEX, NULL },
{ "no_blend", PERF_NO_BLEND, NULL },
{ "no_depth", PERF_NO_DEPTH, NULL },
{ "no_alphatest", PERF_NO_ALPHATEST, NULL },
DEBUG_NAMED_VALUE_END
};
static const char *
llvmpipe_get_vendor(struct pipe_screen *screen)
{
return "VMware, Inc.";
}
static const char *
llvmpipe_get_name(struct pipe_screen *screen)
{
static char buf[100];
util_snprintf(buf, sizeof(buf), "llvmpipe (LLVM %u.%u, %u bits)",
HAVE_LLVM >> 8, HAVE_LLVM & 0xff,
lp_native_vector_width );
return buf;
}
static int
llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
{
switch (param) {
case PIPE_CAP_NPOT_TEXTURES:
case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
return 1;
case PIPE_CAP_SM3:
return 1;
case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
return 1;
case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
return PIPE_MAX_SO_BUFFERS;
case PIPE_CAP_ANISOTROPIC_FILTER:
return 0;
case PIPE_CAP_POINT_SPRITE:
return 1;
case PIPE_CAP_MAX_RENDER_TARGETS:
return PIPE_MAX_COLOR_BUFS;
case PIPE_CAP_OCCLUSION_QUERY:
return 1;
case PIPE_CAP_QUERY_TIME_ELAPSED:
return 0;
case PIPE_CAP_QUERY_TIMESTAMP:
return 1;
case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
return 1;
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
return 1;
case PIPE_CAP_TEXTURE_SWIZZLE:
return 1;
case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
return 0;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
return LP_MAX_TEXTURE_2D_LEVELS;
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
return LP_MAX_TEXTURE_3D_LEVELS;
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
return LP_MAX_TEXTURE_CUBE_LEVELS;
case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
return LP_MAX_TEXTURE_ARRAY_LAYERS;
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_PIXEL_CENTER_INTEGER:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
return 1;
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
return 0;
case PIPE_CAP_PRIMITIVE_RESTART:
return 1;
case PIPE_CAP_DEPTH_CLIP_DISABLE:
return 1;
case PIPE_CAP_SHADER_STENCIL_EXPORT:
return 1;
case PIPE_CAP_TGSI_INSTANCEID:
case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
case PIPE_CAP_START_INSTANCE:
return 1;
case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
return 0;
case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
return 1;
case PIPE_CAP_SEAMLESS_CUBE_MAP:
case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
return 1;
/* this is a lie could support arbitrary large offsets */
case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
case PIPE_CAP_MIN_TEXEL_OFFSET:
return -32;
case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
case PIPE_CAP_MAX_TEXEL_OFFSET:
return 31;
case PIPE_CAP_CONDITIONAL_RENDER:
return 1;
case PIPE_CAP_TEXTURE_BARRIER:
return 0;
case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
return 16*4;
case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
return 1024;
case PIPE_CAP_MAX_VERTEX_STREAMS:
return 1;
case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
return 2048;
case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
return 1;
case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
return 0;
case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
case PIPE_CAP_VERTEX_COLOR_CLAMPED:
return 1;
case PIPE_CAP_GLSL_FEATURE_LEVEL:
return 330;
case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
return 0;
case PIPE_CAP_COMPUTE:
return 0;
case PIPE_CAP_USER_VERTEX_BUFFERS:
return 1;
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_TGSI_TEXCOORD:
return 0;
case PIPE_CAP_DRAW_INDIRECT:
return 1;
case PIPE_CAP_CUBE_MAP_ARRAY:
return 1;
case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
return 16;
case PIPE_CAP_TEXTURE_MULTISAMPLE:
return 0;
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
return 64;
case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
return 1;
case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
return 65536;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
return 1;
case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
return 0;
case PIPE_CAP_MAX_VIEWPORTS:
return PIPE_MAX_VIEWPORTS;
case PIPE_CAP_ENDIANNESS:
return PIPE_ENDIAN_NATIVE;
case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
return 1;
case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
return 1;
case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
return 4;
case PIPE_CAP_TEXTURE_GATHER_SM5:
case PIPE_CAP_SAMPLE_SHADING:
case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
return 0;
case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
return 1;
case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
case PIPE_CAP_TGSI_TEX_TXF_LZ:
return 0;
case PIPE_CAP_SAMPLER_VIEW_TARGET:
return 1;
case PIPE_CAP_FAKE_SW_MSAA:
return 1;
case PIPE_CAP_TEXTURE_QUERY_LOD:
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
case PIPE_CAP_DOUBLES:
case PIPE_CAP_INT64:
case PIPE_CAP_INT64_DIVMOD:
case PIPE_CAP_QUERY_SO_OVERFLOW:
return 1;
case PIPE_CAP_VENDOR_ID:
return 0xFFFFFFFF;
case PIPE_CAP_DEVICE_ID:
return 0xFFFFFFFF;
case PIPE_CAP_ACCELERATED:
return 0;
case PIPE_CAP_VIDEO_MEMORY: {
/* XXX: Do we want to return the full amount fo system memory ? */
uint64_t system_memory;
if (!os_get_total_physical_memory(&system_memory))
return 0;
if (sizeof(void *) == 4)
/* Cap to 2 GB on 32 bits system. We do this because llvmpipe does
* eat application memory, which is quite limited on 32 bits. App
* shouldn't expect too much available memory. */
system_memory = MIN2(system_memory, 2048 << 20);
return (int)(system_memory >> 20);
}
case PIPE_CAP_UMA:
return 0;
case PIPE_CAP_CLIP_HALFZ:
return 1;
case PIPE_CAP_VERTEXID_NOBASE:
return 0;
case PIPE_CAP_POLYGON_OFFSET_CLAMP:
case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
return 1;
case PIPE_CAP_CULL_DISTANCE:
return 1;
case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
return 1;
case PIPE_CAP_CLEAR_TEXTURE:
return 1;
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
case PIPE_CAP_DEPTH_BOUNDS_TEST:
case PIPE_CAP_TGSI_TXQS:
case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
case PIPE_CAP_SHAREABLE_SHADERS:
case PIPE_CAP_DRAW_PARAMETERS:
case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
case PIPE_CAP_MULTI_DRAW_INDIRECT:
case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_GENERATE_MIPMAP:
case PIPE_CAP_STRING_MARKER:
case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
case PIPE_CAP_QUERY_BUFFER_OBJECT:
case PIPE_CAP_QUERY_MEMORY_INFO:
case PIPE_CAP_PCI_GROUP:
case PIPE_CAP_PCI_BUS:
case PIPE_CAP_PCI_DEVICE:
case PIPE_CAP_PCI_FUNCTION:
case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
case PIPE_CAP_TGSI_VOTE:
case PIPE_CAP_MAX_WINDOW_RECTANGLES:
case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
case PIPE_CAP_NATIVE_FENCE_FD:
case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
case PIPE_CAP_TGSI_FS_FBFETCH:
case PIPE_CAP_TGSI_MUL_ZERO_WINS:
case PIPE_CAP_TGSI_CLOCK:
case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
case PIPE_CAP_TGSI_BALLOT:
case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
case PIPE_CAP_POST_DEPTH_COVERAGE:
case PIPE_CAP_BINDLESS_TEXTURE:
case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
case PIPE_CAP_MEMOBJ:
case PIPE_CAP_LOAD_CONSTBUF:
case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
case PIPE_CAP_TILE_RASTER_ORDER:
case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
case PIPE_CAP_CONTEXT_PRIORITY_MASK:
return 0;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAP %d query\n", param);
return 0;
}
static int
llvmpipe_get_shader_param(struct pipe_screen *screen,
enum pipe_shader_type shader,
enum pipe_shader_cap param)
{
switch(shader)
{
case PIPE_SHADER_FRAGMENT:
switch (param) {
default:
return gallivm_get_shader_param(param);
}
case PIPE_SHADER_VERTEX:
case PIPE_SHADER_GEOMETRY:
switch (param) {
case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
/* At this time, the draw module and llvmpipe driver only
* support vertex shader texture lookups when LLVM is enabled in
* the draw module.
*/
if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
return PIPE_MAX_SAMPLERS;
else
return 0;
case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
return PIPE_MAX_SHADER_SAMPLER_VIEWS;
else
return 0;
default:
return draw_get_shader_param(shader, param);
}
default:
return 0;
}
}
static float
llvmpipe_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; /* not actually signficant at this time */
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_CAP %d query\n", param);
return 0.0;
}
/**
* 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
llvmpipe_is_format_supported( struct pipe_screen *_screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned bind)
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
struct sw_winsys *winsys = screen->winsys;
const struct util_format_description *format_desc;
format_desc = util_format_description(format);
if (!format_desc)
return FALSE;
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 ||
target == PIPE_TEXTURE_CUBE_ARRAY);
if (sample_count > 1)
return FALSE;
if (bind & PIPE_BIND_RENDER_TARGET) {
if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) {
/* this is a lie actually other formats COULD exist where we would fail */
if (format_desc->nr_channels < 3)
return FALSE;
}
else if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB)
return FALSE;
if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN &&
format != PIPE_FORMAT_R11G11B10_FLOAT)
return FALSE;
assert(format_desc->block.width == 1);
assert(format_desc->block.height == 1);
if (format_desc->is_mixed)
return FALSE;
if (!format_desc->is_array && !format_desc->is_bitmask &&
format != PIPE_FORMAT_R11G11B10_FLOAT)
return FALSE;
}
if ((bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) &&
((bind & PIPE_BIND_DISPLAY_TARGET) == 0)) {
/* Disable all 3-channel formats, where channel size != 32 bits.
* In some cases we run into crashes (in generate_unswizzled_blend()),
* for 3-channel RGB16 variants, there was an apparent LLVM bug.
* In any case, disabling the shallower 3-channel formats avoids a
* number of issues with GL_ARB_copy_image support.
*/
if (format_desc->is_array &&
format_desc->nr_channels == 3 &&
format_desc->block.bits != 96) {
return FALSE;
}
}
if (bind & PIPE_BIND_DISPLAY_TARGET) {
if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
return FALSE;
}
if (bind & PIPE_BIND_DEPTH_STENCIL) {
if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
return FALSE;
if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
return FALSE;
/* TODO: Support stencil-only formats */
if (format_desc->swizzle[0] == PIPE_SWIZZLE_NONE) {
return FALSE;
}
}
if (format_desc->layout == UTIL_FORMAT_LAYOUT_BPTC ||
format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC) {
/* Software decoding is not hooked up. */
return FALSE;
}
if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
format != PIPE_FORMAT_ETC1_RGB8)
return FALSE;
/*
* Everything can be supported by u_format
* (those without fetch_rgba_float might be not but shouldn't hit that)
*/
return TRUE;
}
static void
llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
struct pipe_resource *resource,
unsigned level, unsigned layer,
void *context_private,
struct pipe_box *sub_box)
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
struct sw_winsys *winsys = screen->winsys;
struct llvmpipe_resource *texture = llvmpipe_resource(resource);
assert(texture->dt);
if (texture->dt)
winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
}
static void
llvmpipe_destroy_screen( struct pipe_screen *_screen )
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
struct sw_winsys *winsys = screen->winsys;
if (screen->rast)
lp_rast_destroy(screen->rast);
lp_jit_screen_cleanup(screen);
if(winsys->destroy)
winsys->destroy(winsys);
mtx_destroy(&screen->rast_mutex);
FREE(screen);
}
/**
* Fence reference counting.
*/
static void
llvmpipe_fence_reference(struct pipe_screen *screen,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *fence)
{
struct lp_fence **old = (struct lp_fence **) ptr;
struct lp_fence *f = (struct lp_fence *) fence;
lp_fence_reference(old, f);
}
/**
* Wait for the fence to finish.
*/
static boolean
llvmpipe_fence_finish(struct pipe_screen *screen,
struct pipe_context *ctx,
struct pipe_fence_handle *fence_handle,
uint64_t timeout)
{
struct lp_fence *f = (struct lp_fence *) fence_handle;
if (!timeout)
return lp_fence_signalled(f);
lp_fence_wait(f);
return TRUE;
}
static uint64_t
llvmpipe_get_timestamp(struct pipe_screen *_screen)
{
return os_time_get_nano();
}
/**
* Create a new pipe_screen object
* Note: we're not presently subclassing pipe_screen (no llvmpipe_screen).
*/
struct pipe_screen *
llvmpipe_create_screen(struct sw_winsys *winsys)
{
struct llvmpipe_screen *screen;
util_cpu_detect();
#ifdef DEBUG
LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 );
#endif
LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 );
screen = CALLOC_STRUCT(llvmpipe_screen);
if (!screen)
return NULL;
if (!lp_jit_screen_init(screen)) {
FREE(screen);
return NULL;
}
screen->winsys = winsys;
screen->base.destroy = llvmpipe_destroy_screen;
screen->base.get_name = llvmpipe_get_name;
screen->base.get_vendor = llvmpipe_get_vendor;
screen->base.get_device_vendor = llvmpipe_get_vendor; // TODO should be the CPU vendor
screen->base.get_param = llvmpipe_get_param;
screen->base.get_shader_param = llvmpipe_get_shader_param;
screen->base.get_paramf = llvmpipe_get_paramf;
screen->base.is_format_supported = llvmpipe_is_format_supported;
screen->base.context_create = llvmpipe_create_context;
screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer;
screen->base.fence_reference = llvmpipe_fence_reference;
screen->base.fence_finish = llvmpipe_fence_finish;
screen->base.get_timestamp = llvmpipe_get_timestamp;
llvmpipe_init_screen_resource_funcs(&screen->base);
screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0;
#ifdef PIPE_SUBSYSTEM_EMBEDDED
screen->num_threads = 0;
#endif
screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);
screen->rast = lp_rast_create(screen->num_threads);
if (!screen->rast) {
lp_jit_screen_cleanup(screen);
FREE(screen);
return NULL;
}
(void) mtx_init(&screen->rast_mutex, mtx_plain);
return &screen->base;
}