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mesa/src/gallium/drivers/softpipe/sp_screen.c
Qiang Yu 07a3a54d37 all: rename PIPE_SHADER_TYPES to MESA_SHADER_STAGES 
Use command:
  find . -type f -not -path '*/.git/*' -exec sed -i 's/\bPIPE_SHADER_TYPES\b/MESA_SHADER_STAGES/g' {} +

Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Yonggang Luo <luoyonggang@gmail.com>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36569>
2025-08-06 10:28:39 +08:00

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/**************************************************************************
*
* 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 "compiler/nir/nir.h"
#include "util/u_helpers.h"
#include "util/u_memory.h"
#include "util/format/u_format.h"
#include "util/format/u_format_s3tc.h"
#include "util/u_screen.h"
#include "util/u_video.h"
#include "util/os_misc.h"
#include "util/os_time.h"
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "draw/draw_context.h"
#include "frontend/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"
static const struct debug_named_value sp_debug_options[] = {
{"vs", SP_DBG_VS, "dump vertex shader assembly to stderr"},
{"gs", SP_DBG_GS, "dump geometry shader assembly to stderr"},
{"fs", SP_DBG_FS, "dump fragment shader assembly to stderr"},
{"cs", SP_DBG_CS, "dump compute shader assembly to stderr"},
{"no_rast", SP_DBG_NO_RAST, "no-ops rasterization, for profiling purposes"},
{"use_llvm", SP_DBG_USE_LLVM, "Use LLVM if available for shaders"},
DEBUG_NAMED_VALUE_END
};
int sp_debug;
DEBUG_GET_ONCE_FLAGS_OPTION(sp_debug, "SOFTPIPE_DEBUG", sp_debug_options, 0)
static const char *
softpipe_get_vendor(struct pipe_screen *screen)
{
return "Mesa";
}
static const char *
softpipe_get_name(struct pipe_screen *screen)
{
return "softpipe";
}
static const nir_shader_compiler_options sp_compiler_options = {
.fdot_replicates = true,
.fuse_ffma32 = true,
.fuse_ffma64 = true,
.lower_extract_byte = true,
.lower_extract_word = true,
.lower_insert_byte = true,
.lower_insert_word = true,
.lower_fdph = true,
.lower_flrp64 = true,
.lower_fmod = true,
.lower_uniforms_to_ubo = true,
.lower_vector_cmp = true,
.lower_int64_options = nir_lower_imul_2x32_64,
.max_unroll_iterations = 32,
/* TGSI doesn't have a semantic for local or global index, just local and
* workgroup id.
*/
.lower_cs_local_index_to_id = true,
.support_indirect_inputs = (uint8_t)BITFIELD_MASK(MESA_SHADER_STAGES),
.support_indirect_outputs = (uint8_t)BITFIELD_MASK(MESA_SHADER_STAGES),
};
/**
* 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 bool
softpipe_is_format_supported( struct pipe_screen *screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned storage_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 ||
target == PIPE_TEXTURE_CUBE_ARRAY);
if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
return false;
format_desc = util_format_description(format);
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 gallium frontends.
*/
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;
}
if (format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC ||
format_desc->layout == UTIL_FORMAT_LAYOUT_ATC) {
/* Software decoding is not hooked up. */
return false;
}
if ((bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) &&
((bind & PIPE_BIND_DISPLAY_TARGET) == 0) &&
target != PIPE_BUFFER) {
const struct util_format_description *desc =
util_format_description(format);
if (desc->nr_channels == 3 && desc->is_array) {
/* Don't support any 3-component formats for rendering/texturing
* since we don't support the corresponding 8-bit 3 channel UNORM
* formats. This allows us to support GL_ARB_copy_image between
* GL_RGB8 and GL_RGB8UI, for example. Otherwise, we may be asked to
* do a resource copy between PIPE_FORMAT_R8G8B8_UINT and
* PIPE_FORMAT_R8G8B8X8_UNORM, for example, which will not work
* (different bpp).
*/
return false;
}
}
if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
format != PIPE_FORMAT_ETC1_RGB8)
return false;
/*
* All other operations (sampling, transfer, etc).
*/
/*
* Everything else should be supported by u_format.
*/
return true;
}
static void
softpipe_init_shader_caps(struct softpipe_screen *sp_screen)
{
for (unsigned i = 0; i <= MESA_SHADER_COMPUTE; i++) {
struct pipe_shader_caps *caps =
(struct pipe_shader_caps *)&sp_screen->base.shader_caps[i];
switch(i) {
case MESA_SHADER_VERTEX:
case MESA_SHADER_GEOMETRY:
if (sp_screen->use_llvm) {
draw_init_shader_caps(caps);
break;
}
FALLTHROUGH;
case MESA_SHADER_FRAGMENT:
case MESA_SHADER_COMPUTE:
tgsi_exec_init_shader_caps(caps);
break;
default:
continue;
}
caps->supported_irs = (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_TGSI);
}
}
static void
softpipe_init_compute_caps(struct softpipe_screen *sp_screen)
{
struct pipe_compute_caps *caps =
(struct pipe_compute_caps *)&sp_screen->base.compute_caps;
caps->max_grid_size[0] =
caps->max_grid_size[1] =
caps->max_grid_size[2] = 65535;
caps->max_block_size[0] =
caps->max_block_size[1] =
caps->max_block_size[2] = 1024;
caps->max_threads_per_block = 1024;
caps->max_local_size = 32768;
}
static void
softpipe_init_screen_caps(struct softpipe_screen *sp_screen)
{
struct pipe_caps *caps = (struct pipe_caps *)&sp_screen->base.caps;
u_init_pipe_screen_caps(&sp_screen->base, 0);
caps->npot_textures = true;
caps->mixed_framebuffer_sizes = true;
caps->mixed_color_depth_bits = true;
caps->fragment_shader_texture_lod = true;
caps->fragment_shader_derivatives = true;
caps->anisotropic_filter = true;
caps->max_render_targets = PIPE_MAX_COLOR_BUFS;
caps->max_dual_source_render_targets = 1;
caps->occlusion_query = true;
caps->query_time_elapsed = true;
caps->query_pipeline_statistics = true;
caps->texture_mirror_clamp = true;
caps->texture_mirror_clamp_to_edge = true;
caps->texture_swizzle = true;
caps->max_texture_2d_size = 1 << (SP_MAX_TEXTURE_2D_LEVELS - 1);
caps->max_texture_3d_levels = SP_MAX_TEXTURE_3D_LEVELS;
caps->max_texture_cube_levels = SP_MAX_TEXTURE_CUBE_LEVELS;
caps->blend_equation_separate = true;
caps->indep_blend_enable = true;
caps->indep_blend_func = true;
caps->fs_coord_origin_upper_left = true;
caps->fs_coord_origin_lower_left = true;
caps->fs_coord_pixel_center_half_integer = true;
caps->fs_coord_pixel_center_integer = true;
caps->depth_clip_disable = true;
caps->depth_bounds_test = true;
caps->max_stream_output_buffers = PIPE_MAX_SO_BUFFERS;
caps->max_stream_output_separate_components =
caps->max_stream_output_interleaved_components = 16*4;
caps->max_geometry_output_vertices =
caps->max_geometry_total_output_components = 1024;
caps->max_vertex_streams = sp_screen->use_llvm ? 1 : PIPE_MAX_VERTEX_STREAMS;
caps->max_vertex_attrib_stride = 2048;
caps->primitive_restart = true;
caps->primitive_restart_fixed_index = true;
caps->shader_stencil_export = true;
caps->image_atomic_float_add = true;
caps->vs_instanceid = true;
caps->vertex_element_instance_divisor = true;
caps->start_instance = true;
caps->seamless_cube_map = true;
caps->seamless_cube_map_per_texture = true;
caps->max_texture_array_layers = 256; /* for GL3 */
caps->min_texel_offset = -8;
caps->max_texel_offset = 7;
caps->conditional_render = true;
caps->fragment_color_clamped = true;
caps->vertex_color_unclamped = true; /* draw module */
caps->vertex_color_clamped = true; /* draw module */
caps->glsl_feature_level =
caps->glsl_feature_level_compatibility = 400;
caps->compute = true;
caps->user_vertex_buffers = true;
caps->stream_output_pause_resume = true;
caps->stream_output_interleave_buffers = true;
caps->vs_layer_viewport = true;
caps->doubles = true;
caps->int64 = true;
caps->constant_buffer_offset_alignment = 16;
caps->min_map_buffer_alignment = 64;
caps->query_timestamp = true;
caps->timer_resolution = true;
caps->cube_map_array = true;
caps->texture_buffer_objects = true;
caps->max_texel_buffer_elements = 65536;
caps->texture_buffer_offset_alignment = 16;
caps->texture_transfer_modes = 0;
caps->max_viewports = PIPE_MAX_VIEWPORTS;
caps->endianness = PIPE_ENDIAN_NATIVE;
caps->max_texture_gather_components = 4;
caps->texture_gather_sm5 = true;
caps->texture_query_lod = true;
caps->vs_window_space_position = true;
caps->fs_fine_derivative = true;
caps->sampler_view_target = true;
caps->fake_sw_msaa = true;
caps->min_texture_gather_offset = -32;
caps->max_texture_gather_offset = 31;
caps->draw_indirect = true;
caps->query_so_overflow = true;
caps->nir_images_as_deref = false;
/* Can't expose shareable shaders because the draw shaders reference the
* draw module's state, which is per-context.
*/
caps->shareable_shaders = false;
caps->vendor_id = 0xFFFFFFFF;
caps->device_id = 0xFFFFFFFF;
/* XXX: Do we want to return the full amount fo system memory ? */
uint64_t system_memory;
if (os_get_total_physical_memory(&system_memory)) {
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);
caps->video_memory = system_memory >> 20;
} else {
caps->video_memory = 0;
}
caps->uma = false;
caps->query_memory_info = true;
caps->conditional_render_inverted = true;
caps->clip_halfz = true;
caps->texture_float_linear = true;
caps->texture_half_float_linear = true;
caps->framebuffer_no_attachment = true;
caps->cull_distance = true;
caps->copy_between_compressed_and_plain_formats = true;
caps->shader_array_components = true;
caps->tgsi_texcoord = true;
caps->max_varyings = TGSI_EXEC_MAX_INPUT_ATTRIBS;
caps->pci_group =
caps->pci_bus =
caps->pci_device =
caps->pci_function = 0;
caps->max_gs_invocations = 32;
caps->max_shader_buffer_size = 1 << 27;
caps->shader_buffer_offset_alignment = 4;
caps->image_store_formatted = true;
caps->min_line_width =
caps->min_line_width_aa =
caps->min_point_size =
caps->min_point_size_aa = 1;
caps->point_size_granularity =
caps->line_width_granularity = 0.1;
caps->max_line_width =
caps->max_line_width_aa = 255.0; /* arbitrary */
caps->max_point_size =
caps->max_point_size_aa = 255.0; /* arbitrary */
caps->max_texture_anisotropy = 16.0;
caps->max_texture_lod_bias = 16.0; /* arbitrary */
}
static void
softpipe_destroy_screen( struct pipe_screen *screen )
{
FREE(screen);
}
/* This is often overriden by the co-state tracker.
*/
static void
softpipe_flush_frontbuffer(struct pipe_screen *_screen,
struct pipe_context *pipe,
struct pipe_resource *resource,
unsigned level, unsigned layer,
void *context_private,
unsigned nboxes,
struct pipe_box *sub_box)
{
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, nboxes, sub_box);
}
static int
softpipe_screen_get_fd(struct pipe_screen *screen)
{
struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
if (winsys->get_fd)
return winsys->get_fd(winsys);
else
return -1;
}
/**
* 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;
sp_debug = debug_get_option_sp_debug();
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_device_vendor = softpipe_get_vendor; // TODO should be the CPU vendor
screen->base.get_screen_fd = softpipe_screen_get_fd;
screen->base.get_timestamp = u_default_get_timestamp;
screen->base.query_memory_info = util_sw_query_memory_info;
screen->base.is_format_supported = softpipe_is_format_supported;
screen->base.context_create = softpipe_create_context;
screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
screen->use_llvm = sp_debug & SP_DBG_USE_LLVM;
for (unsigned i = 0; i <= MESA_SHADER_COMPUTE; i++)
screen->base.nir_options[i] = &sp_compiler_options;
softpipe_init_screen_texture_funcs(&screen->base);
softpipe_init_screen_fence_funcs(&screen->base);
softpipe_init_shader_caps(screen);
softpipe_init_compute_caps(screen);
softpipe_init_screen_caps(screen);
return &screen->base;
}
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