da7bd6a90e
laying down the foundation for everything and implementing most of the stuff. linking, gl_VerticesIn and multidimensional inputs are left.
334 lines
9.7 KiB
C
334 lines
9.7 KiB
C
/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "util/u_memory.h"
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#include "util/u_format.h"
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#include "util/u_format_s3tc.h"
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#include "pipe/p_defines.h"
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#include "pipe/p_screen.h"
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#include "state_tracker/sw_winsys.h"
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#include "tgsi/tgsi_exec.h"
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#include "sp_texture.h"
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#include "sp_screen.h"
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#include "sp_context.h"
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#include "sp_fence.h"
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#include "sp_public.h"
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static const char *
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softpipe_get_vendor(struct pipe_screen *screen)
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{
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return "VMware, Inc.";
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}
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static const char *
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softpipe_get_name(struct pipe_screen *screen)
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{
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return "softpipe";
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}
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static int
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softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
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{
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switch (param) {
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case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
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return PIPE_MAX_SAMPLERS;
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case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
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return PIPE_MAX_VERTEX_SAMPLERS;
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case PIPE_CAP_MAX_COMBINED_SAMPLERS:
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return PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS;
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case PIPE_CAP_NPOT_TEXTURES:
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return 1;
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case PIPE_CAP_TWO_SIDED_STENCIL:
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return 1;
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case PIPE_CAP_GLSL:
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return 1;
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case PIPE_CAP_SM3:
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return 1;
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case PIPE_CAP_ANISOTROPIC_FILTER:
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return 0;
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case PIPE_CAP_POINT_SPRITE:
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return 1;
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case PIPE_CAP_MAX_RENDER_TARGETS:
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return PIPE_MAX_COLOR_BUFS;
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case PIPE_CAP_OCCLUSION_QUERY:
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return 1;
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case PIPE_CAP_TIMER_QUERY:
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return 1;
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case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
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return 1;
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case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
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return 1;
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case PIPE_CAP_TEXTURE_SHADOW_MAP:
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return 1;
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case PIPE_CAP_TEXTURE_SWIZZLE:
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return 1;
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case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
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return SP_MAX_TEXTURE_2D_LEVELS;
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case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
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return SP_MAX_TEXTURE_3D_LEVELS;
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case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
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return SP_MAX_TEXTURE_2D_LEVELS;
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case PIPE_CAP_TGSI_CONT_SUPPORTED:
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return 1;
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case PIPE_CAP_BLEND_EQUATION_SEPARATE:
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return 1;
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case PIPE_CAP_MAX_CONST_BUFFERS:
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return PIPE_MAX_CONSTANT_BUFFERS;
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case PIPE_CAP_MAX_CONST_BUFFER_SIZE:
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return 4096 * 4 * sizeof(float);
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case PIPE_CAP_INDEP_BLEND_ENABLE:
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return 1;
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case PIPE_CAP_INDEP_BLEND_FUNC:
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return 1;
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case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
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case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
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case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
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case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
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return 1;
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case PIPE_CAP_STREAM_OUTPUT:
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return 1;
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case PIPE_CAP_MAX_VS_INSTRUCTIONS:
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case PIPE_CAP_MAX_FS_INSTRUCTIONS:
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case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS:
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case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS:
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case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS:
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case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS:
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case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS:
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case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS:
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/* There is no limit in number of instructions beyond available memory */
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return 32768;
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case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH:
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case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH:
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return TGSI_EXEC_MAX_NESTING;
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case PIPE_CAP_MAX_VS_INPUTS:
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case PIPE_CAP_MAX_FS_INPUTS:
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return TGSI_EXEC_MAX_INPUT_ATTRIBS;
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case PIPE_CAP_MAX_FS_CONSTS:
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case PIPE_CAP_MAX_VS_CONSTS:
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return TGSI_EXEC_MAX_CONST_BUFFER;
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case PIPE_CAP_MAX_VS_TEMPS:
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case PIPE_CAP_MAX_FS_TEMPS:
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return TGSI_EXEC_NUM_TEMPS;
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case PIPE_CAP_MAX_VS_ADDRS:
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case PIPE_CAP_MAX_FS_ADDRS:
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return TGSI_EXEC_NUM_ADDRS;
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case PIPE_CAP_MAX_VS_PREDS:
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case PIPE_CAP_MAX_FS_PREDS:
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return TGSI_EXEC_NUM_PREDS;
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case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
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return 0;
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case PIPE_CAP_GEOMETRY_SHADER4:
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return 1;
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default:
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return 0;
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}
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}
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static float
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softpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
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{
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switch (param) {
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case PIPE_CAP_MAX_LINE_WIDTH:
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/* fall-through */
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case PIPE_CAP_MAX_LINE_WIDTH_AA:
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return 255.0; /* arbitrary */
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case PIPE_CAP_MAX_POINT_WIDTH:
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/* fall-through */
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case PIPE_CAP_MAX_POINT_WIDTH_AA:
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return 255.0; /* arbitrary */
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case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
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return 16.0; /* not actually signficant at this time */
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case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
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return 16.0; /* arbitrary */
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default:
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return 0;
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}
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}
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/**
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* Query format support for creating a texture, drawing surface, etc.
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* \param format the format to test
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* \param type one of PIPE_TEXTURE, PIPE_SURFACE
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*/
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static boolean
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softpipe_is_format_supported( struct pipe_screen *screen,
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enum pipe_format format,
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enum pipe_texture_target target,
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unsigned sample_count,
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unsigned bind,
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unsigned geom_flags )
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{
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struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
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const struct util_format_description *format_desc;
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assert(target == PIPE_BUFFER ||
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target == PIPE_TEXTURE_1D ||
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target == PIPE_TEXTURE_2D ||
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target == PIPE_TEXTURE_3D ||
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target == PIPE_TEXTURE_CUBE);
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format_desc = util_format_description(format);
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if (!format_desc)
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return FALSE;
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if (sample_count > 1)
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return FALSE;
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if (bind & (PIPE_BIND_DISPLAY_TARGET |
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PIPE_BIND_SCANOUT |
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PIPE_BIND_SHARED)) {
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if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
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return FALSE;
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}
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if (bind & PIPE_BIND_RENDER_TARGET) {
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if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
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return FALSE;
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/*
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* Although possible, it is unnatural to render into compressed or YUV
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* surfaces. So disable these here to avoid going into weird paths
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* inside the state trackers.
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*/
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if (format_desc->block.width != 1 ||
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format_desc->block.height != 1)
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return FALSE;
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/*
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* TODO: Unfortunately we cannot render into anything more than 32 bits
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* because we encode color clear values into a 32bit word.
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*/
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if (format_desc->block.bits > 32)
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return FALSE;
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}
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if (bind & PIPE_BIND_DEPTH_STENCIL) {
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if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
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return FALSE;
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/*
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* TODO: Unfortunately we cannot render into anything more than 32 bits
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* because we encode depth and stencil clear values into a 32bit word.
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*/
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if (format_desc->block.bits > 32)
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return FALSE;
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/*
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* TODO: eliminate this restriction
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*/
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if (format == PIPE_FORMAT_Z32_FLOAT)
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return FALSE;
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}
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/*
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* All other operations (sampling, transfer, etc).
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*/
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if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
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return util_format_s3tc_enabled;
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}
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/*
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* Everything else should be supported by u_format.
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*/
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return TRUE;
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}
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static void
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softpipe_destroy_screen( struct pipe_screen *screen )
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{
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struct softpipe_screen *sp_screen = softpipe_screen(screen);
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struct sw_winsys *winsys = sp_screen->winsys;
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if(winsys->destroy)
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winsys->destroy(winsys);
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FREE(screen);
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}
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/* This is often overriden by the co-state tracker.
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*/
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static void
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softpipe_flush_frontbuffer(struct pipe_screen *_screen,
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struct pipe_surface *surface,
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void *context_private)
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{
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struct softpipe_screen *screen = softpipe_screen(_screen);
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struct sw_winsys *winsys = screen->winsys;
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struct softpipe_resource *texture = softpipe_resource(surface->texture);
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assert(texture->dt);
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if (texture->dt)
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winsys->displaytarget_display(winsys, texture->dt, context_private);
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}
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/**
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* Create a new pipe_screen object
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* Note: we're not presently subclassing pipe_screen (no softpipe_screen).
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*/
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struct pipe_screen *
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softpipe_create_screen(struct sw_winsys *winsys)
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{
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struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen);
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if (!screen)
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return NULL;
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screen->winsys = winsys;
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screen->base.winsys = NULL;
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screen->base.destroy = softpipe_destroy_screen;
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screen->base.get_name = softpipe_get_name;
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screen->base.get_vendor = softpipe_get_vendor;
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screen->base.get_param = softpipe_get_param;
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screen->base.get_paramf = softpipe_get_paramf;
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screen->base.is_format_supported = softpipe_is_format_supported;
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screen->base.context_create = softpipe_create_context;
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screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
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util_format_s3tc_init();
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softpipe_init_screen_texture_funcs(&screen->base);
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softpipe_init_screen_fence_funcs(&screen->base);
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return &screen->base;
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}
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