| /************************************************************************** |
| * |
| * 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 "pipe/p_defines.h" |
| #include "pipe/p_screen.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" |
| |
| |
| 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_TEXTURE_IMAGE_UNITS: |
| return PIPE_MAX_SAMPLERS; |
| case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: |
| return PIPE_MAX_VERTEX_SAMPLERS; |
| case PIPE_CAP_MAX_COMBINED_SAMPLERS: |
| return PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS; |
| case PIPE_CAP_NPOT_TEXTURES: |
| return 1; |
| case PIPE_CAP_TWO_SIDED_STENCIL: |
| return 1; |
| case PIPE_CAP_GLSL: |
| return 1; |
| case PIPE_CAP_SM3: |
| return 1; |
| 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_TIMER_QUERY: |
| return 1; |
| case PIPE_CAP_TEXTURE_MIRROR_CLAMP: |
| return 1; |
| case PIPE_CAP_TEXTURE_MIRROR_REPEAT: |
| 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_2D_LEVELS; |
| case PIPE_CAP_TGSI_CONT_SUPPORTED: |
| return 1; |
| case PIPE_CAP_BLEND_EQUATION_SEPARATE: |
| return 1; |
| case PIPE_CAP_MAX_CONST_BUFFERS: |
| return PIPE_MAX_CONSTANT_BUFFERS; |
| case PIPE_CAP_MAX_CONST_BUFFER_SIZE: |
| return 4096 * 4 * sizeof(float); |
| 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_STREAM_OUTPUT: |
| return 1; |
| |
| case PIPE_CAP_MAX_VS_INSTRUCTIONS: |
| case PIPE_CAP_MAX_FS_INSTRUCTIONS: |
| case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS: |
| case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS: |
| case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS: |
| case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS: |
| case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS: |
| case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS: |
| /* There is no limit in number of instructions beyond available memory */ |
| return 32768; |
| case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH: |
| case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH: |
| return TGSI_EXEC_MAX_NESTING; |
| case PIPE_CAP_MAX_VS_INPUTS: |
| case PIPE_CAP_MAX_FS_INPUTS: |
| return TGSI_EXEC_MAX_INPUT_ATTRIBS; |
| case PIPE_CAP_MAX_FS_CONSTS: |
| case PIPE_CAP_MAX_VS_CONSTS: |
| return TGSI_EXEC_MAX_CONST_BUFFER; |
| case PIPE_CAP_MAX_VS_TEMPS: |
| case PIPE_CAP_MAX_FS_TEMPS: |
| return TGSI_EXEC_NUM_TEMPS; |
| case PIPE_CAP_MAX_VS_ADDRS: |
| case PIPE_CAP_MAX_FS_ADDRS: |
| return TGSI_EXEC_NUM_ADDRS; |
| case PIPE_CAP_MAX_VS_PREDS: |
| case PIPE_CAP_MAX_FS_PREDS: |
| return TGSI_EXEC_NUM_PREDS; |
| |
| case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: |
| return 0; |
| |
| case PIPE_CAP_GEOMETRY_SHADER4: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| |
| static float |
| softpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param) |
| { |
| switch (param) { |
| case PIPE_CAP_MAX_LINE_WIDTH: |
| /* fall-through */ |
| case PIPE_CAP_MAX_LINE_WIDTH_AA: |
| return 255.0; /* arbitrary */ |
| case PIPE_CAP_MAX_POINT_WIDTH: |
| /* fall-through */ |
| case PIPE_CAP_MAX_POINT_WIDTH_AA: |
| return 255.0; /* arbitrary */ |
| case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: |
| return 16.0; /* not actually signficant at this time */ |
| case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: |
| return 16.0; /* arbitrary */ |
| 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, |
| unsigned geom_flags ) |
| { |
| 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_2D || |
| 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; |
| |
| /* |
| * TODO: Unfortunately we cannot render into anything more than 32 bits |
| * because we encode color clear values into a 32bit word. |
| */ |
| if (format_desc->block.bits > 32) |
| return FALSE; |
| } |
| |
| if (bind & PIPE_BIND_DEPTH_STENCIL) { |
| if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) |
| return FALSE; |
| |
| /* |
| * TODO: Unfortunately we cannot render into anything more than 32 bits |
| * because we encode depth and stencil clear values into a 32bit word. |
| */ |
| if (format_desc->block.bits > 32) |
| return FALSE; |
| |
| /* |
| * TODO: eliminate this restriction |
| */ |
| if (format == PIPE_FORMAT_Z32_FLOAT) |
| 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_surface *surface, |
| void *context_private) |
| { |
| struct softpipe_screen *screen = softpipe_screen(_screen); |
| struct sw_winsys *winsys = screen->winsys; |
| struct softpipe_resource *texture = softpipe_resource(surface->texture); |
| |
| assert(texture->dt); |
| if (texture->dt) |
| winsys->displaytarget_display(winsys, texture->dt, context_private); |
| } |
| |
| /** |
| * 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.winsys = NULL; |
| 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_paramf = softpipe_get_paramf; |
| screen->base.is_format_supported = softpipe_is_format_supported; |
| screen->base.context_create = softpipe_create_context; |
| screen->base.flush_frontbuffer = softpipe_flush_frontbuffer; |
| |
| util_format_s3tc_init(); |
| |
| softpipe_init_screen_texture_funcs(&screen->base); |
| softpipe_init_screen_fence_funcs(&screen->base); |
| |
| return &screen->base; |
| } |