diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_screen.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_screen.c | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c new file mode 100644 index 0000000000..fc57d3eb61 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_screen.c @@ -0,0 +1,330 @@ +/************************************************************************** + * + * 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; + 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; +} |