diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_context.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_context.c | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c new file mode 100644 index 0000000000..cea6b90104 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_context.c @@ -0,0 +1,333 @@ +/************************************************************************** + * + * Copyright 2007 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. + * + **************************************************************************/ + +/* Author: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "pipe/draw/draw_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "pipe/p_util.h" +#include "sp_clear.h" +#include "sp_context.h" +#include "sp_flush.h" +#include "sp_prim_setup.h" +#include "sp_prim_vbuf.h" +#include "sp_state.h" +#include "sp_surface.h" +#include "sp_tile_cache.h" +#include "sp_texture.h" +#include "sp_winsys.h" +#include "sp_query.h" + + + +/** + * 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_context *pipe, + enum pipe_format format, uint type ) +{ + switch (type) { + case PIPE_TEXTURE: + /* softpipe supports all texture formats */ + return TRUE; + case PIPE_SURFACE: + /* softpipe supports all (off-screen) surface formats */ + return TRUE; + default: + assert(0); + return FALSE; + } +} + + +/** + * Map any drawing surfaces which aren't already mapped + */ +void +softpipe_map_surfaces(struct softpipe_context *sp) +{ + unsigned i; + + for (i = 0; i < sp->framebuffer.num_cbufs; i++) { + sp_tile_cache_map_surfaces(sp->cbuf_cache[i]); + } + + sp_tile_cache_map_surfaces(sp->zsbuf_cache); +} + + +/** + * Unmap any mapped drawing surfaces + */ +void +softpipe_unmap_surfaces(struct softpipe_context *sp) +{ + uint i; + + for (i = 0; i < sp->framebuffer.num_cbufs; i++) + sp_flush_tile_cache(sp, sp->cbuf_cache[i]); + sp_flush_tile_cache(sp, sp->zsbuf_cache); + + for (i = 0; i < sp->framebuffer.num_cbufs; i++) { + sp_tile_cache_unmap_surfaces(sp->cbuf_cache[i]); + } + sp_tile_cache_unmap_surfaces(sp->zsbuf_cache); +} + + +static void softpipe_destroy( struct pipe_context *pipe ) +{ + struct softpipe_context *softpipe = softpipe_context( pipe ); + struct pipe_winsys *ws = pipe->winsys; + uint i; + + draw_destroy( softpipe->draw ); + + softpipe->quad.polygon_stipple->destroy( softpipe->quad.polygon_stipple ); + softpipe->quad.earlyz->destroy( softpipe->quad.earlyz ); + softpipe->quad.shade->destroy( softpipe->quad.shade ); + softpipe->quad.alpha_test->destroy( softpipe->quad.alpha_test ); + softpipe->quad.depth_test->destroy( softpipe->quad.depth_test ); + softpipe->quad.stencil_test->destroy( softpipe->quad.stencil_test ); + softpipe->quad.occlusion->destroy( softpipe->quad.occlusion ); + softpipe->quad.coverage->destroy( softpipe->quad.coverage ); + softpipe->quad.bufloop->destroy( softpipe->quad.bufloop ); + softpipe->quad.blend->destroy( softpipe->quad.blend ); + softpipe->quad.colormask->destroy( softpipe->quad.colormask ); + softpipe->quad.output->destroy( softpipe->quad.output ); + + for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) + sp_destroy_tile_cache(softpipe->cbuf_cache[i]); + sp_destroy_tile_cache(softpipe->zsbuf_cache); + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) + sp_destroy_tile_cache(softpipe->tex_cache[i]); + + for (i = 0; i < Elements(softpipe->constants); i++) { + if (softpipe->constants[i].buffer) { + pipe_buffer_reference(ws, &softpipe->constants[i].buffer, NULL); + } + } + + FREE( softpipe ); +} + + +static const char *softpipe_get_name( struct pipe_context *pipe ) +{ + return "softpipe"; +} + +static const char *softpipe_get_vendor( struct pipe_context *pipe ) +{ + return "Tungsten Graphics, Inc."; +} + +static int softpipe_get_param(struct pipe_context *pipe, int param) +{ + switch (param) { + case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: + return 8; + case PIPE_CAP_NPOT_TEXTURES: + return 1; + case PIPE_CAP_TWO_SIDED_STENCIL: + return 1; + case PIPE_CAP_GLSL: + return 1; + case PIPE_CAP_S3TC: + return 0; + case PIPE_CAP_ANISOTROPIC_FILTER: + return 0; + case PIPE_CAP_POINT_SPRITE: + return 1; + case PIPE_CAP_MAX_RENDER_TARGETS: + return 1; + case PIPE_CAP_OCCLUSION_QUERY: + return 1; + case PIPE_CAP_TEXTURE_SHADOW_MAP: + return 1; + case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: + return 12; /* max 2Kx2K */ + case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: + return 8; /* max 128x128x128 */ + case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: + return 12; /* max 2Kx2K */ + default: + return 0; + } +} + +static float softpipe_get_paramf(struct pipe_context *pipe, int 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 0.0; + + case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: + return 16.0; /* arbitrary */ + + default: + return 0; + } +} + +struct pipe_context *softpipe_create( struct pipe_winsys *pipe_winsys, + struct softpipe_winsys *softpipe_winsys ) +{ + struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context); + uint i; + +#if defined(__i386__) || defined(__386__) + softpipe->use_sse = GETENV( "GALLIUM_NOSSE" ) == NULL; +#else + softpipe->use_sse = FALSE; +#endif + + softpipe->dump_fs = GETENV( "GALLIUM_DUMP_FS" ) != NULL; + + softpipe->pipe.winsys = pipe_winsys; + softpipe->pipe.destroy = softpipe_destroy; + + /* queries */ + softpipe->pipe.is_format_supported = softpipe_is_format_supported; + softpipe->pipe.get_name = softpipe_get_name; + softpipe->pipe.get_vendor = softpipe_get_vendor; + softpipe->pipe.get_param = softpipe_get_param; + softpipe->pipe.get_paramf = softpipe_get_paramf; + + /* state setters */ + softpipe->pipe.create_blend_state = softpipe_create_blend_state; + softpipe->pipe.bind_blend_state = softpipe_bind_blend_state; + softpipe->pipe.delete_blend_state = softpipe_delete_blend_state; + + softpipe->pipe.create_sampler_state = softpipe_create_sampler_state; + softpipe->pipe.bind_sampler_state = softpipe_bind_sampler_state; + softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state; + + softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state; + softpipe->pipe.bind_depth_stencil_alpha_state = softpipe_bind_depth_stencil_state; + softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state; + + softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state; + softpipe->pipe.bind_rasterizer_state = softpipe_bind_rasterizer_state; + softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state; + + softpipe->pipe.create_fs_state = softpipe_create_fs_state; + softpipe->pipe.bind_fs_state = softpipe_bind_fs_state; + softpipe->pipe.delete_fs_state = softpipe_delete_fs_state; + + softpipe->pipe.create_vs_state = softpipe_create_vs_state; + softpipe->pipe.bind_vs_state = softpipe_bind_vs_state; + softpipe->pipe.delete_vs_state = softpipe_delete_vs_state; + + softpipe->pipe.set_blend_color = softpipe_set_blend_color; + softpipe->pipe.set_clip_state = softpipe_set_clip_state; + softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer; + softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state; + softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple; + softpipe->pipe.set_scissor_state = softpipe_set_scissor_state; + softpipe->pipe.set_sampler_texture = softpipe_set_sampler_texture; + softpipe->pipe.set_viewport_state = softpipe_set_viewport_state; + + softpipe->pipe.set_vertex_buffer = softpipe_set_vertex_buffer; + softpipe->pipe.set_vertex_element = softpipe_set_vertex_element; + + softpipe->pipe.draw_arrays = softpipe_draw_arrays; + softpipe->pipe.draw_elements = softpipe_draw_elements; + + softpipe->pipe.clear = softpipe_clear; + softpipe->pipe.flush = softpipe_flush; + + softpipe_init_query_funcs( softpipe ); + + /* textures */ + softpipe->pipe.texture_create = softpipe_texture_create; + softpipe->pipe.texture_release = softpipe_texture_release; + softpipe->pipe.get_tex_surface = softpipe_get_tex_surface; + + /* + * Alloc caches for accessing drawing surfaces and textures. + * Must be before quad stage setup! + */ + for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) + softpipe->cbuf_cache[i] = sp_create_tile_cache(); + softpipe->zsbuf_cache = sp_create_tile_cache(); + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) + softpipe->tex_cache[i] = sp_create_tile_cache(); + + + /* setup quad rendering stages */ + softpipe->quad.polygon_stipple = sp_quad_polygon_stipple_stage(softpipe); + softpipe->quad.earlyz = sp_quad_earlyz_stage(softpipe); + softpipe->quad.shade = sp_quad_shade_stage(softpipe); + softpipe->quad.alpha_test = sp_quad_alpha_test_stage(softpipe); + softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe); + softpipe->quad.stencil_test = sp_quad_stencil_test_stage(softpipe); + softpipe->quad.occlusion = sp_quad_occlusion_stage(softpipe); + softpipe->quad.coverage = sp_quad_coverage_stage(softpipe); + softpipe->quad.bufloop = sp_quad_bufloop_stage(softpipe); + softpipe->quad.blend = sp_quad_blend_stage(softpipe); + softpipe->quad.colormask = sp_quad_colormask_stage(softpipe); + softpipe->quad.output = sp_quad_output_stage(softpipe); + + softpipe->winsys = softpipe_winsys; + + /* + * Create drawing context and plug our rendering stage into it. + */ + softpipe->draw = draw_create(); + assert(softpipe->draw); + softpipe->setup = sp_draw_render_stage(softpipe); + + if (GETENV( "SP_VBUF" ) != NULL) { + sp_init_vbuf(softpipe); + } + else { + draw_set_rasterize_stage(softpipe->draw, softpipe->setup); + } + + sp_init_surface_functions(softpipe); + + return &softpipe->pipe; +} |