X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fauxiliary%2Fdraw%2Fdraw_context.c;h=02abddf1491ba7c137c14593b6cf30db31671eb3;hb=c7f5c9a3dc6350252e73b541bb85ab3ed9e64a9c;hp=b814ecb87ab932985ea3721029cef174cb6aa5b4;hpb=dc544ad9c6e6e24fd2f19dfe83aa294d218f7310;p=mesa.git diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c index b814ecb87ab..02abddf1491 100644 --- a/src/gallium/auxiliary/draw/draw_context.c +++ b/src/gallium/auxiliary/draw/draw_context.c @@ -31,18 +31,49 @@ */ +#include "pipe/p_context.h" #include "util/u_memory.h" #include "util/u_math.h" #include "draw_context.h" #include "draw_vs.h" +#include "draw_gs.h" +#if HAVE_LLVM +#include "gallivm/lp_bld_init.h" +#endif -struct draw_context *draw_create( void ) +struct draw_context *draw_create( struct pipe_context *pipe ) { struct draw_context *draw = CALLOC_STRUCT( draw_context ); if (draw == NULL) goto fail; +#if HAVE_LLVM + lp_build_init(); + assert(lp_build_engine); + draw->engine = lp_build_engine; +#endif + + if (!draw_init(draw)) + goto fail; + + draw->pipe = pipe; + + return draw; + +fail: + draw_destroy( draw ); + return NULL; +} + +boolean draw_init(struct draw_context *draw) +{ + /* + * Note that several functions compute the clipmask of the predefined + * formats with hardcoded formulas instead of using these. So modifications + * here must be reflected there too. + */ + ASSIGN_4V( draw->plane[0], -1, 0, 0, 1 ); ASSIGN_4V( draw->plane[1], 1, 0, 0, 1 ); ASSIGN_4V( draw->plane[2], 0, -1, 0, 1 ); @@ -56,28 +87,40 @@ struct draw_context *draw_create( void ) if (!draw_pipeline_init( draw )) - goto fail; + return FALSE; if (!draw_pt_init( draw )) - goto fail; + return FALSE; if (!draw_vs_init( draw )) - goto fail; + return FALSE; - return draw; + if (!draw_gs_init( draw )) + return FALSE; -fail: - draw_destroy( draw ); - return NULL; + return TRUE; } void draw_destroy( struct draw_context *draw ) { + struct pipe_context *pipe; + int i, j; + if (!draw) return; + pipe = draw->pipe; + /* free any rasterizer CSOs that we may have created. + */ + for (i = 0; i < 2; i++) { + for (j = 0; j < 2; j++) { + if (draw->rasterizer_no_cull[i][j]) { + pipe->delete_rasterizer_state(pipe, draw->rasterizer_no_cull[i][j]); + } + } + } /* Not so fast -- we're just borrowing this at the moment. * @@ -88,6 +131,7 @@ void draw_destroy( struct draw_context *draw ) draw_pipeline_destroy( draw ); draw_pt_destroy( draw ); draw_vs_destroy( draw ); + draw_gs_destroy( draw ); FREE( draw ); } @@ -118,14 +162,17 @@ void draw_set_mrd(struct draw_context *draw, double mrd) * This causes the drawing pipeline to be rebuilt. */ void draw_set_rasterizer_state( struct draw_context *draw, - const struct pipe_rasterizer_state *raster ) + const struct pipe_rasterizer_state *raster, + void *rast_handle ) { - draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + if (!draw->suspend_flushing) { + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + + draw->rasterizer = raster; + draw->rast_handle = rast_handle; - draw->rasterizer = raster; - draw->bypass_clipping = - ((draw->rasterizer && draw->rasterizer->bypass_vs_clip_and_viewport) || - draw->driver.bypass_clipping); + draw->bypass_clipping = draw->driver.bypass_clipping; + } } @@ -135,9 +182,7 @@ void draw_set_driver_clipping( struct draw_context *draw, draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); draw->driver.bypass_clipping = bypass_clipping; - draw->bypass_clipping = - ((draw->rasterizer && draw->rasterizer->bypass_vs_clip_and_viewport) || - draw->driver.bypass_clipping); + draw->bypass_clipping = draw->driver.bypass_clipping; } @@ -228,11 +273,22 @@ draw_set_mapped_vertex_buffer(struct draw_context *draw, void draw_set_mapped_constant_buffer(struct draw_context *draw, - const void *buffer, + unsigned shader_type, + unsigned slot, + const void *buffer, unsigned size ) { - draw->pt.user.constants = buffer; - draw_vs_set_constants( draw, (const float (*)[4])buffer, size ); + debug_assert(shader_type == PIPE_SHADER_VERTEX || + shader_type == PIPE_SHADER_GEOMETRY); + debug_assert(slot < PIPE_MAX_CONSTANT_BUFFERS); + + if (shader_type == PIPE_SHADER_VERTEX) { + draw->pt.user.vs_constants[slot] = buffer; + draw_vs_set_constants(draw, slot, buffer, size); + } else if (shader_type == PIPE_SHADER_GEOMETRY) { + draw->pt.user.gs_constants[slot] = buffer; + draw_gs_set_constants(draw, slot, buffer, size); + } } @@ -248,6 +304,17 @@ draw_wide_point_threshold(struct draw_context *draw, float threshold) } +/** + * Should the draw module handle point->quad conversion for drawing sprites? + */ +void +draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite) +{ + draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); + draw->pipeline.wide_point_sprites = draw_sprite; +} + + /** * Tells the draw module to draw lines with triangles if their width * is greater than this threshold. @@ -295,7 +362,7 @@ draw_set_force_passthrough( struct draw_context *draw, boolean enable ) * a post-transformed vertex. * * With this function, drivers that use the draw module should have no reason - * to track the current vertex shader. + * to track the current vertex/geometry shader. * * Note that the draw module may sometimes generate vertices with extra * attributes (such as texcoords for AA lines). The driver can call this @@ -306,43 +373,64 @@ draw_set_force_passthrough( struct draw_context *draw, boolean enable ) * work for the drivers. */ int -draw_find_vs_output(const struct draw_context *draw, - uint semantic_name, uint semantic_index) +draw_find_shader_output(const struct draw_context *draw, + uint semantic_name, uint semantic_index) { const struct draw_vertex_shader *vs = draw->vs.vertex_shader; + const struct draw_geometry_shader *gs = draw->gs.geometry_shader; uint i; - for (i = 0; i < vs->info.num_outputs; i++) { - if (vs->info.output_semantic_name[i] == semantic_name && - vs->info.output_semantic_index[i] == semantic_index) + const struct tgsi_shader_info *info = &vs->info; + + if (gs) + info = &gs->info; + + for (i = 0; i < info->num_outputs; i++) { + if (info->output_semantic_name[i] == semantic_name && + info->output_semantic_index[i] == semantic_index) return i; } /* XXX there may be more than one extra vertex attrib. * For example, simulated gl_FragCoord and gl_PointCoord. */ - if (draw->extra_vp_outputs.semantic_name == semantic_name && - draw->extra_vp_outputs.semantic_index == semantic_index) { - return draw->extra_vp_outputs.slot; + if (draw->extra_shader_outputs.semantic_name == semantic_name && + draw->extra_shader_outputs.semantic_index == semantic_index) { + return draw->extra_shader_outputs.slot; } + return 0; } /** - * Return number of vertex shader outputs. + * Return total number of the shader outputs. This function is similar to + * draw_current_shader_outputs() but this function also counts any extra + * vertex/geometry output attributes that may be filled in by some draw + * stages (such as AA point, AA line). + * + * If geometry shader is present, its output will be returned, + * if not vertex shader is used. */ uint -draw_num_vs_outputs(const struct draw_context *draw) +draw_num_shader_outputs(const struct draw_context *draw) { uint count = draw->vs.vertex_shader->info.num_outputs; - if (draw->extra_vp_outputs.slot > 0) + + /* If a geometry shader is present, its outputs go to the + * driver, else the vertex shader's outputs. + */ + if (draw->gs.geometry_shader) + count = draw->gs.geometry_shader->info.num_outputs; + + if (draw->extra_shader_outputs.slot > 0) count++; return count; } /** - * Provide TGSI sampler objects for vertex shaders that use texture fetches. + * Provide TGSI sampler objects for vertex/geometry shaders that use + * texture fetches. * This might only be used by software drivers for the time being. */ void @@ -352,6 +440,8 @@ draw_texture_samplers(struct draw_context *draw, { draw->vs.num_samplers = num_samplers; draw->vs.samplers = samplers; + draw->gs.num_samplers = num_samplers; + draw->gs.samplers = samplers; } @@ -363,13 +453,6 @@ void draw_set_render( struct draw_context *draw, draw->render = render; } -void draw_set_edgeflags( struct draw_context *draw, - const unsigned *edgeflag ) -{ - draw->pt.user.edgeflag = edgeflag; -} - - /** @@ -385,12 +468,14 @@ void draw_set_edgeflags( struct draw_context *draw, void draw_set_mapped_element_buffer_range( struct draw_context *draw, unsigned eltSize, + int eltBias, unsigned min_index, unsigned max_index, const void *elements ) { draw->pt.user.elts = elements; draw->pt.user.eltSize = eltSize; + draw->pt.user.eltBias = eltBias; draw->pt.user.min_index = min_index; draw->pt.user.max_index = max_index; } @@ -399,10 +484,12 @@ draw_set_mapped_element_buffer_range( struct draw_context *draw, void draw_set_mapped_element_buffer( struct draw_context *draw, unsigned eltSize, + int eltBias, const void *elements ) { draw->pt.user.elts = elements; draw->pt.user.eltSize = eltSize; + draw->pt.user.eltBias = eltBias; draw->pt.user.min_index = 0; draw->pt.user.max_index = 0xffffffff; } @@ -425,3 +512,65 @@ void draw_do_flush( struct draw_context *draw, unsigned flags ) draw->flushing = FALSE; } } + + +/** + * Return the number of output attributes produced by the geometry + * shader, if present. If no geometry shader, return the number of + * outputs from the vertex shader. + * \sa draw_num_shader_outputs + */ +uint +draw_current_shader_outputs(const struct draw_context *draw) +{ + if (draw->gs.geometry_shader) + return draw->gs.num_gs_outputs; + return draw->vs.num_vs_outputs; +} + + +/** + * Return the index of the shader output which will contain the + * vertex position. + */ +uint +draw_current_shader_position_output(const struct draw_context *draw) +{ + if (draw->gs.geometry_shader) + return draw->gs.position_output; + return draw->vs.position_output; +} + + +/** + * Return a pointer/handle for a driver/CSO rasterizer object which + * disabled culling, stippling, unfilled tris, etc. + * This is used by some pipeline stages (such as wide_point, aa_line + * and aa_point) which convert points/lines into triangles. In those + * cases we don't want to accidentally cull the triangles. + * + * \param scissor should the rasterizer state enable scissoring? + * \param flatshade should the rasterizer state use flat shading? + * \return rasterizer CSO handle + */ +void * +draw_get_rasterizer_no_cull( struct draw_context *draw, + boolean scissor, + boolean flatshade ) +{ + if (!draw->rasterizer_no_cull[scissor][flatshade]) { + /* create now */ + struct pipe_context *pipe = draw->pipe; + struct pipe_rasterizer_state rast; + + memset(&rast, 0, sizeof(rast)); + rast.scissor = scissor; + rast.flatshade = flatshade; + rast.front_winding = PIPE_WINDING_CCW; + rast.gl_rasterization_rules = draw->rasterizer->gl_rasterization_rules; + + draw->rasterizer_no_cull[scissor][flatshade] = + pipe->create_rasterizer_state(pipe, &rast); + } + return draw->rasterizer_no_cull[scissor][flatshade]; +}