diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_context.c')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_context.c | 121 |
1 files changed, 107 insertions, 14 deletions
diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c index bb0988543f5..02abddf1491 100644 --- a/src/gallium/auxiliary/draw/draw_context.c +++ b/src/gallium/auxiliary/draw/draw_context.c @@ -31,19 +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 ); @@ -57,31 +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; if (!draw_gs_init( draw )) - goto fail; + return FALSE; - return draw; - -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. * @@ -123,12 +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->bypass_clipping = draw->driver.bypass_clipping; + draw->rasterizer = raster; + draw->rast_handle = rast_handle; + + draw->bypass_clipping = draw->driver.bypass_clipping; + } } @@ -261,6 +305,17 @@ 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. */ @@ -413,12 +468,14 @@ void draw_set_render( 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; } @@ -427,10 +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; } @@ -481,3 +540,37 @@ draw_current_shader_position_output(const struct draw_context *draw) 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]; +} |