diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_context.c')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_context.c | 113 |
1 files changed, 69 insertions, 44 deletions
diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c index 995b675b9a..937b093479 100644 --- a/src/gallium/auxiliary/draw/draw_context.c +++ b/src/gallium/auxiliary/draw/draw_context.c @@ -34,6 +34,7 @@ #include "pipe/p_context.h" #include "util/u_memory.h" #include "util/u_math.h" +#include "util/u_cpu_detect.h" #include "draw_context.h" #include "draw_vs.h" #include "draw_gs.h" @@ -41,6 +42,25 @@ #if HAVE_LLVM #include "gallivm/lp_bld_init.h" #include "draw_llvm.h" + +static boolean +draw_get_option_use_llvm(void) +{ + static boolean first = TRUE; + static boolean value; + if (first) { + first = FALSE; + value = debug_get_bool_option("DRAW_USE_LLVM", TRUE); + +#ifdef PIPE_ARCH_X86 + util_cpu_detect(); + /* require SSE2 due to LLVM PR6960. */ + if (!util_cpu_caps.has_sse2) + value = FALSE; +#endif + } + return value; +} #endif struct draw_context *draw_create( struct pipe_context *pipe ) @@ -50,10 +70,13 @@ struct draw_context *draw_create( struct pipe_context *pipe ) goto fail; #if HAVE_LLVM - lp_build_init(); - assert(lp_build_engine); - draw->engine = lp_build_engine; - draw->llvm = draw_llvm_create(draw); + if(draw_get_option_use_llvm()) + { + lp_build_init(); + assert(lp_build_engine); + draw->engine = lp_build_engine; + draw->llvm = draw_llvm_create(draw); + } #endif if (!draw_init(draw)) @@ -83,6 +106,8 @@ boolean draw_init(struct draw_context *draw) ASSIGN_4V( draw->plane[4], 0, 0, 1, 1 ); /* yes these are correct */ ASSIGN_4V( draw->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */ draw->nr_planes = 6; + draw->clip_xy = 1; + draw->clip_z = 1; draw->reduced_prim = ~0; /* != any of PIPE_PRIM_x */ @@ -135,7 +160,8 @@ void draw_destroy( struct draw_context *draw ) draw_vs_destroy( draw ); draw_gs_destroy( draw ); #ifdef HAVE_LLVM - draw_llvm_destroy( draw->llvm ); + if(draw->llvm) + draw_llvm_destroy( draw->llvm ); #endif FREE( draw ); @@ -162,6 +188,14 @@ void draw_set_mrd(struct draw_context *draw, double mrd) } +static void update_clip_flags( struct draw_context *draw ) +{ + draw->clip_xy = !draw->driver.bypass_clip_xy; + draw->clip_z = (!draw->driver.bypass_clip_z && + !draw->depth_clamp); + draw->clip_user = (draw->nr_planes > 6); +} + /** * Register new primitive rasterization/rendering state. * This causes the drawing pipeline to be rebuilt. @@ -176,18 +210,25 @@ void draw_set_rasterizer_state( struct draw_context *draw, draw->rasterizer = raster; draw->rast_handle = rast_handle; - draw->bypass_clipping = draw->driver.bypass_clipping; - } + } } - +/* With a little more work, llvmpipe will be able to turn this off and + * do its own x/y clipping. + * + * Some hardware can turn off clipping altogether - in particular any + * hardware with a TNL unit can do its own clipping, even if it is + * relying on the draw module for some other reason. + */ void draw_set_driver_clipping( struct draw_context *draw, - boolean bypass_clipping ) + boolean bypass_clip_xy, + boolean bypass_clip_z ) { draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); - draw->driver.bypass_clipping = bypass_clipping; - draw->bypass_clipping = draw->driver.bypass_clipping; + draw->driver.bypass_clip_xy = bypass_clip_xy; + draw->driver.bypass_clip_z = bypass_clip_z; + update_clip_flags(draw); } @@ -217,6 +258,8 @@ void draw_set_clip_state( struct draw_context *draw, memcpy(&draw->plane[6], clip->ucp, clip->nr * sizeof(clip->ucp[0])); draw->nr_planes = 6 + clip->nr; draw->depth_clamp = clip->depth_clamp; + + update_clip_flags(draw); } @@ -472,47 +515,28 @@ void draw_set_render( struct draw_context *draw, } - -/** - * Tell the drawing context about the index/element buffer to use - * (ala glDrawElements) - * If no element buffer is to be used (i.e. glDrawArrays) then this - * should be called with eltSize=0 and elements=NULL. - * - * \param draw the drawing context - * \param eltSize size of each element (1, 2 or 4 bytes) - * \param elements the element buffer ptr - */ 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_set_index_buffer(struct draw_context *draw, + const struct pipe_index_buffer *ib) { - 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; + if (ib) + memcpy(&draw->pt.index_buffer, ib, sizeof(draw->pt.index_buffer)); + else + memset(&draw->pt.index_buffer, 0, sizeof(draw->pt.index_buffer)); } +/** + * Tell drawing context where to find mapped index/element buffer. + */ void -draw_set_mapped_element_buffer( struct draw_context *draw, - unsigned eltSize, - int eltBias, - const void *elements ) +draw_set_mapped_index_buffer(struct draw_context *draw, + 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; + draw->pt.user.elts = elements; } - + /* Revamp me please: */ void draw_do_flush( struct draw_context *draw, unsigned flags ) @@ -659,7 +683,8 @@ draw_set_mapped_texture(struct draw_context *draw, const void *data[DRAW_MAX_TEXTURE_LEVELS]) { #ifdef HAVE_LLVM - draw_llvm_set_mapped_texture(draw, + if(draw->llvm) + draw_llvm_set_mapped_texture(draw, sampler_idx, width, height, depth, last_level, row_stride, img_stride, data); 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