/************************************************************************** * * Copyright 2003 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_inlines.h" #include "util/u_prim.h" #include "util/u_upload_mgr.h" #include "util/u_draw_quad.h" #include "brw_draw.h" #include "brw_defines.h" #include "brw_context.h" #include "brw_state.h" #include "brw_debug.h" #include "brw_batchbuffer.h" static uint32_t prim_to_hw_prim[PIPE_PRIM_POLYGON+1] = { _3DPRIM_POINTLIST, _3DPRIM_LINELIST, _3DPRIM_LINELOOP, _3DPRIM_LINESTRIP, _3DPRIM_TRILIST, _3DPRIM_TRISTRIP, _3DPRIM_TRIFAN, _3DPRIM_QUADLIST, _3DPRIM_QUADSTRIP, _3DPRIM_POLYGON }; /* When the primitive changes, set a state bit and re-validate. Not * the nicest and would rather deal with this by having all the * programs be immune to the active primitive (ie. cope with all * possibilities). That may not be realistic however. */ static int brw_set_prim(struct brw_context *brw, unsigned prim ) { if (BRW_DEBUG & DEBUG_PRIMS) debug_printf("PRIM: %s\n", u_prim_name(prim)); if (prim != brw->primitive) { unsigned reduced_prim; brw->primitive = prim; brw->state.dirty.brw |= BRW_NEW_PRIMITIVE; reduced_prim = u_reduced_prim(prim); if (reduced_prim != brw->reduced_primitive) { brw->reduced_primitive = reduced_prim; brw->state.dirty.brw |= BRW_NEW_REDUCED_PRIMITIVE; } } return prim_to_hw_prim[prim]; } static int brw_emit_prim(struct brw_context *brw, unsigned start, unsigned count, boolean indexed, uint32_t hw_prim) { struct brw_3d_primitive prim_packet; int ret; if (BRW_DEBUG & DEBUG_PRIMS) debug_printf("%s start %d count %d indexed %d hw_prim %d\n", __FUNCTION__, start, count, indexed, hw_prim); prim_packet.header.opcode = CMD_3D_PRIM; prim_packet.header.length = sizeof(prim_packet)/4 - 2; prim_packet.header.pad = 0; prim_packet.header.topology = hw_prim; prim_packet.header.indexed = indexed; prim_packet.verts_per_instance = count; prim_packet.start_vert_location = start; if (indexed) prim_packet.start_vert_location += brw->ib.start_vertex_offset; prim_packet.instance_count = 1; prim_packet.start_instance_location = 0; prim_packet.base_vert_location = 0; /* prim->basevertex; XXX: add this to gallium */ /* If we're set to always flush, do it before and after the primitive emit. * We want to catch both missed flushes that hurt instruction/state cache * and missed flushes of the render cache as it heads to other parts of * the besides the draw code. */ if (0) { BEGIN_BATCH(1, IGNORE_CLIPRECTS); OUT_BATCH((CMD_MI_FLUSH << 16) | BRW_FLUSH_STATE_CACHE); ADVANCE_BATCH(); } if (prim_packet.verts_per_instance) { ret = brw_batchbuffer_data( brw->batch, &prim_packet, sizeof(prim_packet), LOOP_CLIPRECTS); if (ret) return ret; } if (0) { BEGIN_BATCH(1, IGNORE_CLIPRECTS); OUT_BATCH((CMD_MI_FLUSH << 16) | BRW_FLUSH_STATE_CACHE); ADVANCE_BATCH(); } return 0; } /* May fail if out of video memory for texture or vbo upload, or on * fallback conditions. */ static int try_draw_range_elements(struct brw_context *brw, boolean indexed, unsigned hw_prim, unsigned start, unsigned count) { int ret; ret = brw_validate_state(brw); if (ret) return ret; /* Check that we can fit our state in with our existing batchbuffer, or * flush otherwise. */ ret = brw->sws->check_aperture_space(brw->sws, brw->state.validated_bos, brw->state.validated_bo_count); if (ret) return ret; ret = brw_upload_state(brw); if (ret) return ret; ret = brw_emit_prim(brw, start, count, indexed, hw_prim); if (ret) return ret; if (brw->flags.always_flush_batch) brw_context_flush( brw ); return 0; } static void brw_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info) { struct brw_context *brw = brw_context(pipe); int ret; uint32_t hw_prim; hw_prim = brw_set_prim(brw, info->mode); if (BRW_DEBUG & DEBUG_PRIMS) debug_printf("PRIM: %s start %d count %d index_buffer %p\n", u_prim_name(info->mode), info->start, info->count, (void *) brw->curr.index_buffer); assert(info->index_bias == 0); /* Potentially trigger upload of new index buffer range. * XXX: do we really care? */ if (brw->curr.min_index != info->min_index || brw->curr.max_index != info->max_index) { brw->curr.min_index = info->min_index; brw->curr.max_index = info->max_index; brw->state.dirty.mesa |= PIPE_NEW_INDEX_RANGE; } /* Make a first attempt at drawing: */ ret = try_draw_range_elements(brw, info->indexed, hw_prim, info->start, info->count); /* Otherwise, flush and retry: */ if (ret != 0) { brw_context_flush( brw ); ret = try_draw_range_elements(brw, info->indexed, hw_prim, info->start, info->count); assert(ret == 0); } } static void brw_draw_range_elements(struct pipe_context *pipe, struct pipe_resource *index_buffer, unsigned index_size, int index_bias, unsigned min_index, unsigned max_index, unsigned mode, unsigned start, unsigned count) { struct brw_context *brw = brw_context(pipe); struct pipe_draw_info info; struct pipe_index_buffer saved_ib, ib; util_draw_init_info(&info); info.mode = mode; info.start = start; info.count = count; info.index_bias = index_bias; info.min_index = min_index; info.max_index = max_index; if (index_buffer) { info.indexed = TRUE; saved_ib.buffer = brw->curr.index_buffer; saved_ib.offset = brw->curr.index_offset; saved_ib.index_size = brw->curr.index_size; ib.buffer = index_buffer; ib.offset = 0; ib.index_size = index_size; pipe->set_index_buffer(pipe, &ib); } brw_draw_vbo(pipe, &info); if (index_buffer) pipe->set_index_buffer(pipe, &saved_ib); } static void brw_draw_elements(struct pipe_context *pipe, struct pipe_resource *index_buffer, unsigned index_size, int index_bias, unsigned mode, unsigned start, unsigned count) { brw_draw_range_elements( pipe, index_buffer, index_size, index_bias, 0, 0xffffffff, mode, start, count ); } static void brw_draw_arrays(struct pipe_context *pipe, unsigned mode, unsigned start, unsigned count) { brw_draw_elements(pipe, NULL, 0, 0, mode, start, count); } boolean brw_draw_init( struct brw_context *brw ) { /* Register our drawing function: */ brw->base.draw_arrays = brw_draw_arrays; brw->base.draw_elements = brw_draw_elements; brw->base.draw_range_elements = brw_draw_range_elements; brw->base.draw_vbo = brw_draw_vbo; /* Create helpers for uploading data in user buffers: */ brw->vb.upload_vertex = u_upload_create( &brw->base, 128 * 1024, 64, PIPE_BIND_VERTEX_BUFFER ); if (brw->vb.upload_vertex == NULL) return FALSE; brw->vb.upload_index = u_upload_create( &brw->base, 32 * 1024, 64, PIPE_BIND_INDEX_BUFFER ); if (brw->vb.upload_index == NULL) return FALSE; return TRUE; } void brw_draw_cleanup( struct brw_context *brw ) { u_upload_destroy( brw->vb.upload_vertex ); u_upload_destroy( brw->vb.upload_index ); bo_reference(&brw->ib.bo, NULL); }