| /* |
| * Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com> |
| * Copyright 2010 Marek Olšák <maraeo@gmail.com> |
| * |
| * 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 |
| * on 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 |
| * THE AUTHOR(S) AND/OR THEIR 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. */ |
| |
| /* r300_render: Vertex and index buffer primitive emission. Contains both |
| * HW TCL fastpath rendering, and SW TCL Draw-assisted rendering. */ |
| |
| #include "draw/draw_context.h" |
| #include "draw/draw_vbuf.h" |
| |
| #include "util/u_inlines.h" |
| |
| #include "util/u_format.h" |
| #include "util/u_memory.h" |
| #include "util/u_upload_mgr.h" |
| #include "util/u_prim.h" |
| |
| #include "r300_cs.h" |
| #include "r300_cb.h" |
| #include "r300_context.h" |
| #include "r300_screen_buffer.h" |
| #include "r300_emit.h" |
| #include "r300_reg.h" |
| #include "r300_state_derived.h" |
| |
| #include <limits.h> |
| |
| #define IMMD_DWORDS 32 |
| |
| static uint32_t r300_translate_primitive(unsigned prim) |
| { |
| switch (prim) { |
| case PIPE_PRIM_POINTS: |
| return R300_VAP_VF_CNTL__PRIM_POINTS; |
| case PIPE_PRIM_LINES: |
| return R300_VAP_VF_CNTL__PRIM_LINES; |
| case PIPE_PRIM_LINE_LOOP: |
| return R300_VAP_VF_CNTL__PRIM_LINE_LOOP; |
| case PIPE_PRIM_LINE_STRIP: |
| return R300_VAP_VF_CNTL__PRIM_LINE_STRIP; |
| case PIPE_PRIM_TRIANGLES: |
| return R300_VAP_VF_CNTL__PRIM_TRIANGLES; |
| case PIPE_PRIM_TRIANGLE_STRIP: |
| return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP; |
| case PIPE_PRIM_TRIANGLE_FAN: |
| return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN; |
| case PIPE_PRIM_QUADS: |
| return R300_VAP_VF_CNTL__PRIM_QUADS; |
| case PIPE_PRIM_QUAD_STRIP: |
| return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP; |
| case PIPE_PRIM_POLYGON: |
| return R300_VAP_VF_CNTL__PRIM_POLYGON; |
| default: |
| return 0; |
| } |
| } |
| |
| static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300, |
| unsigned mode) |
| { |
| struct r300_rs_state* rs = (struct r300_rs_state*)r300->rs_state.state; |
| uint32_t color_control = rs->color_control; |
| |
| /* By default (see r300_state.c:r300_create_rs_state) color_control is |
| * initialized to provoking the first vertex. |
| * |
| * Triangle fans must be reduced to the second vertex, not the first, in |
| * Gallium flatshade-first mode, as per the GL spec. |
| * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt) |
| * |
| * Quads never provoke correctly in flatshade-first mode. The first |
| * vertex is never considered as provoking, so only the second, third, |
| * and fourth vertices can be selected, and both "third" and "last" modes |
| * select the fourth vertex. This is probably due to D3D lacking quads. |
| * |
| * Similarly, polygons reduce to the first, not the last, vertex, when in |
| * "last" mode, and all other modes start from the second vertex. |
| * |
| * ~ C. |
| */ |
| |
| if (rs->rs.flatshade_first) { |
| switch (mode) { |
| case PIPE_PRIM_TRIANGLE_FAN: |
| color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND; |
| break; |
| case PIPE_PRIM_QUADS: |
| case PIPE_PRIM_QUAD_STRIP: |
| case PIPE_PRIM_POLYGON: |
| color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; |
| break; |
| default: |
| color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST; |
| break; |
| } |
| } else { |
| color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; |
| } |
| |
| return color_control; |
| } |
| |
| static boolean index_bias_supported(struct r300_context *r300) |
| { |
| return r300->screen->caps.is_r500 && |
| r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0); |
| } |
| |
| static void r500_emit_index_bias(struct r300_context *r300, int index_bias) |
| { |
| CS_LOCALS(r300); |
| |
| BEGIN_CS(2); |
| OUT_CS_REG(R500_VAP_INDEX_OFFSET, |
| (index_bias & 0xFFFFFF) | (index_bias < 0 ? 1<<24 : 0)); |
| END_CS; |
| } |
| |
| /* This function splits the index bias value into two parts: |
| * - buffer_offset: the value that can be safely added to buffer offsets |
| * in r300_emit_aos (it must yield a positive offset when added to |
| * a vertex buffer offset) |
| * - index_offset: the value that must be manually subtracted from indices |
| * in an index buffer to achieve negative offsets. */ |
| static void r300_split_index_bias(struct r300_context *r300, int index_bias, |
| int *buffer_offset, int *index_offset) |
| { |
| struct pipe_vertex_buffer *vb, *vbufs = r300->vertex_buffer; |
| struct pipe_vertex_element *velem = r300->velems->velem; |
| unsigned i, size; |
| int max_neg_bias; |
| |
| if (index_bias < 0) { |
| /* See how large index bias we may subtract. We must be careful |
| * here because negative buffer offsets are not allowed |
| * by the DRM API. */ |
| max_neg_bias = INT_MAX; |
| for (i = 0; i < r300->velems->count; i++) { |
| vb = &vbufs[velem[i].vertex_buffer_index]; |
| size = (vb->buffer_offset + velem[i].src_offset) / vb->stride; |
| max_neg_bias = MIN2(max_neg_bias, size); |
| } |
| |
| /* Now set the minimum allowed value. */ |
| *buffer_offset = MAX2(-max_neg_bias, index_bias); |
| } else { |
| /* A positive index bias is OK. */ |
| *buffer_offset = index_bias; |
| } |
| |
| *index_offset = index_bias - *buffer_offset; |
| } |
| |
| enum r300_prepare_flags { |
| PREP_FIRST_DRAW = (1 << 0), /* call emit_dirty_state and friends? */ |
| PREP_VALIDATE_VBOS = (1 << 1), /* validate VBOs? */ |
| PREP_EMIT_AOS = (1 << 2), /* call emit_aos? */ |
| PREP_EMIT_AOS_SWTCL = (1 << 3), /* call emit_aos_swtcl? */ |
| PREP_INDEXED = (1 << 4) /* is this draw_elements? */ |
| }; |
| |
| /** |
| * Check if the requested number of dwords is available in the CS and |
| * if not, flush. Then validate buffers and emit dirty state. |
| * \param r300 The context. |
| * \param flags See r300_prepare_flags. |
| * \param index_buffer The index buffer to validate. The parameter may be NULL. |
| * \param cs_dwords The number of dwords to reserve in CS. |
| * \param aos_offset The offset passed to emit_aos. |
| * \param index_bias The index bias to emit. |
| * \param end_cs_dwords The number of free dwords which must be available |
| * at the end of CS after drawing in case the CS space |
| * management is performed by a draw_* function manually. |
| * The parameter may be NULL. |
| */ |
| static void r300_prepare_for_rendering(struct r300_context *r300, |
| enum r300_prepare_flags flags, |
| struct pipe_resource *index_buffer, |
| unsigned cs_dwords, |
| int aos_offset, |
| int index_bias, |
| unsigned *end_cs_dwords) |
| { |
| unsigned end_dwords = 0; |
| boolean flushed = FALSE; |
| boolean first_draw = flags & PREP_FIRST_DRAW; |
| boolean emit_aos = flags & PREP_EMIT_AOS; |
| boolean emit_aos_swtcl = flags & PREP_EMIT_AOS_SWTCL; |
| boolean indexed = flags & PREP_INDEXED; |
| boolean hw_index_bias = index_bias_supported(r300); |
| |
| /* Add dirty state, index offset, and AOS. */ |
| if (first_draw) { |
| cs_dwords += r300_get_num_dirty_dwords(r300); |
| |
| if (hw_index_bias) |
| cs_dwords += 2; /* emit_index_offset */ |
| |
| if (emit_aos) |
| cs_dwords += 55; /* emit_aos */ |
| |
| if (emit_aos_swtcl) |
| cs_dwords += 7; /* emit_aos_swtcl */ |
| } |
| |
| /* Emitted in flush. */ |
| end_dwords += 26; /* emit_query_end */ |
| |
| cs_dwords += end_dwords; |
| |
| /* Reserve requested CS space. */ |
| if (!r300_check_cs(r300, cs_dwords)) { |
| r300->context.flush(&r300->context, 0, NULL); |
| flushed = TRUE; |
| } |
| |
| /* Validate buffers and emit dirty state if needed. */ |
| if (first_draw || flushed) { |
| r300_emit_buffer_validate(r300, flags & PREP_VALIDATE_VBOS, index_buffer); |
| r300_emit_dirty_state(r300); |
| if (hw_index_bias) { |
| if (r300->screen->caps.has_tcl) |
| r500_emit_index_bias(r300, index_bias); |
| else |
| r500_emit_index_bias(r300, 0); |
| } |
| |
| if (emit_aos) |
| r300_emit_aos(r300, aos_offset, indexed); |
| |
| if (emit_aos_swtcl) |
| r300_emit_aos_swtcl(r300, indexed); |
| } |
| |
| if (end_cs_dwords) |
| *end_cs_dwords = end_dwords; |
| } |
| |
| static boolean immd_is_good_idea(struct r300_context *r300, |
| unsigned count) |
| { |
| struct pipe_vertex_element* velem; |
| struct pipe_vertex_buffer* vbuf; |
| boolean checked[PIPE_MAX_ATTRIBS] = {0}; |
| unsigned vertex_element_count = r300->velems->count; |
| unsigned i, vbi; |
| |
| if (DBG_ON(r300, DBG_NO_IMMD)) { |
| return FALSE; |
| } |
| |
| if (r300->draw) { |
| return FALSE; |
| } |
| |
| if (count * r300->velems->vertex_size_dwords > IMMD_DWORDS) { |
| return FALSE; |
| } |
| |
| /* We shouldn't map buffers referenced by CS, busy buffers, |
| * and ones placed in VRAM. */ |
| /* XXX Check for VRAM buffers. */ |
| for (i = 0; i < vertex_element_count; i++) { |
| velem = &r300->velems->velem[i]; |
| vbi = velem->vertex_buffer_index; |
| |
| if (!checked[vbi]) { |
| vbuf = &r300->vertex_buffer[vbi]; |
| |
| if (r300_buffer_is_referenced(&r300->context, |
| vbuf->buffer, |
| R300_REF_CS | R300_REF_HW)) { |
| /* It's a very bad idea to map it... */ |
| return FALSE; |
| } |
| checked[vbi] = TRUE; |
| } |
| } |
| return TRUE; |
| } |
| |
| /***************************************************************************** |
| * The emission of draw packets for r500. Older GPUs may use these functions * |
| * after resolving fallback issues (e.g. stencil ref two-sided). * |
| ****************************************************************************/ |
| |
| static void r300_emit_draw_arrays_immediate(struct r300_context *r300, |
| unsigned mode, |
| unsigned start, |
| unsigned count) |
| { |
| struct pipe_vertex_element* velem; |
| struct pipe_vertex_buffer* vbuf; |
| unsigned vertex_element_count = r300->velems->count; |
| unsigned i, v, vbi, dwords; |
| |
| /* Size of the vertex, in dwords. */ |
| unsigned vertex_size = r300->velems->vertex_size_dwords; |
| |
| /* Offsets of the attribute, in dwords, from the start of the vertex. */ |
| unsigned offset[PIPE_MAX_ATTRIBS]; |
| |
| /* Size of the vertex element, in dwords. */ |
| unsigned size[PIPE_MAX_ATTRIBS]; |
| |
| /* Stride to the same attrib in the next vertex in the vertex buffer, |
| * in dwords. */ |
| unsigned stride[PIPE_MAX_ATTRIBS] = {0}; |
| |
| /* Mapped vertex buffers. */ |
| uint32_t* map[PIPE_MAX_ATTRIBS] = {0}; |
| struct pipe_transfer* transfer[PIPE_MAX_ATTRIBS] = {NULL}; |
| |
| CB_LOCALS; |
| |
| /* Calculate the vertex size, offsets, strides etc. and map the buffers. */ |
| for (i = 0; i < vertex_element_count; i++) { |
| velem = &r300->velems->velem[i]; |
| offset[i] = velem->src_offset / 4; |
| size[i] = r300->velems->hw_format_size[i] / 4; |
| vbi = velem->vertex_buffer_index; |
| |
| /* Map the buffer. */ |
| if (!map[vbi]) { |
| vbuf = &r300->vertex_buffer[vbi]; |
| map[vbi] = (uint32_t*)pipe_buffer_map(&r300->context, |
| vbuf->buffer, |
| PIPE_TRANSFER_READ, |
| &transfer[vbi]); |
| stride[vbi] = vbuf->stride / 4; |
| map[vbi] += vbuf->buffer_offset / 4 + stride[vbi] * start; |
| } |
| } |
| |
| dwords = 9 + count * vertex_size; |
| |
| r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0, NULL); |
| |
| BEGIN_CS_AS_CB(r300, dwords); |
| OUT_CB_REG(R300_GA_COLOR_CONTROL, |
| r300_provoking_vertex_fixes(r300, mode)); |
| OUT_CB_REG(R300_VAP_VTX_SIZE, vertex_size); |
| OUT_CB_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2); |
| OUT_CB(count - 1); |
| OUT_CB(0); |
| OUT_CB_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, count * vertex_size); |
| OUT_CB(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (count << 16) | |
| r300_translate_primitive(mode)); |
| |
| /* Emit vertices. */ |
| for (v = 0; v < count; v++) { |
| for (i = 0; i < vertex_element_count; i++) { |
| vbi = r300->velems->velem[i].vertex_buffer_index; |
| |
| OUT_CB_TABLE(&map[vbi][offset[i] + stride[vbi] * v], size[i]); |
| } |
| } |
| END_CB; |
| |
| /* Unmap buffers. */ |
| for (i = 0; i < vertex_element_count; i++) { |
| vbi = r300->velems->velem[i].vertex_buffer_index; |
| |
| if (map[vbi]) { |
| vbuf = &r300->vertex_buffer[vbi]; |
| pipe_buffer_unmap(&r300->context, vbuf->buffer, transfer[vbi]); |
| map[vbi] = NULL; |
| } |
| } |
| } |
| |
| static void r300_emit_draw_arrays(struct r300_context *r300, |
| unsigned mode, |
| unsigned count) |
| { |
| boolean alt_num_verts = count > 65535; |
| CS_LOCALS(r300); |
| |
| if (count >= (1 << 24)) { |
| fprintf(stderr, "r300: Got a huge number of vertices: %i, " |
| "refusing to render.\n", count); |
| return; |
| } |
| |
| BEGIN_CS(7 + (alt_num_verts ? 2 : 0)); |
| if (alt_num_verts) { |
| OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count); |
| } |
| OUT_CS_REG(R300_GA_COLOR_CONTROL, |
| r300_provoking_vertex_fixes(r300, mode)); |
| OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2); |
| OUT_CS(count - 1); |
| OUT_CS(0); |
| OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); |
| OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | |
| r300_translate_primitive(mode) | |
| (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); |
| END_CS; |
| } |
| |
| static void r300_emit_draw_elements(struct r300_context *r300, |
| struct pipe_resource* indexBuffer, |
| unsigned indexSize, |
| unsigned minIndex, |
| unsigned maxIndex, |
| unsigned mode, |
| unsigned start, |
| unsigned count) |
| { |
| uint32_t count_dwords; |
| uint32_t offset_dwords = indexSize * start / sizeof(uint32_t); |
| boolean alt_num_verts = count > 65535; |
| CS_LOCALS(r300); |
| |
| if (count >= (1 << 24)) { |
| fprintf(stderr, "r300: Got a huge number of vertices: %i, " |
| "refusing to render.\n", count); |
| return; |
| } |
| |
| maxIndex = MIN2(maxIndex, r300->vertex_buffer_max_index); |
| |
| DBG(r300, DBG_DRAW, "r300: Indexbuf of %u indices, min %u max %u\n", |
| count, minIndex, maxIndex); |
| |
| BEGIN_CS(13 + (alt_num_verts ? 2 : 0)); |
| if (alt_num_verts) { |
| OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count); |
| } |
| OUT_CS_REG(R300_GA_COLOR_CONTROL, |
| r300_provoking_vertex_fixes(r300, mode)); |
| OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2); |
| OUT_CS(maxIndex); |
| OUT_CS(minIndex); |
| OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0); |
| if (indexSize == 4) { |
| count_dwords = count; |
| OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | |
| R300_VAP_VF_CNTL__INDEX_SIZE_32bit | |
| r300_translate_primitive(mode) | |
| (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); |
| } else { |
| count_dwords = (count + 1) / 2; |
| OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | |
| r300_translate_primitive(mode) | |
| (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); |
| } |
| |
| /* INDX_BUFFER is a truly special packet3. |
| * Unlike most other packet3, where the offset is after the count, |
| * the order is reversed, so the relocation ends up carrying the |
| * size of the indexbuf instead of the offset. |
| */ |
| OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2); |
| OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2) | |
| (0 << R300_INDX_BUFFER_SKIP_SHIFT)); |
| OUT_CS(offset_dwords << 2); |
| OUT_CS_BUF_RELOC(indexBuffer, count_dwords, |
| r300_buffer(indexBuffer)->domain, 0, 0); |
| |
| END_CS; |
| } |
| |
| /* This is the fast-path drawing & emission for HW TCL. */ |
| static void r300_draw_range_elements(struct pipe_context* pipe, |
| struct pipe_resource* indexBuffer, |
| unsigned indexSize, |
| int indexBias, |
| unsigned minIndex, |
| unsigned maxIndex, |
| unsigned mode, |
| unsigned start, |
| unsigned count) |
| { |
| struct r300_context* r300 = r300_context(pipe); |
| struct pipe_resource* orgIndexBuffer = indexBuffer; |
| boolean alt_num_verts = r300->screen->caps.is_r500 && |
| count > 65536 && |
| r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0); |
| unsigned short_count; |
| int buffer_offset = 0, index_offset = 0; /* for index bias emulation */ |
| boolean translate = FALSE; |
| |
| if (r300->skip_rendering) { |
| return; |
| } |
| |
| if (!u_trim_pipe_prim(mode, &count)) { |
| return; |
| } |
| |
| /* Index buffer range checking. */ |
| if ((start + count) * indexSize > indexBuffer->width0) { |
| fprintf(stderr, "r300: Invalid index buffer range. Skipping rendering.\n"); |
| return; |
| } |
| |
| /* Set up fallback for incompatible vertex layout if needed. */ |
| if (r300->incompatible_vb_layout || r300->velems->incompatible_layout) { |
| r300_begin_vertex_translate(r300); |
| translate = TRUE; |
| } |
| |
| if (indexBias && !index_bias_supported(r300)) { |
| r300_split_index_bias(r300, indexBias, &buffer_offset, &index_offset); |
| } |
| |
| r300_translate_index_buffer(r300, &indexBuffer, &indexSize, index_offset, |
| &start, count); |
| |
| r300_update_derived_state(r300); |
| r300_upload_index_buffer(r300, &indexBuffer, indexSize, start, count); |
| |
| /* 15 dwords for emit_draw_elements */ |
| r300_prepare_for_rendering(r300, |
| PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED, |
| indexBuffer, 15, buffer_offset, indexBias, NULL); |
| |
| u_upload_flush(r300->upload_vb); |
| u_upload_flush(r300->upload_ib); |
| if (alt_num_verts || count <= 65535) { |
| r300_emit_draw_elements(r300, indexBuffer, indexSize, |
| minIndex, maxIndex, mode, start, count); |
| } else { |
| do { |
| short_count = MIN2(count, 65534); |
| r300_emit_draw_elements(r300, indexBuffer, indexSize, |
| minIndex, maxIndex, |
| mode, start, short_count); |
| |
| start += short_count; |
| count -= short_count; |
| |
| /* 15 dwords for emit_draw_elements */ |
| if (count) { |
| r300_prepare_for_rendering(r300, |
| PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED, |
| indexBuffer, 15, buffer_offset, indexBias, NULL); |
| } |
| } while (count); |
| } |
| |
| if (indexBuffer != orgIndexBuffer) { |
| pipe_resource_reference( &indexBuffer, NULL ); |
| } |
| |
| if (translate) { |
| r300_end_vertex_translate(r300); |
| } |
| } |
| |
| /* Simple helpers for context setup. Should probably be moved to util. */ |
| static void r300_draw_elements(struct pipe_context* pipe, |
| struct pipe_resource* indexBuffer, |
| unsigned indexSize, int indexBias, unsigned mode, |
| unsigned start, unsigned count) |
| { |
| struct r300_context *r300 = r300_context(pipe); |
| |
| pipe->draw_range_elements(pipe, indexBuffer, indexSize, indexBias, |
| 0, r300->vertex_buffer_max_index, |
| mode, start, count); |
| } |
| |
| static void r300_draw_arrays(struct pipe_context* pipe, unsigned mode, |
| unsigned start, unsigned count) |
| { |
| struct r300_context* r300 = r300_context(pipe); |
| boolean alt_num_verts = r300->screen->caps.is_r500 && |
| count > 65536 && |
| r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0); |
| unsigned short_count; |
| boolean translate = FALSE; |
| |
| if (r300->skip_rendering) { |
| return; |
| } |
| |
| if (!u_trim_pipe_prim(mode, &count)) { |
| return; |
| } |
| |
| /* Set up fallback for incompatible vertex layout if needed. */ |
| if (r300->incompatible_vb_layout || r300->velems->incompatible_layout) { |
| r300_begin_vertex_translate(r300); |
| translate = TRUE; |
| } |
| |
| r300_update_derived_state(r300); |
| |
| if (immd_is_good_idea(r300, count)) { |
| r300_emit_draw_arrays_immediate(r300, mode, start, count); |
| } else { |
| /* 9 spare dwords for emit_draw_arrays. */ |
| r300_prepare_for_rendering(r300, PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS, |
| NULL, 9, start, 0, NULL); |
| |
| if (alt_num_verts || count <= 65535) { |
| r300_emit_draw_arrays(r300, mode, count); |
| } else { |
| do { |
| short_count = MIN2(count, 65535); |
| r300_emit_draw_arrays(r300, mode, short_count); |
| |
| start += short_count; |
| count -= short_count; |
| |
| /* 9 spare dwords for emit_draw_arrays. */ |
| if (count) { |
| r300_prepare_for_rendering(r300, |
| PREP_VALIDATE_VBOS | PREP_EMIT_AOS, NULL, 9, |
| start, 0, NULL); |
| } |
| } while (count); |
| } |
| u_upload_flush(r300->upload_vb); |
| } |
| |
| if (translate) { |
| r300_end_vertex_translate(r300); |
| } |
| } |
| |
| /**************************************************************************** |
| * The rest of this file is for SW TCL rendering only. Please be polite and * |
| * keep these functions separated so that they are easier to locate. ~C. * |
| ***************************************************************************/ |
| |
| /* SW TCL arrays, using Draw. */ |
| static void r300_swtcl_draw_arrays(struct pipe_context* pipe, |
| unsigned mode, |
| unsigned start, |
| unsigned count) |
| { |
| struct r300_context* r300 = r300_context(pipe); |
| struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS]; |
| int i; |
| |
| if (r300->skip_rendering) { |
| return; |
| } |
| |
| if (!u_trim_pipe_prim(mode, &count)) { |
| return; |
| } |
| |
| r300_update_derived_state(r300); |
| |
| for (i = 0; i < r300->vertex_buffer_count; i++) { |
| void* buf = pipe_buffer_map(pipe, |
| r300->vertex_buffer[i].buffer, |
| PIPE_TRANSFER_READ, |
| &vb_transfer[i]); |
| draw_set_mapped_vertex_buffer(r300->draw, i, buf); |
| } |
| |
| draw_set_mapped_element_buffer(r300->draw, 0, 0, NULL); |
| |
| draw_arrays(r300->draw, mode, start, count); |
| |
| /* XXX Not sure whether this is the best fix. |
| * It prevents CS from being rejected and weird assertion failures. */ |
| draw_flush(r300->draw); |
| |
| for (i = 0; i < r300->vertex_buffer_count; i++) { |
| pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer, |
| vb_transfer[i]); |
| draw_set_mapped_vertex_buffer(r300->draw, i, NULL); |
| } |
| } |
| |
| /* SW TCL elements, using Draw. */ |
| static void r300_swtcl_draw_range_elements(struct pipe_context* pipe, |
| struct pipe_resource* indexBuffer, |
| unsigned indexSize, |
| int indexBias, |
| unsigned minIndex, |
| unsigned maxIndex, |
| unsigned mode, |
| unsigned start, |
| unsigned count) |
| { |
| struct r300_context* r300 = r300_context(pipe); |
| struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS]; |
| struct pipe_transfer *ib_transfer; |
| int i; |
| void* indices; |
| |
| if (r300->skip_rendering) { |
| return; |
| } |
| |
| if (!u_trim_pipe_prim(mode, &count)) { |
| return; |
| } |
| |
| r300_update_derived_state(r300); |
| |
| for (i = 0; i < r300->vertex_buffer_count; i++) { |
| void* buf = pipe_buffer_map(pipe, |
| r300->vertex_buffer[i].buffer, |
| PIPE_TRANSFER_READ, |
| &vb_transfer[i]); |
| draw_set_mapped_vertex_buffer(r300->draw, i, buf); |
| } |
| |
| indices = pipe_buffer_map(pipe, indexBuffer, |
| PIPE_TRANSFER_READ, &ib_transfer); |
| draw_set_mapped_element_buffer_range(r300->draw, indexSize, indexBias, |
| minIndex, maxIndex, indices); |
| |
| draw_arrays(r300->draw, mode, start, count); |
| |
| /* XXX Not sure whether this is the best fix. |
| * It prevents CS from being rejected and weird assertion failures. */ |
| draw_flush(r300->draw); |
| |
| for (i = 0; i < r300->vertex_buffer_count; i++) { |
| pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer, |
| vb_transfer[i]); |
| draw_set_mapped_vertex_buffer(r300->draw, i, NULL); |
| } |
| |
| pipe_buffer_unmap(pipe, indexBuffer, |
| ib_transfer); |
| draw_set_mapped_element_buffer_range(r300->draw, 0, 0, |
| start, start + count - 1, |
| NULL); |
| } |
| |
| /* Object for rendering using Draw. */ |
| struct r300_render { |
| /* Parent class */ |
| struct vbuf_render base; |
| |
| /* Pipe context */ |
| struct r300_context* r300; |
| |
| /* Vertex information */ |
| size_t vertex_size; |
| unsigned prim; |
| unsigned hwprim; |
| |
| /* VBO */ |
| struct pipe_resource* vbo; |
| size_t vbo_size; |
| size_t vbo_offset; |
| size_t vbo_max_used; |
| void * vbo_ptr; |
| |
| struct pipe_transfer *vbo_transfer; |
| }; |
| |
| static INLINE struct r300_render* |
| r300_render(struct vbuf_render* render) |
| { |
| return (struct r300_render*)render; |
| } |
| |
| static const struct vertex_info* |
| r300_render_get_vertex_info(struct vbuf_render* render) |
| { |
| struct r300_render* r300render = r300_render(render); |
| struct r300_context* r300 = r300render->r300; |
| |
| return &r300->vertex_info; |
| } |
| |
| static boolean r300_render_allocate_vertices(struct vbuf_render* render, |
| ushort vertex_size, |
| ushort count) |
| { |
| struct r300_render* r300render = r300_render(render); |
| struct r300_context* r300 = r300render->r300; |
| struct pipe_screen* screen = r300->context.screen; |
| size_t size = (size_t)vertex_size * (size_t)count; |
| |
| if (size + r300render->vbo_offset > r300render->vbo_size) |
| { |
| pipe_resource_reference(&r300->vbo, NULL); |
| r300render->vbo = pipe_buffer_create(screen, |
| PIPE_BIND_VERTEX_BUFFER, |
| R300_MAX_DRAW_VBO_SIZE); |
| r300render->vbo_offset = 0; |
| r300render->vbo_size = R300_MAX_DRAW_VBO_SIZE; |
| } |
| |
| r300render->vertex_size = vertex_size; |
| r300->vbo = r300render->vbo; |
| r300->vbo_offset = r300render->vbo_offset; |
| |
| return (r300render->vbo) ? TRUE : FALSE; |
| } |
| |
| static void* r300_render_map_vertices(struct vbuf_render* render) |
| { |
| struct r300_render* r300render = r300_render(render); |
| |
| assert(!r300render->vbo_transfer); |
| |
| r300render->vbo_ptr = pipe_buffer_map(&r300render->r300->context, |
| r300render->vbo, |
| PIPE_TRANSFER_WRITE, |
| &r300render->vbo_transfer); |
| |
| return ((uint8_t*)r300render->vbo_ptr + r300render->vbo_offset); |
| } |
| |
| static void r300_render_unmap_vertices(struct vbuf_render* render, |
| ushort min, |
| ushort max) |
| { |
| struct r300_render* r300render = r300_render(render); |
| struct pipe_context* context = &r300render->r300->context; |
| |
| assert(r300render->vbo_transfer); |
| |
| r300render->vbo_max_used = MAX2(r300render->vbo_max_used, |
| r300render->vertex_size * (max + 1)); |
| pipe_buffer_unmap(context, r300render->vbo, r300render->vbo_transfer); |
| |
| r300render->vbo_transfer = NULL; |
| } |
| |
| static void r300_render_release_vertices(struct vbuf_render* render) |
| { |
| struct r300_render* r300render = r300_render(render); |
| |
| r300render->vbo_offset += r300render->vbo_max_used; |
| r300render->vbo_max_used = 0; |
| } |
| |
| static boolean r300_render_set_primitive(struct vbuf_render* render, |
| unsigned prim) |
| { |
| struct r300_render* r300render = r300_render(render); |
| |
| r300render->prim = prim; |
| r300render->hwprim = r300_translate_primitive(prim); |
| |
| return TRUE; |
| } |
| |
| static void r300_render_draw_arrays(struct vbuf_render* render, |
| unsigned start, |
| unsigned count) |
| { |
| struct r300_render* r300render = r300_render(render); |
| struct r300_context* r300 = r300render->r300; |
| uint8_t* ptr; |
| unsigned i; |
| unsigned dwords = 6; |
| |
| CS_LOCALS(r300); |
| |
| (void) i; (void) ptr; |
| |
| r300_prepare_for_rendering(r300, PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL, |
| NULL, dwords, 0, 0, NULL); |
| |
| DBG(r300, DBG_DRAW, "r300: Doing vbuf render, count %d\n", count); |
| |
| /* Uncomment to dump all VBOs rendered through this interface. |
| * Slow and noisy! |
| ptr = pipe_buffer_map(&r300render->r300->context, |
| r300render->vbo, PIPE_TRANSFER_READ, |
| &r300render->vbo_transfer); |
| |
| for (i = 0; i < count; i++) { |
| printf("r300: Vertex %d\n", i); |
| draw_dump_emitted_vertex(&r300->vertex_info, ptr); |
| ptr += r300->vertex_info.size * 4; |
| printf("\n"); |
| } |
| |
| pipe_buffer_unmap(&r300render->r300->context, r300render->vbo, |
| r300render->vbo_transfer); |
| */ |
| |
| BEGIN_CS(dwords); |
| OUT_CS_REG(R300_GA_COLOR_CONTROL, |
| r300_provoking_vertex_fixes(r300, r300render->prim)); |
| OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1); |
| OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); |
| OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | |
| r300render->hwprim); |
| END_CS; |
| } |
| |
| static void r300_render_draw_elements(struct vbuf_render* render, |
| const ushort* indices, |
| uint count) |
| { |
| struct r300_render* r300render = r300_render(render); |
| struct r300_context* r300 = r300render->r300; |
| int i; |
| unsigned end_cs_dwords; |
| unsigned max_index = (r300render->vbo_size - r300render->vbo_offset) / |
| (r300render->r300->vertex_info.size * 4) - 1; |
| unsigned short_count; |
| unsigned free_dwords; |
| |
| CS_LOCALS(r300); |
| |
| /* Reserve at least 256 dwords. |
| * |
| * Below we manage the CS space manually because there may be more |
| * indices than it can fit in CS. */ |
| r300_prepare_for_rendering(r300, |
| PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | PREP_INDEXED, |
| NULL, 256, 0, 0, &end_cs_dwords); |
| |
| while (count) { |
| free_dwords = r300->rws->get_cs_free_dwords(r300->rws); |
| |
| short_count = MIN2(count, (free_dwords - end_cs_dwords - 6) * 2); |
| |
| BEGIN_CS(6 + (short_count+1)/2); |
| OUT_CS_REG(R300_GA_COLOR_CONTROL, |
| r300_provoking_vertex_fixes(r300, r300render->prim)); |
| OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max_index); |
| OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (short_count+1)/2); |
| OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (short_count << 16) | |
| r300render->hwprim); |
| for (i = 0; i < short_count-1; i += 2) { |
| OUT_CS(indices[i+1] << 16 | indices[i]); |
| } |
| if (short_count % 2) { |
| OUT_CS(indices[short_count-1]); |
| } |
| END_CS; |
| |
| /* OK now subtract the emitted indices and see if we need to emit |
| * another draw packet. */ |
| indices += short_count; |
| count -= short_count; |
| |
| if (count) { |
| r300_prepare_for_rendering(r300, |
| PREP_EMIT_AOS_SWTCL | PREP_INDEXED, |
| NULL, 256, 0, 0, &end_cs_dwords); |
| } |
| } |
| } |
| |
| static void r300_render_destroy(struct vbuf_render* render) |
| { |
| FREE(render); |
| } |
| |
| static struct vbuf_render* r300_render_create(struct r300_context* r300) |
| { |
| struct r300_render* r300render = CALLOC_STRUCT(r300_render); |
| |
| r300render->r300 = r300; |
| |
| /* XXX find real numbers plz */ |
| r300render->base.max_vertex_buffer_bytes = 128 * 1024; |
| r300render->base.max_indices = 16 * 1024; |
| |
| r300render->base.get_vertex_info = r300_render_get_vertex_info; |
| r300render->base.allocate_vertices = r300_render_allocate_vertices; |
| r300render->base.map_vertices = r300_render_map_vertices; |
| r300render->base.unmap_vertices = r300_render_unmap_vertices; |
| r300render->base.set_primitive = r300_render_set_primitive; |
| r300render->base.draw_elements = r300_render_draw_elements; |
| r300render->base.draw_arrays = r300_render_draw_arrays; |
| r300render->base.release_vertices = r300_render_release_vertices; |
| r300render->base.destroy = r300_render_destroy; |
| |
| r300render->vbo = NULL; |
| r300render->vbo_size = 0; |
| r300render->vbo_offset = 0; |
| |
| return &r300render->base; |
| } |
| |
| struct draw_stage* r300_draw_stage(struct r300_context* r300) |
| { |
| struct vbuf_render* render; |
| struct draw_stage* stage; |
| |
| render = r300_render_create(r300); |
| |
| if (!render) { |
| return NULL; |
| } |
| |
| stage = draw_vbuf_stage(r300->draw, render); |
| |
| if (!stage) { |
| render->destroy(render); |
| return NULL; |
| } |
| |
| draw_set_render(r300->draw, render); |
| |
| return stage; |
| } |
| |
| /**************************************************************************** |
| * End of SW TCL functions * |
| ***************************************************************************/ |
| |
| static void r300_resource_resolve(struct pipe_context* pipe, |
| struct pipe_resource* dest, |
| struct pipe_subresource subdest, |
| struct pipe_resource* src, |
| struct pipe_subresource subsrc) |
| { |
| struct r300_context* r300 = r300_context(pipe); |
| struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state; |
| struct pipe_surface* srcsurf = src->screen->get_tex_surface(src->screen, |
| src, subsrc.face, subsrc.level, 0, 0); |
| float color[] = {0, 0, 0, 0}; |
| |
| DBG(r300, DBG_DRAW, "r300: Resolving resource...\n"); |
| |
| /* Enable AA resolve. */ |
| aa->dest = r300_surface( |
| dest->screen->get_tex_surface(dest->screen, dest, subdest.face, |
| subdest.level, 0, 0)); |
| |
| aa->aaresolve_ctl = |
| R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE | |
| R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE; |
| r300->aa_state.size = 12; |
| r300->aa_state.dirty = TRUE; |
| |
| /* Resolve the surface. */ |
| r300->context.clear_render_target(pipe, |
| srcsurf, color, 0, 0, src->width0, src->height0); |
| |
| /* Disable AA resolve. */ |
| aa->aaresolve_ctl = 0; |
| r300->aa_state.size = 4; |
| r300->aa_state.dirty = TRUE; |
| |
| pipe_surface_reference((struct pipe_surface**)&srcsurf, NULL); |
| pipe_surface_reference((struct pipe_surface**)&aa->dest, NULL); |
| } |
| |
| void r300_init_render_functions(struct r300_context *r300) |
| { |
| /* Set generic functions. */ |
| r300->context.draw_elements = r300_draw_elements; |
| |
| /* Set draw functions based on presence of HW TCL. */ |
| if (r300->screen->caps.has_tcl) { |
| r300->context.draw_arrays = r300_draw_arrays; |
| r300->context.draw_range_elements = r300_draw_range_elements; |
| } else { |
| r300->context.draw_arrays = r300_swtcl_draw_arrays; |
| r300->context.draw_range_elements = r300_swtcl_draw_range_elements; |
| } |
| |
| r300->context.resource_resolve = r300_resource_resolve; |
| |
| /* Plug in the two-sided stencil reference value fallback if needed. */ |
| if (!r300->screen->caps.is_r500) |
| r300_plug_in_stencil_ref_fallback(r300); |
| } |