diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_render.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_render.c | 346 |
1 files changed, 245 insertions, 101 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c index c36350d29e..ee43421cdb 100644 --- a/src/gallium/drivers/r300/r300_render.c +++ b/src/gallium/drivers/r300/r300_render.c @@ -20,6 +20,9 @@ * 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" @@ -38,7 +41,7 @@ /* r300_render: Vertex and index buffer primitive emission. */ #define R300_MAX_VBO_SIZE (1024 * 1024) -static uint32_t r300_translate_primitive(unsigned prim) +uint32_t r300_translate_primitive(unsigned prim) { switch (prim) { case PIPE_PRIM_POINTS: @@ -66,8 +69,146 @@ static uint32_t r300_translate_primitive(unsigned prim) } } +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 void r300_emit_draw_arrays(struct r300_context *r300, + unsigned mode, + unsigned count) +{ + CS_LOCALS(r300); + + BEGIN_CS(8); + OUT_CS_REG(R300_GA_COLOR_CONTROL, + r300_provoking_vertex_fixes(r300, mode)); + OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, 0); + 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) | + r300_translate_primitive(mode)); + END_CS; +} + +static void r300_emit_draw_elements(struct r300_context *r300, + struct pipe_buffer* 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); + CS_LOCALS(r300); + + /* XXX most of these are stupid */ + assert(indexSize == 4 || indexSize == 2); + assert((start * indexSize) % 4 == 0); + assert(offset_dwords == 0); + + BEGIN_CS(14); + OUT_CS_REG(R300_GA_COLOR_CONTROL, + r300_provoking_vertex_fixes(r300, mode)); + OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, minIndex); + OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, maxIndex); + OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0); + if (indexSize == 4) { + count_dwords = count + start; + OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | + R300_VAP_VF_CNTL__INDEX_SIZE_32bit | + r300_translate_primitive(mode)); + } else { + count_dwords = (count + start + 1) / 2; + OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | + r300_translate_primitive(mode)); + } + + /* 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. + * + * XXX Fix 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); + OUT_CS_RELOC(indexBuffer, count_dwords, + RADEON_GEM_DOMAIN_GTT, 0, 0); + + END_CS; +} + + +static boolean r300_setup_vertex_buffers(struct r300_context *r300) +{ + struct pipe_vertex_buffer *vbuf = r300->vertex_buffer; + struct pipe_vertex_element *velem = r300->vertex_element; + +validate: + for (int i = 0; i < r300->vertex_element_count; i++) { + if (!r300->winsys->add_buffer(r300->winsys, + vbuf[velem[i].vertex_buffer_index].buffer, + RADEON_GEM_DOMAIN_GTT, 0)) { + r300->context.flush(&r300->context, 0, NULL); + goto validate; + } + } + + if (!r300->winsys->validate(r300->winsys)) { + r300->context.flush(&r300->context, 0, NULL); + return r300->winsys->validate(r300->winsys); + } + + return TRUE; +} + /* This is the fast-path drawing & emission for HW TCL. */ -boolean r300_draw_range_elements(struct pipe_context* pipe, +void r300_draw_range_elements(struct pipe_context* pipe, struct pipe_buffer* indexBuffer, unsigned indexSize, unsigned minIndex, @@ -77,105 +218,78 @@ boolean r300_draw_range_elements(struct pipe_context* pipe, unsigned count) { struct r300_context* r300 = r300_context(pipe); - uint32_t prim = r300_translate_primitive(mode); - struct pipe_vertex_buffer* aos = r300->vertex_buffers; - unsigned aos_count = r300->vertex_buffer_count; - short* indices; - unsigned packet_size; - unsigned i; - bool invalid = FALSE; - - CS_LOCALS(r300); if (!u_trim_pipe_prim(mode, &count)) { - return FALSE; + return; } -validate: - for (i = 0; i < aos_count; i++) { - if (!r300->winsys->add_buffer(r300->winsys, aos[i].buffer, - RADEON_GEM_DOMAIN_GTT, 0)) { - pipe->flush(pipe, 0, NULL); - goto validate; - } - } - if (!r300->winsys->validate(r300->winsys)) { - pipe->flush(pipe, 0, NULL); - if (invalid) { - /* Well, hell. */ - debug_printf("r300: Stuck in validation loop, gonna quit now."); - exit(1); - } - invalid = TRUE; - goto validate; + if (count > 65535) { + /* XXX: use aux/indices functions to split this into smaller + * primitives. + */ + return; } - r300_emit_dirty_state(r300); + r300_update_derived_state(r300); - packet_size = (aos_count >> 1) * 3 + (aos_count & 1) * 2; - - BEGIN_CS(3 + packet_size + (aos_count * 2)); - OUT_CS_PKT3(R300_PACKET3_3D_LOAD_VBPNTR, packet_size); - OUT_CS(aos_count); - for (i = 0; i < aos_count - 1; i += 2) { - OUT_CS(aos[i].stride | - (aos[i].stride << 8) | - (aos[i + 1].stride << 16) | - (aos[i + 1].stride << 24)); - OUT_CS(aos[i].buffer_offset + start * 4 * aos[i].stride); - OUT_CS(aos[i + 1].buffer_offset + start * 4 * aos[i + 1].stride); + if (!r300_setup_vertex_buffers(r300)) { + return; } - if (aos_count & 1) { - OUT_CS(aos[i].stride | (aos[i].stride << 8)); - OUT_CS(aos[i].buffer_offset + start * 4 * aos[i].stride); - } - for (i = 0; i < aos_count; i++) { - OUT_CS_RELOC(aos[i].buffer, 0, RADEON_GEM_DOMAIN_GTT, 0, 0); + + if (!r300->winsys->add_buffer(r300->winsys, indexBuffer, + RADEON_GEM_DOMAIN_GTT, 0)) { + return; } - END_CS; - if (indexBuffer) { - indices = (short*)pipe_buffer_map(pipe->screen, indexBuffer, - PIPE_BUFFER_USAGE_CPU_READ); + if (!r300->winsys->validate(r300->winsys)) { + return; + } - /* Set the starting point. */ - indices += start; + r300_emit_dirty_state(r300); - BEGIN_CS(2 + (count+1)/2); - OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (count + 1)/2); - OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | prim); - for (i = 0; i < count - 1; i += 2) { - OUT_CS(indices[i + 1] << 16 | indices[i]); - } - if (count % 2) { - OUT_CS(indices[count - 1]); - } - END_CS; - } else { - BEGIN_CS(2); - OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); - OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | - prim); - END_CS; - } + r300_emit_aos(r300, 0); - return TRUE; + r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex, maxIndex, + mode, start, count); } /* Simple helpers for context setup. Should probably be moved to util. */ -boolean r300_draw_elements(struct pipe_context* pipe, - struct pipe_buffer* indexBuffer, - unsigned indexSize, unsigned mode, - unsigned start, unsigned count) +void r300_draw_elements(struct pipe_context* pipe, + struct pipe_buffer* indexBuffer, + unsigned indexSize, unsigned mode, + unsigned start, unsigned count) { - return pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0, - mode, start, count); + pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0, + mode, start, count); } -boolean r300_draw_arrays(struct pipe_context* pipe, unsigned mode, +void r300_draw_arrays(struct pipe_context* pipe, unsigned mode, unsigned start, unsigned count) { - return pipe->draw_elements(pipe, NULL, 0, mode, start, count); + struct r300_context* r300 = r300_context(pipe); + + if (!u_trim_pipe_prim(mode, &count)) { + return; + } + + if (count > 65535) { + /* XXX: driver needs to handle this -- use the functions in + * aux/indices to split this into several smaller primitives. + */ + return; + } + + r300_update_derived_state(r300); + + if (!r300_setup_vertex_buffers(r300)) { + return; + } + + r300_emit_dirty_state(r300); + + r300_emit_aos(r300, start); + + r300_emit_draw_arrays(r300, mode, count); } /**************************************************************************** @@ -183,8 +297,44 @@ boolean r300_draw_arrays(struct pipe_context* pipe, unsigned mode, * keep these functions separated so that they are easier to locate. ~C. * ***************************************************************************/ -/* Draw-based drawing for SW TCL chipsets. */ -boolean r300_swtcl_draw_range_elements(struct pipe_context* pipe, +/* SW TCL arrays, using Draw. */ +void r300_swtcl_draw_arrays(struct pipe_context* pipe, + unsigned mode, + unsigned start, + unsigned count) +{ + struct r300_context* r300 = r300_context(pipe); + int i; + + if (!u_trim_pipe_prim(mode, &count)) { + return; + } + + for (i = 0; i < r300->vertex_buffer_count; i++) { + void* buf = pipe_buffer_map(pipe->screen, + r300->vertex_buffer[i].buffer, + PIPE_BUFFER_USAGE_CPU_READ); + draw_set_mapped_vertex_buffer(r300->draw, i, buf); + } + + draw_set_mapped_element_buffer(r300->draw, 0, NULL); + + draw_set_mapped_constant_buffer(r300->draw, + PIPE_SHADER_VERTEX, + r300->shader_constants[PIPE_SHADER_VERTEX].constants, + r300->shader_constants[PIPE_SHADER_VERTEX].count * + (sizeof(float) * 4)); + + draw_arrays(r300->draw, mode, start, count); + + for (i = 0; i < r300->vertex_buffer_count; i++) { + pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer); + draw_set_mapped_vertex_buffer(r300->draw, i, NULL); + } +} + +/* SW TCL elements, using Draw. */ +void r300_swtcl_draw_range_elements(struct pipe_context* pipe, struct pipe_buffer* indexBuffer, unsigned indexSize, unsigned minIndex, @@ -195,28 +345,26 @@ boolean r300_swtcl_draw_range_elements(struct pipe_context* pipe, { struct r300_context* r300 = r300_context(pipe); int i; + void* indices; if (!u_trim_pipe_prim(mode, &count)) { - return FALSE; + return; } for (i = 0; i < r300->vertex_buffer_count; i++) { void* buf = pipe_buffer_map(pipe->screen, - r300->vertex_buffers[i].buffer, + r300->vertex_buffer[i].buffer, PIPE_BUFFER_USAGE_CPU_READ); draw_set_mapped_vertex_buffer(r300->draw, i, buf); } - if (indexBuffer) { - void* indices = pipe_buffer_map(pipe->screen, indexBuffer, - PIPE_BUFFER_USAGE_CPU_READ); - draw_set_mapped_element_buffer_range(r300->draw, indexSize, - minIndex, maxIndex, indices); - } else { - draw_set_mapped_element_buffer(r300->draw, 0, NULL); - } + indices = pipe_buffer_map(pipe->screen, indexBuffer, + PIPE_BUFFER_USAGE_CPU_READ); + draw_set_mapped_element_buffer_range(r300->draw, indexSize, + minIndex, maxIndex, indices); draw_set_mapped_constant_buffer(r300->draw, + PIPE_SHADER_VERTEX, r300->shader_constants[PIPE_SHADER_VERTEX].constants, r300->shader_constants[PIPE_SHADER_VERTEX].count * (sizeof(float) * 4)); @@ -224,17 +372,13 @@ boolean r300_swtcl_draw_range_elements(struct pipe_context* pipe, draw_arrays(r300->draw, mode, start, count); for (i = 0; i < r300->vertex_buffer_count; i++) { - pipe_buffer_unmap(pipe->screen, r300->vertex_buffers[i].buffer); + pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer); draw_set_mapped_vertex_buffer(r300->draw, i, NULL); } - if (indexBuffer) { - pipe_buffer_unmap(pipe->screen, indexBuffer); - draw_set_mapped_element_buffer_range(r300->draw, 0, start, - start + count - 1, NULL); - } - - return TRUE; + pipe_buffer_unmap(pipe->screen, indexBuffer); + draw_set_mapped_element_buffer_range(r300->draw, 0, start, + start + count - 1, NULL); } /* Object for rendering using Draw. */ @@ -310,7 +454,7 @@ static void* r300_render_map_vertices(struct vbuf_render* render) r300render->vbo_ptr = pipe_buffer_map(screen, r300render->vbo, PIPE_BUFFER_USAGE_CPU_WRITE); - return (r300render->vbo_ptr + r300render->vbo_offset); + return ((uint8_t*)r300render->vbo_ptr + r300render->vbo_offset); } static void r300_render_unmap_vertices(struct vbuf_render* render, |