diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_render.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_render.c | 432 |
1 files changed, 377 insertions, 55 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c index ca44e0f661..a4ac9ad9a7 100644 --- a/src/gallium/drivers/r300/r300_render.c +++ b/src/gallium/drivers/r300/r300_render.c @@ -20,19 +20,389 @@ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. */ -#include "draw/draw_pipe.h" +/* 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 "pipe/p_inlines.h" + #include "util/u_memory.h" +#include "util/u_prim.h" #include "r300_cs.h" #include "r300_context.h" #include "r300_emit.h" #include "r300_reg.h" +#include "r300_render.h" #include "r300_state_derived.h" /* r300_render: Vertex and index buffer primitive emission. */ #define R300_MAX_VBO_SIZE (1024 * 1024) +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 boolean r300_nothing_to_draw(struct r300_context *r300) +{ + return r300->rs_state->rs.scissor && + r300->scissor_state->scissor.empty_area; +} + +static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300, + unsigned mode) +{ + uint32_t color_control = r300->rs_state->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 (r300->rs_state->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. */ +void r300_draw_range_elements(struct pipe_context* pipe, + struct pipe_buffer* indexBuffer, + unsigned indexSize, + unsigned minIndex, + unsigned maxIndex, + unsigned mode, + unsigned start, + unsigned count) +{ + struct r300_context* r300 = r300_context(pipe); + + if (!u_trim_pipe_prim(mode, &count)) { + return; + } + + if (count > 65535) { + /* XXX: use aux/indices functions to split this into smaller + * primitives. + */ + return; + } + + if (r300_nothing_to_draw(r300)) { + return; + } + + r300_update_derived_state(r300); + + if (!r300_setup_vertex_buffers(r300)) { + return; + } + + if (!r300->winsys->add_buffer(r300->winsys, indexBuffer, + RADEON_GEM_DOMAIN_GTT, 0)) { + return; + } + + if (!r300->winsys->validate(r300->winsys)) { + return; + } + + r300_emit_dirty_state(r300); + + r300_emit_aos(r300, 0); + + r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex, maxIndex, + mode, start, count); +} + +/* Simple helpers for context setup. Should probably be moved to util. */ +void r300_draw_elements(struct pipe_context* pipe, + struct pipe_buffer* indexBuffer, + unsigned indexSize, unsigned mode, + unsigned start, unsigned count) +{ + pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0, + mode, start, count); +} + +void r300_draw_arrays(struct pipe_context* pipe, unsigned mode, + unsigned start, unsigned 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; + } + + if (r300_nothing_to_draw(r300)) { + 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); +} + +/**************************************************************************** + * 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. */ +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; + } + + if (r300_nothing_to_draw(r300)) { + 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, + unsigned maxIndex, + unsigned mode, + unsigned start, + unsigned count) +{ + struct r300_context* r300 = r300_context(pipe); + int i; + void* indices; + + if (!u_trim_pipe_prim(mode, &count)) { + return; + } + + if (r300_nothing_to_draw(r300)) { + 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); + } + + 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)); + + 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); + } + + 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. */ struct r300_render { /* Parent class */ struct vbuf_render base; @@ -67,7 +437,7 @@ r300_render_get_vertex_info(struct vbuf_render* render) r300_update_derived_state(r300); - return &r300->vertex_info.vinfo; + return &r300->vertex_info->vinfo; } static boolean r300_render_allocate_vertices(struct vbuf_render* render, @@ -105,7 +475,7 @@ 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, @@ -127,7 +497,6 @@ static void r300_render_unmap_vertices(struct vbuf_render* render, static void r300_render_release_vertices(struct vbuf_render* render) { struct r300_render* r300render = r300_render(render); - struct r300_context* r300 = r300render->r300; r300render->vbo_offset += r300render->vbo_max_used; r300render->vbo_max_used = 0; @@ -137,56 +506,13 @@ static boolean r300_render_set_primitive(struct vbuf_render* render, unsigned prim) { struct r300_render* r300render = r300_render(render); - r300render->prim = prim; - switch (prim) { - case PIPE_PRIM_POINTS: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_POINTS; - break; - case PIPE_PRIM_LINES: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINES; - break; - case PIPE_PRIM_LINE_LOOP: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINE_LOOP; - break; - case PIPE_PRIM_LINE_STRIP: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINE_STRIP; - break; - case PIPE_PRIM_TRIANGLES: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLES; - break; - case PIPE_PRIM_TRIANGLE_STRIP: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP; - break; - case PIPE_PRIM_TRIANGLE_FAN: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN; - break; - case PIPE_PRIM_QUADS: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_QUADS; - break; - case PIPE_PRIM_QUAD_STRIP: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_QUAD_STRIP; - break; - case PIPE_PRIM_POLYGON: - r300render->hwprim = R300_VAP_VF_CNTL__PRIM_POLYGON; - break; - default: - return FALSE; - break; - } + r300render->prim = prim; + r300render->hwprim = r300_translate_primitive(prim); return TRUE; } -static void r300_prepare_render(struct r300_render* render, unsigned count) -{ - struct r300_context* r300 = render->r300; - - CS_LOCALS(r300); - - r300_emit_dirty_state(r300); -} - static void r300_render_draw_arrays(struct vbuf_render* render, unsigned start, unsigned count) @@ -196,7 +522,7 @@ static void r300_render_draw_arrays(struct vbuf_render* render, CS_LOCALS(r300); - r300_prepare_render(r300render, count); + r300_emit_dirty_state(r300); DBG(r300, DBG_DRAW, "r300: Doing vbuf render, count %d\n", count); @@ -213,15 +539,11 @@ static void r300_render_draw(struct vbuf_render* render, { struct r300_render* r300render = r300_render(render); struct r300_context* r300 = r300render->r300; - struct pipe_screen* screen = r300->context.screen; - struct pipe_buffer* index_buffer; - void* index_map; int i; - uint32_t index; CS_LOCALS(r300); - r300_prepare_render(r300render, count); + r300_emit_dirty_state(r300); BEGIN_CS(2 + (count+1)/2); OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (count+1)/2); |