diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_render.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_render.c | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c new file mode 100644 index 0000000000..737396d8d9 --- /dev/null +++ b/src/gallium/drivers/r300/r300_render.c @@ -0,0 +1,298 @@ +/* + * Copyright 2009 Corbin Simpson <MostAwesomeDude@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. */ + +#include "draw/draw_pipe.h" +#include "draw/draw_vbuf.h" +#include "util/u_memory.h" + +#include "r300_cs.h" +#include "r300_context.h" +#include "r300_emit.h" +#include "r300_reg.h" +#include "r300_state_derived.h" + +/* r300_render: Vertex and index buffer primitive emission. */ +#define R300_MAX_VBO_SIZE (1024 * 1024) + +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_buffer* vbo; + size_t vbo_size; + size_t vbo_offset; + size_t vbo_max_used; + void * vbo_ptr; +}; + +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; + + r300_update_derived_state(r300); + + return &r300->vertex_info.vinfo; +} + +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) + { + r300render->vbo = pipe_buffer_create(screen, + 64, + PIPE_BUFFER_USAGE_VERTEX, + R300_MAX_VBO_SIZE); + r300render->vbo_size = R300_MAX_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); + struct pipe_screen* screen = r300render->r300->context.screen; + + r300render->vbo_ptr = pipe_buffer_map(screen, r300render->vbo, + PIPE_BUFFER_USAGE_CPU_WRITE); + + return (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_screen* screen = r300render->r300->context.screen; + CS_LOCALS(r300render->r300); + BEGIN_CS(2); + OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max); + END_CS; + + r300render->vbo_max_used = MAX2(r300render->vbo_max_used, + r300render->vertex_size * (max + 1)); + pipe_buffer_unmap(screen, r300render->vbo); +} + +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; + r300->vbo = NULL; +} + +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; + } + + 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) +{ + struct r300_render* r300render = r300_render(render); + struct r300_context* r300 = r300render->r300; + + CS_LOCALS(r300); + + r300_prepare_render(r300render, count); + + DBG(r300, DBG_DRAW, "r300: Doing vbuf render, count %d\n", count); + + 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) | + r300render->hwprim); + END_CS; +} + +static void r300_render_draw(struct vbuf_render* render, + const ushort* indices, + uint count) +{ + 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); + + /* Send our indices into an index buffer. */ + index_buffer = pipe_buffer_create(screen, 64, PIPE_BUFFER_USAGE_VERTEX, + count * 2); + if (!index_buffer) { + return; + } + + 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) | + r300render->hwprim); + 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; +} + +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 = r300_render_draw; + 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; +} |