diff options
Diffstat (limited to 'src/gallium/drivers/nv40/nv40_draw.c')
-rw-r--r-- | src/gallium/drivers/nv40/nv40_draw.c | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv40/nv40_draw.c b/src/gallium/drivers/nv40/nv40_draw.c new file mode 100644 index 0000000000..dd5cc8fc99 --- /dev/null +++ b/src/gallium/drivers/nv40/nv40_draw.c @@ -0,0 +1,346 @@ +#include "pipe/p_util.h" +#include "pipe/p_shader_tokens.h" + +#include "draw/draw_context.h" +#include "draw/draw_vertex.h" +#include "draw/draw_private.h" + +#include "nv40_context.h" +#define NV40_SHADER_NO_FUCKEDNESS +#include "nv40_shader.h" + +/* Simple, but crappy, swtnl path, hopefully we wont need to hit this very + * often at all. Uses "quadro style" vertex submission + a fixed vertex + * layout to avoid the need to generate a vertex program or vtxfmt. + */ + +struct nv40_render_stage { + struct draw_stage stage; + struct nv40_context *nv40; + unsigned prim; +}; + +static INLINE struct nv40_render_stage * +nv40_render_stage(struct draw_stage *stage) +{ + return (struct nv40_render_stage *)stage; +} + +static INLINE void +nv40_render_vertex(struct nv40_context *nv40, const struct vertex_header *v) +{ + unsigned i; + + for (i = 0; i < nv40->swtnl.nr_attribs; i++) { + unsigned idx = nv40->swtnl.draw[i]; + unsigned hw = nv40->swtnl.hw[i]; + + switch (nv40->swtnl.emit[i]) { + case EMIT_OMIT: + break; + case EMIT_1F: + BEGIN_RING(curie, 0x1e40 + (hw * 4), 1); + OUT_RING (fui(v->data[idx][0])); + break; + case EMIT_2F: + BEGIN_RING(curie, NV40TCL_VTX_ATTR_2F_X(hw), 2); + OUT_RING (fui(v->data[idx][0])); + OUT_RING (fui(v->data[idx][1])); + break; + case EMIT_3F: + BEGIN_RING(curie, NV40TCL_VTX_ATTR_3F_X(hw), 3); + OUT_RING (fui(v->data[idx][0])); + OUT_RING (fui(v->data[idx][1])); + OUT_RING (fui(v->data[idx][2])); + break; + case EMIT_4F: + BEGIN_RING(curie, NV40TCL_VTX_ATTR_4F_X(hw), 4); + OUT_RING (fui(v->data[idx][0])); + OUT_RING (fui(v->data[idx][1])); + OUT_RING (fui(v->data[idx][2])); + OUT_RING (fui(v->data[idx][3])); + break; + case EMIT_4UB: + BEGIN_RING(curie, 0x1940 + (hw * 4), 1); + OUT_RING (pack_ub4(float_to_ubyte(v->data[idx][0]), + float_to_ubyte(v->data[idx][1]), + float_to_ubyte(v->data[idx][2]), + float_to_ubyte(v->data[idx][3]))); + break; + default: + assert(0); + break; + } + } +} + +static INLINE void +nv40_render_prim(struct draw_stage *stage, struct prim_header *prim, + unsigned mode, unsigned count) +{ + struct nv40_render_stage *rs = nv40_render_stage(stage); + struct nv40_context *nv40 = rs->nv40; + struct nouveau_pushbuf *pb = nv40->nvws->channel->pushbuf; + unsigned i; + + /* Ensure there's room for 4xfloat32 + potentially 3 begin/end */ + if (pb->remaining < ((count * 20) + 6)) { + if (rs->prim != NV40TCL_BEGIN_END_STOP) { + NOUVEAU_ERR("AIII, missed flush\n"); + assert(0); + } + FIRE_RING(NULL); + nv40_state_emit(nv40); + } + + /* Switch primitive modes if necessary */ + if (rs->prim != mode) { + if (rs->prim != NV40TCL_BEGIN_END_STOP) { + BEGIN_RING(curie, NV40TCL_BEGIN_END, 1); + OUT_RING (NV40TCL_BEGIN_END_STOP); + } + + BEGIN_RING(curie, NV40TCL_BEGIN_END, 1); + OUT_RING (mode); + rs->prim = mode; + } + + /* Emit vertex data */ + for (i = 0; i < count; i++) + nv40_render_vertex(nv40, prim->v[i]); + + /* If it's likely we'll need to empty the push buffer soon, finish + * off the primitive now. + */ + if (pb->remaining < ((count * 20) + 6)) { + BEGIN_RING(curie, NV40TCL_BEGIN_END, 1); + OUT_RING (NV40TCL_BEGIN_END_STOP); + rs->prim = NV40TCL_BEGIN_END_STOP; + } +} + +static void +nv40_render_point(struct draw_stage *draw, struct prim_header *prim) +{ + nv40_render_prim(draw, prim, NV40TCL_BEGIN_END_POINTS, 1); +} + +static void +nv40_render_line(struct draw_stage *draw, struct prim_header *prim) +{ + nv40_render_prim(draw, prim, NV40TCL_BEGIN_END_LINES, 2); +} + +static void +nv40_render_tri(struct draw_stage *draw, struct prim_header *prim) +{ + nv40_render_prim(draw, prim, NV40TCL_BEGIN_END_TRIANGLES, 3); +} + +static void +nv40_render_flush(struct draw_stage *draw, unsigned flags) +{ + struct nv40_render_stage *rs = nv40_render_stage(draw); + struct nv40_context *nv40 = rs->nv40; + + if (rs->prim != NV40TCL_BEGIN_END_STOP) { + BEGIN_RING(curie, NV40TCL_BEGIN_END, 1); + OUT_RING (NV40TCL_BEGIN_END_STOP); + rs->prim = NV40TCL_BEGIN_END_STOP; + } +} + +static void +nv40_render_reset_stipple_counter(struct draw_stage *draw) +{ +} + +static void +nv40_render_destroy(struct draw_stage *draw) +{ + FREE(draw); +} + +static INLINE void +emit_mov(struct nv40_vertex_program *vp, + unsigned dst, unsigned src, unsigned vor, unsigned mask) +{ + struct nv40_vertex_program_exec *inst; + + vp->insns = realloc(vp->insns, + sizeof(struct nv40_vertex_program_exec) * + ++vp->nr_insns); + inst = &vp->insns[vp->nr_insns - 1]; + + inst->data[0] = 0x401f9c6c; + inst->data[1] = 0x0040000d | (src << 8); + inst->data[2] = 0x8106c083; + inst->data[3] = 0x6041ff80 | (dst << 2) | (mask << 13); + inst->const_index = -1; + inst->has_branch_offset = FALSE; + + vp->ir |= (1 << src); + if (vor != ~0) + vp->or |= (1 << vor); +} + +static struct nv40_vertex_program * +create_drawvp(struct nv40_context *nv40) +{ + struct nv40_vertex_program *vp = CALLOC_STRUCT(nv40_vertex_program); + unsigned i; + + emit_mov(vp, NV40_VP_INST_DEST_POS, 0, ~0, 0xf); + emit_mov(vp, NV40_VP_INST_DEST_COL0, 3, 0, 0xf); + emit_mov(vp, NV40_VP_INST_DEST_COL1, 4, 1, 0xf); + emit_mov(vp, NV40_VP_INST_DEST_BFC0, 3, 2, 0xf); + emit_mov(vp, NV40_VP_INST_DEST_BFC1, 4, 3, 0xf); + emit_mov(vp, NV40_VP_INST_DEST_FOGC, 5, 4, 0x8); + for (i = 0; i < 8; i++) + emit_mov(vp, NV40_VP_INST_DEST_TC(i), 8 + i, 14 + i, 0xf); + + vp->insns[vp->nr_insns - 1].data[3] |= 1; + vp->translated = TRUE; + return vp; +} + +struct draw_stage * +nv40_draw_render_stage(struct nv40_context *nv40) +{ + struct nv40_render_stage *render = CALLOC_STRUCT(nv40_render_stage); + + if (!nv40->swtnl.vertprog) + nv40->swtnl.vertprog = create_drawvp(nv40); + + render->nv40 = nv40; + render->stage.draw = nv40->draw; + render->stage.point = nv40_render_point; + render->stage.line = nv40_render_line; + render->stage.tri = nv40_render_tri; + render->stage.flush = nv40_render_flush; + render->stage.reset_stipple_counter = nv40_render_reset_stipple_counter; + render->stage.destroy = nv40_render_destroy; + + return &render->stage; +} + +boolean +nv40_draw_elements_swtnl(struct pipe_context *pipe, + struct pipe_buffer *idxbuf, unsigned idxbuf_size, + unsigned mode, unsigned start, unsigned count) +{ + struct nv40_context *nv40 = nv40_context(pipe); + struct pipe_winsys *ws = pipe->winsys; + unsigned i; + void *map; + + if (!nv40_state_validate_swtnl(nv40)) + return FALSE; + nv40->state.dirty &= ~(1ULL << NV40_STATE_VTXBUF); + nv40_state_emit(nv40); + + for (i = 0; i < nv40->vtxbuf_nr; i++) { + map = ws->buffer_map(ws, nv40->vtxbuf[i].buffer, + PIPE_BUFFER_USAGE_CPU_READ); + draw_set_mapped_vertex_buffer(nv40->draw, i, map); + } + + if (idxbuf) { + map = ws->buffer_map(ws, idxbuf, PIPE_BUFFER_USAGE_CPU_READ); + draw_set_mapped_element_buffer(nv40->draw, idxbuf_size, map); + } else { + draw_set_mapped_element_buffer(nv40->draw, 0, NULL); + } + + if (nv40->constbuf[PIPE_SHADER_VERTEX]) { + map = ws->buffer_map(ws, nv40->constbuf[PIPE_SHADER_VERTEX], + PIPE_BUFFER_USAGE_CPU_READ); + draw_set_mapped_constant_buffer(nv40->draw, map); + } + + draw_arrays(nv40->draw, mode, start, count); + + for (i = 0; i < nv40->vtxbuf_nr; i++) + ws->buffer_unmap(ws, nv40->vtxbuf[i].buffer); + + if (idxbuf) + ws->buffer_unmap(ws, idxbuf); + + if (nv40->constbuf[PIPE_SHADER_VERTEX]) + ws->buffer_unmap(ws, nv40->constbuf[PIPE_SHADER_VERTEX]); + + draw_flush(nv40->draw); + pipe->flush(pipe, 0, NULL); + + return TRUE; +} + +static INLINE void +emit_attrib(struct nv40_context *nv40, unsigned hw, unsigned emit, + unsigned semantic, unsigned index) +{ + unsigned draw_out = draw_find_vs_output(nv40->draw, semantic, index); + unsigned a = nv40->swtnl.nr_attribs++; + + nv40->swtnl.hw[a] = hw; + nv40->swtnl.emit[a] = emit; + nv40->swtnl.draw[a] = draw_out; +} + +static boolean +nv40_state_vtxfmt_validate(struct nv40_context *nv40) +{ + struct nv40_fragment_program *fp = nv40->fragprog; + unsigned colour = 0, texcoords = 0, fog = 0, i; + + /* Determine needed fragprog inputs */ + for (i = 0; i < fp->info.num_inputs; i++) { + switch (fp->info.input_semantic_name[i]) { + case TGSI_SEMANTIC_POSITION: + break; + case TGSI_SEMANTIC_COLOR: + colour |= (1 << fp->info.input_semantic_index[i]); + break; + case TGSI_SEMANTIC_GENERIC: + texcoords |= (1 << fp->info.input_semantic_index[i]); + break; + case TGSI_SEMANTIC_FOG: + fog = 1; + break; + default: + assert(0); + } + } + + nv40->swtnl.nr_attribs = 0; + + /* Map draw vtxprog output to hw attribute IDs */ + for (i = 0; i < 2; i++) { + if (!(colour & (1 << i))) + continue; + emit_attrib(nv40, 3 + i, EMIT_4UB, TGSI_SEMANTIC_COLOR, i); + } + + for (i = 0; i < 8; i++) { + if (!(texcoords & (1 << i))) + continue; + emit_attrib(nv40, 8 + i, EMIT_4F, TGSI_SEMANTIC_GENERIC, i); + } + + if (fog) { + emit_attrib(nv40, 5, EMIT_1F, TGSI_SEMANTIC_FOG, 0); + } + + emit_attrib(nv40, 0, EMIT_3F, TGSI_SEMANTIC_POSITION, 0); + + return FALSE; +} + +struct nv40_state_entry nv40_state_vtxfmt = { + .validate = nv40_state_vtxfmt_validate, + .dirty = { + .pipe = NV40_NEW_ARRAYS | NV40_NEW_FRAGPROG, + .hw = 0 + } +}; + |