diff options
Diffstat (limited to 'src/gallium/drivers/nvfx/nvfx_draw.c')
-rw-r--r-- | src/gallium/drivers/nvfx/nvfx_draw.c | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_draw.c b/src/gallium/drivers/nvfx/nvfx_draw.c new file mode 100644 index 0000000000..22cff370b7 --- /dev/null +++ b/src/gallium/drivers/nvfx/nvfx_draw.c @@ -0,0 +1,350 @@ +#include "pipe/p_shader_tokens.h" +#include "util/u_inlines.h" +#include "tgsi/tgsi_ureg.h" + +#include "util/u_pack_color.h" + +#include "draw/draw_context.h" +#include "draw/draw_vertex.h" +#include "draw/draw_pipe.h" + +#include "nvfx_context.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 nvfx_render_stage { + struct draw_stage stage; + struct nvfx_context *nvfx; + unsigned prim; +}; + +static INLINE struct nvfx_render_stage * +nvfx_render_stage(struct draw_stage *stage) +{ + return (struct nvfx_render_stage *)stage; +} + +static INLINE void +nvfx_render_vertex(struct nvfx_context *nvfx, const struct vertex_header *v) +{ + struct nvfx_screen *screen = nvfx->screen; + struct nouveau_channel *chan = screen->base.channel; + struct nouveau_grobj *eng3d = screen->eng3d; + unsigned i; + + for (i = 0; i < nvfx->swtnl.nr_attribs; i++) { + unsigned idx = nvfx->swtnl.draw[i]; + unsigned hw = nvfx->swtnl.hw[i]; + + switch (nvfx->swtnl.emit[i]) { + case EMIT_OMIT: + break; + case EMIT_1F: + BEGIN_RING(chan, eng3d, NV34TCL_VTX_ATTR_1F(hw), 1); + OUT_RING (chan, fui(v->data[idx][0])); + break; + case EMIT_2F: + BEGIN_RING(chan, eng3d, NV34TCL_VTX_ATTR_2F_X(hw), 2); + OUT_RING (chan, fui(v->data[idx][0])); + OUT_RING (chan, fui(v->data[idx][1])); + break; + case EMIT_3F: + BEGIN_RING(chan, eng3d, NV34TCL_VTX_ATTR_3F_X(hw), 3); + OUT_RING (chan, fui(v->data[idx][0])); + OUT_RING (chan, fui(v->data[idx][1])); + OUT_RING (chan, fui(v->data[idx][2])); + break; + case EMIT_4F: + BEGIN_RING(chan, eng3d, NV34TCL_VTX_ATTR_4F_X(hw), 4); + OUT_RING (chan, fui(v->data[idx][0])); + OUT_RING (chan, fui(v->data[idx][1])); + OUT_RING (chan, fui(v->data[idx][2])); + OUT_RING (chan, fui(v->data[idx][3])); + break; + case 0xff: + BEGIN_RING(chan, eng3d, NV34TCL_VTX_ATTR_4F_X(hw), 4); + OUT_RING (chan, fui(v->data[idx][0] / v->data[idx][3])); + OUT_RING (chan, fui(v->data[idx][1] / v->data[idx][3])); + OUT_RING (chan, fui(v->data[idx][2] / v->data[idx][3])); + OUT_RING (chan, fui(1.0f / v->data[idx][3])); + break; + case EMIT_4UB: + BEGIN_RING(chan, eng3d, NV34TCL_VTX_ATTR_4UB(hw), 1); + OUT_RING (chan, 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]))); + case EMIT_4UB_BGRA: + BEGIN_RING(chan, eng3d, NV34TCL_VTX_ATTR_4UB(hw), 1); + OUT_RING (chan, pack_ub4(float_to_ubyte(v->data[idx][2]), + float_to_ubyte(v->data[idx][1]), + float_to_ubyte(v->data[idx][0]), + float_to_ubyte(v->data[idx][3]))); + break; + default: + assert(0); + break; + } + } +} + +static INLINE void +nvfx_render_prim(struct draw_stage *stage, struct prim_header *prim, + unsigned mode, unsigned count) +{ + struct nvfx_render_stage *rs = nvfx_render_stage(stage); + struct nvfx_context *nvfx = rs->nvfx; + + struct nvfx_screen *screen = nvfx->screen; + struct nouveau_channel *chan = screen->base.channel; + struct nouveau_grobj *eng3d = screen->eng3d; + unsigned i; + + /* Ensure there's room for 4xfloat32 + potentially 3 begin/end */ + if (AVAIL_RING(chan) < ((count * 20) + 6)) { + if (rs->prim != NV34TCL_VERTEX_BEGIN_END_STOP) { + NOUVEAU_ERR("AIII, missed flush\n"); + assert(0); + } + FIRE_RING(chan); + nvfx_state_emit(nvfx); + } + + /* Switch primitive modes if necessary */ + if (rs->prim != mode) { + if (rs->prim != NV34TCL_VERTEX_BEGIN_END_STOP) { + BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1); + OUT_RING (chan, NV34TCL_VERTEX_BEGIN_END_STOP); + } + + BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1); + OUT_RING (chan, mode); + rs->prim = mode; + } + + /* Emit vertex data */ + for (i = 0; i < count; i++) + nvfx_render_vertex(nvfx, prim->v[i]); + + /* If it's likely we'll need to empty the push buffer soon, finish + * off the primitive now. + */ + if (AVAIL_RING(chan) < ((count * 20) + 6)) { + BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1); + OUT_RING (chan, NV34TCL_VERTEX_BEGIN_END_STOP); + rs->prim = NV34TCL_VERTEX_BEGIN_END_STOP; + } +} + +static void +nvfx_render_point(struct draw_stage *draw, struct prim_header *prim) +{ + nvfx_render_prim(draw, prim, NV34TCL_VERTEX_BEGIN_END_POINTS, 1); +} + +static void +nvfx_render_line(struct draw_stage *draw, struct prim_header *prim) +{ + nvfx_render_prim(draw, prim, NV34TCL_VERTEX_BEGIN_END_LINES, 2); +} + +static void +nvfx_render_tri(struct draw_stage *draw, struct prim_header *prim) +{ + nvfx_render_prim(draw, prim, NV34TCL_VERTEX_BEGIN_END_TRIANGLES, 3); +} + +static void +nvfx_render_flush(struct draw_stage *draw, unsigned flags) +{ + struct nvfx_render_stage *rs = nvfx_render_stage(draw); + struct nvfx_context *nvfx = rs->nvfx; + struct nvfx_screen *screen = nvfx->screen; + struct nouveau_channel *chan = screen->base.channel; + struct nouveau_grobj *eng3d = screen->eng3d; + + if (rs->prim != NV34TCL_VERTEX_BEGIN_END_STOP) { + BEGIN_RING(chan, eng3d, NV34TCL_VERTEX_BEGIN_END, 1); + OUT_RING (chan, NV34TCL_VERTEX_BEGIN_END_STOP); + rs->prim = NV34TCL_VERTEX_BEGIN_END_STOP; + } +} + +static void +nvfx_render_reset_stipple_counter(struct draw_stage *draw) +{ +} + +static void +nvfx_render_destroy(struct draw_stage *draw) +{ + FREE(draw); +} + +static struct nvfx_vertex_program * +nvfx_create_drawvp(struct nvfx_context *nvfx) +{ + struct ureg_program *ureg; + uint i; + + ureg = ureg_create( TGSI_PROCESSOR_VERTEX ); + if (ureg == NULL) + return NULL; + + ureg_MOV(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0), ureg_DECL_vs_input(ureg, 0)); + ureg_MOV(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 0), ureg_DECL_vs_input(ureg, 3)); + ureg_MOV(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 1), ureg_DECL_vs_input(ureg, 4)); + ureg_MOV(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_BCOLOR, 0), ureg_DECL_vs_input(ureg, 3)); + ureg_MOV(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_BCOLOR, 1), ureg_DECL_vs_input(ureg, 4)); + ureg_MOV(ureg, + ureg_writemask(ureg_DECL_output(ureg, TGSI_SEMANTIC_FOG, 1), TGSI_WRITEMASK_X), + ureg_DECL_vs_input(ureg, 5)); + for (i = 0; i < 8; ++i) + ureg_MOV(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_GENERIC, i), ureg_DECL_vs_input(ureg, 8 + i)); + + ureg_END( ureg ); + + return ureg_create_shader_and_destroy( ureg, &nvfx->pipe ); +} + +struct draw_stage * +nvfx_draw_render_stage(struct nvfx_context *nvfx) +{ + struct nvfx_render_stage *render = CALLOC_STRUCT(nvfx_render_stage); + + if (!nvfx->swtnl.vertprog) + nvfx->swtnl.vertprog = nvfx_create_drawvp(nvfx); + + render->nvfx = nvfx; + render->stage.draw = nvfx->draw; + render->stage.point = nvfx_render_point; + render->stage.line = nvfx_render_line; + render->stage.tri = nvfx_render_tri; + render->stage.flush = nvfx_render_flush; + render->stage.reset_stipple_counter = nvfx_render_reset_stipple_counter; + render->stage.destroy = nvfx_render_destroy; + + return &render->stage; +} + +void +nvfx_draw_elements_swtnl(struct pipe_context *pipe, + struct pipe_resource *idxbuf, + unsigned idxbuf_size, int idxbuf_bias, + unsigned mode, unsigned start, unsigned count) +{ + struct nvfx_context *nvfx = nvfx_context(pipe); + struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS]; + struct pipe_transfer *ib_transfer = NULL; + struct pipe_transfer *cb_transfer = NULL; + unsigned i; + void *map; + + if (!nvfx_state_validate_swtnl(nvfx)) + return; + nvfx_state_emit(nvfx); + + for (i = 0; i < nvfx->vtxbuf_nr; i++) { + map = pipe_buffer_map(pipe, nvfx->vtxbuf[i].buffer, + PIPE_TRANSFER_READ, + &vb_transfer[i]); + draw_set_mapped_vertex_buffer(nvfx->draw, i, map); + } + + if (idxbuf) { + map = pipe_buffer_map(pipe, idxbuf, + PIPE_TRANSFER_READ, + &ib_transfer); + draw_set_mapped_element_buffer(nvfx->draw, idxbuf_size, idxbuf_bias, map); + } else { + draw_set_mapped_element_buffer(nvfx->draw, 0, 0, NULL); + } + + if (nvfx->constbuf[PIPE_SHADER_VERTEX]) { + const unsigned nr = nvfx->constbuf_nr[PIPE_SHADER_VERTEX]; + + map = pipe_buffer_map(pipe, + nvfx->constbuf[PIPE_SHADER_VERTEX], + PIPE_TRANSFER_READ, + &cb_transfer); + draw_set_mapped_constant_buffer(nvfx->draw, PIPE_SHADER_VERTEX, 0, + map, nr); + } + + draw_arrays(nvfx->draw, mode, start, count); + + for (i = 0; i < nvfx->vtxbuf_nr; i++) + pipe_buffer_unmap(pipe, nvfx->vtxbuf[i].buffer, vb_transfer[i]); + + if (idxbuf) + pipe_buffer_unmap(pipe, idxbuf, ib_transfer); + + if (nvfx->constbuf[PIPE_SHADER_VERTEX]) + pipe_buffer_unmap(pipe, nvfx->constbuf[PIPE_SHADER_VERTEX], + cb_transfer); + + draw_flush(nvfx->draw); + pipe->flush(pipe, 0, NULL); +} + +static INLINE void +emit_attrib(struct nvfx_context *nvfx, unsigned hw, unsigned emit, + unsigned semantic, unsigned index) +{ + unsigned draw_out = draw_find_shader_output(nvfx->draw, semantic, index); + unsigned a = nvfx->swtnl.nr_attribs++; + + nvfx->swtnl.hw[a] = hw; + nvfx->swtnl.emit[a] = emit; + nvfx->swtnl.draw[a] = draw_out; +} + +void +nvfx_vtxfmt_validate(struct nvfx_context *nvfx) +{ + struct nvfx_fragment_program *fp = nvfx->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); + } + } + + nvfx->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(nvfx, 3 + i, EMIT_4F, TGSI_SEMANTIC_COLOR, i); + } + + for (i = 0; i < 8; i++) { + if (!(texcoords & (1 << i))) + continue; + emit_attrib(nvfx, 8 + i, EMIT_4F, TGSI_SEMANTIC_GENERIC, i); + } + + if (fog) { + emit_attrib(nvfx, 5, EMIT_1F, TGSI_SEMANTIC_FOG, 0); + } + + emit_attrib(nvfx, 0, 0xff, TGSI_SEMANTIC_POSITION, 0); +} |