diff options
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pipe_wide_prims.c | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_wide_prims.c b/src/gallium/auxiliary/draw/draw_pipe_wide_prims.c deleted file mode 100644 index d6bff110b40..00000000000 --- a/src/gallium/auxiliary/draw/draw_pipe_wide_prims.c +++ /dev/null @@ -1,366 +0,0 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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. - * - **************************************************************************/ - -/* Authors: Keith Whitwell <[email protected]> - */ - -#include "pipe/p_util.h" -#include "pipe/p_defines.h" -#include "pipe/p_shader_tokens.h" -#include "draw_private.h" - - -struct wide_stage { - struct draw_stage stage; - - float half_line_width; - float half_point_size; - - uint texcoord_slot[PIPE_MAX_SHADER_OUTPUTS]; - uint texcoord_mode[PIPE_MAX_SHADER_OUTPUTS]; - uint num_texcoords; - - int psize_slot; -}; - - - -static INLINE struct wide_stage *wide_stage( struct draw_stage *stage ) -{ - return (struct wide_stage *)stage; -} - - -static void passthrough_point( struct draw_stage *stage, - struct prim_header *header ) -{ - stage->next->point( stage->next, header ); -} - -static void passthrough_line( struct draw_stage *stage, - struct prim_header *header ) -{ - stage->next->line(stage->next, header); -} - -static void passthrough_tri( struct draw_stage *stage, - struct prim_header *header ) -{ - stage->next->tri(stage->next, header); -} - - -/** - * Draw a wide line by drawing a quad (two triangles). - * XXX need to disable polygon stipple. - */ -static void wide_line( struct draw_stage *stage, - struct prim_header *header ) -{ - const struct wide_stage *wide = wide_stage(stage); - const float half_width = wide->half_line_width; - - struct prim_header tri; - - struct vertex_header *v0 = dup_vert(stage, header->v[0], 0); - struct vertex_header *v1 = dup_vert(stage, header->v[0], 1); - struct vertex_header *v2 = dup_vert(stage, header->v[1], 2); - struct vertex_header *v3 = dup_vert(stage, header->v[1], 3); - - float *pos0 = v0->data[0]; - float *pos1 = v1->data[0]; - float *pos2 = v2->data[0]; - float *pos3 = v3->data[0]; - - const float dx = FABSF(pos0[0] - pos2[0]); - const float dy = FABSF(pos0[1] - pos2[1]); - - /* - * Draw wide line as a quad (two tris) by "stretching" the line along - * X or Y. - * We need to tweak coords in several ways to be conformant here. - */ - - if (dx > dy) { - /* x-major line */ - pos0[1] = pos0[1] - half_width - 0.25f; - pos1[1] = pos1[1] + half_width - 0.25f; - pos2[1] = pos2[1] - half_width - 0.25f; - pos3[1] = pos3[1] + half_width - 0.25f; - if (pos0[0] < pos2[0]) { - /* left to right line */ - pos0[0] -= 0.5f; - pos1[0] -= 0.5f; - pos2[0] -= 0.5f; - pos3[0] -= 0.5f; - } - else { - /* right to left line */ - pos0[0] += 0.5f; - pos1[0] += 0.5f; - pos2[0] += 0.5f; - pos3[0] += 0.5f; - } - } - else { - /* y-major line */ - pos0[0] = pos0[0] - half_width + 0.25f; - pos1[0] = pos1[0] + half_width + 0.25f; - pos2[0] = pos2[0] - half_width + 0.25f; - pos3[0] = pos3[0] + half_width + 0.25f; - if (pos0[1] < pos2[1]) { - /* top to bottom line */ - pos0[1] -= 0.5f; - pos1[1] -= 0.5f; - pos2[1] -= 0.5f; - pos3[1] -= 0.5f; - } - else { - /* bottom to top line */ - pos0[1] += 0.5f; - pos1[1] += 0.5f; - pos2[1] += 0.5f; - pos3[1] += 0.5f; - } - } - - tri.det = header->det; /* only the sign matters */ - tri.v[0] = v0; - tri.v[1] = v2; - tri.v[2] = v3; - stage->next->tri( stage->next, &tri ); - - tri.v[0] = v0; - tri.v[1] = v3; - tri.v[2] = v1; - stage->next->tri( stage->next, &tri ); -} - - -/** - * Set the vertex texcoords for sprite mode. - * Coords may be left untouched or set to a right-side-up or upside-down - * orientation. - */ -static void set_texcoords(const struct wide_stage *wide, - struct vertex_header *v, const float tc[4]) -{ - uint i; - for (i = 0; i < wide->num_texcoords; i++) { - if (wide->texcoord_mode[i] != PIPE_SPRITE_COORD_NONE) { - uint j = wide->texcoord_slot[i]; - v->data[j][0] = tc[0]; - if (wide->texcoord_mode[i] == PIPE_SPRITE_COORD_LOWER_LEFT) - v->data[j][1] = 1.0f - tc[1]; - else - v->data[j][1] = tc[1]; - v->data[j][2] = tc[2]; - v->data[j][3] = tc[3]; - } - } -} - - -/* If there are lots of sprite points (and why wouldn't there be?) it - * would probably be more sensible to change hardware setup to - * optimize this rather than doing the whole thing in software like - * this. - */ -static void wide_point( struct draw_stage *stage, - struct prim_header *header ) -{ - const struct wide_stage *wide = wide_stage(stage); - const boolean sprite = (boolean) stage->draw->rasterizer->point_sprite; - float half_size; - float left_adj, right_adj; - - struct prim_header tri; - - /* four dups of original vertex */ - struct vertex_header *v0 = dup_vert(stage, header->v[0], 0); - struct vertex_header *v1 = dup_vert(stage, header->v[0], 1); - struct vertex_header *v2 = dup_vert(stage, header->v[0], 2); - struct vertex_header *v3 = dup_vert(stage, header->v[0], 3); - - float *pos0 = v0->data[0]; - float *pos1 = v1->data[0]; - float *pos2 = v2->data[0]; - float *pos3 = v3->data[0]; - - /* point size is either per-vertex or fixed size */ - if (wide->psize_slot >= 0) { - half_size = 0.5f * header->v[0]->data[wide->psize_slot][0]; - } - else { - half_size = wide->half_point_size; - } - - left_adj = -half_size; /* + 0.25f;*/ - right_adj = half_size; /* + 0.25f;*/ - - pos0[0] += left_adj; - pos0[1] -= half_size; - - pos1[0] += left_adj; - pos1[1] += half_size; - - pos2[0] += right_adj; - pos2[1] -= half_size; - - pos3[0] += right_adj; - pos3[1] += half_size; - - if (sprite) { - static const float tex00[4] = { 0, 0, 0, 1 }; - static const float tex01[4] = { 0, 1, 0, 1 }; - static const float tex11[4] = { 1, 1, 0, 1 }; - static const float tex10[4] = { 1, 0, 0, 1 }; - set_texcoords( wide, v0, tex00 ); - set_texcoords( wide, v1, tex01 ); - set_texcoords( wide, v2, tex10 ); - set_texcoords( wide, v3, tex11 ); - } - - tri.det = header->det; /* only the sign matters */ - tri.v[0] = v0; - tri.v[1] = v2; - tri.v[2] = v3; - stage->next->tri( stage->next, &tri ); - - tri.v[0] = v0; - tri.v[1] = v3; - tri.v[2] = v1; - stage->next->tri( stage->next, &tri ); -} - - -static void wide_first_point( struct draw_stage *stage, - struct prim_header *header ) -{ - struct wide_stage *wide = wide_stage(stage); - struct draw_context *draw = stage->draw; - - wide->half_point_size = 0.5f * draw->rasterizer->point_size; - - /* XXX we won't know the real size if it's computed by the vertex shader! */ - if (draw->rasterizer->point_size > draw->wide_point_threshold) { - stage->point = wide_point; - } - else { - stage->point = passthrough_point; - } - - if (draw->rasterizer->point_sprite) { - /* find vertex shader texcoord outputs */ - const struct draw_vertex_shader *vs = draw->vertex_shader; - uint i, j = 0; - for (i = 0; i < vs->info.num_outputs; i++) { - if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_GENERIC) { - wide->texcoord_slot[j] = i; - wide->texcoord_mode[j] = draw->rasterizer->sprite_coord_mode[j]; - j++; - } - } - wide->num_texcoords = j; - } - - wide->psize_slot = -1; - - if (draw->rasterizer->point_size_per_vertex) { - /* find PSIZ vertex output */ - const struct draw_vertex_shader *vs = draw->vertex_shader; - uint i; - for (i = 0; i < vs->info.num_outputs; i++) { - if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_PSIZE) { - wide->psize_slot = i; - break; - } - } - } - - stage->point( stage, header ); -} - - - -static void wide_first_line( struct draw_stage *stage, - struct prim_header *header ) -{ - struct wide_stage *wide = wide_stage(stage); - struct draw_context *draw = stage->draw; - - wide->half_line_width = 0.5f * draw->rasterizer->line_width; - - if (draw->rasterizer->line_width != 1.0) { - wide->stage.line = wide_line; - } - else { - wide->stage.line = passthrough_line; - } - - stage->line( stage, header ); -} - - -static void wide_flush( struct draw_stage *stage, unsigned flags ) -{ - stage->line = wide_first_line; - stage->point = wide_first_point; - stage->next->flush( stage->next, flags ); -} - - -static void wide_reset_stipple_counter( struct draw_stage *stage ) -{ - stage->next->reset_stipple_counter( stage->next ); -} - - -static void wide_destroy( struct draw_stage *stage ) -{ - draw_free_temp_verts( stage ); - FREE( stage ); -} - - -struct draw_stage *draw_wide_stage( struct draw_context *draw ) -{ - struct wide_stage *wide = CALLOC_STRUCT(wide_stage); - - draw_alloc_temp_verts( &wide->stage, 4 ); - - wide->stage.draw = draw; - wide->stage.next = NULL; - wide->stage.point = wide_first_point; - wide->stage.line = wide_first_line; - wide->stage.tri = passthrough_tri; - wide->stage.flush = wide_flush; - wide->stage.reset_stipple_counter = wide_reset_stipple_counter; - wide->stage.destroy = wide_destroy; - - return &wide->stage; -} |