diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_prim_vbuf.c')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_prim_vbuf.c | 563 |
1 files changed, 0 insertions, 563 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_prim_vbuf.c b/src/gallium/drivers/llvmpipe/lp_prim_vbuf.c deleted file mode 100644 index e8e2e2524a..0000000000 --- a/src/gallium/drivers/llvmpipe/lp_prim_vbuf.c +++ /dev/null @@ -1,563 +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. - * - **************************************************************************/ - -/** - * Interface between 'draw' module's output and the llvmpipe rasterizer/setup - * code. When the 'draw' module has finished filling a vertex buffer, the - * draw_arrays() functions below will be called. Loop over the vertices and - * call the point/line/tri setup functions. - * - * Authors - * Brian Paul - */ - - -#include "lp_context.h" -#include "lp_setup.h" -#include "lp_state.h" -#include "lp_prim_vbuf.h" -#include "draw/draw_context.h" -#include "draw/draw_vbuf.h" -#include "util/u_memory.h" -#include "util/u_prim.h" - - -#define LP_MAX_VBUF_INDEXES 1024 -#define LP_MAX_VBUF_SIZE 4096 - -typedef const float (*cptrf4)[4]; - -/** - * Subclass of vbuf_render. - */ -struct llvmpipe_vbuf_render -{ - struct vbuf_render base; - struct llvmpipe_context *llvmpipe; - struct setup_context *setup; - - uint prim; - uint vertex_size; - uint nr_vertices; - uint vertex_buffer_size; - void *vertex_buffer; -}; - - -/** cast wrapper */ -static struct llvmpipe_vbuf_render * -llvmpipe_vbuf_render(struct vbuf_render *vbr) -{ - return (struct llvmpipe_vbuf_render *) vbr; -} - - - - - - - -static const struct vertex_info * -lp_vbuf_get_vertex_info(struct vbuf_render *vbr) -{ - struct llvmpipe_vbuf_render *cvbr = llvmpipe_vbuf_render(vbr); - return llvmpipe_get_vbuf_vertex_info(cvbr->llvmpipe); -} - - -static boolean -lp_vbuf_allocate_vertices(struct vbuf_render *vbr, - ushort vertex_size, ushort nr_vertices) -{ - struct llvmpipe_vbuf_render *cvbr = llvmpipe_vbuf_render(vbr); - unsigned size = vertex_size * nr_vertices; - - if (cvbr->vertex_buffer_size < size) { - align_free(cvbr->vertex_buffer); - cvbr->vertex_buffer = align_malloc(size, 16); - cvbr->vertex_buffer_size = size; - } - - cvbr->vertex_size = vertex_size; - cvbr->nr_vertices = nr_vertices; - - return cvbr->vertex_buffer != NULL; -} - -static void -lp_vbuf_release_vertices(struct vbuf_render *vbr) -{ - /* keep the old allocation for next time */ -} - -static void * -lp_vbuf_map_vertices(struct vbuf_render *vbr) -{ - struct llvmpipe_vbuf_render *cvbr = llvmpipe_vbuf_render(vbr); - return cvbr->vertex_buffer; -} - -static void -lp_vbuf_unmap_vertices(struct vbuf_render *vbr, - ushort min_index, - ushort max_index ) -{ - struct llvmpipe_vbuf_render *cvbr = llvmpipe_vbuf_render(vbr); - assert( cvbr->vertex_buffer_size >= (max_index+1) * cvbr->vertex_size ); - (void) cvbr; - /* do nothing */ -} - - -static boolean -lp_vbuf_set_primitive(struct vbuf_render *vbr, unsigned prim) -{ - struct llvmpipe_vbuf_render *cvbr = llvmpipe_vbuf_render(vbr); - struct setup_context *setup_ctx = cvbr->setup; - - llvmpipe_setup_prepare( setup_ctx ); - - cvbr->llvmpipe->reduced_prim = u_reduced_prim(prim); - cvbr->prim = prim; - return TRUE; - -} - - -static INLINE cptrf4 get_vert( const void *vertex_buffer, - int index, - int stride ) -{ - return (cptrf4)((char *)vertex_buffer + index * stride); -} - - -/** - * draw elements / indexed primitives - */ -static void -lp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr) -{ - struct llvmpipe_vbuf_render *cvbr = llvmpipe_vbuf_render(vbr); - struct llvmpipe_context *llvmpipe = cvbr->llvmpipe; - const unsigned stride = llvmpipe->vertex_info_vbuf.size * sizeof(float); - const void *vertex_buffer = cvbr->vertex_buffer; - struct setup_context *setup_ctx = cvbr->setup; - unsigned i; - - switch (cvbr->prim) { - case PIPE_PRIM_POINTS: - for (i = 0; i < nr; i++) { - llvmpipe_setup_point( setup_ctx, - get_vert(vertex_buffer, indices[i-0], stride) ); - } - break; - - case PIPE_PRIM_LINES: - for (i = 1; i < nr; i += 2) { - llvmpipe_setup_line( setup_ctx, - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } - break; - - case PIPE_PRIM_LINE_STRIP: - for (i = 1; i < nr; i ++) { - llvmpipe_setup_line( setup_ctx, - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } - break; - - case PIPE_PRIM_LINE_LOOP: - for (i = 1; i < nr; i ++) { - llvmpipe_setup_line( setup_ctx, - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } - if (nr) { - llvmpipe_setup_line( setup_ctx, - get_vert(vertex_buffer, indices[nr-1], stride), - get_vert(vertex_buffer, indices[0], stride) ); - } - break; - - case PIPE_PRIM_TRIANGLES: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 2; i < nr; i += 3) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[i-2], stride) ); - } - } - else { - for (i = 2; i < nr; i += 3) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } - } - break; - - case PIPE_PRIM_TRIANGLE_STRIP: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 2; i < nr; i += 1) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i+(i&1)-1], stride), - get_vert(vertex_buffer, indices[i-(i&1)], stride), - get_vert(vertex_buffer, indices[i-2], stride) ); - } - } - else { - for (i = 2; i < nr; i += 1) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i+(i&1)-2], stride), - get_vert(vertex_buffer, indices[i-(i&1)-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } - } - break; - - case PIPE_PRIM_TRIANGLE_FAN: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 2; i < nr; i += 1) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[0], stride), - get_vert(vertex_buffer, indices[i-1], stride) ); - } - } - else { - for (i = 2; i < nr; i += 1) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[0], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } - } - break; - - case PIPE_PRIM_QUADS: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 3; i < nr; i += 4) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-3], stride) ); - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[i-3], stride) ); - } - } - else { - for (i = 3; i < nr; i += 4) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-3], stride), - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } - } - break; - - case PIPE_PRIM_QUAD_STRIP: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 3; i < nr; i += 2) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-3], stride)); - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[i-3], stride) ); - } - } - else { - for (i = 3; i < nr; i += 2) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-3], stride), - get_vert(vertex_buffer, indices[i-2], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[i-3], stride), - get_vert(vertex_buffer, indices[i-0], stride) ); - } - } - break; - - case PIPE_PRIM_POLYGON: - /* Almost same as tri fan but the _first_ vertex specifies the flat - * shading color. Note that the first polygon vertex is passed as - * the last triangle vertex here. - * flatshade_first state makes no difference. - */ - for (i = 2; i < nr; i += 1) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, indices[i-0], stride), - get_vert(vertex_buffer, indices[i-1], stride), - get_vert(vertex_buffer, indices[0], stride) ); - } - break; - - default: - assert(0); - } -} - - -/** - * This function is hit when the draw module is working in pass-through mode. - * It's up to us to convert the vertex array into point/line/tri prims. - */ -static void -lp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) -{ - struct llvmpipe_vbuf_render *cvbr = llvmpipe_vbuf_render(vbr); - struct llvmpipe_context *llvmpipe = cvbr->llvmpipe; - struct setup_context *setup_ctx = cvbr->setup; - const unsigned stride = llvmpipe->vertex_info_vbuf.size * sizeof(float); - const void *vertex_buffer = - (void *) get_vert(cvbr->vertex_buffer, start, stride); - unsigned i; - - switch (cvbr->prim) { - case PIPE_PRIM_POINTS: - for (i = 0; i < nr; i++) { - llvmpipe_setup_point( setup_ctx, - get_vert(vertex_buffer, i-0, stride) ); - } - break; - - case PIPE_PRIM_LINES: - for (i = 1; i < nr; i += 2) { - llvmpipe_setup_line( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride) ); - } - break; - - case PIPE_PRIM_LINE_STRIP: - for (i = 1; i < nr; i ++) { - llvmpipe_setup_line( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride) ); - } - break; - - case PIPE_PRIM_LINE_LOOP: - for (i = 1; i < nr; i ++) { - llvmpipe_setup_line( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride) ); - } - if (nr) { - llvmpipe_setup_line( setup_ctx, - get_vert(vertex_buffer, nr-1, stride), - get_vert(vertex_buffer, 0, stride) ); - } - break; - - case PIPE_PRIM_TRIANGLES: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 2; i < nr; i += 3) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, i-2, stride) ); - } - } - else { - for (i = 2; i < nr; i += 3) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride) ); - } - } - break; - - case PIPE_PRIM_TRIANGLE_STRIP: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 2; i < nr; i++) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i+(i&1)-1, stride), - get_vert(vertex_buffer, i-(i&1), stride), - get_vert(vertex_buffer, i-2, stride) ); - } - } - else { - for (i = 2; i < nr; i++) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i+(i&1)-2, stride), - get_vert(vertex_buffer, i-(i&1)-1, stride), - get_vert(vertex_buffer, i-0, stride) ); - } - } - break; - - case PIPE_PRIM_TRIANGLE_FAN: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 2; i < nr; i += 1) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, 0, stride), - get_vert(vertex_buffer, i-1, stride) ); - } - } - else { - for (i = 2; i < nr; i += 1) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, 0, stride), - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride) ); - } - } - break; - - case PIPE_PRIM_QUADS: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 3; i < nr; i += 4) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-3, stride) ); - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, i-3, stride) ); - } - } - else { - for (i = 3; i < nr; i += 4) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-3, stride), - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-0, stride) ); - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride) ); - } - } - break; - - case PIPE_PRIM_QUAD_STRIP: - if (llvmpipe->rasterizer->flatshade_first) { - for (i = 3; i < nr; i += 2) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-3, stride) ); - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, i-3, stride) ); - } - } - else { - for (i = 3; i < nr; i += 2) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-3, stride), - get_vert(vertex_buffer, i-2, stride), - get_vert(vertex_buffer, i-0, stride) ); - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-3, stride), - get_vert(vertex_buffer, i-0, stride) ); - } - } - break; - - case PIPE_PRIM_POLYGON: - /* Almost same as tri fan but the _first_ vertex specifies the flat - * shading color. Note that the first polygon vertex is passed as - * the last triangle vertex here. - * flatshade_first state makes no difference. - */ - for (i = 2; i < nr; i += 1) { - llvmpipe_setup_tri( setup_ctx, - get_vert(vertex_buffer, i-1, stride), - get_vert(vertex_buffer, i-0, stride), - get_vert(vertex_buffer, 0, stride) ); - } - break; - - default: - assert(0); - } -} - - - -static void -lp_vbuf_destroy(struct vbuf_render *vbr) -{ - struct llvmpipe_vbuf_render *cvbr = llvmpipe_vbuf_render(vbr); - llvmpipe_setup_destroy_context(cvbr->setup); - FREE(cvbr); -} - - -/** - * Create the post-transform vertex handler for the given context. - */ -struct vbuf_render * -lp_create_vbuf_backend(struct llvmpipe_context *lp) -{ - struct llvmpipe_vbuf_render *cvbr = CALLOC_STRUCT(llvmpipe_vbuf_render); - - assert(lp->draw); - - - cvbr->base.max_indices = LP_MAX_VBUF_INDEXES; - cvbr->base.max_vertex_buffer_bytes = LP_MAX_VBUF_SIZE; - - cvbr->base.get_vertex_info = lp_vbuf_get_vertex_info; - cvbr->base.allocate_vertices = lp_vbuf_allocate_vertices; - cvbr->base.map_vertices = lp_vbuf_map_vertices; - cvbr->base.unmap_vertices = lp_vbuf_unmap_vertices; - cvbr->base.set_primitive = lp_vbuf_set_primitive; - cvbr->base.draw = lp_vbuf_draw; - cvbr->base.draw_arrays = lp_vbuf_draw_arrays; - cvbr->base.release_vertices = lp_vbuf_release_vertices; - cvbr->base.destroy = lp_vbuf_destroy; - - cvbr->llvmpipe = lp; - - cvbr->setup = llvmpipe_setup_create_context(cvbr->llvmpipe); - - return &cvbr->base; -} |