diff options
Diffstat (limited to 'mesalib/src/mesa/tnl/t_vertex.c')
| -rw-r--r-- | mesalib/src/mesa/tnl/t_vertex.c | 1128 |
1 files changed, 564 insertions, 564 deletions
diff --git a/mesalib/src/mesa/tnl/t_vertex.c b/mesalib/src/mesa/tnl/t_vertex.c index 0ca324402..6582949a0 100644 --- a/mesalib/src/mesa/tnl/t_vertex.c +++ b/mesalib/src/mesa/tnl/t_vertex.c @@ -1,564 +1,564 @@ -/*
- * Copyright 2003 Tungsten Graphics, inc.
- * 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
- * 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
- * TUNGSTEN GRAPHICS 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.
- *
- * Authors:
- * Keith Whitwell <keithw@tungstengraphics.com>
- */
-
-#include "main/glheader.h"
-#include "main/context.h"
-#include "main/colormac.h"
-
-#include "t_context.h"
-#include "t_vertex.h"
-
-#define DBG 0
-
-/* Build and manage clipspace/ndc/window vertices.
- */
-
-static GLboolean match_fastpath( struct tnl_clipspace *vtx,
- const struct tnl_clipspace_fastpath *fp)
-{
- GLuint j;
-
- if (vtx->attr_count != fp->attr_count)
- return GL_FALSE;
-
- for (j = 0; j < vtx->attr_count; j++)
- if (vtx->attr[j].format != fp->attr[j].format ||
- vtx->attr[j].inputsize != fp->attr[j].size ||
- vtx->attr[j].vertoffset != fp->attr[j].offset)
- return GL_FALSE;
-
- if (fp->match_strides) {
- if (vtx->vertex_size != fp->vertex_size)
- return GL_FALSE;
-
- for (j = 0; j < vtx->attr_count; j++)
- if (vtx->attr[j].inputstride != fp->attr[j].stride)
- return GL_FALSE;
- }
-
- return GL_TRUE;
-}
-
-static GLboolean search_fastpath_emit( struct tnl_clipspace *vtx )
-{
- struct tnl_clipspace_fastpath *fp = vtx->fastpath;
-
- for ( ; fp ; fp = fp->next) {
- if (match_fastpath(vtx, fp)) {
- vtx->emit = fp->func;
- return GL_TRUE;
- }
- }
-
- return GL_FALSE;
-}
-
-void _tnl_register_fastpath( struct tnl_clipspace *vtx,
- GLboolean match_strides )
-{
- struct tnl_clipspace_fastpath *fastpath = CALLOC_STRUCT(tnl_clipspace_fastpath);
- GLuint i;
-
- fastpath->vertex_size = vtx->vertex_size;
- fastpath->attr_count = vtx->attr_count;
- fastpath->match_strides = match_strides;
- fastpath->func = vtx->emit;
- fastpath->attr = (struct tnl_attr_type *)
- malloc(vtx->attr_count * sizeof(fastpath->attr[0]));
-
- for (i = 0; i < vtx->attr_count; i++) {
- fastpath->attr[i].format = vtx->attr[i].format;
- fastpath->attr[i].stride = vtx->attr[i].inputstride;
- fastpath->attr[i].size = vtx->attr[i].inputsize;
- fastpath->attr[i].offset = vtx->attr[i].vertoffset;
- }
-
- fastpath->next = vtx->fastpath;
- vtx->fastpath = fastpath;
-}
-
-
-
-/***********************************************************************
- * Build codegen functions or return generic ones:
- */
-static void choose_emit_func( struct gl_context *ctx, GLuint count, GLubyte *dest)
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- struct tnl_clipspace_attr *a = vtx->attr;
- const GLuint attr_count = vtx->attr_count;
- GLuint j;
-
- for (j = 0; j < attr_count; j++) {
- GLvector4f *vptr = VB->AttribPtr[a[j].attrib];
- a[j].inputstride = vptr->stride;
- a[j].inputsize = vptr->size;
- a[j].emit = a[j].insert[vptr->size - 1]; /* not always used */
- }
-
- vtx->emit = NULL;
-
- /* Does this match an existing (hardwired, codegen or known-bad)
- * fastpath?
- */
- if (search_fastpath_emit(vtx)) {
- /* Use this result. If it is null, then it is already known
- * that the current state will fail for codegen and there is no
- * point trying again.
- */
- }
- else if (vtx->codegen_emit) {
- vtx->codegen_emit(ctx);
- }
-
- if (!vtx->emit) {
- _tnl_generate_hardwired_emit(ctx);
- }
-
- /* Otherwise use the generic version:
- */
- if (!vtx->emit)
- vtx->emit = _tnl_generic_emit;
-
- vtx->emit( ctx, count, dest );
-}
-
-
-
-static void choose_interp_func( struct gl_context *ctx,
- GLfloat t,
- GLuint edst, GLuint eout, GLuint ein,
- GLboolean force_boundary )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
- if (vtx->need_extras &&
- (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
- vtx->interp = _tnl_generic_interp_extras;
- } else {
- vtx->interp = _tnl_generic_interp;
- }
-
- vtx->interp( ctx, t, edst, eout, ein, force_boundary );
-}
-
-
-static void choose_copy_pv_func( struct gl_context *ctx, GLuint edst, GLuint esrc )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
- if (vtx->need_extras &&
- (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
- vtx->copy_pv = _tnl_generic_copy_pv_extras;
- } else {
- vtx->copy_pv = _tnl_generic_copy_pv;
- }
-
- vtx->copy_pv( ctx, edst, esrc );
-}
-
-
-/***********************************************************************
- * Public entrypoints, mostly dispatch to the above:
- */
-
-
-/* Interpolate between two vertices to produce a third:
- */
-void _tnl_interp( struct gl_context *ctx,
- GLfloat t,
- GLuint edst, GLuint eout, GLuint ein,
- GLboolean force_boundary )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- vtx->interp( ctx, t, edst, eout, ein, force_boundary );
-}
-
-/* Copy colors from one vertex to another:
- */
-void _tnl_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- vtx->copy_pv( ctx, edst, esrc );
-}
-
-
-/* Extract a named attribute from a hardware vertex. Will have to
- * reverse any viewport transformation, swizzling or other conversions
- * which may have been applied:
- */
-void _tnl_get_attr( struct gl_context *ctx, const void *vin,
- GLenum attr, GLfloat *dest )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- const struct tnl_clipspace_attr *a = vtx->attr;
- const GLuint attr_count = vtx->attr_count;
- GLuint j;
-
- for (j = 0; j < attr_count; j++) {
- if (a[j].attrib == attr) {
- a[j].extract( &a[j], dest, (GLubyte *)vin + a[j].vertoffset );
- return;
- }
- }
-
- /* Else return the value from ctx->Current.
- */
- if (attr == _TNL_ATTRIB_POINTSIZE) {
- /* If the hardware vertex doesn't have point size then use size from
- * struct gl_context. XXX this will be wrong if drawing attenuated points!
- */
- dest[0] = ctx->Point.Size;
- }
- else {
- memcpy( dest, ctx->Current.Attrib[attr], 4*sizeof(GLfloat));
- }
-}
-
-
-/* Complementary operation to the above.
- */
-void _tnl_set_attr( struct gl_context *ctx, void *vout,
- GLenum attr, const GLfloat *src )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- const struct tnl_clipspace_attr *a = vtx->attr;
- const GLuint attr_count = vtx->attr_count;
- GLuint j;
-
- for (j = 0; j < attr_count; j++) {
- if (a[j].attrib == attr) {
- a[j].insert[4-1]( &a[j], (GLubyte *)vout + a[j].vertoffset, src );
- return;
- }
- }
-}
-
-
-void *_tnl_get_vertex( struct gl_context *ctx, GLuint nr )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
- return vtx->vertex_buf + nr * vtx->vertex_size;
-}
-
-void _tnl_invalidate_vertex_state( struct gl_context *ctx, GLuint new_state )
-{
- if (new_state & (_DD_NEW_TRI_LIGHT_TWOSIDE|_DD_NEW_TRI_UNFILLED) ) {
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- vtx->new_inputs = ~0;
- vtx->interp = choose_interp_func;
- vtx->copy_pv = choose_copy_pv_func;
- }
-}
-
-static void invalidate_funcs( struct tnl_clipspace *vtx )
-{
- vtx->emit = choose_emit_func;
- vtx->interp = choose_interp_func;
- vtx->copy_pv = choose_copy_pv_func;
- vtx->new_inputs = ~0;
-}
-
-GLuint _tnl_install_attrs( struct gl_context *ctx, const struct tnl_attr_map *map,
- GLuint nr, const GLfloat *vp,
- GLuint unpacked_size )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- GLuint offset = 0;
- GLuint i, j;
-
- assert(nr < _TNL_ATTRIB_MAX);
- assert(nr == 0 || map[0].attrib == VERT_ATTRIB_POS);
-
- vtx->new_inputs = ~0;
- vtx->need_viewport = GL_FALSE;
-
- if (vp) {
- vtx->need_viewport = GL_TRUE;
- }
-
- for (j = 0, i = 0; i < nr; i++) {
- const GLuint format = map[i].format;
- if (format == EMIT_PAD) {
- if (DBG)
- printf("%d: pad %d, offset %d\n", i,
- map[i].offset, offset);
-
- offset += map[i].offset;
-
- }
- else {
- GLuint tmpoffset;
-
- if (unpacked_size)
- tmpoffset = map[i].offset;
- else
- tmpoffset = offset;
-
- if (vtx->attr_count != j ||
- vtx->attr[j].attrib != map[i].attrib ||
- vtx->attr[j].format != format ||
- vtx->attr[j].vertoffset != tmpoffset) {
- invalidate_funcs(vtx);
-
- vtx->attr[j].attrib = map[i].attrib;
- vtx->attr[j].format = format;
- vtx->attr[j].vp = vp;
- vtx->attr[j].insert = _tnl_format_info[format].insert;
- vtx->attr[j].extract = _tnl_format_info[format].extract;
- vtx->attr[j].vertattrsize = _tnl_format_info[format].attrsize;
- vtx->attr[j].vertoffset = tmpoffset;
- }
-
-
- if (DBG)
- printf("%d: %s, vp %p, offset %d\n", i,
- _tnl_format_info[format].name, (void *)vp,
- vtx->attr[j].vertoffset);
-
- offset += _tnl_format_info[format].attrsize;
- j++;
- }
- }
-
- vtx->attr_count = j;
-
- if (unpacked_size)
- vtx->vertex_size = unpacked_size;
- else
- vtx->vertex_size = offset;
-
- assert(vtx->vertex_size <= vtx->max_vertex_size);
- return vtx->vertex_size;
-}
-
-
-
-void _tnl_invalidate_vertices( struct gl_context *ctx, GLuint newinputs )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- vtx->new_inputs |= newinputs;
-}
-
-
-/* This event has broader use beyond this file - will move elsewhere
- * and probably invoke a driver callback.
- */
-void _tnl_notify_pipeline_output_change( struct gl_context *ctx )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- invalidate_funcs(vtx);
-}
-
-
-static void adjust_input_ptrs( struct gl_context *ctx, GLint diff)
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- struct tnl_clipspace_attr *a = vtx->attr;
- const GLuint count = vtx->attr_count;
- GLuint j;
-
- diff -= 1;
- for (j=0; j<count; ++j) {
- register GLvector4f *vptr = VB->AttribPtr[a->attrib];
- (a++)->inputptr += diff*vptr->stride;
- }
-}
-
-static void update_input_ptrs( struct gl_context *ctx, GLuint start )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- struct tnl_clipspace_attr *a = vtx->attr;
- const GLuint count = vtx->attr_count;
- GLuint j;
-
- for (j = 0; j < count; j++) {
- GLvector4f *vptr = VB->AttribPtr[a[j].attrib];
-
- if (vtx->emit != choose_emit_func) {
- assert(a[j].inputstride == vptr->stride);
- assert(a[j].inputsize == vptr->size);
- }
-
- a[j].inputptr = ((GLubyte *)vptr->data) + start * vptr->stride;
- }
-
- if (a->vp) {
- vtx->vp_scale[0] = a->vp[MAT_SX];
- vtx->vp_scale[1] = a->vp[MAT_SY];
- vtx->vp_scale[2] = a->vp[MAT_SZ];
- vtx->vp_scale[3] = 1.0;
- vtx->vp_xlate[0] = a->vp[MAT_TX];
- vtx->vp_xlate[1] = a->vp[MAT_TY];
- vtx->vp_xlate[2] = a->vp[MAT_TZ];
- vtx->vp_xlate[3] = 0.0;
- }
-}
-
-
-void _tnl_build_vertices( struct gl_context *ctx,
- GLuint start,
- GLuint end,
- GLuint newinputs )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- update_input_ptrs( ctx, start );
- vtx->emit( ctx, end - start,
- (GLubyte *)(vtx->vertex_buf +
- start * vtx->vertex_size));
-}
-
-/* Emit VB vertices start..end to dest. Note that VB vertex at
- * postion start will be emitted to dest at position zero.
- */
-void *_tnl_emit_vertices_to_buffer( struct gl_context *ctx,
- GLuint start,
- GLuint end,
- void *dest )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
- update_input_ptrs(ctx, start);
- /* Note: dest should not be adjusted for non-zero 'start' values:
- */
- vtx->emit( ctx, end - start, (GLubyte*) dest );
- return (void *)((GLubyte *)dest + vtx->vertex_size * (end - start));
-}
-
-/* Emit indexed VB vertices start..end to dest. Note that VB vertex at
- * postion start will be emitted to dest at position zero.
- */
-
-void *_tnl_emit_indexed_vertices_to_buffer( struct gl_context *ctx,
- const GLuint *elts,
- GLuint start,
- GLuint end,
- void *dest )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- GLuint oldIndex;
- GLubyte *cdest = dest;
-
- update_input_ptrs(ctx, oldIndex = elts[start++]);
- vtx->emit( ctx, 1, cdest );
- cdest += vtx->vertex_size;
-
- for (; start < end; ++start) {
- adjust_input_ptrs(ctx, elts[start] - oldIndex);
- oldIndex = elts[start];
- vtx->emit( ctx, 1, cdest);
- cdest += vtx->vertex_size;
- }
-
- return (void *) cdest;
-}
-
-
-void _tnl_init_vertices( struct gl_context *ctx,
- GLuint vb_size,
- GLuint max_vertex_size )
-{
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
-
- _tnl_install_attrs( ctx, NULL, 0, NULL, 0 );
-
- vtx->need_extras = GL_TRUE;
- if (max_vertex_size > vtx->max_vertex_size) {
- _tnl_free_vertices( ctx );
- vtx->max_vertex_size = max_vertex_size;
- vtx->vertex_buf = (GLubyte *)_mesa_align_calloc(vb_size * max_vertex_size, 32 );
- invalidate_funcs(vtx);
- }
-
- switch(CHAN_TYPE) {
- case GL_UNSIGNED_BYTE:
- vtx->chan_scale[0] = 255.0;
- vtx->chan_scale[1] = 255.0;
- vtx->chan_scale[2] = 255.0;
- vtx->chan_scale[3] = 255.0;
- break;
- case GL_UNSIGNED_SHORT:
- vtx->chan_scale[0] = 65535.0;
- vtx->chan_scale[1] = 65535.0;
- vtx->chan_scale[2] = 65535.0;
- vtx->chan_scale[3] = 65535.0;
- break;
- default:
- vtx->chan_scale[0] = 1.0;
- vtx->chan_scale[1] = 1.0;
- vtx->chan_scale[2] = 1.0;
- vtx->chan_scale[3] = 1.0;
- break;
- }
-
- vtx->identity[0] = 0.0;
- vtx->identity[1] = 0.0;
- vtx->identity[2] = 0.0;
- vtx->identity[3] = 1.0;
-
- vtx->codegen_emit = NULL;
-
-#ifdef USE_SSE_ASM
- if (!_mesa_getenv("MESA_NO_CODEGEN"))
- vtx->codegen_emit = _tnl_generate_sse_emit;
-#endif
-}
-
-
-void _tnl_free_vertices( struct gl_context *ctx )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- if (tnl) {
- struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
- struct tnl_clipspace_fastpath *fp, *tmp;
-
- if (vtx->vertex_buf) {
- _mesa_align_free(vtx->vertex_buf);
- vtx->vertex_buf = NULL;
- }
-
- for (fp = vtx->fastpath ; fp ; fp = tmp) {
- tmp = fp->next;
- FREE(fp->attr);
-
- /* KW: At the moment, fp->func is constrained to be allocated by
- * _mesa_exec_alloc(), as the hardwired fastpaths in
- * t_vertex_generic.c are handled specially. It would be nice
- * to unify them, but this probably won't change until this
- * module gets another overhaul.
- */
- _mesa_exec_free((void *) fp->func);
- FREE(fp);
- }
-
- vtx->fastpath = NULL;
- }
-}
+/* + * Copyright 2003 Tungsten Graphics, inc. + * 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 + * 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 + * TUNGSTEN GRAPHICS 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. + * + * Authors: + * Keith Whitwell <keithw@tungstengraphics.com> + */ + +#include "main/glheader.h" +#include "main/context.h" +#include "main/colormac.h" +#include "swrast/s_chan.h" +#include "t_context.h" +#include "t_vertex.h" + +#define DBG 0 + +/* Build and manage clipspace/ndc/window vertices. + */ + +static GLboolean match_fastpath( struct tnl_clipspace *vtx, + const struct tnl_clipspace_fastpath *fp) +{ + GLuint j; + + if (vtx->attr_count != fp->attr_count) + return GL_FALSE; + + for (j = 0; j < vtx->attr_count; j++) + if (vtx->attr[j].format != fp->attr[j].format || + vtx->attr[j].inputsize != fp->attr[j].size || + vtx->attr[j].vertoffset != fp->attr[j].offset) + return GL_FALSE; + + if (fp->match_strides) { + if (vtx->vertex_size != fp->vertex_size) + return GL_FALSE; + + for (j = 0; j < vtx->attr_count; j++) + if (vtx->attr[j].inputstride != fp->attr[j].stride) + return GL_FALSE; + } + + return GL_TRUE; +} + +static GLboolean search_fastpath_emit( struct tnl_clipspace *vtx ) +{ + struct tnl_clipspace_fastpath *fp = vtx->fastpath; + + for ( ; fp ; fp = fp->next) { + if (match_fastpath(vtx, fp)) { + vtx->emit = fp->func; + return GL_TRUE; + } + } + + return GL_FALSE; +} + +void _tnl_register_fastpath( struct tnl_clipspace *vtx, + GLboolean match_strides ) +{ + struct tnl_clipspace_fastpath *fastpath = CALLOC_STRUCT(tnl_clipspace_fastpath); + GLuint i; + + fastpath->vertex_size = vtx->vertex_size; + fastpath->attr_count = vtx->attr_count; + fastpath->match_strides = match_strides; + fastpath->func = vtx->emit; + fastpath->attr = (struct tnl_attr_type *) + malloc(vtx->attr_count * sizeof(fastpath->attr[0])); + + for (i = 0; i < vtx->attr_count; i++) { + fastpath->attr[i].format = vtx->attr[i].format; + fastpath->attr[i].stride = vtx->attr[i].inputstride; + fastpath->attr[i].size = vtx->attr[i].inputsize; + fastpath->attr[i].offset = vtx->attr[i].vertoffset; + } + + fastpath->next = vtx->fastpath; + vtx->fastpath = fastpath; +} + + + +/*********************************************************************** + * Build codegen functions or return generic ones: + */ +static void choose_emit_func( struct gl_context *ctx, GLuint count, GLubyte *dest) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + GLuint j; + + for (j = 0; j < attr_count; j++) { + GLvector4f *vptr = VB->AttribPtr[a[j].attrib]; + a[j].inputstride = vptr->stride; + a[j].inputsize = vptr->size; + a[j].emit = a[j].insert[vptr->size - 1]; /* not always used */ + } + + vtx->emit = NULL; + + /* Does this match an existing (hardwired, codegen or known-bad) + * fastpath? + */ + if (search_fastpath_emit(vtx)) { + /* Use this result. If it is null, then it is already known + * that the current state will fail for codegen and there is no + * point trying again. + */ + } + else if (vtx->codegen_emit) { + vtx->codegen_emit(ctx); + } + + if (!vtx->emit) { + _tnl_generate_hardwired_emit(ctx); + } + + /* Otherwise use the generic version: + */ + if (!vtx->emit) + vtx->emit = _tnl_generic_emit; + + vtx->emit( ctx, count, dest ); +} + + + +static void choose_interp_func( struct gl_context *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + if (vtx->need_extras && + (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) { + vtx->interp = _tnl_generic_interp_extras; + } else { + vtx->interp = _tnl_generic_interp; + } + + vtx->interp( ctx, t, edst, eout, ein, force_boundary ); +} + + +static void choose_copy_pv_func( struct gl_context *ctx, GLuint edst, GLuint esrc ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + if (vtx->need_extras && + (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) { + vtx->copy_pv = _tnl_generic_copy_pv_extras; + } else { + vtx->copy_pv = _tnl_generic_copy_pv; + } + + vtx->copy_pv( ctx, edst, esrc ); +} + + +/*********************************************************************** + * Public entrypoints, mostly dispatch to the above: + */ + + +/* Interpolate between two vertices to produce a third: + */ +void _tnl_interp( struct gl_context *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + vtx->interp( ctx, t, edst, eout, ein, force_boundary ); +} + +/* Copy colors from one vertex to another: + */ +void _tnl_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + vtx->copy_pv( ctx, edst, esrc ); +} + + +/* Extract a named attribute from a hardware vertex. Will have to + * reverse any viewport transformation, swizzling or other conversions + * which may have been applied: + */ +void _tnl_get_attr( struct gl_context *ctx, const void *vin, + GLenum attr, GLfloat *dest ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + const struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + GLuint j; + + for (j = 0; j < attr_count; j++) { + if (a[j].attrib == attr) { + a[j].extract( &a[j], dest, (GLubyte *)vin + a[j].vertoffset ); + return; + } + } + + /* Else return the value from ctx->Current. + */ + if (attr == _TNL_ATTRIB_POINTSIZE) { + /* If the hardware vertex doesn't have point size then use size from + * struct gl_context. XXX this will be wrong if drawing attenuated points! + */ + dest[0] = ctx->Point.Size; + } + else { + memcpy( dest, ctx->Current.Attrib[attr], 4*sizeof(GLfloat)); + } +} + + +/* Complementary operation to the above. + */ +void _tnl_set_attr( struct gl_context *ctx, void *vout, + GLenum attr, const GLfloat *src ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + const struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + GLuint j; + + for (j = 0; j < attr_count; j++) { + if (a[j].attrib == attr) { + a[j].insert[4-1]( &a[j], (GLubyte *)vout + a[j].vertoffset, src ); + return; + } + } +} + + +void *_tnl_get_vertex( struct gl_context *ctx, GLuint nr ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + return vtx->vertex_buf + nr * vtx->vertex_size; +} + +void _tnl_invalidate_vertex_state( struct gl_context *ctx, GLuint new_state ) +{ + if (new_state & (_DD_NEW_TRI_LIGHT_TWOSIDE|_DD_NEW_TRI_UNFILLED) ) { + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + vtx->new_inputs = ~0; + vtx->interp = choose_interp_func; + vtx->copy_pv = choose_copy_pv_func; + } +} + +static void invalidate_funcs( struct tnl_clipspace *vtx ) +{ + vtx->emit = choose_emit_func; + vtx->interp = choose_interp_func; + vtx->copy_pv = choose_copy_pv_func; + vtx->new_inputs = ~0; +} + +GLuint _tnl_install_attrs( struct gl_context *ctx, const struct tnl_attr_map *map, + GLuint nr, const GLfloat *vp, + GLuint unpacked_size ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + GLuint offset = 0; + GLuint i, j; + + assert(nr < _TNL_ATTRIB_MAX); + assert(nr == 0 || map[0].attrib == VERT_ATTRIB_POS); + + vtx->new_inputs = ~0; + vtx->need_viewport = GL_FALSE; + + if (vp) { + vtx->need_viewport = GL_TRUE; + } + + for (j = 0, i = 0; i < nr; i++) { + const GLuint format = map[i].format; + if (format == EMIT_PAD) { + if (DBG) + printf("%d: pad %d, offset %d\n", i, + map[i].offset, offset); + + offset += map[i].offset; + + } + else { + GLuint tmpoffset; + + if (unpacked_size) + tmpoffset = map[i].offset; + else + tmpoffset = offset; + + if (vtx->attr_count != j || + vtx->attr[j].attrib != map[i].attrib || + vtx->attr[j].format != format || + vtx->attr[j].vertoffset != tmpoffset) { + invalidate_funcs(vtx); + + vtx->attr[j].attrib = map[i].attrib; + vtx->attr[j].format = format; + vtx->attr[j].vp = vp; + vtx->attr[j].insert = _tnl_format_info[format].insert; + vtx->attr[j].extract = _tnl_format_info[format].extract; + vtx->attr[j].vertattrsize = _tnl_format_info[format].attrsize; + vtx->attr[j].vertoffset = tmpoffset; + } + + + if (DBG) + printf("%d: %s, vp %p, offset %d\n", i, + _tnl_format_info[format].name, (void *)vp, + vtx->attr[j].vertoffset); + + offset += _tnl_format_info[format].attrsize; + j++; + } + } + + vtx->attr_count = j; + + if (unpacked_size) + vtx->vertex_size = unpacked_size; + else + vtx->vertex_size = offset; + + assert(vtx->vertex_size <= vtx->max_vertex_size); + return vtx->vertex_size; +} + + + +void _tnl_invalidate_vertices( struct gl_context *ctx, GLuint newinputs ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + vtx->new_inputs |= newinputs; +} + + +/* This event has broader use beyond this file - will move elsewhere + * and probably invoke a driver callback. + */ +void _tnl_notify_pipeline_output_change( struct gl_context *ctx ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + invalidate_funcs(vtx); +} + + +static void adjust_input_ptrs( struct gl_context *ctx, GLint diff) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_attr *a = vtx->attr; + const GLuint count = vtx->attr_count; + GLuint j; + + diff -= 1; + for (j=0; j<count; ++j) { + register GLvector4f *vptr = VB->AttribPtr[a->attrib]; + (a++)->inputptr += diff*vptr->stride; + } +} + +static void update_input_ptrs( struct gl_context *ctx, GLuint start ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_attr *a = vtx->attr; + const GLuint count = vtx->attr_count; + GLuint j; + + for (j = 0; j < count; j++) { + GLvector4f *vptr = VB->AttribPtr[a[j].attrib]; + + if (vtx->emit != choose_emit_func) { + assert(a[j].inputstride == vptr->stride); + assert(a[j].inputsize == vptr->size); + } + + a[j].inputptr = ((GLubyte *)vptr->data) + start * vptr->stride; + } + + if (a->vp) { + vtx->vp_scale[0] = a->vp[MAT_SX]; + vtx->vp_scale[1] = a->vp[MAT_SY]; + vtx->vp_scale[2] = a->vp[MAT_SZ]; + vtx->vp_scale[3] = 1.0; + vtx->vp_xlate[0] = a->vp[MAT_TX]; + vtx->vp_xlate[1] = a->vp[MAT_TY]; + vtx->vp_xlate[2] = a->vp[MAT_TZ]; + vtx->vp_xlate[3] = 0.0; + } +} + + +void _tnl_build_vertices( struct gl_context *ctx, + GLuint start, + GLuint end, + GLuint newinputs ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + update_input_ptrs( ctx, start ); + vtx->emit( ctx, end - start, + (GLubyte *)(vtx->vertex_buf + + start * vtx->vertex_size)); +} + +/* Emit VB vertices start..end to dest. Note that VB vertex at + * postion start will be emitted to dest at position zero. + */ +void *_tnl_emit_vertices_to_buffer( struct gl_context *ctx, + GLuint start, + GLuint end, + void *dest ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + update_input_ptrs(ctx, start); + /* Note: dest should not be adjusted for non-zero 'start' values: + */ + vtx->emit( ctx, end - start, (GLubyte*) dest ); + return (void *)((GLubyte *)dest + vtx->vertex_size * (end - start)); +} + +/* Emit indexed VB vertices start..end to dest. Note that VB vertex at + * postion start will be emitted to dest at position zero. + */ + +void *_tnl_emit_indexed_vertices_to_buffer( struct gl_context *ctx, + const GLuint *elts, + GLuint start, + GLuint end, + void *dest ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + GLuint oldIndex; + GLubyte *cdest = dest; + + update_input_ptrs(ctx, oldIndex = elts[start++]); + vtx->emit( ctx, 1, cdest ); + cdest += vtx->vertex_size; + + for (; start < end; ++start) { + adjust_input_ptrs(ctx, elts[start] - oldIndex); + oldIndex = elts[start]; + vtx->emit( ctx, 1, cdest); + cdest += vtx->vertex_size; + } + + return (void *) cdest; +} + + +void _tnl_init_vertices( struct gl_context *ctx, + GLuint vb_size, + GLuint max_vertex_size ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + _tnl_install_attrs( ctx, NULL, 0, NULL, 0 ); + + vtx->need_extras = GL_TRUE; + if (max_vertex_size > vtx->max_vertex_size) { + _tnl_free_vertices( ctx ); + vtx->max_vertex_size = max_vertex_size; + vtx->vertex_buf = (GLubyte *)_mesa_align_calloc(vb_size * max_vertex_size, 32 ); + invalidate_funcs(vtx); + } + + switch(CHAN_TYPE) { + case GL_UNSIGNED_BYTE: + vtx->chan_scale[0] = 255.0; + vtx->chan_scale[1] = 255.0; + vtx->chan_scale[2] = 255.0; + vtx->chan_scale[3] = 255.0; + break; + case GL_UNSIGNED_SHORT: + vtx->chan_scale[0] = 65535.0; + vtx->chan_scale[1] = 65535.0; + vtx->chan_scale[2] = 65535.0; + vtx->chan_scale[3] = 65535.0; + break; + default: + vtx->chan_scale[0] = 1.0; + vtx->chan_scale[1] = 1.0; + vtx->chan_scale[2] = 1.0; + vtx->chan_scale[3] = 1.0; + break; + } + + vtx->identity[0] = 0.0; + vtx->identity[1] = 0.0; + vtx->identity[2] = 0.0; + vtx->identity[3] = 1.0; + + vtx->codegen_emit = NULL; + +#ifdef USE_SSE_ASM + if (!_mesa_getenv("MESA_NO_CODEGEN")) + vtx->codegen_emit = _tnl_generate_sse_emit; +#endif +} + + +void _tnl_free_vertices( struct gl_context *ctx ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + if (tnl) { + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_fastpath *fp, *tmp; + + if (vtx->vertex_buf) { + _mesa_align_free(vtx->vertex_buf); + vtx->vertex_buf = NULL; + } + + for (fp = vtx->fastpath ; fp ; fp = tmp) { + tmp = fp->next; + FREE(fp->attr); + + /* KW: At the moment, fp->func is constrained to be allocated by + * _mesa_exec_alloc(), as the hardwired fastpaths in + * t_vertex_generic.c are handled specially. It would be nice + * to unify them, but this probably won't change until this + * module gets another overhaul. + */ + _mesa_exec_free((void *) fp->func); + FREE(fp); + } + + vtx->fastpath = NULL; + } +} |