/* * 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 */ #include "glheader.h" #include "context.h" #include "colormac.h" #include "t_context.h" #include "t_vertex.h" /* Build and manage clipspace/ndc/window vertices. * * Another new mechanism designed and crying out for codegen. Before * that, it would be very interesting to investigate the merger of * these vertices and those built in t_vtx_*. */ #define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace) static void insert_4f_viewport_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[5] * in[1] + vp[13]; out[2] = vp[10] * in[2] + vp[14]; out[3] = in[3]; } static void insert_4f_viewport_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[5] * in[1] + vp[13]; out[2] = vp[10] * in[2] + vp[14]; out[3] = 1; } static void insert_4f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[5] * in[1] + vp[13]; out[2] = vp[14]; out[3] = 1; } static void insert_4f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[13]; out[2] = vp[14]; out[3] = 1; } static void insert_3f_viewport_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[5] * in[1] + vp[13]; out[2] = vp[10] * in[2] + vp[14]; } static void insert_3f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[5] * in[1] + vp[13]; out[2] = vp[10] * in[2] + vp[14]; } static void insert_3f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[13]; out[2] = vp[14]; } static void insert_2f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[5] * in[1] + vp[13]; } static void insert_2f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = vp[0] * in[0] + vp[12]; out[1] = vp[13]; } static void insert_4f_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = in[1]; out[2] = in[2]; out[3] = in[3]; } static void insert_4f_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = in[1]; out[2] = in[2]; out[3] = 1; } static void insert_4f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = in[1]; out[2] = 0; out[3] = 1; } static void insert_4f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = 0; out[2] = 0; out[3] = 1; } static void insert_3f_xyw_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = in[1]; out[2] = in[3]; } static void insert_3f_xyw_err( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { abort(); } static void insert_3f_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = in[1]; out[2] = in[2]; } static void insert_3f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = in[1]; out[2] = 0; } static void insert_3f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = 0; out[2] = 0; } static void insert_2f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = in[1]; } static void insert_2f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; out[1] = 0; } static void insert_1f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLfloat *out = (GLfloat *)(v); out[0] = in[0]; } static void insert_4chan_4f_rgba_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLchan *c = (GLchan *)v; UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]); UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]); UNCLAMPED_FLOAT_TO_CHAN(c[2], in[2]); UNCLAMPED_FLOAT_TO_CHAN(c[3], in[3]); } static void insert_4chan_4f_rgba_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLchan *c = (GLchan *)v; UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]); UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]); UNCLAMPED_FLOAT_TO_CHAN(c[2], in[2]); c[3] = CHAN_MAX; } static void insert_4chan_4f_rgba_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLchan *c = (GLchan *)v; UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]); UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]); c[2] = 0; c[3] = CHAN_MAX; } static void insert_4chan_4f_rgba_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { GLchan *c = (GLchan *)v; UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]); c[1] = 0; c[2] = 0; c[3] = CHAN_MAX; } static void insert_4ub_4f_rgba_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]); UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[3]); } static void insert_4ub_4f_rgba_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]); v[3] = 0xff; } static void insert_4ub_4f_rgba_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); v[2] = 0; v[3] = 0xff; } static void insert_4ub_4f_rgba_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); v[1] = 0; v[2] = 0; v[3] = 0xff; } static void insert_4ub_4f_bgra_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]); UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[3]); } static void insert_4ub_4f_bgra_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]); v[3] = 0xff; } static void insert_4ub_4f_bgra_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); v[0] = 0; v[3] = 0xff; } static void insert_4ub_4f_bgra_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); v[1] = 0; v[0] = 0; v[3] = 0xff; } static void insert_3ub_3f_rgb_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]); } static void insert_3ub_3f_rgb_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); v[2] = 0; } static void insert_3ub_3f_rgb_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); v[1] = 0; v[2] = 0; } static void insert_3ub_3f_bgr_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]); } static void insert_3ub_3f_bgr_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); v[0] = 0; } static void insert_3ub_3f_bgr_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); v[1] = 0; v[0]= 0; } static void insert_1ub_1f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) { UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); } /*********************************************************************** * Functions to perform the reverse operations to the above, for * swrast translation and clip-interpolation. * * Currently always extracts a full 4 floats. */ static void extract_4f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { const GLfloat *in = (const GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = (in[0] - vp[12]) / vp[0]; out[1] = (in[1] - vp[13]) / vp[5]; out[2] = (in[2] - vp[14]) / vp[10]; out[3] = in[3]; } static void extract_3f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { const GLfloat *in = (const GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = (in[0] - vp[12]) / vp[0]; out[1] = (in[1] - vp[13]) / vp[5]; out[2] = (in[2] - vp[14]) / vp[10]; out[3] = 1; } static void extract_2f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { const GLfloat *in = (const GLfloat *)v; const GLfloat * const vp = a->vp; out[0] = (in[0] - vp[12]) / vp[0]; out[1] = (in[1] - vp[13]) / vp[5]; out[2] = 0; out[3] = 1; } static void extract_4f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { const GLfloat *in = (const GLfloat *)v; out[0] = in[0]; out[1] = in[1]; out[2] = in[2]; out[3] = in[3]; } static void extract_3f_xyw( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { const GLfloat *in = (const GLfloat *)v; out[0] = in[0]; out[1] = in[1]; out[2] = in[3]; out[3] = 1; } static void extract_3f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { const GLfloat *in = (const GLfloat *)v; out[0] = in[0]; out[1] = in[1]; out[2] = in[2]; out[3] = 1; } static void extract_2f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { const GLfloat *in = (const GLfloat *)v; out[0] = in[0]; out[1] = in[1]; out[2] = 0; out[3] = 1; } static void extract_1f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { const GLfloat *in = (const GLfloat *)v; out[0] = in[0]; out[1] = 0; out[2] = 0; out[3] = 1; } static void extract_4chan_4f_rgba( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { GLchan *c = (GLchan *)v; out[0] = CHAN_TO_FLOAT(c[0]); out[1] = CHAN_TO_FLOAT(c[1]); out[2] = CHAN_TO_FLOAT(c[2]); out[3] = CHAN_TO_FLOAT(c[3]); } static void extract_4ub_4f_rgba( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { out[0] = UBYTE_TO_FLOAT(v[0]); out[1] = UBYTE_TO_FLOAT(v[1]); out[2] = UBYTE_TO_FLOAT(v[2]); out[3] = UBYTE_TO_FLOAT(v[3]); } static void extract_4ub_4f_bgra( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { out[2] = UBYTE_TO_FLOAT(v[0]); out[1] = UBYTE_TO_FLOAT(v[1]); out[0] = UBYTE_TO_FLOAT(v[2]); out[3] = UBYTE_TO_FLOAT(v[3]); } static void extract_3ub_3f_rgb( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { out[0] = UBYTE_TO_FLOAT(v[0]); out[1] = UBYTE_TO_FLOAT(v[1]); out[2] = UBYTE_TO_FLOAT(v[2]); out[3] = 1; } static void extract_3ub_3f_bgr( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { out[2] = UBYTE_TO_FLOAT(v[0]); out[1] = UBYTE_TO_FLOAT(v[1]); out[0] = UBYTE_TO_FLOAT(v[2]); out[3] = 1; } static void extract_1ub_1f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) { out[0] = UBYTE_TO_FLOAT(v[0]); out[1] = 0; out[2] = 0; out[3] = 1; } struct { const char *name; extract_func extract; insert_func insert[4]; GLuint attrsize; } format_info[EMIT_MAX] = { { "1f", extract_1f, { insert_1f_1, insert_1f_1, insert_1f_1, insert_1f_1 }, sizeof(GLfloat) }, { "2f", extract_2f, { insert_2f_1, insert_2f_2, insert_2f_2, insert_2f_2 }, 2 * sizeof(GLfloat) }, { "3f", extract_3f, { insert_3f_1, insert_3f_2, insert_3f_3, insert_3f_3 }, 3 * sizeof(GLfloat) }, { "4f", extract_4f, { insert_4f_1, insert_4f_2, insert_4f_3, insert_4f_4 }, 4 * sizeof(GLfloat) }, { "2f_viewport", extract_2f_viewport, { insert_2f_viewport_1, insert_2f_viewport_2, insert_2f_viewport_2, insert_2f_viewport_2 }, 2 * sizeof(GLfloat) }, { "3f_viewport", extract_3f_viewport, { insert_3f_viewport_1, insert_3f_viewport_2, insert_3f_viewport_3, insert_3f_viewport_3 }, 3 * sizeof(GLfloat) }, { "4f_viewport", extract_4f_viewport, { insert_4f_viewport_1, insert_4f_viewport_2, insert_4f_viewport_3, insert_4f_viewport_4 }, 4 * sizeof(GLfloat) }, { "3f_xyw", extract_3f_xyw, { insert_3f_xyw_err, insert_3f_xyw_err, insert_3f_xyw_err, insert_3f_xyw_4 }, 3 * sizeof(GLfloat) }, { "1ub_1f", extract_1ub_1f, { insert_1ub_1f_1, insert_1ub_1f_1, insert_1ub_1f_1, insert_1ub_1f_1 }, sizeof(GLubyte) }, { "3ub_3f_rgb", extract_3ub_3f_rgb, { insert_3ub_3f_rgb_1, insert_3ub_3f_rgb_2, insert_3ub_3f_rgb_3, insert_3ub_3f_rgb_3 }, 3 * sizeof(GLubyte) }, { "3ub_3f_bgr", extract_3ub_3f_bgr, { insert_3ub_3f_bgr_1, insert_3ub_3f_bgr_2, insert_3ub_3f_bgr_3, insert_3ub_3f_bgr_3 }, 3 * sizeof(GLubyte) }, { "4ub_4f_rgba", extract_4ub_4f_rgba, { insert_4ub_4f_rgba_1, insert_4ub_4f_rgba_2, insert_4ub_4f_rgba_3, insert_4ub_4f_rgba_4 }, 4 * sizeof(GLubyte) }, { "4ub_4f_bgra", extract_4ub_4f_bgra, { insert_4ub_4f_bgra_1, insert_4ub_4f_bgra_2, insert_4ub_4f_bgra_3, insert_4ub_4f_bgra_4 }, 4 * sizeof(GLubyte) }, { "4chan_4f_rgba", extract_4chan_4f_rgba, { insert_4chan_4f_rgba_1, insert_4chan_4f_rgba_2, insert_4chan_4f_rgba_3, insert_4chan_4f_rgba_4 }, 4 * sizeof(GLchan) } }; /*********************************************************************** * Generic (non-codegen) functions for whole vertices or groups of * vertices */ static void generic_emit( GLcontext *ctx, GLuint start, GLuint end, void *dest ) { struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); struct tnl_clipspace_attr *a = vtx->attr; GLubyte *v = (GLubyte *)dest; GLuint i, j; GLuint count = vtx->attr_count; GLuint stride; for (j = 0; j < count; j++) { GLvector4f *vptr = VB->AttribPtr[a[j].attrib]; a[j].inputstride = vptr->stride; a[j].inputptr = ((GLubyte *)vptr->data) + start * vptr->stride; a[j].emit = a[j].insert[vptr->size - 1]; } end -= start; stride = vtx->vertex_size; for (i = 0 ; i < end ; i++, v += stride) { for (j = 0; j < count; j++) { GLfloat *in = (GLfloat *)a[j].inputptr; a[j].inputptr += a[j].inputstride; a[j].emit( &a[j], v + a[j].vertoffset, in ); } } } static void generic_interp( GLcontext *ctx, GLfloat t, GLuint edst, GLuint eout, GLuint ein, GLboolean force_boundary ) { TNLcontext *tnl = TNL_CONTEXT(ctx); struct vertex_buffer *VB = &tnl->vb; struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); GLubyte *vin = vtx->vertex_buf + ein * vtx->vertex_size; GLubyte *vout = vtx->vertex_buf + eout * vtx->vertex_size; GLubyte *vdst = vtx->vertex_buf + edst * vtx->vertex_size; const struct tnl_clipspace_attr *a = vtx->attr; int attr_count = vtx->attr_count; int j; if (tnl->NeedNdcCoords) { const GLfloat *dstclip = VB->ClipPtr->data[edst]; if (dstclip[3] != 0.0) { const GLfloat w = 1.0f / dstclip[3]; GLfloat pos[4]; pos[0] = dstclip[0] * w; pos[1] = dstclip[1] * w; pos[2] = dstclip[2] * w; pos[3] = w; a[0].insert[4-1]( &a[0], vdst, pos ); } } else { a[0].insert[4-1]( &a[0], vdst, VB->ClipPtr->data[edst] ); } for (j = 1; j < attr_count; j++) { GLfloat fin[4], fout[4], fdst[4]; a[j].extract( &a[j], fin, vin + a[j].vertoffset ); a[j].extract( &a[j], fout, vout + a[j].vertoffset ); INTERP_F( t, fdst[3], fout[3], fin[3] ); INTERP_F( t, fdst[2], fout[2], fin[2] ); INTERP_F( t, fdst[1], fout[1], fin[1] ); INTERP_F( t, fdst[0], fout[0], fin[0] ); a[j].insert[4-1]( &a[j], vdst + a[j].vertoffset, fdst ); } } /* Extract color attributes from one vertex and insert them into * another. (Shortcircuit extract/insert with memcpy). */ static void generic_copy_pv( GLcontext *ctx, GLuint edst, GLuint esrc ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); GLubyte *vsrc = vtx->vertex_buf + esrc * vtx->vertex_size; GLubyte *vdst = vtx->vertex_buf + edst * vtx->vertex_size; const struct tnl_clipspace_attr *a = vtx->attr; int attr_count = vtx->attr_count; int j; for (j = 0; j < attr_count; j++) { if (a[j].attrib == VERT_ATTRIB_COLOR0 || a[j].attrib == VERT_ATTRIB_COLOR1) { _mesa_memcpy( vdst + a[j].vertoffset, vsrc + a[j].vertoffset, a[j].vertattrsize ); } } } /* Helper functions for hardware which doesn't put back colors and/or * edgeflags into vertices. */ static void generic_interp_extras( GLcontext *ctx, GLfloat t, GLuint dst, GLuint out, GLuint in, GLboolean force_boundary ) { struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; if (VB->ColorPtr[1]) { assert(VB->ColorPtr[1]->stride == 4 * sizeof(GLfloat)); INTERP_4F( t, VB->ColorPtr[1]->data[dst], VB->ColorPtr[1]->data[out], VB->ColorPtr[1]->data[in] ); if (VB->SecondaryColorPtr[1]) { INTERP_3F( t, VB->SecondaryColorPtr[1]->data[dst], VB->SecondaryColorPtr[1]->data[out], VB->SecondaryColorPtr[1]->data[in] ); } } else if (VB->IndexPtr[1]) { VB->IndexPtr[1]->data[dst][0] = LINTERP( t, VB->IndexPtr[1]->data[out][0], VB->IndexPtr[1]->data[in][0] ); } if (VB->EdgeFlag) { VB->EdgeFlag[dst] = VB->EdgeFlag[out] || force_boundary; } generic_interp(ctx, t, dst, out, in, force_boundary); } static void generic_copy_pv_extras( GLcontext *ctx, GLuint dst, GLuint src ) { struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; if (VB->ColorPtr[1]) { COPY_4FV( VB->ColorPtr[1]->data[dst], VB->ColorPtr[1]->data[src] ); if (VB->SecondaryColorPtr[1]) { COPY_4FV( VB->SecondaryColorPtr[1]->data[dst], VB->SecondaryColorPtr[1]->data[src] ); } } else if (VB->IndexPtr[1]) { VB->IndexPtr[1]->data[dst][0] = VB->IndexPtr[1]->data[src][0]; } _tnl_copy_pv(ctx, dst, src); } /*********************************************************************** * Build codegen functions or return generic ones: */ static void choose_emit_func( GLcontext *ctx, GLuint start, GLuint end, void *dest ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); vtx->emit = generic_emit; vtx->emit( ctx, start, end, dest ); } static void choose_interp_func( GLcontext *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 = generic_interp_extras; } else { vtx->interp = generic_interp; } vtx->interp( ctx, t, edst, eout, ein, force_boundary ); } static void choose_copy_pv_func( GLcontext *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 = generic_copy_pv_extras; } else { vtx->copy_pv = 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( GLcontext *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( GLcontext *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( GLcontext *ctx, const void *vin, GLenum attr, GLfloat *dest ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); const struct tnl_clipspace_attr *a = vtx->attr; int attr_count = vtx->attr_count; int j; for (j = 0; j < attr_count; j++) { if (a[j].attrib == (int)attr) { a[j].extract( &a[j], dest, (GLubyte *)vin + a[j].vertoffset ); return; } } /* Else return the value from ctx->Current */ _mesa_memcpy( dest, ctx->Current.Attrib[attr], 4*sizeof(GLfloat)); } void *_tnl_get_vertex( GLcontext *ctx, GLuint nr ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); return vtx->vertex_buf + nr * vtx->vertex_size; } void _tnl_invalidate_vertex_state( GLcontext *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; } } GLuint _tnl_install_attrs( GLcontext *ctx, const struct tnl_attr_map *map, GLuint nr, const GLfloat *vp, GLuint unpacked_size ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); int offset = 0; GLuint i; assert(nr < _TNL_ATTRIB_MAX); assert(nr == 0 || map[0].attrib == VERT_ATTRIB_POS); vtx->attr_count = nr; vtx->emit = choose_emit_func; vtx->interp = choose_interp_func; vtx->copy_pv = choose_copy_pv_func; vtx->new_inputs = ~0; for (i = 0; i < nr; i++) { GLuint format = map[i].format; vtx->attr[i].attrib = map[i].attrib; vtx->attr[i].vp = vp; vtx->attr[i].insert = format_info[format].insert; vtx->attr[i].extract = format_info[format].extract; vtx->attr[i].vertattrsize = format_info[format].attrsize; if (unpacked_size) vtx->attr[i].vertoffset = map[i].offset; else vtx->attr[i].vertoffset = offset; /* fprintf(stderr, "%d: %s offset %d\n", i, */ /* format_info[format].name, vtx->attr[i].vertoffset); */ offset += format_info[format].attrsize; } 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( GLcontext *ctx, GLuint newinputs ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); vtx->new_inputs |= newinputs; } void _tnl_build_vertices( GLcontext *ctx, GLuint start, GLuint end, GLuint newinputs ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); GLuint stride = vtx->vertex_size; GLubyte *v = ((GLubyte *)vtx->vertex_buf + (start*stride)); newinputs |= vtx->new_inputs; vtx->new_inputs = 0; if (newinputs) vtx->emit( ctx, start, end, v ); } void *_tnl_emit_vertices_to_buffer( GLcontext *ctx, GLuint start, GLuint end, void *dest ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); vtx->emit( ctx, start, end, dest ); return (void *)((GLubyte *)dest + vtx->vertex_size * (end - start)); } void _tnl_init_vertices( GLcontext *ctx, GLuint vb_size, GLuint max_vertex_size ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); _tnl_install_attrs( ctx, 0, 0, 0, 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 *)ALIGN_MALLOC(vb_size * max_vertex_size, 32 ); } } void _tnl_free_vertices( GLcontext *ctx ) { struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); if (vtx->vertex_buf) { ALIGN_FREE(vtx->vertex_buf); vtx->vertex_buf = 0; } }