diff options
Diffstat (limited to 'src/mesa/drivers/glide/fxvbtmp.h')
| -rw-r--r-- | src/mesa/drivers/glide/fxvbtmp.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/mesa/drivers/glide/fxvbtmp.h b/src/mesa/drivers/glide/fxvbtmp.h new file mode 100644 index 0000000000..5f3a293650 --- /dev/null +++ b/src/mesa/drivers/glide/fxvbtmp.h @@ -0,0 +1,143 @@ + +/* + * Mesa 3-D graphics library + * Version: 3.3 + * + * Copyright (C) 1999-2000 Brian Paul 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, sublicense, + * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL 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. + * + * Author: + * Keith Whitwell <keith@precisioninsight.com> + */ + + +static void NAME(GLcontext *ctx, GLuint start, GLuint end, GLuint newinputs) +{ + fxMesaContext fxMesa = (fxMesaContext)ctx->DriverCtx; + fxVertex *verts = fxMesa->verts; + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLuint tmu0_source = fxMesa->tmu_source[0]; + GLuint tmu1_source = fxMesa->tmu_source[1]; + GLfloat (*tmu0_data)[4]; + GLfloat (*tmu1_data)[4]; + GLubyte (*color)[4]; + GLfloat (*proj)[4] = VB->ProjectedClipPtr->data; + fxVertex *v = &verts[start]; + GLfloat sscale0 = fxMesa->s0scale; + GLfloat tscale0 = fxMesa->t0scale; + GLfloat sscale1 = fxMesa->s1scale; + GLfloat tscale1 = fxMesa->t1scale; + GLubyte *clipmask = VB->ClipMask; + GLuint i; + const GLfloat * const s = ctx->Viewport._WindowMap.m; + + if (IND & SETUP_TMU0) + tmu0_data = VB->TexCoordPtr[tmu0_source]->data; + + if (IND & SETUP_TMU1) + tmu1_data = VB->TexCoordPtr[tmu1_source]->data; + + if (IND & SETUP_RGBA) + color = VB->ColorPtr[0]->data; + + for (i = start ; i < end ; i++, v++) { + if (!clipmask[i]) { + if (IND & SETUP_XYZW) { + v->v.x = s[0] * proj[i][0] + s[12]; + v->v.y = s[5] * proj[i][1] + s[13]; + v->v.ooz = s[10] * proj[i][2] + s[14]; + v->v.oow = proj[i][3]; + + if (IND & SETUP_SNAP) { +#if defined(USE_IEEE) + const float snapper = (3L<<18); + v->v.x += snapper; + v->v.x -= snapper; + v->v.y += snapper; + v->v.y -= snapper; +#else + v->v.x = ((int)(v->v.x*16.0f)) * (1.0f/16.0f); + v->v.y = ((int)(v->v.y*16.0f)) * (1.0f/16.0f); +#endif + } + } + if (IND & SETUP_RGBA) { + UBYTE_COLOR_TO_FLOAT_255_COLOR2(v->v.r, color[i][0]); + UBYTE_COLOR_TO_FLOAT_255_COLOR2(v->v.g, color[i][1]); + UBYTE_COLOR_TO_FLOAT_255_COLOR2(v->v.b, color[i][2]); + UBYTE_COLOR_TO_FLOAT_255_COLOR2(v->v.a, color[i][3]); + } + if (IND & SETUP_TMU0) { + v->v.tmuvtx[0].sow = sscale0*tmu0_data[i][0]*v->v.oow; + v->v.tmuvtx[0].tow = tscale0*tmu0_data[i][1]*v->v.oow; + } + if (IND & SETUP_TMU1) { + v->v.tmuvtx[1].sow = sscale1*tmu1_data[i][0]*v->v.oow; + v->v.tmuvtx[1].tow = tscale1*tmu1_data[i][1]*v->v.oow; + } + } + } + + if ((IND & SETUP_XYZW) && + ctx->ProjectionMatrix.m[15] != 0.0F && + ctx->Fog.Enabled) + { + fx_fake_fog_w( ctx, v, VB, start, end ); + } + + /* Check for and enable projective texturing in each texture unit. + */ + if (IND & (SETUP_TMU0|SETUP_TMU1)) { + GLuint tmu0_sz = 2; + GLuint tmu1_sz = 2; + GLuint hs = fxMesa->stw_hint_state & ~(GR_STWHINT_W_DIFF_TMU0 | + GR_STWHINT_W_DIFF_TMU1); + + if (VB->TexCoordPtr[tmu0_source]) + tmu0_sz = VB->TexCoordPtr[tmu0_source]->size; + + if (VB->TexCoordPtr[tmu1_source]) + tmu1_sz = VB->TexCoordPtr[tmu1_source]->size; + + if (tmu0_sz == 4) { + project_texcoords( v, VB, 0, tmu0_source, start, end ); + if (tmu1_sz == 4) + project_texcoords( v, VB, 1, tmu1_source, start, end ); + else + copy_w( v, VB, 1, start, end ); + hs |= (GR_STWHINT_W_DIFF_TMU0|GR_STWHINT_W_DIFF_TMU1); + } + else if (tmu1_sz == 4) { + project_texcoords( v, VB, 1, tmu1_source, start, end ); + hs |= GR_STWHINT_W_DIFF_TMU1; + } + + if (hs != fxMesa->stw_hint_state) { + fxMesa->stw_hint_state = hs; + FX_grHints(GR_HINT_STWHINT, hs); + } + } +} + + + + +#undef IND +#undef NAME +#undef INPUTS |