diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/tdfx/tdfx_vbtmp.h')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/tdfx/tdfx_vbtmp.h | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/tdfx/tdfx_vbtmp.h b/nx-X11/extras/Mesa/src/mesa/drivers/dri/tdfx/tdfx_vbtmp.h new file mode 100644 index 000000000..9b780761f --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/tdfx/tdfx_vbtmp.h @@ -0,0 +1,266 @@ +/* + * Mesa 3-D graphics library + * Version: 4.1 + * + * Copyright (C) 1999-2002 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. + */ + +/* Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Daniel Borca <dborca@users.sourceforge.net> + */ + + +#define VIEWPORT_X(dst,x) dst = s[0] * x + s[12] +#define VIEWPORT_Y(dst,y) dst = s[5] * y + s[13] +#define VIEWPORT_Z(dst,z) dst = s[10] * z + s[14] + + +static void TAG(emit)( GLcontext *ctx, + GLuint start, GLuint end, + void *dest ) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx); + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLuint tmu0_source = fxMesa->tmu_source[0]; + GLuint tmu1_source = fxMesa->tmu_source[1]; + GLfloat (*tc0)[4], (*tc1)[4]; + GLfloat (*col)[4]; + GLuint tc0_stride, tc1_stride, col_stride; + GLuint tc0_size, tc1_size, col_size; + GLfloat (*proj)[4] = VB->NdcPtr->data; + GLuint proj_stride = VB->NdcPtr->stride; + GLfloat (*fog)[4]; + GLuint fog_stride; + tdfxVertex *v = (tdfxVertex *)dest; + GLfloat u0scale,v0scale,u1scale,v1scale; + const GLubyte *mask = VB->ClipMask; + const GLfloat *s = fxMesa->hw_viewport; + int i; + +/* fprintf(stderr, "%s\n", __FUNCTION__); */ + + if (IND & TDFX_TEX0_BIT) { + tc0_stride = VB->TexCoordPtr[tmu0_source]->stride; + tc0 = VB->TexCoordPtr[tmu0_source]->data; + u0scale = fxMesa->sScale0; + v0scale = fxMesa->tScale0; + if (IND & TDFX_PTEX_BIT) + tc0_size = VB->TexCoordPtr[tmu0_source]->size; + } + + if (IND & TDFX_TEX1_BIT) { + tc1 = VB->TexCoordPtr[tmu1_source]->data; + tc1_stride = VB->TexCoordPtr[tmu1_source]->stride; + u1scale = fxMesa->sScale1; + v1scale = fxMesa->tScale1; + if (IND & TDFX_PTEX_BIT) + tc1_size = VB->TexCoordPtr[tmu1_source]->size; + } + + if (IND & TDFX_RGBA_BIT) { + col = VB->ColorPtr[0]->data; + col_stride = VB->ColorPtr[0]->stride; + col_size = VB->ColorPtr[0]->size; + } + + if (IND & TDFX_FOGC_BIT) { + fog = VB->FogCoordPtr->data; + fog_stride = VB->FogCoordPtr->stride; + } + + { + /* May have nonstandard strides: + */ + if (start) { + proj = (GLfloat (*)[4])((GLubyte *)proj + start * proj_stride); + if (IND & TDFX_TEX0_BIT) + tc0 = (GLfloat (*)[4])((GLubyte *)tc0 + start * tc0_stride); + if (IND & TDFX_TEX1_BIT) + tc1 = (GLfloat (*)[4])((GLubyte *)tc1 + start * tc1_stride); + if (IND & TDFX_RGBA_BIT) + STRIDE_4F(col, start * col_stride); + if (IND & TDFX_FOGC_BIT) + STRIDE_4F(fog, start * fog_stride); + } + + for (i=start; i < end; i++, v++) { + if (IND & TDFX_XYZ_BIT) { + if (mask[i] == 0) { + /* unclipped */ + VIEWPORT_X(v->x, proj[0][0]); + VIEWPORT_Y(v->y, proj[0][1]); + VIEWPORT_Z(v->z, proj[0][2]); + v->rhw = proj[0][3]; + } else { + /* clipped */ + v->rhw = 1.0; + } + proj = (GLfloat (*)[4])((GLubyte *)proj + proj_stride); + } + if (IND & TDFX_RGBA_BIT) { + UNCLAMPED_FLOAT_TO_UBYTE(v->color[0], col[0][2]); + UNCLAMPED_FLOAT_TO_UBYTE(v->color[1], col[0][1]); + UNCLAMPED_FLOAT_TO_UBYTE(v->color[2], col[0][0]); + if (col_size == 4) { + UNCLAMPED_FLOAT_TO_UBYTE(v->color[3], col[0][3]); + } else { + v->color[3] = 255; + } + STRIDE_4F(col, col_stride); + } + if (IND & TDFX_FOGC_BIT) { + v->fog = CLAMP(fog[0][0], 0.0f, 1.0f); + STRIDE_4F(fog, fog_stride); + } + if (IND & TDFX_TEX0_BIT) { + GLfloat w = v->rhw; + v->tu0 = tc0[0][0] * u0scale * w; + v->tv0 = tc0[0][1] * v0scale * w; + if (IND & TDFX_PTEX_BIT) { + v->tq0 = w; + if (tc0_size == 4) + v->tq0 = tc0[0][3] * w; + } + tc0 = (GLfloat (*)[4])((GLubyte *)tc0 + tc0_stride); + } + if (IND & TDFX_TEX1_BIT) { + GLfloat w = v->rhw; + v->tu1 = tc1[0][0] * u1scale * w; + v->tv1 = tc1[0][1] * v1scale * w; + if (IND & TDFX_PTEX_BIT) { + v->tq1 = w; + if (tc1_size == 4) + v->tq1 = tc1[0][3] * w; + } + tc1 = (GLfloat (*)[4])((GLubyte *)tc1 + tc1_stride); + } + } + } +} + + +static GLboolean TAG(check_tex_sizes)( GLcontext *ctx ) +{ +/* fprintf(stderr, "%s\n", __FUNCTION__); */ + + if (IND & TDFX_PTEX_BIT) + return GL_TRUE; + + if (IND & TDFX_TEX0_BIT) { + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + + if (IND & TDFX_TEX1_BIT) { + if (VB->TexCoordPtr[0] == 0) + VB->TexCoordPtr[0] = VB->TexCoordPtr[1]; + + if (VB->TexCoordPtr[1]->size == 4) + return GL_FALSE; + } + + if (VB->TexCoordPtr[0]->size == 4) + return GL_FALSE; + } + + return GL_TRUE; +} + + +static void TAG(interp)( GLcontext *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ) +{ + tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx ); + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + const GLfloat *dstclip = VB->ClipPtr->data[edst]; + const GLfloat oow = (dstclip[3] == 0.0F) ? 1.0F : (1.0F / dstclip[3]); + const GLfloat *s = fxMesa->hw_viewport; + tdfxVertex *dst = fxMesa->verts + edst; + const tdfxVertex *out = fxMesa->verts + eout; + const tdfxVertex *in = fxMesa->verts + ein; + const GLfloat wout = oow / out->rhw; + const GLfloat win = oow / in->rhw; + + VIEWPORT_X(dst->x, dstclip[0] * oow); + VIEWPORT_Y(dst->y, dstclip[1] * oow); + VIEWPORT_Z(dst->z, dstclip[2] * oow); + dst->rhw = oow; + + INTERP_UB( t, dst->color[0], out->color[0], in->color[0] ); + INTERP_UB( t, dst->color[1], out->color[1], in->color[1] ); + INTERP_UB( t, dst->color[2], out->color[2], in->color[2] ); + INTERP_UB( t, dst->color[3], out->color[3], in->color[3] ); + + if (IND & TDFX_FOGC_BIT) { + INTERP_F( t, dst->fog, out->fog, in->fog ); + } + + if (IND & TDFX_TEX0_BIT) { + INTERP_F( t, dst->tu0, out->tu0 * wout, in->tu0 * win ); + INTERP_F( t, dst->tv0, out->tv0 * wout, in->tv0 * win ); + if (IND & TDFX_PTEX_BIT) { + INTERP_F( t, dst->tq0, out->tq0 * wout, in->tq0 * win ); + } + } + if (IND & TDFX_TEX1_BIT) { + INTERP_F( t, dst->tu1, out->tu1 * wout, in->tu1 * win ); + INTERP_F( t, dst->tv1, out->tv1 * wout, in->tv1 * win ); + if (IND & TDFX_PTEX_BIT) { + INTERP_F( t, dst->tq1, out->tq1 * wout, in->tq1 * win ); + } + } +} + + +static void TAG(init)( void ) +{ +/* fprintf(stderr, "%s\n", __FUNCTION__); */ + + setup_tab[IND].emit = TAG(emit); + setup_tab[IND].check_tex_sizes = TAG(check_tex_sizes); + setup_tab[IND].interp = TAG(interp); + setup_tab[IND].copy_pv = copy_pv; + + if (IND & TDFX_TEX1_BIT) { + if (IND & TDFX_PTEX_BIT) { + setup_tab[IND].vertex_format = TDFX_LAYOUT_PROJ2; + } + else { + setup_tab[IND].vertex_format = TDFX_LAYOUT_MULTI; + } + } + else if (IND & TDFX_TEX0_BIT) { + if (IND & TDFX_PTEX_BIT) { + setup_tab[IND].vertex_format = TDFX_LAYOUT_PROJ1; + } else { + setup_tab[IND].vertex_format = TDFX_LAYOUT_SINGLE; + } + } + else if (IND & TDFX_W_BIT) { + setup_tab[IND].vertex_format = TDFX_LAYOUT_NOTEX; + } else { + setup_tab[IND].vertex_format = TDFX_LAYOUT_TINY; + } +} + + +#undef IND +#undef TAG |