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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.h266
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
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