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Diffstat (limited to 'src/mesa/drivers/dri/sis/sis_tritmp.h')
-rw-r--r--src/mesa/drivers/dri/sis/sis_tritmp.h232
1 files changed, 206 insertions, 26 deletions
diff --git a/src/mesa/drivers/dri/sis/sis_tritmp.h b/src/mesa/drivers/dri/sis/sis_tritmp.h
index bd2ecd1c4c..e670a5bf76 100644
--- a/src/mesa/drivers/dri/sis/sis_tritmp.h
+++ b/src/mesa/drivers/dri/sis/sis_tritmp.h
@@ -1,32 +1,32 @@
/* $XFree86*/ /* -*- c-basic-offset: 3 -*- */
-/**************************************************************************
-
-Copyright 2003 Eric Anholt
-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
-ERIC ANHOLT 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.
-
-**************************************************************************/
-
/*
+ * Copyright 2005 Eric Anholt
+ * 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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:
- * Eric Anholt <anholt@FreeBSD.org>
+ * Eric Anholt <anholt@FreeBSD.org>
+ * Jim Duchek <jim@linuxpimps.com> -- Utah GLX 6326 code
+ * Alan Cox <alan@redhat.com> -- 6326 Debugging
+ *
*/
static void TAG(sis_draw_tri_mmio)(sisContextPtr smesa, char *verts)
@@ -59,11 +59,191 @@ static void TAG(sis_draw_point_mmio)(sisContextPtr smesa, char *verts)
SIS_MMIO_WRITE_VERTEX(v0, 1, 1);
}
+#if !(SIS_STATES & VERT_UV1)
+static void TAG(sis6326_draw_tri_mmio)(sisContextPtr smesa, char *verts)
+{
+ sisVertexPtr v0 = (sisVertexPtr)verts;
+ sisVertexPtr v1 = (sisVertexPtr)(verts + smesa->vertex_size * 4);
+ sisVertexPtr v2 = (sisVertexPtr)(verts + smesa->vertex_size * 4 * 2);
+ GLfloat x0, x1, x2;
+ GLfloat y0, y1, y2;
+ GLfloat delt02, diffx02, diffy02, diffy12;
+ GLint dwPrimitiveSet = smesa->dwPrimitiveSet;
+ sisVertex tv0, tv1, tv2;
+
+ /* XXX Culling? */
+
+ tv0 = *v0;
+ tv1 = *v1;
+ tv2 = *v2;
+ tv0.v.y = Y_FLIP(tv0.v.y);
+ tv1.v.y = Y_FLIP(tv1.v.y);
+ tv2.v.y = Y_FLIP(tv2.v.y);
+ v0 = &tv0;
+ v1 = &tv1;
+ v2 = &tv2;
+
+ /* Cull polygons we won't draw. The hardware draws funky things if it
+ is fed these */
+ if((((v1->v.x - v0->v.x) * (v0->v.y - v2->v.y)) +
+ ((v1->v.y - v0->v.y) * (v2->v.x - v0->v.x))) < 0)
+ return;
+ y0 = v0->v.y;
+ y1 = v1->v.y;
+ y2 = v2->v.y;
+
+
+ if (y0 > y1) {
+ if (y1 > y2) {
+ x0 = v0->v.x;
+ x1 = v1->v.x;
+ x2 = v2->v.x;
+ dwPrimitiveSet |= OP_6326_3D_ATOP | OP_6326_3D_BMID | OP_6326_3D_CBOT;
+ if ((SIS_STATES & VERT_SMOOTH) == 0)
+ dwPrimitiveSet |= OP_6326_3D_SHADE_FLAT_BOT;
+ } else {
+ if (y0 > y2) {
+ x0 = v0->v.x;
+ x1 = v2->v.x;
+ y1 = v2->v.y;
+ dwPrimitiveSet |= OP_6326_3D_ATOP | OP_6326_3D_CMID |
+ OP_6326_3D_BBOT;
+ if ((SIS_STATES & VERT_SMOOTH) == 0)
+ dwPrimitiveSet |= OP_6326_3D_SHADE_FLAT_MID;
+ } else {
+ x0 = v2->v.x;
+ y0 = v2->v.y;
+ x1 = v0->v.x;
+ y1 = v0->v.y;
+ dwPrimitiveSet |= OP_6326_3D_CTOP | OP_6326_3D_AMID |
+ OP_6326_3D_BBOT;
+ if ((SIS_STATES & VERT_SMOOTH) == 0)
+ dwPrimitiveSet |= OP_6326_3D_SHADE_FLAT_TOP;
+ }
+ x2 = v1->v.x;
+ y2 = v1->v.y;
+ }
+ } else {
+ if (y0 > y2) {
+ x0 = v1->v.x;
+ y0 = v1->v.y;
+ x1 = v0->v.x;
+ y1 = v0->v.y;
+ x2 = v2->v.x;
+ dwPrimitiveSet |= OP_6326_3D_BTOP | OP_6326_3D_AMID | OP_6326_3D_CBOT;
+ if ((SIS_STATES & VERT_SMOOTH) == 0)
+ dwPrimitiveSet |= OP_6326_3D_SHADE_FLAT_BOT;
+ } else {
+ if (y1 > y2) {
+ x0 = v1->v.x;
+ y0 = v1->v.y;
+ x1 = v2->v.x;
+ y1 = v2->v.y;
+ dwPrimitiveSet |= OP_6326_3D_BTOP | OP_6326_3D_CMID |
+ OP_6326_3D_ABOT;
+ if ((SIS_STATES & VERT_SMOOTH) == 0)
+ dwPrimitiveSet |= OP_6326_3D_SHADE_FLAT_MID;
+ } else {
+ x0 = v2->v.x;
+ y0 = v2->v.y;
+ x1 = v1->v.x;
+ dwPrimitiveSet |= OP_6326_3D_CTOP | OP_6326_3D_BMID |
+ OP_6326_3D_ABOT;
+ if ((SIS_STATES & VERT_SMOOTH) == 0)
+ dwPrimitiveSet |= OP_6326_3D_SHADE_FLAT_TOP;
+ }
+ x2 = v0->v.x;
+ y2 = v0->v.y;
+ }
+ }
+
+ if (x1 <= x0 && x1 <= x2) {
+ dwPrimitiveSet |= OP_3D_DIRECTION_LEFT;
+ } else if (x1 < x0 || x1 < x2) {
+ GLfloat tmp;
+
+ diffx02 = x0 - x2;
+ diffy02 = y0 - y2;
+ diffy12 = y1 - y2;
+
+ delt02 = diffx02 / diffy02;
+ tmp = x1 - (diffy12 * delt02 + x2);
+
+ if (tmp <= 0.0)
+ dwPrimitiveSet |= OP_3D_DIRECTION_LEFT;
+ }
+
+ tv0 = *v0;
+ tv1 = *v1;
+ tv2 = *v2;
+ tv0.v.y = Y_FLIP(tv0.v.y);
+ tv1.v.y = Y_FLIP(tv1.v.y);
+ tv2.v.y = Y_FLIP(tv2.v.y);
+ v0 = &tv0;
+ v1 = &tv1;
+ v2 = &tv2;
+
+ y0 = v0->v.y;
+ y1 = v1->v.y;
+ y2 = v2->v.y;
+
+/* fprintf(stderr, "Vertex0 %f %f %f\n", v0->v.x, v0->v.y, v0->v.z);
+ fprintf(stderr, "Vertex1 %f %f %f\n", v1->v.x, v1->v.y, v1->v.z);
+ fprintf(stderr, "Vertex2 %f %f %f\n", v2->v.x, v2->v.y, v2->v.z);*/
+ mWait3DCmdQueue(MMIO_VERT_REG_COUNT * 3 + 1);
+ MMIO(REG_3D_PrimitiveSet, dwPrimitiveSet);
+ SIS_MMIO_WRITE_VERTEX(v0, 0, 0);
+ SIS_MMIO_WRITE_VERTEX(v1, 1, 0);
+ SIS_MMIO_WRITE_VERTEX(v2, 2, 1);
+ mEndPrimitive();
+}
+
+static void TAG(sis6326_draw_line_mmio)(sisContextPtr smesa, char *verts)
+{
+ sisVertexPtr v0 = (sisVertexPtr)verts;
+ sisVertexPtr v1 = (sisVertexPtr)(verts + smesa->vertex_size * 4);
+ GLint dwPrimitiveSet = smesa->dwPrimitiveSet;
+
+ if (abs(v0->v.y - v1->v.y) > abs(v0->v.x - v1->v.x))
+ {
+ dwPrimitiveSet |= OP_3D_DIRECTION_VERTICAL;
+ if (v0->v.y > v1->v.y)
+ dwPrimitiveSet |= OP_6326_3D_ATOP | OP_6326_3D_BBOT;
+ else
+ dwPrimitiveSet |= OP_6326_3D_BTOP | OP_6326_3D_ABOT;
+ } else {
+ if (v0->v.y > v1->v.y)
+ dwPrimitiveSet |= OP_6326_3D_BTOP | OP_6326_3D_ABOT;
+ else
+ dwPrimitiveSet |= OP_6326_3D_ATOP | OP_6326_3D_BBOT;
+ }
+
+ mWait3DCmdQueue (MMIO_VERT_REG_COUNT * 2 + 1);
+ MMIO(REG_3D_PrimitiveSet, dwPrimitiveSet);
+ SIS_MMIO_WRITE_VERTEX(v0, 0, 0);
+ SIS_MMIO_WRITE_VERTEX(v1, 1, 1);
+}
+
+static void TAG(sis6326_draw_point_mmio)(sisContextPtr smesa, char *verts)
+{
+ sisVertexPtr v0 = (sisVertexPtr)verts;
+
+ mWait3DCmdQueue (MMIO_VERT_REG_COUNT * 1 + 1);
+ MMIO(REG_3D_PrimitiveSet, smesa->dwPrimitiveSet | OP_6326_3D_ATOP);
+ SIS_MMIO_WRITE_VERTEX(v0, 1, 1);
+}
+#endif
+
static __inline void TAG(sis_vert_init)( void )
{
sis_tri_func_mmio[SIS_STATES] = TAG(sis_draw_tri_mmio);
sis_line_func_mmio[SIS_STATES] = TAG(sis_draw_line_mmio);
sis_point_func_mmio[SIS_STATES] = TAG(sis_draw_point_mmio);
+#if !(SIS_STATES & VERT_UV1)
+ sis_tri_func_mmio[SIS_STATES | VERT_6326] = TAG(sis6326_draw_tri_mmio);
+ sis_line_func_mmio[SIS_STATES | VERT_6326] = TAG(sis6326_draw_line_mmio);
+ sis_point_func_mmio[SIS_STATES | VERT_6326] = TAG(sis6326_draw_point_mmio);
+#endif
}
#undef TAG
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 01:08:43 +0000