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path: root/src/mesa/drivers/dri/unichrome/via_vb_cliptmp.h
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Diffstat (limited to 'src/mesa/drivers/dri/unichrome/via_vb_cliptmp.h')
-rw-r--r--src/mesa/drivers/dri/unichrome/via_vb_cliptmp.h269
1 files changed, 0 insertions, 269 deletions
diff --git a/src/mesa/drivers/dri/unichrome/via_vb_cliptmp.h b/src/mesa/drivers/dri/unichrome/via_vb_cliptmp.h
deleted file mode 100644
index 84ac70ffc1..0000000000
--- a/src/mesa/drivers/dri/unichrome/via_vb_cliptmp.h
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
- * Copyright 2001-2003 S3 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
- * 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
- * VIA, S3 GRAPHICS, AND/OR ITS 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.
- */
-
-
-#define CLIP_DOTPROD(K, A, B, C, D) X(K) * A + Y(K) * B + Z(K) * C + W(K) * D
-
-#define POLY_CLIP(PLANE, A, B, C, D) \
-do { \
- if (mask & PLANE) { \
- GLuint idxPrev = inlist[0]; \
- GLfloat dpPrev = CLIP_DOTPROD(idxPrev, A, B, C, D); \
- GLuint outcount = 0; \
- GLuint i; \
- \
- inlist[n] = inlist[0]; /* prevent rotation of vertices */ \
- for (i = 1; i <= n; i++) { \
- GLuint idx = inlist[i]; \
- GLfloat dp = CLIP_DOTPROD(idx, A, B, C, D); \
- \
- clipmask[idxPrev] |= PLANE; \
- if (!NEGATIVE(dpPrev)) { \
- outlist[outcount++] = idxPrev; \
- clipmask[idxPrev] &= ~PLANE; \
- } \
- \
- if (DIFFERENT_SIGNS(dp, dpPrev)) { \
- GLuint newvert = VB->LastClipped++; \
- VB->ClipMask[newvert] = 0; \
- outlist[outcount++] = newvert; \
- if (NEGATIVE(dp)) { \
- /* Going out of bounds. Avoid division by zero as we \
- * know dp != dpPrev from DIFFERENT_SIGNS, above. \
- */ \
- GLfloat t = dp / (dp - dpPrev); \
- INTERP_4F(t, coord[newvert], coord[idx], coord[idxPrev]); \
- interp(ctx, t, newvert, idx, idxPrev, GL_TRUE); \
- } \
- else { \
- /* Coming back in. \
- */ \
- GLfloat t = dpPrev / (dpPrev - dp); \
- INTERP_4F(t, coord[newvert], coord[idxPrev], coord[idx]); \
- interp(ctx, t, newvert, idxPrev, idx, GL_FALSE); \
- } \
- } \
- \
- idxPrev = idx; \
- dpPrev = dp; \
- } \
- \
- if (outcount < 3) \
- return; \
- \
- { \
- GLuint *tmp = inlist; \
- inlist = outlist; \
- outlist = tmp; \
- n = outcount; \
- } \
- } \
-} while (0)
-
-
-#define LINE_CLIP(PLANE, A, B, C, D) \
-do { \
- if (mask & PLANE) { \
- GLfloat dpI = CLIP_DOTPROD(ii, A, B, C, D); \
- GLfloat dpJ = CLIP_DOTPROD(jj, A, B, C, D); \
- \
- if (DIFFERENT_SIGNS(dpI, dpJ)) { \
- GLuint newvert = VB->LastClipped++; \
- VB->ClipMask[newvert] = 0; \
- if (NEGATIVE(dpJ)) { \
- GLfloat t = dpI / (dpI - dpJ); \
- VB->ClipMask[jj] |= PLANE; \
- INTERP_4F(t, coord[newvert], coord[ii], coord[jj]); \
- interp(ctx, t, newvert, ii, jj, GL_FALSE); \
- jj = newvert; \
- } \
- else { \
- GLfloat t = dpJ / (dpJ - dpI); \
- VB->ClipMask[ii] |= PLANE; \
- INTERP_4F(t, coord[newvert], coord[jj], coord[ii]); \
- interp(ctx, t, newvert, jj, ii, GL_FALSE); \
- ii = newvert; \
- } \
- } \
- else if (NEGATIVE(dpI)) \
- return; \
- } \
-} while (0)
-
-
-/* Clip a line against the viewport and user clip planes.
- */
-static INLINE void
-TAG(clip_line)(GLcontext *ctx, GLuint i, GLuint j, GLubyte mask)
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
- tnl_interp_func interp = tnl->Driver.Render.Interp;
- GLfloat (*coord)[4] = VB->ClipPtr->data;
- GLuint ii = i, jj = j, p;
- if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
- VB->LastClipped = VB->Count;
-
- if (mask & 0x3f) {
- LINE_CLIP(CLIP_RIGHT_BIT, -1, 0, 0, 1);
- LINE_CLIP(CLIP_LEFT_BIT, 1, 0, 0, 1);
- LINE_CLIP(CLIP_TOP_BIT, 0, -1, 0, 1);
- LINE_CLIP(CLIP_BOTTOM_BIT, 0, 1, 0, 1);
- LINE_CLIP(CLIP_FAR_BIT, 0, 0, -1, 1);
- LINE_CLIP(CLIP_NEAR_BIT, 0, 0, 1, 1);
- }
-
- if (mask & CLIP_USER_BIT) {
- for (p = 0; p < MAX_CLIP_PLANES; p++) {
- if (ctx->Transform.ClipPlanesEnabled & (1 << p)) {
- GLfloat a = ctx->Transform._ClipUserPlane[p][0];
- GLfloat b = ctx->Transform._ClipUserPlane[p][1];
- GLfloat c = ctx->Transform._ClipUserPlane[p][2];
- GLfloat d = ctx->Transform._ClipUserPlane[p][3];
- LINE_CLIP(CLIP_USER_BIT, a, b, c, d);
- }
- }
- }
-
- if ((ctx->_TriangleCaps & DD_FLATSHADE) && j != jj)
- tnl->Driver.Render.CopyPV(ctx, jj, j);
-
- tnl->Driver.Render.ClippedLine(ctx, ii, jj);
- if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
-}
-
-
-/* Clip a triangle against the viewport and user clip planes.
- */
-static INLINE void
-TAG(clip_tri)(GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLubyte mask)
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
- tnl_interp_func interp = tnl->Driver.Render.Interp;
- GLfloat (*coord)[4] = VB->ClipPtr->data;
- GLuint pv = v2;
- GLuint vlist[2][MAX_CLIPPED_VERTICES];
- GLuint *inlist = vlist[0], *outlist = vlist[1];
- GLuint p;
- GLubyte *clipmask = VB->ClipMask;
- GLuint n = 3;
-
- ASSIGN_3V(inlist, v2, v0, v1); /* pv rotated to slot zero */
-
- VB->LastClipped = VB->Count;
-
- if (mask & 0x3f) {
- POLY_CLIP(CLIP_RIGHT_BIT, -1, 0, 0, 1);
- POLY_CLIP(CLIP_LEFT_BIT, 1, 0, 0, 1);
- POLY_CLIP(CLIP_TOP_BIT, 0, -1, 0, 1);
- POLY_CLIP(CLIP_BOTTOM_BIT, 0, 1, 0, 1);
- POLY_CLIP(CLIP_FAR_BIT, 0, 0, -1, 1);
- POLY_CLIP(CLIP_NEAR_BIT, 0, 0, 1, 1);
- }
-
- if (mask & CLIP_USER_BIT) {
- for (p = 0; p < MAX_CLIP_PLANES; p++) {
- if (ctx->Transform.ClipPlanesEnabled & (1 << p)) {
- GLfloat a = ctx->Transform._ClipUserPlane[p][0];
- GLfloat b = ctx->Transform._ClipUserPlane[p][1];
- GLfloat c = ctx->Transform._ClipUserPlane[p][2];
- GLfloat d = ctx->Transform._ClipUserPlane[p][3];
- POLY_CLIP(CLIP_USER_BIT, a, b, c, d);
- }
- }
- }
-
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
- if (pv != inlist[0]) {
- ASSERT(inlist[0] >= VB->Count);
- tnl->Driver.Render.CopyPV(ctx, inlist[0], pv);
- }
- }
-
- tnl->Driver.Render.ClippedPolygon(ctx, inlist, n);
-}
-
-
-/* Clip a quad against the viewport and user clip planes.
- */
-static INLINE void
-TAG(clip_quad)(GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint v3,
- GLubyte mask)
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
- tnl_interp_func interp = tnl->Driver.Render.Interp;
- GLfloat (*coord)[4] = VB->ClipPtr->data;
- GLuint pv = v3;
- GLuint vlist[2][MAX_CLIPPED_VERTICES];
- GLuint *inlist = vlist[0], *outlist = vlist[1];
- GLuint p;
- GLubyte *clipmask = VB->ClipMask;
- GLuint n = 4;
- if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
- ASSIGN_4V(inlist, v3, v0, v1, v2); /* pv rotated to slot zero */
-
- VB->LastClipped = VB->Count;
-
- if (mask & 0x3f) {
- POLY_CLIP(CLIP_RIGHT_BIT, -1, 0, 0, 1);
- POLY_CLIP(CLIP_LEFT_BIT, 1, 0, 0, 1);
- POLY_CLIP(CLIP_TOP_BIT, 0, -1, 0, 1);
- POLY_CLIP(CLIP_BOTTOM_BIT, 0, 1, 0, 1);
- POLY_CLIP(CLIP_FAR_BIT, 0, 0, -1, 1);
- POLY_CLIP(CLIP_NEAR_BIT, 0, 0, 1, 1);
- }
-
- if (mask & CLIP_USER_BIT) {
- for (p = 0; p < MAX_CLIP_PLANES; p++) {
- if (ctx->Transform.ClipPlanesEnabled & (1 << p)) {
- GLfloat a = ctx->Transform._ClipUserPlane[p][0];
- GLfloat b = ctx->Transform._ClipUserPlane[p][1];
- GLfloat c = ctx->Transform._ClipUserPlane[p][2];
- GLfloat d = ctx->Transform._ClipUserPlane[p][3];
- POLY_CLIP(CLIP_USER_BIT, a, b, c, d);
- }
- }
- }
-
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
- if (pv != inlist[0]) {
- ASSERT(inlist[0] >= VB->Count);
- tnl->Driver.Render.CopyPV(ctx, inlist[0], pv);
- }
- }
-
- tnl->Driver.Render.ClippedPolygon(ctx, inlist, n);
- if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
-}
-
-#undef W
-#undef Z
-#undef Y
-#undef X
-#undef SIZE
-#undef TAG
-#undef POLY_CLIP
-#undef LINE_CLIP
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