diff options
| -rw-r--r-- | src/mesa/swrast/s_span.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c index 905cf3d5501..85d30cc929e 100644 --- a/src/mesa/swrast/s_span.c +++ b/src/mesa/swrast/s_span.c @@ -784,14 +784,47 @@ clip_span( GLcontext *ctx, SWspan *span ) * For arrays of values, shift them left. */ for (i = 0; i < FRAG_ATTRIB_MAX; i++) { + if (span->interpMask & (1 << i)) { + GLuint j; + for (j = 0; j < 4; j++) { + span->attrStart[i][j] += leftClip * span->attrStepX[i][j]; + } + } + } + + span->red += leftClip * span->redStep; + span->green += leftClip * span->greenStep; + span->blue += leftClip * span->blueStep; + span->alpha += leftClip * span->alphaStep; + span->index += leftClip * span->indexStep; + span->z += leftClip * span->zStep; + span->intTex[0] += leftClip * span->intTexStep[0]; + span->intTex[1] += leftClip * span->intTexStep[1]; + +#define SHIFT_ARRAY(ARRAY, SHIFT, LEN) \ + memcpy(ARRAY, ARRAY + (SHIFT), (LEN) * sizeof(ARRAY[0])) + + for (i = 0; i < FRAG_ATTRIB_MAX; i++) { if (span->arrayAttribs & (1 << i)) { /* shift array elements left by 'leftClip' */ - _mesa_memcpy(span->array->attribs[i], - span->array->attribs[i] + leftClip, - (n - leftClip) * 4 * sizeof(GLfloat)); + SHIFT_ARRAY(span->array->attribs[i], leftClip, n - leftClip); } } + SHIFT_ARRAY(span->array->mask, leftClip, n - leftClip); + SHIFT_ARRAY(span->array->rgba8, leftClip, n - leftClip); + SHIFT_ARRAY(span->array->rgba16, leftClip, n - leftClip); + SHIFT_ARRAY(span->array->x, leftClip, n - leftClip); + SHIFT_ARRAY(span->array->y, leftClip, n - leftClip); + SHIFT_ARRAY(span->array->z, leftClip, n - leftClip); + SHIFT_ARRAY(span->array->index, leftClip, n - leftClip); + for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { + SHIFT_ARRAY(span->array->lambda[i], leftClip, n - leftClip); + } + SHIFT_ARRAY(span->array->coverage, leftClip, n - leftClip); + +#undef SHIFT_ARRAY + span->leftClip = leftClip; span->x = xmin; span->end -= leftClip; |