From 1c86c7ad9c38b5ef1baa19677b78076889b60e7f Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Thu, 23 Dec 2004 20:26:59 +0000 Subject: [PATCH] Simplified and optimized _savage_texnorm_stage. --- src/mesa/drivers/dri/savage/savagetris.c | 43 ++++-------------------- 1 file changed, 7 insertions(+), 36 deletions(-) diff --git a/src/mesa/drivers/dri/savage/savagetris.c b/src/mesa/drivers/dri/savage/savagetris.c index 666863a8ee7..69633ecae75 100644 --- a/src/mesa/drivers/dri/savage/savagetris.c +++ b/src/mesa/drivers/dri/savage/savagetris.c @@ -1148,37 +1148,17 @@ static GLboolean run_texnorm_stage( GLcontext *ctx, GLint j; if (normalizeS && normalizeT) { - /* determine extreme values in S and T */ - GLfloat minS = in[0], maxS = in[0], minT = in[1], maxT = in[1]; - GLfloat correctionS, correctionT; - in = (GLfloat *)((GLubyte *)in + instride); - for (j = 1; j < VB->Count; ++j) { - if (in[0] < minS) minS = in[0]; - else if (in[0] > maxS) maxS = in[0]; - if (in[1] < minT) minT = in[1]; - else if (in[1] > maxT) maxT = in[1]; - in = (GLfloat *)((GLubyte *)in + instride); - } - correctionS = -floor((minS + maxS) * 0.5 + 0.5); - correctionT = -floor((minT + maxT) * 0.5 + 0.5); - in = (GLfloat *)VB->TexCoordPtr[i]->data; + /* take first texcoords as rough estimate of mean value */ + GLfloat correctionS = -floor(in[0]+0.5); + GLfloat correctionT = -floor(in[1]+0.5); for (j = 0; j < VB->Count; ++j) { out[j][0] = in[0] + correctionS; out[j][1] = in[1] + correctionT; in = (GLfloat *)((GLubyte *)in + instride); } } else if (normalizeS) { - /* determine extreme values in S */ - GLfloat minS = in[0], maxS = in[0]; - GLfloat correctionS; - in = (GLfloat *)((GLubyte *)in + instride); - for (j = 1; j < VB->Count; ++j) { - if (in[0] < minS) minS = in[0]; - else if (in[0] > maxS) maxS = in[0]; - in = (GLfloat *)((GLubyte *)in + instride); - } - correctionS = -floor((minS + maxS) * 0.5 + 0.5); - in = (GLfloat *)VB->TexCoordPtr[i]->data; + /* take first texcoords as rough estimate of mean value */ + GLfloat correctionS = -floor(in[0]+0.5); if (reallyEnabled & TEXTURE_2D_BIT) { for (j = 0; j < VB->Count; ++j) { out[j][0] = in[0] + correctionS; @@ -1192,17 +1172,8 @@ static GLboolean run_texnorm_stage( GLcontext *ctx, } } } else if (normalizeT) { - /* determine extreme values in T */ - GLfloat minT = in[1], maxT = in[1]; - GLfloat correctionT; - in = (GLfloat *)((GLubyte *)in + instride); - for (j = 1; j < VB->Count; ++j) { - if (in[1] < minT) minT = in[1]; - else if (in[1] > maxT) maxT = in[1]; - in = (GLfloat *)((GLubyte *)in + instride); - } - correctionT = -floor((minT + maxT) * 0.5 + 0.5); - in = (GLfloat *)VB->TexCoordPtr[i]->data; + /* take first texcoords as rough estimate of mean value */ + GLfloat correctionT = -floor(in[1]+0.5); for (j = 0; j < VB->Count; ++j) { out[j][0] = in[0]; out[j][1] = in[1] + correctionT; -- 2.30.2