diff options
Diffstat (limited to 'src/mesa/main/pixel.c')
| -rw-r--r-- | src/mesa/main/pixel.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c index 12097397fb..efd89cadd4 100644 --- a/src/mesa/main/pixel.c +++ b/src/mesa/main/pixel.c @@ -1,4 +1,4 @@ -/* $Id: pixel.c,v 1.19 2000/11/22 07:32:17 joukj Exp $ */ +/* $Id: pixel.c,v 1.20 2000/11/28 00:07:51 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -653,38 +653,34 @@ _mesa_PixelTransferi( GLenum pname, GLint param ) * Apply scale and bias factors to an array of RGBA pixels. */ void -_mesa_scale_and_bias_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4]) +_mesa_scale_and_bias_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4], + GLfloat rScale, GLfloat gScale, + GLfloat bScale, GLfloat aScale, + GLfloat rBias, GLfloat gBias, + GLfloat bBias, GLfloat aBias) { - if (ctx->Pixel.RedScale != 1.0 || ctx->Pixel.RedBias != 0.0) { - const GLfloat scale = ctx->Pixel.RedScale; - const GLfloat bias = ctx->Pixel.RedBias; + if (rScale != 1.0 || rBias != 0.0) { GLuint i; for (i = 0; i < n; i++) { - rgba[i][RCOMP] = rgba[i][RCOMP] * scale + bias; + rgba[i][RCOMP] = rgba[i][RCOMP] * rScale + rBias; } } - if (ctx->Pixel.GreenScale != 1.0 || ctx->Pixel.GreenBias != 0.0) { - const GLfloat scale = ctx->Pixel.GreenScale; - const GLfloat bias = ctx->Pixel.GreenBias; + if (gScale != 1.0 || gBias != 0.0) { GLuint i; for (i = 0; i < n; i++) { - rgba[i][GCOMP] = rgba[i][GCOMP] * scale + bias; + rgba[i][GCOMP] = rgba[i][GCOMP] * gScale + gBias; } } - if (ctx->Pixel.BlueScale != 1.0 || ctx->Pixel.BlueBias != 0.0) { - const GLfloat scale = ctx->Pixel.BlueScale; - const GLfloat bias = ctx->Pixel.BlueBias; + if (bScale != 1.0 || bBias != 0.0) { GLuint i; for (i = 0; i < n; i++) { - rgba[i][BCOMP] = rgba[i][BCOMP] * scale + bias; + rgba[i][BCOMP] = rgba[i][BCOMP] * bScale + bBias; } } - if (ctx->Pixel.AlphaScale != 1.0 || ctx->Pixel.AlphaBias != 0.0) { - const GLfloat scale = ctx->Pixel.AlphaScale; - const GLfloat bias = ctx->Pixel.AlphaBias; + if (aScale != 1.0 || aBias != 0.0) { GLuint i; for (i = 0; i < n; i++) { - rgba[i][ACOMP] = rgba[i][ACOMP] * scale + bias; + rgba[i][ACOMP] = rgba[i][ACOMP] * aScale + aBias; } } } |