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implemented new ImageTransferState bitmask

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This commit is contained in:
Brian Paul
2000-08-21 14:22:24 +00:00
parent b1097f24a8
commit fa4525e289
9 changed files with 289 additions and 226 deletions
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62
src/mesa/main/state.c
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@@ -1,8 +1,8 @@
/* $Id: state.c,v 1.21 2000/06/30 14:14:37 brianp Exp $ */
/* $Id: state.c,v 1.22 2000/08/21 14:22:24 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
* Version: 3.5
*
* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
*
@@ -1230,3 +1230,61 @@ void gl_update_state( GLcontext *ctx )
gl_update_pipelines(ctx);
ctx->NewState = 0;
}
/*
* Return a bitmask of IMAGE_*_BIT flags which to indicate which
* pixel transfer operations are enabled.
*/
void
_mesa_update_image_transfer_state(GLcontext *ctx)
{
GLuint mask = 0;
if (ctx->Pixel.RedScale != 1.0F || ctx->Pixel.RedBias != 0.0F ||
ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F ||
ctx->Pixel.BlueScale != 1.0F || ctx->Pixel.BlueBias != 0.0F ||
ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F)
mask |= IMAGE_SCALE_BIAS_BIT;
if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset)
mask |= IMAGE_SHIFT_OFFSET_BIT;
if (ctx->Pixel.MapColorFlag)
mask |= IMAGE_MAP_COLOR_BIT;
if (ctx->Pixel.ColorTableEnabled)
mask |= IMAGE_COLOR_TABLE_BIT;
if (ctx->Pixel.Convolution1DEnabled ||
ctx->Pixel.Convolution2DEnabled ||
ctx->Pixel.Separable2DEnabled)
mask |= IMAGE_CONVOLUTION_BIT;
if (ctx->Pixel.PostConvolutionColorTableEnabled)
mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT;
if (ctx->ColorMatrix.type != MATRIX_IDENTITY ||
ctx->Pixel.PostColorMatrixScale[0] != 1.0F ||
ctx->Pixel.PostColorMatrixBias[0] != 0.0F ||
ctx->Pixel.PostColorMatrixScale[1] != 1.0F ||
ctx->Pixel.PostColorMatrixBias[1] != 0.0F ||
ctx->Pixel.PostColorMatrixScale[2] != 1.0F ||
ctx->Pixel.PostColorMatrixBias[2] != 0.0F ||
ctx->Pixel.PostColorMatrixScale[3] != 1.0F ||
ctx->Pixel.PostColorMatrixBias[3] != 0.0F)
mask |= IMAGE_COLOR_MATRIX_BIT;
if (ctx->Pixel.PostColorMatrixColorTableEnabled)
mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT;
if (ctx->Pixel.HistogramEnabled)
mask |= IMAGE_HISTOGRAM_BIT;
if (ctx->Pixel.MinMaxEnabled)
mask |= IMAGE_MIN_MAX_BIT;
ctx->ImageTransferState = mask;
}