/**
* Initialize the context's PIXEL attribute group.
*/
void
_mesa_init_pixel( struct gl_context *ctx )
{
/* Pixel group */
ctx->Pixel.RedBias = 0.0;
ctx->Pixel.RedScale = 1.0;
ctx->Pixel.GreenBias = 0.0;
ctx->Pixel.GreenScale = 1.0;
ctx->Pixel.BlueBias = 0.0;
ctx->Pixel.BlueScale = 1.0;
ctx->Pixel.AlphaBias = 0.0;
ctx->Pixel.AlphaScale = 1.0;
ctx->Pixel.DepthBias = 0.0;
ctx->Pixel.DepthScale = 1.0;
ctx->Pixel.IndexOffset = 0;
ctx->Pixel.IndexShift = 0;
ctx->Pixel.ZoomX = 1.0;
ctx->Pixel.ZoomY = 1.0;
ctx->Pixel.MapColorFlag = GL_FALSE;
ctx->Pixel.MapStencilFlag = GL_FALSE;
init_pixelmap(&ctx->PixelMaps.StoS);
init_pixelmap(&ctx->PixelMaps.ItoI);
init_pixelmap(&ctx->PixelMaps.ItoR);
init_pixelmap(&ctx->PixelMaps.ItoG);
init_pixelmap(&ctx->PixelMaps.ItoB);
init_pixelmap(&ctx->PixelMaps.ItoA);
init_pixelmap(&ctx->PixelMaps.RtoR);
init_pixelmap(&ctx->PixelMaps.GtoG);
init_pixelmap(&ctx->PixelMaps.BtoB);
init_pixelmap(&ctx->PixelMaps.AtoA);
if (ctx->Visual.doubleBufferMode) {
ctx->Pixel.ReadBuffer = GL_BACK;
}
else {
ctx->Pixel.ReadBuffer = GL_FRONT;
}
/* Miscellaneous */
ctx->_ImageTransferState = 0;
}
/**
* Initialize the context's PIXEL attribute group.
*/
void
_mesa_init_pixel( GLcontext *ctx )
{
int i;
/* Pixel group */
ctx->Pixel.RedBias = 0.0;
ctx->Pixel.RedScale = 1.0;
ctx->Pixel.GreenBias = 0.0;
ctx->Pixel.GreenScale = 1.0;
ctx->Pixel.BlueBias = 0.0;
ctx->Pixel.BlueScale = 1.0;
ctx->Pixel.AlphaBias = 0.0;
ctx->Pixel.AlphaScale = 1.0;
ctx->Pixel.DepthBias = 0.0;
ctx->Pixel.DepthScale = 1.0;
ctx->Pixel.IndexOffset = 0;
ctx->Pixel.IndexShift = 0;
ctx->Pixel.ZoomX = 1.0;
ctx->Pixel.ZoomY = 1.0;
ctx->Pixel.MapColorFlag = GL_FALSE;
ctx->Pixel.MapStencilFlag = GL_FALSE;
init_pixelmap(&ctx->PixelMaps.StoS);
init_pixelmap(&ctx->PixelMaps.ItoI);
init_pixelmap(&ctx->PixelMaps.ItoR);
init_pixelmap(&ctx->PixelMaps.ItoG);
init_pixelmap(&ctx->PixelMaps.ItoB);
init_pixelmap(&ctx->PixelMaps.ItoA);
init_pixelmap(&ctx->PixelMaps.RtoR);
init_pixelmap(&ctx->PixelMaps.GtoG);
init_pixelmap(&ctx->PixelMaps.BtoB);
init_pixelmap(&ctx->PixelMaps.AtoA);
ctx->Pixel.HistogramEnabled = GL_FALSE;
ctx->Pixel.MinMaxEnabled = GL_FALSE;
ASSIGN_4V(ctx->Pixel.PostColorMatrixScale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.PostColorMatrixBias, 0.0, 0.0, 0.0, 0.0);
for (i = 0; i < COLORTABLE_MAX; i++) {
ASSIGN_4V(ctx->Pixel.ColorTableScale[i], 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.ColorTableBias[i], 0.0, 0.0, 0.0, 0.0);
ctx->Pixel.ColorTableEnabled[i] = GL_FALSE;
}
ctx->Pixel.Convolution1DEnabled = GL_FALSE;
ctx->Pixel.Convolution2DEnabled = GL_FALSE;
ctx->Pixel.Separable2DEnabled = GL_FALSE;
for (i = 0; i < 3; i++) {
ASSIGN_4V(ctx->Pixel.ConvolutionBorderColor[i], 0.0, 0.0, 0.0, 0.0);
ctx->Pixel.ConvolutionBorderMode[i] = GL_REDUCE;
ASSIGN_4V(ctx->Pixel.ConvolutionFilterScale[i], 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.ConvolutionFilterBias[i], 0.0, 0.0, 0.0, 0.0);
}
for (i = 0; i < MAX_CONVOLUTION_WIDTH * MAX_CONVOLUTION_WIDTH * 4; i++) {
ctx->Convolution1D.Filter[i] = 0.0;
ctx->Convolution2D.Filter[i] = 0.0;
ctx->Separable2D.Filter[i] = 0.0;
}
ASSIGN_4V(ctx->Pixel.PostConvolutionScale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.PostConvolutionBias, 0.0, 0.0, 0.0, 0.0);
/* GL_SGI_texture_color_table */
ASSIGN_4V(ctx->Pixel.TextureColorTableScale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.TextureColorTableBias, 0.0, 0.0, 0.0, 0.0);
if (ctx->Visual.doubleBufferMode) {
ctx->Pixel.ReadBuffer = GL_BACK;
}
else {
ctx->Pixel.ReadBuffer = GL_FRONT;
}
/* Miscellaneous */
ctx->_ImageTransferState = 0;
}