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-rw-r--r--src/mesa/main/colortab.c3
-rw-r--r--src/mesa/main/context.c6
-rw-r--r--src/mesa/main/convolve.c12
-rw-r--r--src/mesa/main/image.c32
-rw-r--r--src/mesa/main/image.h10
-rw-r--r--src/mesa/main/mtypes.h6
-rw-r--r--src/mesa/main/texstore.c5
7 files changed, 39 insertions, 35 deletions
diff --git a/src/mesa/main/colortab.c b/src/mesa/main/colortab.c
index af7aa00512f..862f210bb98 100644
--- a/src/mesa/main/colortab.c
+++ b/src/mesa/main/colortab.c
@@ -204,8 +204,7 @@ store_colortable_entries(GLcontext *ctx, struct gl_color_table *table,
tempTab, /* dest address */
format, type, data, /* src data */
&ctx->Unpack,
- 0, /* transfer ops */
- GL_FALSE); /* clamping */
+ IMAGE_CLAMP_BIT); /* transfer ops */
tableF = (GLfloat *) table->Table;
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 7de8115ad1c..951763642b3 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1133,6 +1133,12 @@ init_attrib_groups( GLcontext *ctx )
ctx->ErrorValue = (GLenum) GL_NO_ERROR;
ctx->CatchSignals = GL_TRUE;
ctx->_Facing = 0;
+#if CHAN_TYPE == GL_FLOAT
+ ctx->ClampFragmentColors = GL_FALSE; /* XXX temporary */
+#else
+ ctx->ClampFragmentColors = GL_TRUE;
+#endif
+ ctx->ClampVertexColors = GL_TRUE;
return GL_TRUE;
}
diff --git a/src/mesa/main/convolve.c b/src/mesa/main/convolve.c
index edb02482b39..c1965c5feb9 100644
--- a/src/mesa/main/convolve.c
+++ b/src/mesa/main/convolve.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.1
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -146,7 +146,7 @@ _mesa_ConvolutionFilter1D(GLenum target, GLenum internalFormat, GLsizei width, G
_mesa_unpack_color_span_float(ctx, width, GL_RGBA,
ctx->Convolution1D.Filter,
format, type, image, &ctx->Unpack,
- 0, GL_FALSE);
+ 0); /* transferOps */
/* apply scale and bias */
{
@@ -229,7 +229,7 @@ _mesa_ConvolutionFilter2D(GLenum target, GLenum internalFormat, GLsizei width, G
GLfloat *dst = ctx->Convolution2D.Filter + i * width * 4;
_mesa_unpack_color_span_float(ctx, width, GL_RGBA, dst,
format, type, src, &ctx->Unpack,
- 0, GL_FALSE);
+ 0); /* transferOps */
}
/* apply scale and bias */
@@ -810,7 +810,7 @@ _mesa_SeparableFilter2D(GLenum target, GLenum internalFormat, GLsizei width, GLs
_mesa_unpack_color_span_float(ctx, width, GL_RGBA,
ctx->Separable2D.Filter,
format, type, row, &ctx->Unpack,
- 0, GL_FALSE);
+ 0); /* transferOps */
/* apply scale and bias */
{
@@ -837,7 +837,7 @@ _mesa_SeparableFilter2D(GLenum target, GLenum internalFormat, GLsizei width, GLs
_mesa_unpack_color_span_float(ctx, width, GL_RGBA,
&ctx->Separable2D.Filter[colStart],
format, type, column, &ctx->Unpack,
- 0, GL_FALSE);
+ 0); /* transferOps */
/* apply scale and bias */
{
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index ba5b4ff17ad..5c117f6ce6a 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -972,8 +972,7 @@ _mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLuint transferOps,
if (transferOps & IMAGE_MIN_MAX_BIT) {
_mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba);
}
-
-#if CHAN_TYPE != GL_FLOAT
+ /* clamping to [0,1] */
if (transferOps & IMAGE_CLAMP_BIT) {
GLuint i;
for (i = 0; i < n; i++) {
@@ -983,7 +982,6 @@ _mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLuint transferOps,
rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F);
}
}
-#endif
}
@@ -1026,17 +1024,18 @@ _mesa_pack_rgba_span_float( GLcontext *ctx,
rgba = (const GLfloat (*)[4]) rgbaIn;
}
- /* XXX clamp rgba to [0,1]? */
-
if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) {
/* compute luminance values */
- for (i = 0; i < n; i++) {
- GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
-#if CHAN_TYPE == GL_FLOAT
- luminance[i] = sum;
-#else
- luminance[i] = CLAMP(sum, 0.0F, 1.0F);
-#endif
+ if (ctx->ClampFragmentColors) {
+ for (i = 0; i < n; i++) {
+ GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ luminance[i] = CLAMP(sum, 0.0F, 1.0F);
+ }
+ }
+ else {
+ for (i = 0; i < n; i++) {
+ luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ }
}
}
@@ -2942,6 +2941,7 @@ _mesa_unpack_color_span_chan( GLcontext *ctx,
srcPacking->SwapBytes);
}
+ /* Need to clamp if returning GLubytes or GLushorts */
#if CHAN_TYPE != GL_FLOAT
transferOps |= IMAGE_CLAMP_BIT;
#endif
@@ -3069,7 +3069,7 @@ _mesa_unpack_color_span_float( GLcontext *ctx,
GLenum srcFormat, GLenum srcType,
const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking,
- GLuint transferOps, GLboolean clamp )
+ GLuint transferOps )
{
ASSERT(dstFormat == GL_ALPHA ||
dstFormat == GL_LUMINANCE ||
@@ -3169,12 +3169,6 @@ _mesa_unpack_color_span_float( GLcontext *ctx,
srcPacking->SwapBytes);
}
-#if CHAN_TYPE != GL_FLOAT
- if (clamp) {
- transferOps |= IMAGE_CLAMP_BIT;
- }
-#endif
-
if (transferOps) {
_mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba);
}
diff --git a/src/mesa/main/image.h b/src/mesa/main/image.h
index cd79d5f223f..b3757a30fdc 100644
--- a/src/mesa/main/image.h
+++ b/src/mesa/main/image.h
@@ -110,10 +110,10 @@ _mesa_pack_rgba_span_float( GLcontext *ctx,
extern void
_mesa_pack_rgba_span_chan( GLcontext *ctx,
- GLuint n, CONST GLchan rgba[][4],
- GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
- const struct gl_pixelstore_attrib *dstPacking,
- GLuint transferOps );
+ GLuint n, CONST GLchan rgba[][4],
+ GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
+ const struct gl_pixelstore_attrib *dstPacking,
+ GLuint transferOps );
extern void
@@ -131,7 +131,7 @@ _mesa_unpack_color_span_float( GLcontext *ctx,
GLenum srcFormat, GLenum srcType,
const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking,
- GLuint transferOps, GLboolean clamp );
+ GLuint transferOps );
extern void
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index d1cfa4597bc..1c03a056069 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2319,6 +2319,12 @@ struct __GLcontextRec {
GLfloat MRD; /**< minimum resolvable difference in Z values */
/*@}*/
+ /** \name Color clamping (tentative part of GL_ARB_color_clamp_control) */
+ /*@{*/
+ GLboolean ClampFragmentColors;
+ GLboolean ClampVertexColors;
+ /*@}*/
+
/** Should 3Dfx Glide driver catch signals? */
GLboolean CatchSignals;
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index 61bbc10bf67..315cd6ca2d3 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -360,9 +360,8 @@ transfer_teximage(GLcontext *ctx, GLuint dimensions,
srcAddr, srcWidth, srcHeight,
srcFormat, srcType, img, row, 0);
_mesa_unpack_color_span_float(ctx, srcWidth, GL_RGBA, dstf,
- srcFormat, srcType, src, srcPacking,
- transferOps & IMAGE_PRE_CONVOLUTION_BITS,
- GL_TRUE);
+ srcFormat, srcType, src, srcPacking,
+ (transferOps & IMAGE_PRE_CONVOLUTION_BITS) | IMAGE_CLAMP_BIT);
dstf += srcWidth * 4;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 20:55:23 +0000