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-rw-r--r--src/mesa/main/mtypes.h5
-rw-r--r--src/mesa/main/rastpos.c4
-rw-r--r--src/mesa/swrast/s_bitmap.c13
-rw-r--r--src/mesa/swrast/s_copypix.c48
-rw-r--r--src/mesa/swrast/s_drawpix.c18
5 files changed, 61 insertions, 27 deletions
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index d82d806cc8..4dfdbe4619 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1,4 +1,4 @@
-/* $Id: mtypes.h,v 1.43 2001/05/29 15:23:49 brianp Exp $ */
+/* $Id: mtypes.h,v 1.44 2001/05/30 15:22:04 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -312,6 +312,7 @@ struct gl_current_attrib {
GLuint RasterIndex; /* Current raster index */
GLfloat *RasterTexCoord; /* Current raster texcoord*/
GLfloat RasterMultiTexCoord[MAX_TEXTURE_UNITS][4];
+ GLfloat RasterFogCoord;
GLboolean RasterPosValid; /* Raster po valid flag */
};
@@ -424,7 +425,7 @@ struct gl_fog_attrib {
GLfloat Index; /* Fog index */
GLenum Mode; /* Fog mode */
GLboolean ColorSumEnabled;
- GLenum FogCoordinateSource;
+ GLenum FogCoordinateSource; /* GL_EXT_fog_coord */
};
diff --git a/src/mesa/main/rastpos.c b/src/mesa/main/rastpos.c
index 388f8f3e28..958cf23bfb 100644
--- a/src/mesa/main/rastpos.c
+++ b/src/mesa/main/rastpos.c
@@ -1,4 +1,4 @@
-/* $Id: rastpos.c,v 1.24 2001/05/01 07:25:41 keithw Exp $ */
+/* $Id: rastpos.c,v 1.25 2001/05/30 15:22:04 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -320,7 +320,7 @@ raster_pos4f(GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
ctx->Current.RasterPos[3] = clip[3];
ctx->Current.RasterPosValid = GL_TRUE;
- /* FOG??? */
+ ctx->Current.RasterFogCoord = ctx->Current.FogCoord;
{
GLuint texSet;
diff --git a/src/mesa/swrast/s_bitmap.c b/src/mesa/swrast/s_bitmap.c
index aee5f7a088..0c4592bc87 100644
--- a/src/mesa/swrast/s_bitmap.c
+++ b/src/mesa/swrast/s_bitmap.c
@@ -1,4 +1,4 @@
-/* $Id: s_bitmap.c,v 1.9 2001/05/09 17:21:51 brianp Exp $ */
+/* $Id: s_bitmap.c,v 1.10 2001/05/30 15:22:05 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -74,10 +74,15 @@ _swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
fragZ = (GLdepth) ( ctx->Current.RasterPos[2] * ctx->DepthMaxF);
- if (ctx->Fog.Enabled)
- _mesa_win_fog_coords_from_z( ctx, 1, &fragZ, &fogCoord );
- else
+ if (ctx->Fog.Enabled) {
+ if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT)
+ fogCoord = ctx->Current.FogCoord;
+ else
+ fogCoord = ctx->Current.RasterDistance;
+ }
+ else {
fogCoord = 0.0;
+ }
for (row=0; row<height; row++) {
const GLubyte *src = (const GLubyte *) _mesa_image_address( unpack,
diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c
index a4a34ba592..f9d84975a5 100644
--- a/src/mesa/swrast/s_copypix.c
+++ b/src/mesa/swrast/s_copypix.c
@@ -1,4 +1,4 @@
-/* $Id: s_copypix.c,v 1.18 2001/05/16 20:27:12 brianp Exp $ */
+/* $Id: s_copypix.c,v 1.19 2001/05/30 15:22:05 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -98,6 +98,7 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLdepth zspan[MAX_WIDTH];
+ GLfloat fogSpan[MAX_WIDTH];
GLboolean quick_draw;
GLint row;
GLboolean changeBuffer;
@@ -108,11 +109,13 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
if (ctx->Depth.Test || ctx->Fog.Enabled) {
/* fill in array of z values */
- GLdepth z = (GLdepth)
- (ctx->Current.RasterPos[2] * ctx->DepthMax);
+ GLdepth z = (GLdepth) (ctx->Current.RasterPos[2] * ctx->DepthMax);
+ GLfloat fog = (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) ?
+ ctx->Current.RasterFogCoord : ctx->Current.RasterDistance;
GLint i;
for (i = 0; i < width; i++) {
zspan[i] = z;
+ fogSpan[i] = fog;
}
}
@@ -282,11 +285,11 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
(const GLchan (*)[4])rgba, NULL );
}
else if (zoom) {
- _mesa_write_zoomed_rgba_span( ctx, width, destx, dy, zspan, 0,
+ _mesa_write_zoomed_rgba_span( ctx, width, destx, dy, zspan, fogSpan,
(const GLchan (*)[4])rgba, desty);
}
else {
- _mesa_write_rgba_span( ctx, width, destx, dy, zspan, 0, rgba,
+ _mesa_write_rgba_span( ctx, width, destx, dy, zspan, fogSpan, rgba,
NULL, GL_BITMAP );
}
}
@@ -304,6 +307,7 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLdepth zspan[MAX_WIDTH];
+ GLfloat fogSpan[MAX_WIDTH];
GLchan rgba[MAX_WIDTH][4];
GLchan *tmpImage,*p;
GLboolean quick_draw;
@@ -340,8 +344,11 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
if (ctx->Depth.Test || ctx->Fog.Enabled) {
/* fill in array of z values */
GLdepth z = (GLdepth) (ctx->Current.RasterPos[2] * ctx->DepthMax);
+ GLfloat fog = (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) ?
+ ctx->Current.RasterFogCoord : ctx->Current.RasterDistance;
for (i=0;i<width;i++) {
zspan[i] = z;
+ fogSpan[i] = fog;
}
}
@@ -543,11 +550,11 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
(const GLchan (*)[4])rgba, NULL );
}
else if (zoom) {
- _mesa_write_zoomed_rgba_span( ctx, width, destx, dy, zspan, 0,
+ _mesa_write_zoomed_rgba_span( ctx, width, destx, dy, zspan, fogSpan,
(const GLchan (*)[4])rgba, desty);
}
else {
- _mesa_write_rgba_span( ctx, width, destx, dy, zspan, 0, rgba,
+ _mesa_write_rgba_span( ctx, width, destx, dy, zspan, fogSpan, rgba,
NULL, GL_BITMAP );
}
}
@@ -567,6 +574,7 @@ static void copy_ci_pixels( GLcontext *ctx,
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLdepth zspan[MAX_WIDTH];
+ GLfloat fogSpan[MAX_WIDTH];
GLuint *tmpImage,*p;
GLint sy, dy, stepy;
GLint i, j;
@@ -595,8 +603,11 @@ static void copy_ci_pixels( GLcontext *ctx,
if (ctx->Depth.Test || ctx->Fog.Enabled) {
/* fill in array of z values */
GLdepth z = (GLdepth) (ctx->Current.RasterPos[2] * ctx->DepthMax);
+ GLfloat fog = (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) ?
+ ctx->Current.RasterFogCoord : ctx->Current.RasterDistance;
for (i=0;i<width;i++) {
zspan[i] = z;
+ fogSpan[i] = fog;
}
}
@@ -658,11 +669,11 @@ static void copy_ci_pixels( GLcontext *ctx,
}
if (zoom) {
- _mesa_write_zoomed_index_span(ctx, width, destx, dy, zspan, 0,
+ _mesa_write_zoomed_index_span(ctx, width, destx, dy, zspan, fogSpan,
indexes, desty );
}
else {
- _mesa_write_index_span(ctx, width, destx, dy, zspan, 0, indexes,
+ _mesa_write_index_span(ctx, width, destx, dy, zspan, fogSpan, indexes,
NULL, GL_BITMAP);
}
}
@@ -686,6 +697,7 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
{
GLfloat depth[MAX_WIDTH];
GLdepth zspan[MAX_WIDTH];
+ GLfloat fogSpan[MAX_WIDTH];
GLfloat *p, *tmpImage;
GLuint indexes[MAX_WIDTH];
GLint sy, dy, stepy;
@@ -732,6 +744,14 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
}
}
+ if (ctx->Fog.Enabled) {
+ GLfloat fog = (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) ?
+ ctx->Current.RasterFogCoord : ctx->Current.RasterDistance;
+ for (i = 0; i < width; i++) {
+ fogSpan[i] = fog;
+ }
+ }
+
if (overlapping) {
GLint ssy = sy;
tmpImage = (GLfloat *) MALLOC(width * height * sizeof(GLfloat));
@@ -768,22 +788,22 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
if (ctx->Visual.rgbMode) {
if (zoom) {
- _mesa_write_zoomed_rgba_span( ctx, width, destx, dy, zspan, 0,
- (const GLchan (*)[4])rgba, desty );
+ _mesa_write_zoomed_rgba_span( ctx, width, destx, dy, zspan,
+ fogSpan, (const GLchan (*)[4])rgba, desty );
}
else {
- _mesa_write_rgba_span( ctx, width, destx, dy, zspan, 0,
+ _mesa_write_rgba_span( ctx, width, destx, dy, zspan, fogSpan,
rgba, NULL, GL_BITMAP);
}
}
else {
if (zoom) {
_mesa_write_zoomed_index_span( ctx, width, destx, dy,
- zspan, 0, indexes, desty );
+ zspan, fogSpan, indexes, desty );
}
else {
_mesa_write_index_span( ctx, width, destx, dy,
- zspan, 0, indexes, NULL, GL_BITMAP );
+ zspan, fogSpan, indexes, NULL, GL_BITMAP );
}
}
}
diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c
index 59b2d0294b..4ab5a7717a 100644
--- a/src/mesa/swrast/s_drawpix.c
+++ b/src/mesa/swrast/s_drawpix.c
@@ -1,4 +1,4 @@
-/* $Id: s_drawpix.c,v 1.19 2001/05/16 20:27:12 brianp Exp $ */
+/* $Id: s_drawpix.c,v 1.20 2001/05/30 15:22:05 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -490,15 +490,19 @@ draw_index_pixels( GLcontext *ctx, GLint x, GLint y,
const GLint desty = y;
GLint row, drawWidth;
GLdepth zspan[MAX_WIDTH];
+ GLfloat fogSpan[MAX_WIDTH];
drawWidth = (width > MAX_WIDTH) ? MAX_WIDTH : width;
/* Fragment depth values */
if (ctx->Depth.Test || ctx->Fog.Enabled) {
GLdepth zval = (GLdepth) (ctx->Current.RasterPos[2] * ctx->DepthMaxF);
+ GLfloat fog = (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) ?
+ ctx->Current.RasterFogCoord : ctx->Current.RasterDistance;
GLint i;
for (i = 0; i < drawWidth; i++) {
zspan[i] = zval;
+ fogSpan[i] = fog;
}
}
@@ -513,11 +517,11 @@ draw_index_pixels( GLcontext *ctx, GLint x, GLint y,
type, source, &ctx->Unpack,
ctx->_ImageTransferState);
if (zoom) {
- _mesa_write_zoomed_index_span(ctx, drawWidth, x, y, zspan, 0,
+ _mesa_write_zoomed_index_span(ctx, drawWidth, x, y, zspan, fogSpan,
indexes, desty);
}
else {
- _mesa_write_index_span(ctx, drawWidth, x, y, zspan, 0, indexes,
+ _mesa_write_index_span(ctx, drawWidth, x, y, zspan, fogSpan, indexes,
NULL, GL_BITMAP);
}
}
@@ -714,6 +718,7 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0;
const GLint desty = y;
GLdepth zspan[MAX_WIDTH];
+ GLfloat fogSpan[MAX_WIDTH];
GLboolean quickDraw;
GLfloat *convImage = NULL;
GLuint transferOps = ctx->_ImageTransferState;
@@ -731,9 +736,12 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
if (ctx->Depth.Test || ctx->Fog.Enabled) {
/* fill in array of z values */
GLdepth z = (GLdepth) (ctx->Current.RasterPos[2] * ctx->DepthMaxF);
+ GLfloat fog = (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) ?
+ ctx->Current.RasterFogCoord : ctx->Current.RasterDistance;
GLint i;
for (i=0;i<width;i++) {
zspan[i] = z;
+ fogSpan[i] = fog;
}
}
@@ -852,11 +860,11 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
(CONST GLchan (*)[4]) rgba, NULL);
}
else if (zoom) {
- _mesa_write_zoomed_rgba_span(ctx, width, x, y, zspan, 0,
+ _mesa_write_zoomed_rgba_span(ctx, width, x, y, zspan, fogSpan,
(CONST GLchan (*)[4]) rgba, desty);
}
else {
- _mesa_write_rgba_span(ctx, (GLuint) width, x, y, zspan, 0,
+ _mesa_write_rgba_span(ctx, (GLuint) width, x, y, zspan, fogSpan,
rgba, NULL, GL_BITMAP);
}
}
generated by cgit v1.2.3 (git 2.51.0) at 2025-10-31 06:29:27 +0000