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added current raster fog coord and related code

tags/mesa_3_5
Brian Paul 24 jaren geleden
bovenliggende
529e48bb0f
commit
b5d3f2c521
5 gewijzigde bestanden met toevoegingen van 61 en 27 verwijderingen
Zij-aan-zij weergave Toon Diff Stats
  1. 3
    2
      src/mesa/main/mtypes.h
  2. 2
    2
      src/mesa/main/rastpos.c
  3. 9
    4
      src/mesa/swrast/s_bitmap.c
  4. 34
    14
      src/mesa/swrast/s_copypix.c
  5. 13
    5
      src/mesa/swrast/s_drawpix.c

+ 3
- 2
src/mesa/main/mtypes.h Bestand weergeven

@@ -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 */
};



+ 2
- 2
src/mesa/main/rastpos.c Bestand weergeven

@@ -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;

+ 9
- 4
src/mesa/swrast/s_bitmap.c Bestand weergeven

@@ -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,

+ 34
- 14
src/mesa/swrast/s_copypix.c Bestand weergeven

@@ -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 );
}
}
}

+ 13
- 5
src/mesa/swrast/s_drawpix.c Bestand weergeven

@@ -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);
}
}

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