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Diffstat (limited to 'src/mesa/main/points.c')
-rw-r--r--src/mesa/main/points.c133
1 files changed, 67 insertions, 66 deletions
diff --git a/src/mesa/main/points.c b/src/mesa/main/points.c
index 0ab383bc9d..8895e1c8ec 100644
--- a/src/mesa/main/points.c
+++ b/src/mesa/main/points.c
@@ -1,4 +1,4 @@
-/* $Id: points.c,v 1.15 2000/10/20 19:54:49 brianp Exp $ */
+/* $Id: points.c,v 1.16 2000/10/27 16:44:41 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -153,19 +153,23 @@ size1_ci_points( GLcontext *ctx, GLuint first, GLuint last )
{
struct vertex_buffer *VB = ctx->VB;
struct pixel_buffer *PB = ctx->PB;
- GLfloat *win;
+ GLfloat *win, *fog;
GLint *pbx = PB->x, *pby = PB->y;
GLdepth *pbz = PB->z;
+ GLfixed *pbfog = PB->fog;
GLuint *pbi = PB->index;
GLuint pbcount = PB->count;
GLuint i;
win = &VB->Win.data[first][0];
+ fog = &VB->FogCoordPtr->data[first];
+
for (i = first; i <= last; i++) {
if (VB->ClipMask[i] == 0) {
pbx[pbcount] = (GLint) win[0];
pby[pbcount] = (GLint) win[1];
pbz[pbcount] = (GLint) (win[2] + ctx->PointZoffset);
+ pbfog[pbcount] = FloatToFixed(fog[i]);
pbi[pbcount] = VB->IndexPtr->data[i];
pbcount++;
}
@@ -190,18 +194,21 @@ size1_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
for (i = first; i <= last; i++) {
if (VB->ClipMask[i] == 0) {
GLint x, y, z;
+ GLint fog;
GLint red, green, blue, alpha;
x = (GLint) VB->Win.data[i][0];
y = (GLint) VB->Win.data[i][1];
z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
+ fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
red = VB->ColorPtr->data[i][0];
green = VB->ColorPtr->data[i][1];
blue = VB->ColorPtr->data[i][2];
alpha = VB->ColorPtr->data[i][3];
- PB_WRITE_RGBA_PIXEL( PB, x, y, z, red, green, blue, alpha );
+ PB_WRITE_RGBA_PIXEL( PB, x, y, z, fog, red, green, blue, alpha );
}
}
PB_CHECK_FLUSH(ctx, PB);
@@ -230,6 +237,8 @@ general_ci_points( GLcontext *ctx, GLuint first, GLuint last )
GLint y = (GLint) VB->Win.data[i][1];
GLint z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
if (isize & 1) {
/* odd size */
x0 = x - radius;
@@ -249,7 +258,7 @@ general_ci_points( GLcontext *ctx, GLuint first, GLuint last )
for (iy = y0; iy <= y1; iy++) {
for (ix = x0; ix <= x1; ix++) {
- PB_WRITE_PIXEL( PB, ix, iy, z );
+ PB_WRITE_PIXEL( PB, ix, iy, z, fog );
}
}
PB_CHECK_FLUSH(ctx,PB);
@@ -279,6 +288,8 @@ general_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
GLint y = (GLint) VB->Win.data[i][1];
GLint z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
if (isize & 1) {
/* odd size */
x0 = x - radius;
@@ -302,7 +313,7 @@ general_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
for (iy = y0; iy <= y1; iy++) {
for (ix = x0; ix <= x1; ix++) {
- PB_WRITE_PIXEL( PB, ix, iy, z );
+ PB_WRITE_PIXEL( PB, ix, iy, z, fog );
}
}
PB_CHECK_FLUSH(ctx,PB);
@@ -335,6 +346,8 @@ textured_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
GLint z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
GLint isize = (GLint) (ctx->Point.Size + 0.5F);
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
if (isize < 1) {
isize = 1;
}
@@ -389,7 +402,7 @@ textured_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
for (iy = y0; iy <= y1; iy++) {
for (ix = x0; ix <= x1; ix++) {
- PB_WRITE_TEX_PIXEL( PB, ix, iy, z, red, green, blue, alpha,
+ PB_WRITE_TEX_PIXEL( PB, ix, iy, z, fog, red, green, blue, alpha,
s, t, u );
}
}
@@ -416,9 +429,9 @@ multitextured_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
const GLint green = VB->ColorPtr->data[i][1];
const GLint blue = VB->ColorPtr->data[i][2];
const GLint alpha = VB->ColorPtr->data[i][3];
- const GLint sRed = VB->Specular ? VB->Specular[i][0] : 0;
- const GLint sGreen = VB->Specular ? VB->Specular[i][1] : 0;
- const GLint sBlue = VB->Specular ? VB->Specular[i][2] : 0;
+ const GLint sRed = VB->SecondaryColorPtr->data ? VB->SecondaryColorPtr->data[i][0] : 0;
+ const GLint sGreen = VB->SecondaryColorPtr->data ? VB->SecondaryColorPtr->data[i][1] : 0;
+ const GLint sBlue = VB->SecondaryColorPtr->data ? VB->SecondaryColorPtr->data[i][2] : 0;
const GLint x = (GLint) VB->Win.data[i][0];
const GLint y = (GLint) VB->Win.data[i][1];
const GLint z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
@@ -428,6 +441,8 @@ multitextured_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
GLint radius, u;
GLint isize = (GLint) (ctx->Point.Size + 0.5F);
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
if (isize < 1) {
isize = 1;
}
@@ -483,7 +498,7 @@ multitextured_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
for (iy = y0; iy <= y1; iy++) {
for (ix = x0; ix <= x1; ix++) {
- PB_WRITE_MULTITEX_SPEC_PIXEL( PB, ix, iy, z,
+ PB_WRITE_MULTITEX_SPEC_PIXEL( PB, ix, iy, z, fog,
red, green, blue, alpha,
sRed, sGreen, sBlue,
texcoord );
@@ -541,6 +556,8 @@ antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
GLfloat texcoord[MAX_TEXTURE_UNITS][4];
GLint u, alpha;
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
if (ctx->Texture.Unit[u].ReallyEnabled) {
switch (VB->TexCoordPtr[0]->size) {
@@ -591,11 +608,13 @@ antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
alpha = (alpha * coverage) >> 8;
}
if (ctx->Texture.MultiTextureEnabled) {
- PB_WRITE_MULTITEX_PIXEL( PB, x,y,z, red, green, blue,
+ PB_WRITE_MULTITEX_PIXEL( PB, x,y,z, fog,
+ red, green, blue,
alpha, texcoord );
}
else {
- PB_WRITE_TEX_PIXEL( PB, x,y,z, red, green, blue, alpha,
+ PB_WRITE_TEX_PIXEL( PB, x,y,z, fog,
+ red, green, blue, alpha,
texcoord[0][0],
texcoord[0][1],
texcoord[0][2] );
@@ -622,6 +641,8 @@ antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
const GLint z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
GLint x, y;
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
/*
printf("point %g, %g\n", VB->Win.data[i][0], VB->Win.data[i][1]);
printf("%d..%d X %d..%d\n", xmin, xmax, ymin, ymax);
@@ -638,7 +659,8 @@ antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
/* coverage is in [0,256] */
alpha = (alpha * coverage) >> 8;
}
- PB_WRITE_RGBA_PIXEL(PB, x, y, z, red, green, blue, alpha);
+ PB_WRITE_RGBA_PIXEL(PB, x, y, z, fog,
+ red, green, blue, alpha);
}
}
}
@@ -715,35 +737,6 @@ static dist_func eye_dist_tab[5] = {
};
-static void
-clip_dist(GLfloat *out, GLuint first, GLuint last,
- const GLcontext *ctx, GLvector4f *clip)
-{
- /* this is never called */
- gl_problem(NULL, "clip_dist() called - dead code!\n");
-
- (void) out;
- (void) first;
- (void) last;
- (void) ctx;
- (void) clip;
-
-#if 0
- GLuint i;
- const GLfloat *from = (GLfloat *)clip_vec->start;
- const GLuint stride = clip_vec->stride;
-
- for (i = first ; i <= last ; i++ )
- {
- GLfloat dist = win[i][2];
- out[i] = 1/(ctx->Point.Params[0]+
- dist * (ctx->Point.Params[1] +
- dist * ctx->Point.Params[2]));
- }
-#endif
-}
-
-
/*
* Distance Attenuated General CI points.
@@ -757,10 +750,9 @@ dist_atten_general_ci_points( GLcontext *ctx, GLuint first, GLuint last )
const GLfloat psize = ctx->Point.Size;
GLuint i;
- if (ctx->NeedEyeCoords)
- (eye_dist_tab[VB->EyePtr->size])( dist, first, last, ctx, VB->EyePtr );
- else
- clip_dist( dist, first, last, ctx, VB->ClipPtr );
+ ASSERT(ctx->NeedEyeCoords);
+ (eye_dist_tab[VB->EyePtr->size])( dist, first, last, ctx, VB->EyePtr );
+
for (i=first;i<=last;i++) {
if (VB->ClipMask[i]==0) {
@@ -772,6 +764,8 @@ dist_atten_general_ci_points( GLcontext *ctx, GLuint first, GLuint last )
GLint z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
GLfloat dsize = psize * dist[i];
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
if (dsize >= ctx->Point.Threshold) {
isize = (GLint) (MIN2(dsize, ctx->Point.MaxSize) + 0.5F);
}
@@ -799,7 +793,7 @@ dist_atten_general_ci_points( GLcontext *ctx, GLuint first, GLuint last )
for (iy=y0;iy<=y1;iy++) {
for (ix=x0;ix<=x1;ix++) {
- PB_WRITE_PIXEL( PB, ix, iy, z );
+ PB_WRITE_PIXEL( PB, ix, iy, z, fog );
}
}
PB_CHECK_FLUSH(ctx,PB);
@@ -819,10 +813,8 @@ dist_atten_general_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
const GLfloat psize = ctx->Point.Size;
GLuint i;
- if (ctx->NeedEyeCoords)
- (eye_dist_tab[VB->EyePtr->size])( dist, first, last, ctx, VB->EyePtr );
- else
- clip_dist( dist, first, last, ctx, VB->ClipPtr );
+ ASSERT (ctx->NeedEyeCoords);
+ (eye_dist_tab[VB->EyePtr->size])( dist, first, last, ctx, VB->EyePtr );
for (i=first;i<=last;i++) {
if (VB->ClipMask[i]==0) {
@@ -835,6 +827,8 @@ dist_atten_general_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
GLfloat dsize=psize*dist[i];
GLubyte alpha;
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
if (dsize >= ctx->Point.Threshold) {
isize = (GLint) (MIN2(dsize,ctx->Point.MaxSize)+0.5F);
alpha = VB->ColorPtr->data[i][3];
@@ -869,7 +863,7 @@ dist_atten_general_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
for (iy = y0; iy <= y1; iy++) {
for (ix = x0; ix <= x1; ix++) {
- PB_WRITE_PIXEL( PB, ix, iy, z );
+ PB_WRITE_PIXEL( PB, ix, iy, z, fog );
}
}
PB_CHECK_FLUSH(ctx,PB);
@@ -889,10 +883,8 @@ dist_atten_textured_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
const GLfloat psize = ctx->Point.Size;
GLuint i;
- if (ctx->NeedEyeCoords)
- (eye_dist_tab[VB->EyePtr->size])( dist, first, last, ctx, VB->EyePtr );
- else
- clip_dist( dist, first, last, ctx, VB->ClipPtr );
+ ASSERT(ctx->NeedEyeCoords);
+ (eye_dist_tab[VB->EyePtr->size])( dist, first, last, ctx, VB->EyePtr );
for (i=first;i<=last;i++) {
if (VB->ClipMask[i]==0) {
@@ -908,6 +900,8 @@ dist_atten_textured_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
GLint isize, radius;
GLfloat dsize = psize*dist[i];
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
/* compute point size and alpha */
if (dsize >= ctx->Point.Threshold) {
isize = (GLint) (MIN2(dsize, ctx->Point.MaxSize) + 0.5F);
@@ -975,12 +969,13 @@ dist_atten_textured_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
for (iy = y0; iy <= y1; iy++) {
for (ix = x0; ix <= x1; ix++) {
if (ctx->Texture.MultiTextureEnabled) {
- PB_WRITE_MULTITEX_PIXEL( PB, ix, iy, z,
+ PB_WRITE_MULTITEX_PIXEL( PB, ix, iy, z, fog,
red, green, blue, alpha,
texcoord );
}
else {
- PB_WRITE_TEX_PIXEL( PB, ix, iy, z, red, green, blue, alpha,
+ PB_WRITE_TEX_PIXEL( PB, ix, iy, z, fog,
+ red, green, blue, alpha,
texcoord[0][0],
texcoord[0][1],
texcoord[0][2] );
@@ -1004,10 +999,8 @@ dist_atten_antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
const GLfloat psize = ctx->Point.Size;
GLuint i;
- if (ctx->NeedEyeCoords)
- (eye_dist_tab[VB->EyePtr->size])( dist, first, last, ctx, VB->EyePtr );
- else
- clip_dist( dist, first, last, ctx, VB->ClipPtr );
+ ASSERT(ctx->NeedEyeCoords);
+ (eye_dist_tab[VB->EyePtr->size])( dist, first, last, ctx, VB->EyePtr );
if (ctx->Texture.ReallyEnabled) {
for (i=first;i<=last;i++) {
@@ -1020,6 +1013,8 @@ dist_atten_antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
GLfloat dsize = psize * dist[i];
GLint u;
+ GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
if (dsize >= ctx->Point.Threshold) {
radius = MIN2(dsize, ctx->Point.MaxSize) * 0.5F;
alphaf = 1.0F;
@@ -1093,12 +1088,13 @@ dist_atten_antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
}
alpha = (GLint) (alpha * alphaf);
if (ctx->Texture.MultiTextureEnabled) {
- PB_WRITE_MULTITEX_PIXEL( PB, x, y, z,
+ PB_WRITE_MULTITEX_PIXEL( PB, x, y, z, fog,
red, green, blue, alpha,
texcoord );
}
else {
- PB_WRITE_TEX_PIXEL( PB, x,y,z, red, green, blue, alpha,
+ PB_WRITE_TEX_PIXEL( PB, x,y,z, fog,
+ red, green, blue, alpha,
texcoord[0][0],
texcoord[0][1],
texcoord[0][2] );
@@ -1117,6 +1113,7 @@ dist_atten_antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
GLfloat radius, rmin, rmax, rmin2, rmax2, cscale, alphaf;
GLint xmin, ymin, xmax, ymax;
GLint x, y, z;
+ GLfixed fog;
GLint red, green, blue, alpha;
GLfloat dsize = psize * dist[i];
@@ -1141,6 +1138,8 @@ dist_atten_antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
ymax = (GLint) (VB->Win.data[i][1] + radius);
z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
+ fog = FloatToFixed( VB->FogCoordPtr->data[i] );
+
red = VB->ColorPtr->data[i][0];
green = VB->ColorPtr->data[i][1];
blue = VB->ColorPtr->data[i][2];
@@ -1158,7 +1157,8 @@ dist_atten_antialiased_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
alpha = (alpha * coverage) >> 8;
}
alpha = (GLint) (alpha * alphaf);
- PB_WRITE_RGBA_PIXEL(PB, x, y, z, red, green, blue, alpha);
+ PB_WRITE_RGBA_PIXEL(PB, x, y, z, fog,
+ red, green, blue, alpha);
}
}
}
@@ -1231,7 +1231,8 @@ void gl_set_point_function( GLcontext *ctx )
}
else if (ctx->Texture.ReallyEnabled) {
if (ctx->Texture.MultiTextureEnabled ||
- ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) {
+ ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR ||
+ ctx->Fog.ColorSumEnabled) {
ctx->Driver.PointsFunc = multitextured_rgba_points;
}
else {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 15:24:11 +0000