more work on GL_ARB_texture_compression

[mesa.git] / src / mesa / main / lines.c

diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c
index ed671d7a8296b44a8e361f9d9097a47d0dda733f..28f9e38fbf530e2aff1b00c12754ad8f58b23fb7 100644 (file)
--- a/src/mesa/main/lines.c
+++ b/src/mesa/main/lines.c
@@ -1,8 +1,8 @@
-/* $Id: lines.c,v 1.1 1999/08/19 00:55:41 jtg Exp $ */
+/* $Id: lines.c,v 1.10 2000/05/10 22:36:05 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
- * Version:  3.1
+ * Version:  3.3
  * 
  * Copyright (C) 1999  Brian Paul   All Rights Reserved.
  * 
@@ -25,13 +25,10 @@
  */
 
 
-
-
-
 #ifdef PC_HEADER
 #include "all.h"
 #else
-#include <assert.h>
+#include "glheader.h"
 #include "context.h"
 #include "depth.h"
 #include "feedback.h"
@@ -42,15 +39,14 @@
 #include "texstate.h"
 #include "types.h"
 #include "vb.h"
-#ifdef XFree86Server
-#include "GL/xf86glx.h"
-#endif
 #endif
 
 
 
-void gl_LineWidth( GLcontext *ctx, GLfloat width )
+void
+_mesa_LineWidth( GLfloat width )
 {
+   GET_CURRENT_CONTEXT(ctx);
    if (width<=0.0) {
       gl_error( ctx, GL_INVALID_VALUE, "glLineWidth" );
       return;
@@ -62,17 +58,24 @@ void gl_LineWidth( GLcontext *ctx, GLfloat width )
       ctx->TriangleCaps &= ~DD_LINE_WIDTH;
       if (width != 1.0) ctx->TriangleCaps |= DD_LINE_WIDTH;
       ctx->NewState |= NEW_RASTER_OPS;
+      if (ctx->Driver.LineWidth)
+         (*ctx->Driver.LineWidth)(ctx, width);
    }
 }
 
 
 
-void gl_LineStipple( GLcontext *ctx, GLint factor, GLushort pattern )
+void
+_mesa_LineStipple( GLint factor, GLushort pattern )
 {
+   GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glLineStipple");
    ctx->Line.StippleFactor = CLAMP( factor, 1, 256 );
    ctx->Line.StipplePattern = pattern;
    ctx->NewState |= NEW_RASTER_OPS;
+
+   if (ctx->Driver.LineStipple)
+      ctx->Driver.LineStipple( ctx, factor, pattern );
 }
 
 
@@ -99,83 +102,6 @@ void gl_LineStipple( GLcontext *ctx, GLint factor, GLushort pattern )
 
 
 
-static void feedback_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv )
-{
-   struct vertex_buffer *VB = ctx->VB;
-   GLfloat x1, y1, z1, w1;
-   GLfloat x2, y2, z2, w2;
-   GLfloat tex1[4], tex2[4], invq;
-   GLuint texUnit = ctx->Texture.CurrentTransformUnit;
-
-   x1 = VB->Win.data[v1][0];
-   y1 = VB->Win.data[v1][1];
-   z1 = VB->Win.data[v1][2] / DEPTH_SCALE;
-   w1 = (VB->ClipPtr->size == 4 ? VEC_ELT(VB->ClipPtr, GLfloat, v1)[3] : 1.0);
-
-   x2 = VB->Win.data[v2][0];
-   y2 = VB->Win.data[v2][1];
-   z2 = VB->Win.data[v2][2] / DEPTH_SCALE;
-   w2 = (VB->ClipPtr->size == 4 ? VEC_ELT(VB->ClipPtr, GLfloat, v2)[3] : 1.0);
-
-
-   if (VB->TexCoordPtr[texUnit]->size == 4) {      
-      invq = (VB->TexCoordPtr[texUnit]->data[v1][3]==0.0
-             ? 1.0
-             : 1.0F / VB->TexCoordPtr[texUnit]->data[v1][3]);
-
-      tex1[0] = VB->TexCoordPtr[texUnit]->data[v1][0] * invq;
-      tex1[1] = VB->TexCoordPtr[texUnit]->data[v1][1] * invq;
-      tex1[2] = VB->TexCoordPtr[texUnit]->data[v1][2] * invq;
-      tex1[3] = VB->TexCoordPtr[texUnit]->data[v1][3];
-
-      invq = (VB->TexCoordPtr[texUnit]->data[v2][3]==0.0
-             ? 1.0
-             : 1.0F / VB->TexCoordPtr[texUnit]->data[v2][3]);
-
-      tex2[0] = VB->TexCoordPtr[texUnit]->data[v2][0] * invq;
-      tex2[1] = VB->TexCoordPtr[texUnit]->data[v2][1] * invq;
-      tex2[2] = VB->TexCoordPtr[texUnit]->data[v2][2] * invq;
-      tex2[3] = VB->TexCoordPtr[texUnit]->data[v2][3];
-   } else {
-      ASSIGN_4V(tex1, 0,0,0,1);
-      ASSIGN_4V(tex2, 0,0,0,1);
-      COPY_SZ_4V(tex1, 
-                VB->TexCoordPtr[texUnit]->size,
-                VB->TexCoordPtr[texUnit]->data[v1]);
-      COPY_SZ_4V(tex2, 
-                VB->TexCoordPtr[texUnit]->size,
-                VB->TexCoordPtr[texUnit]->data[v2]);
-   }
-
-
-   if (ctx->StippleCounter==0) {
-      FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_LINE_RESET_TOKEN );
-   }
-   else {
-      FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_LINE_TOKEN );
-   }
-
-   {
-      GLfloat color[4];
-      GLubyte *ubc = VB->ColorPtr->data[pv];
-      GLuint index = VB->IndexPtr->data[pv];
-
-      UBYTE_RGBA_TO_FLOAT_RGBA( color, ubc );
-      gl_feedback_vertex( ctx, x1,y1,z1,w1, color, (GLfloat) index, tex1 );
-      gl_feedback_vertex( ctx, x2,y2,z2,w2, color, (GLfloat) index, tex2 );
-   }
-
-   ctx->StippleCounter++;
-}
-
-
-
-static void select_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv )
-{
-   (void) pv;
-   gl_update_hitflag( ctx, ctx->VB->Win.data[v1][2] / DEPTH_SCALE );
-   gl_update_hitflag( ctx, ctx->VB->Win.data[v2][2] / DEPTH_SCALE );
-}
 
 
 
@@ -190,23 +116,14 @@ static void select_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv )
 static void flat_ci_line( GLcontext *ctx,
                           GLuint vert0, GLuint vert1, GLuint pvert )
 {
-   GLint count;
-   GLint *pbx = ctx->PB->x;
-   GLint *pby = ctx->PB->y;
-   PB_SET_INDEX( ctx, ctx->PB, ctx->VB->IndexPtr->data[pvert] );
-   count = ctx->PB->count;
+   PB_SET_INDEX( ctx->PB, ctx->VB->IndexPtr->data[pvert] );
 
 #define INTERP_XY 1
-
-#define PLOT(X,Y)              \
-       pbx[count] = X;         \
-       pby[count] = Y;         \
-       count++;
+#define PLOT(X,Y)  PB_WRITE_PIXEL(ctx->PB, X, Y, 0);
 
 #include "linetemp.h"
 
-   ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -215,26 +132,15 @@ static void flat_ci_line( GLcontext *ctx,
 static void flat_ci_z_line( GLcontext *ctx,
                             GLuint vert0, GLuint vert1, GLuint pvert )
 {
-   GLint count;
-   GLint *pbx = ctx->PB->x;
-   GLint *pby = ctx->PB->y;
-   GLdepth *pbz = ctx->PB->z;
-   PB_SET_INDEX( ctx, ctx->PB, ctx->VB->IndexPtr->data[pvert] );
-   count = ctx->PB->count;
+   PB_SET_INDEX( ctx->PB, ctx->VB->IndexPtr->data[pvert] );
 
 #define INTERP_XY 1
 #define INTERP_Z 1
-
-#define PLOT(X,Y)              \
-       pbx[count] = X;         \
-       pby[count] = Y;         \
-       pbz[count] = Z;         \
-       count++;
+#define PLOT(X,Y)  PB_WRITE_PIXEL(ctx->PB, X, Y, Z);
 
 #include "linetemp.h"
 
-   ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -243,24 +149,15 @@ static void flat_ci_z_line( GLcontext *ctx,
 static void flat_rgba_line( GLcontext *ctx,
                             GLuint vert0, GLuint vert1, GLuint pvert )
 {
-   GLint count;
-   GLint *pbx = ctx->PB->x;
-   GLint *pby = ctx->PB->y;
-   GLubyte *color = ctx->VB->ColorPtr->data[pvert];
-   PB_SET_COLOR( ctx, ctx->PB, color[0], color[1], color[2], color[3] );
-   count = ctx->PB->count;
+   const GLubyte *color = ctx->VB->ColorPtr->data[pvert];
+   PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
 
 #define INTERP_XY 1
-
-#define PLOT(X,Y)              \
-       pbx[count] = X;         \
-       pby[count] = Y;         \
-       count++;
+#define PLOT(X,Y)   PB_WRITE_PIXEL(ctx->PB, X, Y, 0);
 
 #include "linetemp.h"
 
-   ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -269,27 +166,16 @@ static void flat_rgba_line( GLcontext *ctx,
 static void flat_rgba_z_line( GLcontext *ctx,
                               GLuint vert0, GLuint vert1, GLuint pvert )
 {
-   GLint count;
-   GLint *pbx = ctx->PB->x;
-   GLint *pby = ctx->PB->y;
-   GLdepth *pbz = ctx->PB->z;
-   GLubyte *color = ctx->VB->ColorPtr->data[pvert];
-   PB_SET_COLOR( ctx, ctx->PB, color[0], color[1], color[2], color[3] );
-   count = ctx->PB->count;
+   const GLubyte *color = ctx->VB->ColorPtr->data[pvert];
+   PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
 
 #define INTERP_XY 1
 #define INTERP_Z 1
-
-#define PLOT(X,Y)      \
-       pbx[count] = X; \
-       pby[count] = Y; \
-       pbz[count] = Z; \
-       count++;
+#define PLOT(X,Y)   PB_WRITE_PIXEL(ctx->PB, X, Y, Z);
 
 #include "linetemp.h"
 
-   ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -301,9 +187,11 @@ static void smooth_ci_line( GLcontext *ctx,
    GLint count = ctx->PB->count;
    GLint *pbx = ctx->PB->x;
    GLint *pby = ctx->PB->y;
-   GLuint *pbi = ctx->PB->i;
+   GLuint *pbi = ctx->PB->index;
    (void) pvert;
 
+   ctx->PB->mono = GL_FALSE;
+
 #define INTERP_XY 1
 #define INTERP_INDEX 1
 
@@ -316,7 +204,7 @@ static void smooth_ci_line( GLcontext *ctx,
 #include "linetemp.h"
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -329,9 +217,11 @@ static void smooth_ci_z_line( GLcontext *ctx,
    GLint *pbx = ctx->PB->x;
    GLint *pby = ctx->PB->y;
    GLdepth *pbz = ctx->PB->z;
-   GLuint *pbi = ctx->PB->i;
+   GLuint *pbi = ctx->PB->index;
    (void) pvert;
 
+   ctx->PB->mono = GL_FALSE;
+
 #define INTERP_XY 1
 #define INTERP_Z 1
 #define INTERP_INDEX 1
@@ -346,7 +236,7 @@ static void smooth_ci_z_line( GLcontext *ctx,
 #include "linetemp.h"
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -361,6 +251,8 @@ static void smooth_rgba_line( GLcontext *ctx,
    GLubyte (*pbrgba)[4] = ctx->PB->rgba;
    (void) pvert;
 
+   ctx->PB->mono = GL_FALSE;
+
 #define INTERP_XY 1
 #define INTERP_RGB 1
 #define INTERP_ALPHA 1
@@ -377,7 +269,7 @@ static void smooth_rgba_line( GLcontext *ctx,
 #include "linetemp.h"
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -393,6 +285,8 @@ static void smooth_rgba_z_line( GLcontext *ctx,
    GLubyte (*pbrgba)[4] = ctx->PB->rgba;
    (void) pvert;
 
+   ctx->PB->mono = GL_FALSE;
+
 #define INTERP_XY 1
 #define INTERP_Z 1
 #define INTERP_RGB 1
@@ -411,7 +305,7 @@ static void smooth_rgba_z_line( GLcontext *ctx,
 #include "linetemp.h"
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -432,9 +326,11 @@ static void general_smooth_ci_line( GLcontext *ctx,
    GLint *pbx = ctx->PB->x;
    GLint *pby = ctx->PB->y;
    GLdepth *pbz = ctx->PB->z;
-   GLuint *pbi = ctx->PB->i;
+   GLuint *pbi = ctx->PB->index;
    (void) pvert;
 
+   ctx->PB->mono = GL_FALSE;
+
    if (ctx->Line.StippleFlag) {
       /* stippled */
 #define INTERP_XY 1
@@ -492,7 +388,7 @@ static void general_smooth_ci_line( GLcontext *ctx,
    }
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -504,7 +400,7 @@ static void general_flat_ci_line( GLcontext *ctx,
    GLint *pbx = ctx->PB->x;
    GLint *pby = ctx->PB->y;
    GLdepth *pbz = ctx->PB->z;
-   PB_SET_INDEX( ctx, ctx->PB, ctx->VB->IndexPtr->data[pvert] );
+   PB_SET_INDEX( ctx->PB, ctx->VB->IndexPtr->data[pvert] );
    count = ctx->PB->count;
 
    if (ctx->Line.StippleFlag) {
@@ -557,7 +453,7 @@ static void general_flat_ci_line( GLcontext *ctx,
    }
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -572,6 +468,8 @@ static void general_smooth_rgba_line( GLcontext *ctx,
    GLubyte (*pbrgba)[4] = ctx->PB->rgba;
    (void) pvert;
 
+   ctx->PB->mono = GL_FALSE;
+
    if (ctx->Line.StippleFlag) {
       /* stippled */
 #define INTERP_XY 1
@@ -652,7 +550,7 @@ static void general_smooth_rgba_line( GLcontext *ctx,
    }
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -664,7 +562,7 @@ static void general_flat_rgba_line( GLcontext *ctx,
    GLint *pby = ctx->PB->y;
    GLdepth *pbz = ctx->PB->z;
    GLubyte *color = ctx->VB->ColorPtr->data[pvert];
-   PB_SET_COLOR( ctx, ctx->PB, color[0], color[1], color[2], color[3] );
+   PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
    count = ctx->PB->count;
 
    if (ctx->Line.StippleFlag) {
@@ -717,7 +615,7 @@ static void general_flat_rgba_line( GLcontext *ctx,
    }
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -733,7 +631,7 @@ static void flat_textured_line( GLcontext *ctx,
    GLfloat *pbt = ctx->PB->t[0];
    GLfloat *pbu = ctx->PB->u[0];
    GLubyte *color = ctx->VB->ColorPtr->data[pv];
-   PB_SET_COLOR( ctx, ctx->PB, color[0], color[1], color[2], color[3] );
+   PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
    count = ctx->PB->count;
 
    if (ctx->Line.StippleFlag) {
@@ -777,7 +675,7 @@ static void flat_textured_line( GLcontext *ctx,
    }
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -796,6 +694,8 @@ static void smooth_textured_line( GLcontext *ctx,
    GLubyte (*pbrgba)[4] = ctx->PB->rgba;
    (void) pvert;
 
+   ctx->PB->mono = GL_FALSE;
+
    if (ctx->Line.StippleFlag) {
       /* stippled */
 #define INTERP_XY 1
@@ -849,7 +749,7 @@ static void smooth_textured_line( GLcontext *ctx,
    }
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -873,6 +773,8 @@ static void smooth_multitextured_line( GLcontext *ctx,
    GLubyte (*pbspec)[3] = ctx->PB->spec;
    (void) pvert;
 
+   ctx->PB->mono = GL_FALSE;
+
    if (ctx->Line.StippleFlag) {
       /* stippled */
 #define INTERP_XY 1
@@ -942,7 +844,7 @@ static void smooth_multitextured_line( GLcontext *ctx,
    }
 
    ctx->PB->count = count;
-   PB_CHECK_FLUSH( ctx, ctx->PB );
+   gl_flush_pb(ctx);
 }
 
 
@@ -1103,8 +1005,7 @@ void gl_set_line_function( GLcontext *ctx )
       else {
         if (ctx->Light.ShadeModel==GL_SMOOTH) {
            /* Width==1, non-stippled, smooth-shaded */
-            if (ctx->Depth.Test
-               || (ctx->Fog.Enabled && ctx->Hint.Fog==GL_NICEST)) {
+            if (ctx->Depth.Test || ctx->FogMode == FOG_FRAGMENT) {
                if (rgbmode)
                   ctx->Driver.LineFunc = smooth_rgba_z_line;
                else
@@ -1119,8 +1020,7 @@ void gl_set_line_function( GLcontext *ctx )
         }
          else {
            /* Width==1, non-stippled, flat-shaded */
-            if (ctx->Depth.Test
-                || (ctx->Fog.Enabled && ctx->Hint.Fog==GL_NICEST)) {
+            if (ctx->Depth.Test || ctx->FogMode == FOG_FRAGMENT) {
                if (rgbmode)
                   ctx->Driver.LineFunc = flat_rgba_z_line;
                else
@@ -1136,11 +1036,11 @@ void gl_set_line_function( GLcontext *ctx )
       }
    }
    else if (ctx->RenderMode==GL_FEEDBACK) {
-      ctx->Driver.LineFunc = feedback_line;
+      ctx->Driver.LineFunc = gl_feedback_line;
    }
    else {
       /* GL_SELECT mode */
-      ctx->Driver.LineFunc = select_line;
+      ctx->Driver.LineFunc = gl_select_line;
    }
 }