-/* $Id: s_aaline.c,v 1.16 2002/08/07 00:45:07 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 4.1
+ * Version: 6.5.3
*
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2007 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"),
*/
-#include "glheader.h"
+#include "main/glheader.h"
+#include "main/imports.h"
+#include "main/macros.h"
+#include "main/mtypes.h"
#include "swrast/s_aaline.h"
#include "swrast/s_context.h"
#include "swrast/s_span.h"
#include "swrast/swrast.h"
-#include "mtypes.h"
-#include "mmath.h"
#define SUB_PIXEL 4
/* DO_Z */
GLfloat zPlane[4];
- /* DO_FOG */
- GLfloat fPlane[4];
- /* DO_RGBA */
+ /* DO_RGBA - always enabled */
GLfloat rPlane[4], gPlane[4], bPlane[4], aPlane[4];
- /* DO_INDEX */
- GLfloat iPlane[4];
- /* DO_SPEC */
- GLfloat srPlane[4], sgPlane[4], sbPlane[4];
- /* DO_TEX or DO_MULTITEX */
- GLfloat sPlane[MAX_TEXTURE_UNITS][4];
- GLfloat tPlane[MAX_TEXTURE_UNITS][4];
- GLfloat uPlane[MAX_TEXTURE_UNITS][4];
- GLfloat vPlane[MAX_TEXTURE_UNITS][4];
- GLfloat lambda[MAX_TEXTURE_UNITS];
- GLfloat texWidth[MAX_TEXTURE_UNITS], texHeight[MAX_TEXTURE_UNITS];
-
- struct sw_span span;
+ /* DO_ATTRIBS */
+ GLfloat wPlane[4];
+ GLfloat attrPlane[FRAG_ATTRIB_MAX][4][4];
+ GLfloat lambda[FRAG_ATTRIB_MAX];
+ GLfloat texWidth[FRAG_ATTRIB_MAX];
+ GLfloat texHeight[FRAG_ATTRIB_MAX];
+
+ SWspan span;
};
}
-static INLINE void
+static inline void
constant_plane(GLfloat value, GLfloat plane[4])
{
plane[0] = 0.0;
}
-static INLINE GLfloat
+static inline GLfloat
solve_plane(GLfloat x, GLfloat y, const GLfloat plane[4])
{
const GLfloat z = (plane[3] + plane[0] * x + plane[1] * y) / -plane[2];
/*
* Return 1 / solve_plane().
*/
-static INLINE GLfloat
+static inline GLfloat
solve_plane_recip(GLfloat x, GLfloat y, const GLfloat plane[4])
{
const GLfloat denom = plane[3] + plane[0] * x + plane[1] * y;
/*
* Solve plane and return clamped GLchan value.
*/
-static INLINE GLchan
+static inline GLchan
solve_plane_chan(GLfloat x, GLfloat y, const GLfloat plane[4])
{
- GLfloat z = (plane[3] + plane[0] * x + plane[1] * y) / -plane[2] + 0.5F;
- if (z < 0.0F)
+ const GLfloat z = (plane[3] + plane[0] * x + plane[1] * y) / -plane[2];
+#if CHAN_TYPE == GL_FLOAT
+ return CLAMP(z, 0.0F, CHAN_MAXF);
+#else
+ if (z < 0)
return 0;
- else if (z > CHAN_MAXF)
- return (GLchan) CHAN_MAXF;
- return (GLchan) (GLint) z;
+ else if (z > CHAN_MAX)
+ return CHAN_MAX;
+ return (GLchan) IROUND_POS(z);
+#endif
}
/*
* Compute mipmap level of detail.
*/
-static INLINE GLfloat
+static inline GLfloat
compute_lambda(const GLfloat sPlane[4], const GLfloat tPlane[4],
GLfloat invQ, GLfloat width, GLfloat height)
{
if (rho2 == 0.0F)
return 0.0;
else
- return (GLfloat) (log(rho2) * 1.442695 * 0.5);/* 1.442695 = 1/log(2) */
+ return (GLfloat) (LOGF(rho2) * 1.442695 * 0.5);/* 1.442695 = 1/log(2) */
}
}
-
-typedef void (*plot_func)(GLcontext *ctx, struct LineInfo *line,
+typedef void (*plot_func)(struct gl_context *ctx, struct LineInfo *line,
int ix, int iy);
* Draw an AA line segment (called many times per line when stippling)
*/
static void
-segment(GLcontext *ctx,
+segment(struct gl_context *ctx,
struct LineInfo *line,
plot_func plot,
GLfloat t0, GLfloat t1)
}
-#define NAME(x) aa_ci_##x
-#define DO_Z
-#define DO_FOG
-#define DO_INDEX
-#include "s_aalinetemp.h"
-
-
#define NAME(x) aa_rgba_##x
#define DO_Z
-#define DO_FOG
-#define DO_RGBA
#include "s_aalinetemp.h"
-#define NAME(x) aa_tex_rgba_##x
+#define NAME(x) aa_general_rgba_##x
#define DO_Z
-#define DO_FOG
-#define DO_RGBA
-#define DO_TEX
-#include "s_aalinetemp.h"
-
-
-#define NAME(x) aa_multitex_rgba_##x
-#define DO_Z
-#define DO_FOG
-#define DO_RGBA
-#define DO_MULTITEX
-#include "s_aalinetemp.h"
-
-
-#define NAME(x) aa_multitex_spec_##x
-#define DO_Z
-#define DO_FOG
-#define DO_RGBA
-#define DO_MULTITEX
-#define DO_SPEC
+#define DO_ATTRIBS
#include "s_aalinetemp.h"
void
-_swrast_choose_aa_line_function(GLcontext *ctx)
+_swrast_choose_aa_line_function(struct gl_context *ctx)
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
ASSERT(ctx->Line.SmoothFlag);
- if (ctx->Visual.rgbMode) {
- /* RGBA */
- if (ctx->Texture._EnabledUnits != 0) {
- if (ctx->Texture._EnabledUnits > 1) {
- /* Multitextured! */
- if (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR ||
- ctx->Fog.ColorSumEnabled)
- swrast->Line = aa_multitex_spec_line;
- else
- swrast->Line = aa_multitex_rgba_line;
- }
- else {
- swrast->Line = aa_tex_rgba_line;
- }
- }
- else {
- swrast->Line = aa_rgba_line;
- }
+ if (ctx->Texture._EnabledCoordUnits != 0
+ || _swrast_use_fragment_program(ctx)
+ || (ctx->Light.Enabled &&
+ ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
+ || ctx->Fog.ColorSumEnabled
+ || swrast->_FogEnabled) {
+ swrast->Line = aa_general_rgba_line;
}
else {
- /* Color Index */
- swrast->Line = aa_ci_line;
+ swrast->Line = aa_rgba_line;
}
}
projects / mesa.git / blobdiff