X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Flines.c;h=78d3a7729b9b2f96733de1e284c0e659731ee7b4;hb=651441c16fd2fa0eede876d70997cbfd646ef289;hp=21501fb1382800008e703e7a6cfbda1fd51839c4;hpb=fe5d67d95f3a5fc84c5421d409a6464642aaf2cb;p=mesa.git diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c index 21501fb1382..78d3a7729b9 100644 --- a/src/mesa/main/lines.c +++ b/src/mesa/main/lines.c @@ -1,1209 +1,151 @@ -/* $Id: lines.c,v 1.17 2000/10/27 16:44:40 keithw Exp $ */ - /* * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. - * + * + * Copyright (C) 1999-2006 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"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: - * + * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. - * + * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. */ -#ifdef PC_HEADER -#include "all.h" -#else #include "glheader.h" #include "context.h" -#include "depth.h" -#include "feedback.h" #include "lines.h" #include "macros.h" -#include "mmath.h" -#include "pb.h" -#include "texstate.h" -#include "types.h" -#include "vb.h" -#endif - - - -void -_mesa_LineWidth( GLfloat width ) -{ - GET_CURRENT_CONTEXT(ctx); - if (width<=0.0) { - gl_error( ctx, GL_INVALID_VALUE, "glLineWidth" ); - return; - } - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glLineWidth"); - - if (ctx->Line.Width != width) { - ctx->Line.Width = 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 -_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 ); -} - - +#include "mtypes.h" -/**********************************************************************/ -/***** Rasterization *****/ -/**********************************************************************/ - - -/* - * There are 4 pairs (RGBA, CI) of line drawing functions: - * 1. simple: width=1 and no special rasterization functions (fastest) - * 2. flat: width=1, non-stippled, flat-shaded, any raster operations - * 3. smooth: width=1, non-stippled, smooth-shaded, any raster operations - * 4. general: any other kind of line (slowest) - */ - -/* - * All line drawing functions have the same arguments: - * v1, v2 - indexes of first and second endpoints into vertex buffer arrays - * pv - provoking vertex: which vertex color/index to use for flat shading. +/** + * Set the line width. + * + * \param width line width in pixels. + * + * \sa glLineWidth(). */ - - - - - - -#if MAX_WIDTH > MAX_HEIGHT -# define MAXPOINTS MAX_WIDTH -#else -# define MAXPOINTS MAX_HEIGHT -#endif - - -/* Flat, color index line */ -static void flat_ci_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - PB_SET_INDEX( ctx->PB, ctx->VB->IndexPtr->data[pvert] ); - -#define INTERP_XY 1 -#define PLOT(X,Y) PB_WRITE_PIXEL(ctx->PB, X, Y, 0, 0); - -#include "linetemp.h" - - gl_flush_pb(ctx); -} - - - -/* Flat, color index line with Z interpolation/testing */ -static void flat_ci_z_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - PB_SET_INDEX( ctx->PB, ctx->VB->IndexPtr->data[pvert] ); - -#define INTERP_XY 1 -#define INTERP_Z 1 -#define PLOT(X,Y) PB_WRITE_PIXEL(ctx->PB, X, Y, Z, fog0); - -#include "linetemp.h" - - gl_flush_pb(ctx); -} - - - -/* Flat-shaded, RGBA line */ -static void flat_rgba_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - 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) PB_WRITE_PIXEL(ctx->PB, X, Y, 0, 0); - -#include "linetemp.h" - - gl_flush_pb(ctx); -} - - - -/* Flat-shaded, RGBA line with Z interpolation/testing */ -static void flat_rgba_z_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - 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) PB_WRITE_PIXEL(ctx->PB, X, Y, Z, fog0); - -#include "linetemp.h" - - gl_flush_pb(ctx); -} - - - -/* Smooth shaded, color index line */ -static void smooth_ci_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLuint *pbi = ctx->PB->index; - (void) pvert; - - ctx->PB->mono = GL_FALSE; - -#define INTERP_XY 1 -#define INTERP_INDEX 1 - -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbi[count] = I; \ - count++; - -#include "linetemp.h" - - ctx->PB->count = count; - gl_flush_pb(ctx); -} - - - -/* Smooth shaded, color index line with Z interpolation/testing */ -static void smooth_ci_z_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLdepth *pbz = ctx->PB->z; - GLuint *pbi = ctx->PB->index; - (void) pvert; - - ctx->PB->mono = GL_FALSE; - -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_INDEX 1 - -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbi[count] = I; \ - count++; - -#include "linetemp.h" - - ctx->PB->count = count; - gl_flush_pb(ctx); -} - - - -/* Smooth-shaded, RGBA line */ -static void smooth_rgba_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - 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 - -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - count++; - -#include "linetemp.h" - - ctx->PB->count = count; - gl_flush_pb(ctx); -} - - - -/* Smooth-shaded, RGBA line with Z interpolation/testing */ -static void smooth_rgba_z_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLdepth *pbz = ctx->PB->z; - GLfixed *pbfog = ctx->PB->fog; - 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 -#define INTERP_ALPHA 1 - -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - count++; - -#include "linetemp.h" - - ctx->PB->count = count; - gl_flush_pb(ctx); -} - - -#define CHECK_FULL(count) \ - if (count >= PB_SIZE-MAX_WIDTH) { \ - ctx->PB->count = count; \ - gl_flush_pb(ctx); \ - count = ctx->PB->count; \ - } - - - -/* Smooth shaded, color index, any width, maybe stippled */ -static void general_smooth_ci_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) +static ALWAYS_INLINE void +line_width(struct gl_context *ctx, GLfloat width, bool no_error) { - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLdepth *pbz = ctx->PB->z; - GLfixed *pbfog = ctx->PB->fog; - GLuint *pbi = ctx->PB->index; - (void) pvert; - - ctx->PB->mono = GL_FALSE; - - if (ctx->Line.StippleFlag) { - /* stippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_INDEX 1 -#define WIDE 1 -#define STIPPLE 1 -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbi[count] = I; \ - count++; \ - CHECK_FULL(count); -#include "linetemp.h" - } - else { - /* unstippled */ - if (ctx->Line.Width==2.0F) { - /* special case: unstippled and width=2 */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_INDEX 1 -#define XMAJOR_PLOT(X,Y) \ - pbx[count] = X; pbx[count+1] = X; \ - pby[count] = Y; pby[count+1] = Y+1; \ - pbz[count] = Z; pbz[count+1] = Z; \ - pbfog[count] = fog0; pbfog[count+1] = fog0; \ - pbi[count] = I; pbi[count+1] = I; \ - count += 2; \ - CHECK_FULL(count); -#define YMAJOR_PLOT(X,Y) \ - pbx[count] = X; pbx[count+1] = X+1; \ - pby[count] = Y; pby[count+1] = Y; \ - pbz[count] = Z; pbz[count+1] = Z; \ - pbfog[count] = fog0; pbfog[count+1] = fog0; \ - pbi[count] = I; pbi[count+1] = I; \ - count += 2; \ - CHECK_FULL(count); -#include "linetemp.h" - } - else { - /* unstippled, any width */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_INDEX 1 -#define WIDE 1 -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbi[count] = I; \ - pbfog[count] = fog0; \ - count++; \ - CHECK_FULL(count); -#include "linetemp.h" - } - } - - ctx->PB->count = count; - gl_flush_pb(ctx); -} - - -/* Flat shaded, color index, any width, maybe stippled */ -static void general_flat_ci_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; - GLfixed *pbfog = ctx->PB->fog; - PB_SET_INDEX( ctx->PB, ctx->VB->IndexPtr->data[pvert] ); - count = ctx->PB->count; + /* If width is unchanged, there can't be an error */ + if (ctx->Line.Width == width) + return; - if (ctx->Line.StippleFlag) { - /* stippled, any width */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define WIDE 1 -#define STIPPLE 1 -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - count++; \ - CHECK_FULL(count); -#include "linetemp.h" - } - else { - /* unstippled */ - if (ctx->Line.Width==2.0F) { - /* special case: unstippled and width=2 */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define XMAJOR_PLOT(X,Y) \ - pbx[count] = X; pbx[count+1] = X; \ - pby[count] = Y; pby[count+1] = Y+1; \ - pbz[count] = Z; pbz[count+1] = Z; \ - pbfog[count] = fog0; pbfog[count+1] = fog0; \ - count += 2; \ - CHECK_FULL(count); -#define YMAJOR_PLOT(X,Y) \ - pbx[count] = X; pbx[count+1] = X+1; \ - pby[count] = Y; pby[count+1] = Y; \ - pbz[count] = Z; pbz[count+1] = Z; \ - pbfog[count] = fog0; pbfog[count+1] = fog0; \ - count += 2; \ - CHECK_FULL(count); -#include "linetemp.h" - } - else { - /* unstippled, any width */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define WIDE 1 -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - count++; \ - CHECK_FULL(count); -#include "linetemp.h" - } + if (!no_error && width <= 0.0F) { + _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" ); + return; } - ctx->PB->count = count; - gl_flush_pb(ctx); -} - - - -static void general_smooth_rgba_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert) -{ - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLdepth *pbz = ctx->PB->z; - GLfixed *pbfog = ctx->PB->fog; - GLubyte (*pbrgba)[4] = ctx->PB->rgba; - (void) pvert; - - ctx->PB->mono = GL_FALSE; - - if (ctx->Line.StippleFlag) { - /* stippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define WIDE 1 -#define STIPPLE 1 -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - count++; \ - CHECK_FULL(count); -#include "linetemp.h" - } - else { - /* unstippled */ - if (ctx->Line.Width==2.0F) { - /* special case: unstippled and width=2 */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define XMAJOR_PLOT(X,Y) \ - pbx[count] = X; pbx[count+1] = X; \ - pby[count] = Y; pby[count+1] = Y+1; \ - pbz[count] = Z; pbz[count+1] = Z; \ - pbfog[count] = fog0; pbfog[count+1] = fog0; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - pbrgba[count+1][RCOMP] = FixedToInt(r0); \ - pbrgba[count+1][GCOMP] = FixedToInt(g0); \ - pbrgba[count+1][BCOMP] = FixedToInt(b0); \ - pbrgba[count+1][ACOMP] = FixedToInt(a0); \ - count += 2; \ - CHECK_FULL(count); -#define YMAJOR_PLOT(X,Y) \ - pbx[count] = X; pbx[count+1] = X+1; \ - pby[count] = Y; pby[count+1] = Y; \ - pbz[count] = Z; pbz[count+1] = Z; \ - pbfog[count] = fog0; pbfog[count+1] = fog0; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - pbrgba[count+1][RCOMP] = FixedToInt(r0); \ - pbrgba[count+1][GCOMP] = FixedToInt(g0); \ - pbrgba[count+1][BCOMP] = FixedToInt(b0); \ - pbrgba[count+1][ACOMP] = FixedToInt(a0); \ - count += 2; \ - CHECK_FULL(count); -#include "linetemp.h" - } - else { - /* unstippled, any width */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define WIDE 1 -#define PLOT(X,Y) \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - count++; \ - CHECK_FULL(count); -#include "linetemp.h" - } + /* Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says (in the list + * of deprecated functionality): + * + * "Wide lines and line stipple - LineWidth is not deprecated, but + * values greater than 1.0 will generate an INVALID_VALUE error;" + * + * This is one of the very few cases where functionality was deprecated but + * *NOT* removed in a later spec. Therefore, we only disallow this in a + * forward compatible context. + */ + if (!no_error && ctx->API == API_OPENGL_CORE + && ((ctx->Const.ContextFlags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT) + != 0) + && width > 1.0F) { + _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" ); + return; } - ctx->PB->count = count; - gl_flush_pb(ctx); -} - - -static void general_flat_rgba_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - const GLubyte *color = ctx->VB->ColorPtr->data[pvert]; - PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] ); + FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLineState ? 0 : _NEW_LINE); + ctx->NewDriverState |= ctx->DriverFlags.NewLineState; + ctx->Line.Width = width; - if (ctx->Line.StippleFlag) { - /* stippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define WIDE 1 -#define STIPPLE 1 -#define PLOT(X,Y) PB_WRITE_PIXEL(ctx->PB, X, Y, Z, fog0); -#include "linetemp.h" - } - else { - /* unstippled */ - if (ctx->Line.Width==2.0F) { - /* special case: unstippled and width=2 */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define XMAJOR_PLOT(X,Y) PB_WRITE_PIXEL(ctx->PB, X, Y, Z, fog0); \ - PB_WRITE_PIXEL(ctx->PB, X, Y+1, Z, fog0); -#define YMAJOR_PLOT(X,Y) PB_WRITE_PIXEL(ctx->PB, X, Y, Z, fog0); \ - PB_WRITE_PIXEL(ctx->PB, X+1, Y, Z, fog0); -#include "linetemp.h" - } - else { - /* unstippled, any width */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define WIDE 1 -#define PLOT(X,Y) PB_WRITE_PIXEL(ctx->PB, X, Y, Z, fog0); -#include "linetemp.h" - } - } - - gl_flush_pb(ctx); + if (ctx->Driver.LineWidth) + ctx->Driver.LineWidth(ctx, width); } -/* Flat-shaded, textured, any width, maybe stippled */ -static void flat_textured_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pv ) +void GLAPIENTRY +_mesa_LineWidth_no_error(GLfloat width) { - GLint count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLdepth *pbz = ctx->PB->z; - GLfixed *pbfog = ctx->PB->fog; - GLfloat *pbs = ctx->PB->s[0]; - GLfloat *pbt = ctx->PB->t[0]; - GLfloat *pbu = ctx->PB->u[0]; - GLubyte *color = ctx->VB->ColorPtr->data[pv]; - PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] ); - count = ctx->PB->count; - - if (ctx->Line.StippleFlag) { - /* stippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_TEX 1 -#define WIDE 1 -#define STIPPLE 1 -#define PLOT(X,Y) \ - { \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbs[count] = fragTexcoord[0];\ - pbt[count] = fragTexcoord[1];\ - pbu[count] = fragTexcoord[2];\ - count++; \ - CHECK_FULL(count); \ - } -#include "linetemp.h" - } - else { - /* unstippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_TEX 1 -#define WIDE 1 -#define PLOT(X,Y) \ - { \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbs[count] = fragTexcoord[0];\ - pbt[count] = fragTexcoord[1];\ - pbu[count] = fragTexcoord[2];\ - count++; \ - CHECK_FULL(count); \ - } -#include "linetemp.h" - } - - ctx->PB->count = count; - gl_flush_pb(ctx); + GET_CURRENT_CONTEXT(ctx); + line_width(ctx, width, true); } - -/* Smooth-shaded, textured, any width, maybe stippled */ -static void smooth_textured_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) +void GLAPIENTRY +_mesa_LineWidth(GLfloat width) { - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLdepth *pbz = ctx->PB->z; - GLfixed *pbfog = ctx->PB->fog; - GLfloat *pbs = ctx->PB->s[0]; - GLfloat *pbt = ctx->PB->t[0]; - GLfloat *pbu = ctx->PB->u[0]; - GLubyte (*pbrgba)[4] = ctx->PB->rgba; - (void) pvert; + GET_CURRENT_CONTEXT(ctx); - ctx->PB->mono = GL_FALSE; + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glLineWidth %f\n", width); - if (ctx->Line.StippleFlag) { - /* stippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define INTERP_TEX 1 -#define WIDE 1 -#define STIPPLE 1 -#define PLOT(X,Y) \ - { \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbs[count] = fragTexcoord[0]; \ - pbt[count] = fragTexcoord[1]; \ - pbu[count] = fragTexcoord[2]; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - count++; \ - CHECK_FULL(count); \ - } -#include "linetemp.h" - } - else { - /* unstippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define INTERP_TEX 1 -#define WIDE 1 -#define PLOT(X,Y) \ - { \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbs[count] = fragTexcoord[0]; \ - pbt[count] = fragTexcoord[1]; \ - pbu[count] = fragTexcoord[2]; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - count++; \ - CHECK_FULL(count); \ - } -#include "linetemp.h" - } - - ctx->PB->count = count; - gl_flush_pb(ctx); + line_width(ctx, width, false); } -/* Smooth-shaded, multitextured, any width, maybe stippled, separate specular - * color interpolation. +/** + * Set the line stipple pattern. + * + * \param factor pattern scale factor. + * \param pattern bit pattern. + * + * \sa glLineStipple(). + * + * Updates gl_line_attrib::StippleFactor and gl_line_attrib::StipplePattern. On + * change flushes the vertices and notifies the driver via + * the dd_function_table::LineStipple callback. */ -static void smooth_multitextured_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) +void GLAPIENTRY +_mesa_LineStipple( GLint factor, GLushort pattern ) { - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLdepth *pbz = ctx->PB->z; - GLfixed *pbfog = ctx->PB->fog; - GLubyte (*pbrgba)[4] = ctx->PB->rgba; - GLubyte (*pbspec)[3] = ctx->PB->spec; - (void) pvert; - - ctx->PB->mono = GL_FALSE; + GET_CURRENT_CONTEXT(ctx); - if (ctx->Line.StippleFlag) { - /* stippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_RGB 1 -#define INTERP_SPEC 1 -#define INTERP_ALPHA 1 -#define INTERP_MULTITEX 1 -#define WIDE 1 -#define STIPPLE 1 -#define PLOT(X,Y) \ - { \ - GLuint u; \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - pbspec[count][RCOMP] = FixedToInt(sr0); \ - pbspec[count][GCOMP] = FixedToInt(sg0); \ - pbspec[count][BCOMP] = FixedToInt(sb0); \ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { \ - if (ctx->Texture.Unit[u].ReallyEnabled) { \ - ctx->PB->s[u][0] = fragTexcoord[u][0]; \ - ctx->PB->s[u][1] = fragTexcoord[u][1]; \ - ctx->PB->s[u][2] = fragTexcoord[u][2]; \ - ctx->PB->s[u][3] = fragTexcoord[u][3]; \ - } \ - } \ - count++; \ - CHECK_FULL(count); \ - } -#include "linetemp.h" - } - else { - /* unstippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_RGB 1 -#define INTERP_SPEC 1 -#define INTERP_ALPHA 1 -#define INTERP_MULTITEX 1 -#define WIDE 1 -#define PLOT(X,Y) \ - { \ - GLuint u; \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbrgba[count][RCOMP] = FixedToInt(r0); \ - pbrgba[count][GCOMP] = FixedToInt(g0); \ - pbrgba[count][BCOMP] = FixedToInt(b0); \ - pbrgba[count][ACOMP] = FixedToInt(a0); \ - pbspec[count][RCOMP] = FixedToInt(sr0); \ - pbspec[count][GCOMP] = FixedToInt(sg0); \ - pbspec[count][BCOMP] = FixedToInt(sb0); \ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { \ - if (ctx->Texture.Unit[u].ReallyEnabled) { \ - ctx->PB->s[u][0] = fragTexcoord[u][0]; \ - ctx->PB->s[u][1] = fragTexcoord[u][1]; \ - ctx->PB->s[u][2] = fragTexcoord[u][2]; \ - ctx->PB->s[u][3] = fragTexcoord[u][3]; \ - } \ - } \ - count++; \ - CHECK_FULL(count); \ - } -#include "linetemp.h" - } + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glLineStipple %d %u\n", factor, pattern); - ctx->PB->count = count; - gl_flush_pb(ctx); -} + factor = CLAMP( factor, 1, 256 ); + if (ctx->Line.StippleFactor == factor && + ctx->Line.StipplePattern == pattern) + return; -/* Flat-shaded, multitextured, any width, maybe stippled, separate specular - * color interpolation. - */ -static void flat_multitextured_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ - GLint count = ctx->PB->count; - GLint *pbx = ctx->PB->x; - GLint *pby = ctx->PB->y; - GLdepth *pbz = ctx->PB->z; - GLfixed *pbfog = ctx->PB->fog; - GLubyte (*pbrgba)[4] = ctx->PB->rgba; - GLubyte (*pbspec)[3] = ctx->PB->spec; - GLubyte *color = ctx->VB->ColorPtr->data[pvert]; - GLubyte sRed = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][0] : 0; - GLubyte sGreen = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][1] : 0; - GLubyte sBlue = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][2] : 0; - - (void) pvert; - - ctx->PB->mono = GL_FALSE; - - if (ctx->Line.StippleFlag) { - /* stippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_ALPHA 1 -#define INTERP_MULTITEX 1 -#define WIDE 1 -#define STIPPLE 1 -#define PLOT(X,Y) \ - { \ - GLuint u; \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbrgba[count][RCOMP] = color[0]; \ - pbrgba[count][GCOMP] = color[1]; \ - pbrgba[count][BCOMP] = color[2]; \ - pbrgba[count][ACOMP] = color[3]; \ - pbspec[count][RCOMP] = sRed; \ - pbspec[count][GCOMP] = sGreen; \ - pbspec[count][BCOMP] = sBlue; \ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { \ - if (ctx->Texture.Unit[u].ReallyEnabled) { \ - ctx->PB->s[u][0] = fragTexcoord[u][0]; \ - ctx->PB->s[u][1] = fragTexcoord[u][1]; \ - ctx->PB->s[u][2] = fragTexcoord[u][2]; \ - ctx->PB->s[u][3] = fragTexcoord[u][3]; \ - } \ - } \ - count++; \ - CHECK_FULL(count); \ - } -#include "linetemp.h" - } - else { - /* unstippled */ -#define INTERP_XY 1 -#define INTERP_Z 1 -#define INTERP_ALPHA 1 -#define INTERP_MULTITEX 1 -#define WIDE 1 -#define PLOT(X,Y) \ - { \ - GLuint u; \ - pbx[count] = X; \ - pby[count] = Y; \ - pbz[count] = Z; \ - pbfog[count] = fog0; \ - pbrgba[count][RCOMP] = color[0]; \ - pbrgba[count][GCOMP] = color[1]; \ - pbrgba[count][BCOMP] = color[2]; \ - pbrgba[count][ACOMP] = color[3]; \ - pbspec[count][RCOMP] = sRed; \ - pbspec[count][GCOMP] = sGreen; \ - pbspec[count][BCOMP] = sBlue; \ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { \ - if (ctx->Texture.Unit[u].ReallyEnabled) { \ - ctx->PB->s[u][0] = fragTexcoord[u][0]; \ - ctx->PB->s[u][1] = fragTexcoord[u][1]; \ - ctx->PB->s[u][2] = fragTexcoord[u][2]; \ - ctx->PB->s[u][3] = fragTexcoord[u][3]; \ - } \ - } \ - count++; \ - CHECK_FULL(count); \ - } -#include "linetemp.h" - } + FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLineState ? 0 : _NEW_LINE); + ctx->NewDriverState |= ctx->DriverFlags.NewLineState; + ctx->Line.StippleFactor = factor; + ctx->Line.StipplePattern = pattern; - ctx->PB->count = count; - gl_flush_pb(ctx); + if (ctx->Driver.LineStipple) + ctx->Driver.LineStipple( ctx, factor, pattern ); } - - -/* - * Antialiased RGBA line +/** + * Initialize the context line state. * - * This AA line function isn't terribly efficient but it's pretty - * straight-forward to understand. Also, it doesn't exactly conform - * to the specification. - */ -static void aa_rgba_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ -#define INTERP_RGBA 1 -#define PLOT(x, y) \ - { \ - PB_WRITE_RGBA_PIXEL( pb, (x), (y), z, fog0, \ - red, green, blue, coverage ); \ - } -#include "lnaatemp.h" -} - -/* - * Antialiased Textured RGBA line - * - * This AA line function isn't terribly efficient but it's pretty - * straight-forward to understand. Also, it doesn't exactly conform - * to the specification. - */ -static void aa_tex_rgba_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ -#define INTERP_RGBA 1 -#define INTERP_TEX 1 -#define PLOT(x, y) \ - { \ - PB_WRITE_TEX_PIXEL( pb, (x), (y), z, fog0, \ - red, green, blue, coverage, \ - fragTexcoord[0], fragTexcoord[1], fragTexcoord[2] ); \ - } -#include "lnaatemp.h" -} - - -/* - * Antialiased Multitextured RGBA line + * \param ctx GL context. * - * This AA line function isn't terribly efficient but it's pretty - * straight-forward to understand. Also, it doesn't exactly conform - * to the specification. + * Initializes __struct gl_contextRec::Line and line related constants in + * __struct gl_contextRec::Const. */ -static void aa_multitex_rgba_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ -#define INTERP_RGBA 1 -#define INTERP_SPEC 1 -#define INTERP_MULTITEX 1 -#define PLOT(x, y) \ - { \ - PB_WRITE_MULTITEX_SPEC_PIXEL( pb, (x), (y), z, fog0, \ - red, green, blue, coverage, specRed, specGreen, specBlue, \ - fragTexcoord ); \ - } -#include "lnaatemp.h" -} - - -/* - * Antialiased CI line. Same comments for RGBA antialiased lines apply. - */ -static void aa_ci_line( GLcontext *ctx, - GLuint vert0, GLuint vert1, GLuint pvert ) -{ -#define INTERP_INDEX 1 -#define PLOT(x, y) \ - { \ - PB_WRITE_CI_PIXEL( pb, (x), (y), z, fog0, index + coverage ); \ - } -#include "lnaatemp.h" -} - - -/* - * Null rasterizer for measuring transformation speed. - */ -static void null_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv ) -{ - (void) ctx; - (void) v1; - (void) v2; - (void) pv; -} - - - -#ifdef DEBUG void -_mesa_print_line_function(GLcontext *ctx) -{ - printf("Line Func == "); - if (ctx->Driver.LineFunc == flat_ci_line) - printf("flat_ci_line\n"); - else if (ctx->Driver.LineFunc == flat_ci_z_line) - printf("flat_ci_z_line\n"); - else if (ctx->Driver.LineFunc == flat_rgba_line) - printf("flat_rgba_line\n"); - else if (ctx->Driver.LineFunc == flat_rgba_z_line) - printf("flat_rgba_z_line\n"); - else if (ctx->Driver.LineFunc == smooth_ci_line) - printf("smooth_ci_line\n"); - else if (ctx->Driver.LineFunc == smooth_ci_z_line) - printf("smooth_ci_z_line\n"); - else if (ctx->Driver.LineFunc == smooth_rgba_line) - printf("smooth_rgba_line\n"); - else if (ctx->Driver.LineFunc == smooth_rgba_z_line) - printf("smooth_rgba_z_line\n"); - else if (ctx->Driver.LineFunc == general_smooth_ci_line) - printf("general_smooth_ci_line\n"); - else if (ctx->Driver.LineFunc == general_flat_ci_line) - printf("general_flat_ci_line\n"); - else if (ctx->Driver.LineFunc == general_smooth_rgba_line) - printf("general_smooth_rgba_line\n"); - else if (ctx->Driver.LineFunc == general_flat_rgba_line) - printf("general_flat_rgba_line\n"); - else if (ctx->Driver.LineFunc == flat_textured_line) - printf("flat_textured_line\n"); - else if (ctx->Driver.LineFunc == smooth_textured_line) - printf("smooth_textured_line\n"); - else if (ctx->Driver.LineFunc == smooth_multitextured_line) - printf("smooth_multitextured_line\n"); - else if (ctx->Driver.LineFunc == flat_multitextured_line) - printf("flat_multitextured_line\n"); - else if (ctx->Driver.LineFunc == aa_rgba_line) - printf("aa_rgba_line\n"); - else if (ctx->Driver.LineFunc == aa_tex_rgba_line) - printf("aa_tex_rgba_line\n"); - else if (ctx->Driver.LineFunc == aa_multitex_rgba_line) - printf("aa_multitex_rgba_line\n"); - else if (ctx->Driver.LineFunc == aa_ci_line) - printf("aa_ci_line\n"); - else if (ctx->Driver.LineFunc == null_line) - printf("null_line\n"); - else - printf("Driver func %p\n", ctx->Driver.LineFunc); -} -#endif - - - -/* - * Determine which line drawing function to use given the current - * rendering context. - */ -void gl_set_line_function( GLcontext *ctx ) +_mesa_init_line( struct gl_context * ctx ) { - GLboolean rgbmode = ctx->Visual.RGBAflag; - /* TODO: antialiased lines */ - - if (ctx->RenderMode==GL_RENDER) { - if (ctx->NoRaster) { - ctx->Driver.LineFunc = null_line; - return; - } - if (ctx->Driver.LineFunc) { - /* Device driver will draw lines. */ - return; - } - - if (ctx->Line.SmoothFlag) { - /* antialiased lines */ - if (rgbmode) { - if (ctx->Texture.ReallyEnabled) { - if (ctx->Texture.MultiTextureEnabled - || ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR - || ctx->Fog.ColorSumEnabled) - /* Multitextured! */ - ctx->Driver.LineFunc = aa_multitex_rgba_line; - else - ctx->Driver.LineFunc = aa_tex_rgba_line; - } else { - ctx->Driver.LineFunc = aa_rgba_line; - } - } - else { - ctx->Driver.LineFunc = aa_ci_line; - } - } - else if (ctx->Texture.ReallyEnabled) { - if (ctx->Texture.MultiTextureEnabled - || ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) { - /* multi-texture and/or separate specular color */ - if (ctx->Light.ShadeModel==GL_SMOOTH) - ctx->Driver.LineFunc = smooth_multitextured_line; - else - ctx->Driver.LineFunc = flat_multitextured_line; - } - else { - if (ctx->Light.ShadeModel==GL_SMOOTH) { - ctx->Driver.LineFunc = smooth_textured_line; - } - else { - ctx->Driver.LineFunc = flat_textured_line; - } - } - } - else if (ctx->Line.Width!=1.0 || ctx->Line.StippleFlag - || ctx->Line.SmoothFlag) { - if (ctx->Light.ShadeModel==GL_SMOOTH) { - if (rgbmode) - ctx->Driver.LineFunc = general_smooth_rgba_line; - else - ctx->Driver.LineFunc = general_smooth_ci_line; - } - else { - if (rgbmode) - ctx->Driver.LineFunc = general_flat_rgba_line; - else - ctx->Driver.LineFunc = general_flat_ci_line; - } - } - else { - if (ctx->Light.ShadeModel==GL_SMOOTH) { - /* Width==1, non-stippled, smooth-shaded */ - if (ctx->Depth.Test || ctx->Fog.Enabled) { - if (rgbmode) - ctx->Driver.LineFunc = smooth_rgba_z_line; - else - ctx->Driver.LineFunc = smooth_ci_z_line; - } - else { - if (rgbmode) - ctx->Driver.LineFunc = smooth_rgba_line; - else - ctx->Driver.LineFunc = smooth_ci_line; - } - } - else { - /* Width==1, non-stippled, flat-shaded */ - if (ctx->Depth.Test || ctx->Fog.Enabled) { - if (rgbmode) - ctx->Driver.LineFunc = flat_rgba_z_line; - else - ctx->Driver.LineFunc = flat_ci_z_line; - } - else { - if (rgbmode) - ctx->Driver.LineFunc = flat_rgba_line; - else - ctx->Driver.LineFunc = flat_ci_line; - } - } - } - } - else if (ctx->RenderMode==GL_FEEDBACK) { - ctx->Driver.LineFunc = gl_feedback_line; - } - else { - /* GL_SELECT mode */ - ctx->Driver.LineFunc = gl_select_line; - } - - /*_mesa_print_line_function(ctx);*/ + ctx->Line.SmoothFlag = GL_FALSE; + ctx->Line.StippleFlag = GL_FALSE; + ctx->Line.Width = 1.0; + ctx->Line.StipplePattern = 0xffff; + ctx->Line.StippleFactor = 1; }