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windows-nt/Source/XPSP1/NT/multimedia/opengl/server/generic/genline.c
CryptoAlgo Inc b3cac27891 Add source files
2020-09-26 16:20:57 +08:00

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/*
** Copyright 1991,1992,1993, Silicon Graphics, Inc.
** All Rights Reserved.
**
** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
** the contents of this file may not be disclosed to third parties, copied or
** duplicated in any form, in whole or in part, without the prior written
** permission of Silicon Graphics, Inc.
**
** RESTRICTED RIGHTS LEGEND:
** Use, duplication or disclosure by the Government is subject to restrictions
** as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
** and Computer Software clause at DFARS 252.227-7013, and/or in similar or
** successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
** rights reserved under the Copyright Laws of the United States.
*/
#include "precomp.h"
#pragma hdrstop
#include "genline.h"
#include "devlock.h"
/******************************Public*Routine******************************\
* __fastGenLineSetupDisplay
*
* Initializes the accelerated line-rendering state machine for display surfaces.
* There are basically 4 levels in the state machine:
* 1. lineBegin
* This function initializes the initial states of the lower levels.
*
* 2. lineVertex
* This function adds vertices to the path
*
* 3. lineEnd
* This function calls the routine to stroke the path.
*
* History:
* 09-Jan-1996 -by- Drew Bliss [drewb]
* Totally rewrote fast line support
* 29-Mar-1994 [v-eddier]
* Changed name when __fastGenLineSetupDIB was added.
* 22-Mar-1994 -by- Eddie Robinson [v-eddier]
* Wrote it.
\**************************************************************************/
BOOL FASTCALL __fastGenLineSetupDisplay(__GLcontext *gc)
{
__GLGENcontext *gengc = (__GLGENcontext *) gc;
GENACCEL *genAccel = (GENACCEL *) gengc->pPrivateArea;
GLuint modeFlags = gc->polygon.shader.modeFlags;
// allocate line buffer
if (!genAccel->pFastLineBuffer) {
if (!(genAccel->pFastLineBuffer =
(BYTE *) GCALLOC(gc, __FAST_LINE_BUFFER_SIZE)))
return FALSE;
}
// Set the line rasterization function pointers
gc->procs.lineBegin = __fastGenLineBegin;
gc->procs.lineEnd = __fastGenLineEnd;
if (gc->state.line.aliasedWidth > 1)
{
gc->procs.renderLine = __fastGenLineWide;
}
else
{
gc->procs.renderLine = __fastGenLine;
}
return TRUE;
}
/******************************Public*Routine******************************\
*
* __fastLineComputeOffsets
*
* Precomputes static offsets for fast line drawing
*
* History:
* Tue Aug 15 18:10:29 1995 -by- Drew Bliss [drewb]
* Created
*
\**************************************************************************/
void FASTCALL __fastLineComputeOffsets(__GLGENcontext *gengc)
{
GENACCEL *genAccel;
genAccel = (GENACCEL *)gengc->pPrivateArea;
ASSERTOPENGL(genAccel != NULL,
"ComputeFastLineOffsets with no genaccel\n");
// If acceleration is wired-in, set the offsets for line drawing.
// These offsets include the following:
// subtraction of the viewport bias
// addition of the client window origin
// subtraction of .5 to align GL pixel centers with GDI's pixel centers
// addition of 1/32 to round the value which will be converted to
// 28.4 fixed point
#ifdef _CLIENTSIDE_
// Window-relative coordinates
genAccel->fastLineOffsetX = 0 -
gengc->gc.constants.viewportXAdjust - (__GLfloat) (0.5 - 0.03125);
genAccel->fastLineOffsetY = 0 -
gengc->gc.constants.viewportYAdjust - (__GLfloat) (0.5 - 0.03125);
#else
// Screen-relative coordinates
genAccel->fastLineOffsetX = gengc->gc.drawBuffer->buf.xOrigin -
gengc->gc.constants.viewportXAdjust - (__GLfloat) (0.5 - 0.03125);
genAccel->fastLineOffsetY = gengc->gc.drawBuffer->buf.yOrigin -
gengc->gc.constants.viewportYAdjust - (__GLfloat) (0.5 - 0.03125);
#endif
}
/******************************Public*Routine******************************\
* __fastLineComputeColor*
*
* Computes the color index to use for line drawing. These functions are
* called through a function pointer whenever the vertex color changes.
*
* History:
* 22-Mar-1994 -by- Eddie Robinson [v-eddier]
* Wrote it.
\**************************************************************************/
GLubyte vujRGBtoVGA[8] = {
0x0, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf
};
ULONG FASTCALL __fastLineComputeColorRGB4(__GLcontext *gc, __GLcolor *color)
{
__GLGENcontext *gengc = (__GLGENcontext *) gc;
PIXELFORMATDESCRIPTOR *pfmt = &gengc->gsurf.pfd;
int ir, ig, ib;
ir = (int) color->r;
ig = (int) color->g;
ib = (int) color->b;
return (ULONG) vujRGBtoVGA[(ir << pfmt->cRedShift) |
(ig << pfmt->cGreenShift) |
(ib << pfmt->cBlueShift)];
}
ULONG FASTCALL __fastLineComputeColorRGB8(__GLcontext *gc, __GLcolor *color)
{
__GLGENcontext *gengc = (__GLGENcontext *) gc;
PIXELFORMATDESCRIPTOR *pfmt = &gengc->gsurf.pfd;
int ir, ig, ib;
ir = (int) color->r;
ig = (int) color->g;
ib = (int) color->b;
return (ULONG) gengc->pajTranslateVector[(ir << pfmt->cRedShift) |
(ig << pfmt->cGreenShift) |
(ib << pfmt->cBlueShift)];
}
ULONG FASTCALL __fastLineComputeColorRGB(__GLcontext *gc, __GLcolor *color)
{
__GLGENcontext *gengc = (__GLGENcontext *) gc;
PIXELFORMATDESCRIPTOR *pfmt = &gengc->gsurf.pfd;
int ir, ig, ib;
ir = (int) color->r;
ig = (int) color->g;
ib = (int) color->b;
return (ULONG) ((ir << pfmt->cRedShift) |
(ig << pfmt->cGreenShift) |
(ib << pfmt->cBlueShift));
}
ULONG FASTCALL __fastLineComputeColorCI4and8(__GLcontext *gc, __GLcolor *color)
{
__GLGENcontext *gengc = (__GLGENcontext *) gc;
return (ULONG) gengc->pajTranslateVector[(int)color->r];
}
ULONG FASTCALL __fastLineComputeColorCI(__GLcontext *gc, __GLcolor *color)
{
__GLGENcontext *gengc = (__GLGENcontext *) gc;
GLuint *pTrans = (GLuint *) gengc->pajTranslateVector;
return (ULONG) pTrans[(int)(color->r)+1];
}
/******************************Public*Routine******************************\
* __glQueryLineAcceleration
*
* Determines if lines are accelerated through the DDI and performs some
* initialization. Currently, this routine only checks for acceleration via
* the standard DDI. Eventually, it could support checking for acceleration
* via the extended DDI.
*
* History:
* 22-Mar-1994 -by- Eddie Robinson [v-eddier]
* Wrote it.
\**************************************************************************/
void FASTCALL __glQueryLineAcceleration(__GLcontext *gc)
{
__GLGENcontext *gengc = (__GLGENcontext *) gc;
GENACCEL *genAccel = (GENACCEL *) gengc->pPrivateArea;
PIXELFORMATDESCRIPTOR *pfmt;
pfmt = &gengc->gsurf.pfd;
// On the client side we can draw into any surface with GDI
// and (presumably) get the best possible plain 2D line drawing
// performance
genAccel->bFastLineDIBAccel = TRUE;
//XXX eventually, check rxcaps and set appropriate mode bits
genAccel->bFastLineDispAccel = TRUE;
// set modes supported by hardware. These are equivalent to the
// gc->polygon.shader.modeFlags checked in the pick function
genAccel->flLineAccelModes = 0;
// Set the color computation function
if (pfmt->iPixelType == PFD_TYPE_RGBA) {
switch (pfmt->cColorBits) {
case 4:
genAccel->fastLineComputeColor = __fastLineComputeColorRGB4;
break;
case 8:
genAccel->fastLineComputeColor = __fastLineComputeColorRGB8;
break;
case 16:
case 24:
case 32:
genAccel->fastLineComputeColor = __fastLineComputeColorRGB;
break;
default:
genAccel->bFastLineDispAccel = FALSE;
return;
}
} else {
switch (pfmt->cColorBits) {
case 4:
case 8:
genAccel->fastLineComputeColor = __fastLineComputeColorCI4and8;
break;
case 16:
case 24:
case 32:
genAccel->fastLineComputeColor = __fastLineComputeColorCI;
break;
default:
genAccel->bFastLineDispAccel = FALSE;
return;
}
}
}
/**************************************************************************/
// Macros to hide how the single pFastLineBuffer is divided into two
// sections, one for points and one for counts
#define FAST_LINE_FIRST_POINT(genAccel) \
((POINT *)(genAccel)->pFastLineBuffer)
#define FAST_LINE_FIRST_COUNT(genAccel) \
((DWORD *)((genAccel)->pFastLineBuffer+__FAST_LINE_BUFFER_SIZE)- \
__FAST_LINE_BUFFER_COUNTS)
#define FAST_LINE_LAST_POINT(genAccel) \
((POINT *)FAST_LINE_FIRST_COUNT(genAccel)-1)
#define FAST_LINE_LAST_COUNT(genAccel) \
((DWORD *)((genAccel)->pFastLineBuffer+__FAST_LINE_BUFFER_SIZE)-1)
/******************************Public*Routine******************************\
*
* __fastGenLineBegin
*
* Initializes fast line state
*
* History:
* Mon Jan 08 19:22:32 1996 -by- Drew Bliss [drewb]
* Created
*
\**************************************************************************/
void FASTCALL __fastGenLineBegin(__GLcontext *gc)
{
__GLGENcontext *gengc = (__GLGENcontext *)gc;
GENACCEL *genAccel = &gengc->genAccel;
genAccel->pFastLinePoint = FAST_LINE_FIRST_POINT(genAccel)-1;
genAccel->pFastLineCount = FAST_LINE_FIRST_COUNT(genAccel)-1;
genAccel->fastLineCounts = 0;
}
/******************************Public*Routine******************************\
*
* __fastGenLineEnd
*
* Renders any current lines in the fast line buffer and
* then resets the fast line state
*
* History:
* Mon Jan 08 19:22:52 1996 -by- Drew Bliss [drewb]
* Created
*
\**************************************************************************/
void FASTCALL __fastGenLineEnd(__GLcontext *gc)
{
__GLGENcontext *gengc = (__GLGENcontext *)gc;
GENACCEL *genAccel = &gengc->genAccel;
ULONG ulSolidColor;
HDC hdc;
HPEN hpen;
if (genAccel->fastLineCounts == 0)
{
return;
}
// If there is no lock, we must have failed to reacquire the lock
// from the previous call to wglStrokePath. This is an error condition
// and we should not continue.
if (gengc->fsLocks == 0)
{
WARNING("fastGenLineEnd: no lock\n");
return;
}
// We need to sychronize with GDI before making GDI calls
glsrvSynchronizeWithGdi(gengc, gengc->pwndLocked,
COLOR_LOCK_FLAGS | DEPTH_LOCK_FLAGS);
// If this color is the same as the one we've cached, use the
// cached information
hdc = CURRENT_DC_GC(gc);
if (!gengc->fStrokeInvalid && hdc == gengc->hdcStroke)
{
hpen = gengc->hpenStroke;
ASSERTOPENGL(hpen != NULL, "Cached stroke pen is null\n");
}
else
{
if (gengc->hpenStroke != NULL)
{
// Deselect the object before deletion
if (gengc->hdcStroke != NULL)
{
SelectObject(gengc->hdcStroke, GetStockObject(BLACK_PEN));
gengc->hdcStroke = NULL;
}
DeleteObject(gengc->hpenStroke);
}
ulSolidColor = wglTranslateColor(gengc->crStroke, hdc,
gengc, &gengc->gsurf.pfd);
hpen = CreatePen(PS_SOLID, 0, ulSolidColor);
gengc->hpenStroke = hpen;
if (hpen == NULL ||
SelectObject(hdc, hpen) == NULL)
{
if (hpen != NULL)
{
DeleteObject(hpen);
gengc->hpenStroke = NULL;
}
gengc->cStroke.r = -1.0f;
gengc->fStrokeInvalid = TRUE;
goto Exit;
}
gengc->hdcStroke = hdc;
gengc->fStrokeInvalid = FALSE;
}
#ifdef DBG_VERBOSE
{
DWORD i;
DWORD *count;
POINT *pt;
count = FAST_LINE_FIRST_COUNT(genAccel);
pt = FAST_LINE_FIRST_POINT(genAccel);
for (i = 0; i < genAccel->fastLineCounts; i++)
{
DbgPrint("Polyline with %d points at %d\n",
*count, pt-FAST_LINE_FIRST_POINT(genAccel));
pt += *count;
count++;
}
}
#endif
PolyPolyline(hdc,
FAST_LINE_FIRST_POINT(genAccel),
FAST_LINE_FIRST_COUNT(genAccel),
genAccel->fastLineCounts);
Exit:
// No more need for GDI operations
glsrvDecoupleFromGdi(gengc, gengc->pwndLocked,
COLOR_LOCK_FLAGS | DEPTH_LOCK_FLAGS);
// Reset
__fastGenLineBegin(gc);
}
/******************************Public*Routine******************************\
*
* __fastGenLineSetStrokeColor
*
* Updates cached pen with current color if necessary
*
* History:
* Wed Jan 17 20:37:15 1996 -by- Drew Bliss [drewb]
* Created
*
\**************************************************************************/
BOOL __fastGenLineSetStrokeColor(__GLGENcontext *gengc, __GLcolor *color)
{
if (__GL_FLOAT_NE(color->r, gengc->cStroke.r) ||
(gengc->gsurf.pfd.iPixelType == PFD_TYPE_RGBA
&& (__GL_FLOAT_NE(color->g, gengc->cStroke.g) ||
__GL_FLOAT_NE(color->b, gengc->cStroke.b))))
{
ASSERTOPENGL(color->r >= 0.0f, "Invalid color\n");
#ifdef DBG_VERBOSE
if (gengc->cStroke.r >= 0.0f)
{
DbgPrint("Color change\n");
}
#endif
// Flush whatever we have so far
__fastGenLineEnd(&gengc->gc);
// Set current color
if (gengc->gsurf.pfd.iPixelType == PFD_TYPE_RGBA)
gengc->cStroke = *color;
else
gengc->cStroke.r = color->r;
gengc->crStroke =
gengc->genAccel.fastLineComputeColor((__GLcontext *)gengc,
&gengc->cStroke);
// Invalidate cached pen
gengc->fStrokeInvalid = TRUE;
return TRUE;
}
else
{
return FALSE;
}
}
/******************************Public*Routine******************************\
*
* __fastGenLine
*
* Accumulates incoming vertices in the fast line buffer
* Thin line version
*
* History:
* Mon Jan 08 19:23:19 1996 -by- Drew Bliss [drewb]
* Created
*
\**************************************************************************/
void FASTCALL __fastGenLine(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1,
GLuint flags)
{
__GLGENcontext *gengc = (__GLGENcontext *)gc;
GENACCEL *genAccel = &gengc->genAccel;
POINT pt;
#ifdef DBG_VERBOSE
DbgPrint("Counts %d, count %d, flags %X\n",
genAccel->fastLineCounts,
genAccel->pFastLineCount >= FAST_LINE_FIRST_COUNT(genAccel) ?
*genAccel->pFastLineCount : -1,
flags);
#endif
// Check for flushing conditions. We flush if:
// The provoking vertex's color is different from the current color
// This is the first vertex of a line and we don't have space for
// a new count and two vertices
// This is not the first vertex of a line and we don't have space for
// a new vertex
//
// According to spec we have to use color form a second vertex for flat
// shaded case
//
if (__fastGenLineSetStrokeColor(gengc, v1->color))
{
// Since we flushed, the current vertex is now the beginning
// of a polyline
flags |= __GL_LVERT_FIRST;
}
if (((flags & __GL_LVERT_FIRST) != 0 &&
(genAccel->pFastLinePoint+1 >= FAST_LINE_LAST_POINT(genAccel) ||
genAccel->pFastLineCount >= FAST_LINE_LAST_COUNT(genAccel))) ||
((flags & __GL_LVERT_FIRST) == 0 &&
genAccel->pFastLinePoint >= FAST_LINE_LAST_POINT(genAccel)))
{
#ifdef DBG_VERBOSE
DbgPrint("Overflow\n");
#endif
__fastGenLineEnd(gc);
// Since we flushed, the current vertex is now the beginning
// of a polyline
flags |= __GL_LVERT_FIRST;
}
// If we're starting a polyline, update the counts and add
// the vertex data
if (flags & __GL_LVERT_FIRST)
{
#ifdef DBG_VERBOSE
if (genAccel->pFastLineCount >= FAST_LINE_FIRST_COUNT(genAccel))
{
DbgPrint("First ended polyline with %d points\n",
*genAccel->pFastLineCount);
}
#endif
// Check to make sure we don't ever create segments with only
// one vertex
ASSERTOPENGL(genAccel->pFastLineCount <
FAST_LINE_FIRST_COUNT(genAccel) ||
*genAccel->pFastLineCount > 1,
"Line segment with only one vertex\n");
genAccel->fastLineCounts++;
genAccel->pFastLineCount++;
*genAccel->pFastLineCount = 1;
// Compute device coordinates
pt.x = __FAST_LINE_FLTTODEV(v0->window.x + genAccel->fastLineOffsetX);
pt.y = __FAST_LINE_FLTTODEV(v0->window.y + genAccel->fastLineOffsetY);
*(++genAccel->pFastLinePoint) = pt;
}
ASSERTOPENGL(genAccel->pFastLineCount >=
FAST_LINE_FIRST_COUNT(genAccel) &&
*genAccel->pFastLineCount > 0,
"Added fast point without count\n");
// Compute device coordinates
pt.x = __FAST_LINE_FLTTODEV(v1->window.x + genAccel->fastLineOffsetX);
pt.y = __FAST_LINE_FLTTODEV(v1->window.y + genAccel->fastLineOffsetY);
(*genAccel->pFastLineCount)++;
*(++genAccel->pFastLinePoint) = pt;
// Check on counts also
ASSERTOPENGL(genAccel->pFastLineCount <= FAST_LINE_LAST_COUNT(genAccel),
"Fast line count buffer overflow\n");
ASSERTOPENGL(genAccel->pFastLinePoint <= FAST_LINE_LAST_POINT(genAccel),
"Fast line point buffer overflow\n");
// Make sure the current color is being maintained properly
ASSERTOPENGL((v1->color->r == gengc->cStroke.r) &&
(gengc->gsurf.pfd.iPixelType == PFD_TYPE_COLORINDEX ||
(v1->color->g == gengc->cStroke.g &&
v1->color->b == gengc->cStroke.b)),
"Fast line color mismatch\n");
}
/******************************Public*Routine******************************\
*
* __fastGenLineWide
*
* Accumulates incoming vertices in the fast line buffer
* Wide line version
* For wide lines we can't maintain connectivity because of the
* way OpenGL wide lines are defined. Instead, each segment
* of a wide line is decomposed into aliasedWidth unconnected
* line segments
*
* History:
* Tue Jan 09 11:32:10 1996 -by- Drew Bliss [drewb]
* Created
*
\**************************************************************************/
void FASTCALL __fastGenLineWide(__GLcontext *gc, __GLvertex *v0,
__GLvertex *v1, GLuint flags)
{
__GLGENcontext *gengc = (__GLGENcontext *)gc;
GENACCEL *genAccel = &gengc->genAccel;
POINT pt1, pt2;
GLint width;
long adjust;
GLfloat dx, dy;
// Set the current pen color
// According to spec we have to use color form a second vertex for flat
// shaded case
//
__fastGenLineSetStrokeColor(gengc, v1->color);
// We have a wide line segment from v0 to v1
// Compute its width and add an appropriate number of
// side-by-side thin segments to create the wide form
// Compute device coordinates
pt1.x = __FAST_LINE_FLTTODEV(v0->window.x +
genAccel->fastLineOffsetX);
pt1.y = __FAST_LINE_FLTTODEV(v0->window.y +
genAccel->fastLineOffsetY);
pt2.x = __FAST_LINE_FLTTODEV(v1->window.x +
genAccel->fastLineOffsetX);
pt2.y = __FAST_LINE_FLTTODEV(v1->window.y +
genAccel->fastLineOffsetY);
width = gc->state.line.aliasedWidth;
/*
** Compute the minor-axis adjustment for the first line segment
** this can be a fixed point value with 4 fractional bits
*/
adjust = ((width - 1) * __FAST_LINE_UNIT_VALUE) / 2;
// Determine the major axis
dx = v0->window.x - v1->window.x;
if (dx < 0.0)
{
dx = -dx;
}
dy = v0->window.y - v1->window.y;
if (dy < 0.0)
{
dy = -dy;
}
if (dx > dy)
{
pt1.y -= adjust;
pt2.y -= adjust;
while (width-- > 0)
{
// Make sure we have room for another count and two more
// vertices
if (genAccel->pFastLinePoint+1 >= FAST_LINE_LAST_POINT(genAccel) ||
genAccel->pFastLineCount >= FAST_LINE_LAST_COUNT(genAccel))
{
__fastGenLineEnd(gc);
}
genAccel->fastLineCounts++;
genAccel->pFastLineCount++;
*genAccel->pFastLineCount = 2;
*(++genAccel->pFastLinePoint) = pt1;
*(++genAccel->pFastLinePoint) = pt2;
pt1.y++;
pt2.y++;
}
}
else
{
pt1.x -= adjust;
pt2.x -= adjust;
while (width-- > 0)
{
// Make sure we have room for another count and two more
// vertices
if (genAccel->pFastLinePoint+1 >= FAST_LINE_LAST_POINT(genAccel) ||
genAccel->pFastLineCount >= FAST_LINE_LAST_COUNT(genAccel))
{
__fastGenLineEnd(gc);
}
genAccel->fastLineCounts++;
genAccel->pFastLineCount++;
*genAccel->pFastLineCount = 2;
*(++genAccel->pFastLinePoint) = pt1;
*(++genAccel->pFastLinePoint) = pt2;
pt1.x++;
pt2.x++;
}
}
}
#if NT_NO_BUFFER_INVARIANCE
PFN_RENDER_LINE __fastGenRenderLineDIBFuncs[32] = {
__fastGenRenderLineDIBCI8,
__fastGenRenderLineDIBCI16,
__fastGenRenderLineDIBCIRGB,
__fastGenRenderLineDIBCIBGR,
__fastGenRenderLineDIBCI32,
NULL,
NULL,
NULL,
__fastGenRenderLineDIBRGB8,
__fastGenRenderLineDIBRGB16,
__fastGenRenderLineDIBRGB,
__fastGenRenderLineDIBBGR,
__fastGenRenderLineDIBRGB32,
NULL,
NULL,
NULL,
__fastGenRenderLineWideDIBCI8,
__fastGenRenderLineWideDIBCI16,
__fastGenRenderLineWideDIBCIRGB,
__fastGenRenderLineWideDIBCIBGR,
__fastGenRenderLineWideDIBCI32,
NULL,
NULL,
NULL,
__fastGenRenderLineWideDIBRGB8,
__fastGenRenderLineWideDIBRGB16,
__fastGenRenderLineWideDIBRGB,
__fastGenRenderLineWideDIBBGR,
__fastGenRenderLineWideDIBRGB32,
NULL,
NULL,
NULL
};
/******************************Public*Routine******************************\
* __fastGenLineSetupDIB
*
* Initializes the accelerated line-rendering function pointer for bitmap
* surfaces. All accelerated lines drawn to bitmaps are drawn by the
* gc->procs.renderLine funtion pointer.
*
* History:
* 29-Mar-1994 -by- Eddie Robinson [v-eddier]
* Wrote it.
\**************************************************************************/
BOOL FASTCALL __fastGenLineSetupDIB(__GLcontext *gc)
{
__GLGENcontext *gengc = (__GLGENcontext *) gc;
PIXELFORMATDESCRIPTOR *pfmt = &gengc->gsurf.pfd;
GLint index;
switch (pfmt->cColorBits) {
case 8:
index = 0;
break;
case 16:
index = 1;
break;
case 24:
if (pfmt->cRedShift == 0)
index = 2;
else
index = 3;
break;
case 32:
index = 4;
break;
}
if (gc->polygon.shader.modeFlags & __GL_SHADE_RGB)
index |= 0x08;
if (gc->state.line.aliasedWidth > 1)
index |= 0x10;
gc->procs.renderLine = __fastGenRenderLineDIBFuncs[index];
return TRUE;
}
void FASTCALL __fastGenRenderLineDIBRGB8(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned char *addr, pixel;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = (unsigned char) __fastLineComputeColorRGB8(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + x +
(y * cfb->buf.outerWidth));
addrLittle = gc->line.options.xLittle +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = gc->line.options.xBig +
(gc->line.options.yBig * cfb->buf.outerWidth);
__FAST_LINE_STROKE_DIB
}
void FASTCALL __fastGenRenderLineDIBRGB16(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned short *addr, pixel;
GLint x, y, outerWidth_2;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = (unsigned short) __fastLineComputeColorRGB(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned short *) ((GLint)cfb->buf.base + (x << 1) +
(y * cfb->buf.outerWidth));
outerWidth_2 = cfb->buf.outerWidth >> 1;
addrLittle = gc->line.options.xLittle +
(gc->line.options.yLittle * outerWidth_2);
addrBig = gc->line.options.xBig +
(gc->line.options.yBig * outerWidth_2);
__FAST_LINE_STROKE_DIB
}
void FASTCALL __fastGenRenderLineDIBRGB(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolor *cp;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned char *addr, ir, ig, ib;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
cp = v1->color;
ir = (unsigned char) cp->r;
ig = (unsigned char) cp->g;
ib = (unsigned char) cp->b;
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + (x * 3) +
(y * cfb->buf.outerWidth));
addrLittle = (gc->line.options.xLittle * 3) +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = (gc->line.options.xBig * 3) +
(gc->line.options.yBig * cfb->buf.outerWidth);
__FAST_LINE_STROKE_DIB24
}
void FASTCALL __fastGenRenderLineDIBBGR(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolor *cp;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned char *addr, ir, ig, ib;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
cp = v1->color;
ir = (unsigned char) cp->b;
ig = (unsigned char) cp->g;
ib = (unsigned char) cp->r;
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + (x * 3) +
(y * cfb->buf.outerWidth));
addrLittle = (gc->line.options.xLittle * 3) +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = (gc->line.options.xBig * 3) +
(gc->line.options.yBig * cfb->buf.outerWidth);
__FAST_LINE_STROKE_DIB24
}
void FASTCALL __fastGenRenderLineDIBRGB32(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned long *addr, pixel;
GLint x, y, outerWidth_4;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = __fastLineComputeColorRGB(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned long *) ((GLint)cfb->buf.base + (x << 2) +
(y * cfb->buf.outerWidth));
outerWidth_4 = cfb->buf.outerWidth >> 2;
addrLittle = gc->line.options.xLittle +
(gc->line.options.yLittle * outerWidth_4);
addrBig = gc->line.options.xBig +
(gc->line.options.yBig * outerWidth_4);
__FAST_LINE_STROKE_DIB
}
void FASTCALL __fastGenRenderLineDIBCI8(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned char *addr, pixel;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = (unsigned char) __fastLineComputeColorCI4and8(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + x +
(y * cfb->buf.outerWidth));
addrLittle = gc->line.options.xLittle +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = gc->line.options.xBig +
(gc->line.options.yBig * cfb->buf.outerWidth);
__FAST_LINE_STROKE_DIB
}
void FASTCALL __fastGenRenderLineDIBCI16(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned short *addr, pixel;
GLint x, y, outerWidth_2;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = (unsigned short) __fastLineComputeColorCI(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned short *) ((GLint)cfb->buf.base + (x << 1) +
(y * cfb->buf.outerWidth));
outerWidth_2 = cfb->buf.outerWidth >> 1;
addrLittle = gc->line.options.xLittle +
(gc->line.options.yLittle * outerWidth_2);
addrBig = gc->line.options.xBig +
(gc->line.options.yBig * outerWidth_2);
__FAST_LINE_STROKE_DIB
}
/*
** XXX GRE swabs bytes in palette, DIBCIRGB & DIBCIBGR are identical now
*/
void FASTCALL __fastGenRenderLineDIBCIRGB(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned char *addr, ir, ig, ib;
unsigned long pixel;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
// Red is lsb of pixel
pixel = __fastLineComputeColorCI(gc, v1->color);
ir = (unsigned char) (pixel & 0xff);
ig = (unsigned char) ((pixel >> 8) & 0xff);
ib = (unsigned char) ((pixel >> 16) & 0xff);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + (x * 3) +
(y * cfb->buf.outerWidth));
addrLittle = (gc->line.options.xLittle * 3) +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = (gc->line.options.xBig * 3) +
(gc->line.options.yBig * cfb->buf.outerWidth);
__FAST_LINE_STROKE_DIB24
}
void FASTCALL __fastGenRenderLineDIBCIBGR(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned char *addr, ir, ig, ib;
unsigned long pixel;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
// Blue is lsb of pixel
pixel = __fastLineComputeColorCI(gc, v1->color);
// Swap blue and red
ir = (unsigned char) (pixel & 0xff);
ig = (unsigned char) ((pixel >> 8) & 0xff);
ib = (unsigned char) ((pixel >> 16) & 0xff);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + (x * 3) +
(y * cfb->buf.outerWidth));
addrLittle = (gc->line.options.xLittle * 3) +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = (gc->line.options.xBig * 3) +
(gc->line.options.yBig * cfb->buf.outerWidth);
__FAST_LINE_STROKE_DIB24
}
void FASTCALL __fastGenRenderLineDIBCI32(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle;
unsigned long *addr, pixel;
GLint x, y, outerWidth_4;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = __fastLineComputeColorCI(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned long *) ((GLint)cfb->buf.base + (x << 2) +
(y * cfb->buf.outerWidth));
outerWidth_4 = cfb->buf.outerWidth >> 2;
addrLittle = gc->line.options.xLittle +
(gc->line.options.yLittle * outerWidth_4);
addrBig = gc->line.options.xBig +
(gc->line.options.yBig * outerWidth_4);
__FAST_LINE_STROKE_DIB
}
void FASTCALL __fastGenRenderLineWideDIBRGB8(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned char *addr, pixel;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = (unsigned char) __fastLineComputeColorRGB8(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + x +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = cfb->buf.outerWidth;
addrLittle = gc->line.options.xLittle +
((gc->line.options.yLittle - width) * cfb->buf.outerWidth);
addrBig = gc->line.options.xBig +
((gc->line.options.yBig - width) * cfb->buf.outerWidth);
} else {
addrMinor = 1;
addrLittle = gc->line.options.xLittle - width +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = gc->line.options.xBig - width +
(gc->line.options.yBig * cfb->buf.outerWidth);
}
__FAST_LINE_STROKE_DIB_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBRGB16(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned short *addr, pixel;
GLint x, y, outerWidth_2;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = (unsigned short) __fastLineComputeColorRGB(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned short *) ((GLint)cfb->buf.base + (x << 1) +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
outerWidth_2 = cfb->buf.outerWidth >> 1;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = outerWidth_2;
addrLittle = gc->line.options.xLittle +
((gc->line.options.yLittle - width) * outerWidth_2);
addrBig = gc->line.options.xBig +
((gc->line.options.yBig - width) * outerWidth_2);
} else {
addrMinor = 1;
addrLittle = gc->line.options.xLittle - width +
(gc->line.options.yLittle * outerWidth_2);
addrBig = gc->line.options.xBig - width +
(gc->line.options.yBig * outerWidth_2);
}
__FAST_LINE_STROKE_DIB_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBRGB(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolor *cp;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned char *addr, ir, ig, ib;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
cp = v1->color;
ir = (unsigned char) cp->r;
ig = (unsigned char) cp->g;
ib = (unsigned char) cp->b;
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + (x * 3) +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = cfb->buf.outerWidth;
addrLittle = (gc->line.options.xLittle * 3) +
((gc->line.options.yLittle - width) * cfb->buf.outerWidth);
addrBig = (gc->line.options.xBig * 3) +
((gc->line.options.yBig - width) * cfb->buf.outerWidth);
} else {
addrMinor = 3;
addrLittle = ((gc->line.options.xLittle - width) * 3) +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = ((gc->line.options.xBig - width) * 3) +
(gc->line.options.yBig * cfb->buf.outerWidth);
}
__FAST_LINE_STROKE_DIB24_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBBGR(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolor *cp;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned char *addr, ir, ig, ib;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
cp = v1->color;
ir = (unsigned char) cp->b;
ig = (unsigned char) cp->g;
ib = (unsigned char) cp->r;
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + (x * 3) +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = cfb->buf.outerWidth;
addrLittle = (gc->line.options.xLittle * 3) +
((gc->line.options.yLittle - width) * cfb->buf.outerWidth);
addrBig = (gc->line.options.xBig * 3) +
((gc->line.options.yBig - width) * cfb->buf.outerWidth);
} else {
addrMinor = 3;
addrLittle = ((gc->line.options.xLittle - width) * 3) +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = ((gc->line.options.xBig - width) * 3) +
(gc->line.options.yBig * cfb->buf.outerWidth);
}
__FAST_LINE_STROKE_DIB24_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBRGB32(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned long *addr, pixel;
GLint x, y, outerWidth_4;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = __fastLineComputeColorRGB(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned long *) ((GLint)cfb->buf.base + (x << 2) +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
outerWidth_4 = cfb->buf.outerWidth >> 2;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = outerWidth_4;
addrLittle = gc->line.options.xLittle +
((gc->line.options.yLittle - width) * outerWidth_4);
addrBig = gc->line.options.xBig +
((gc->line.options.yBig - width) * outerWidth_4);
} else {
addrMinor = 1;
addrLittle = gc->line.options.xLittle - width +
(gc->line.options.yLittle * outerWidth_4);
addrBig = gc->line.options.xBig - width +
(gc->line.options.yBig * outerWidth_4);
}
__FAST_LINE_STROKE_DIB_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBCI8(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned char *addr, pixel;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = (unsigned char) __fastLineComputeColorCI4and8(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + x +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = cfb->buf.outerWidth;
addrLittle = gc->line.options.xLittle +
((gc->line.options.yLittle - width) * cfb->buf.outerWidth);
addrBig = gc->line.options.xBig +
((gc->line.options.yBig - width) * cfb->buf.outerWidth);
} else {
addrMinor = 1;
addrLittle = gc->line.options.xLittle - width +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = gc->line.options.xBig - width +
(gc->line.options.yBig * cfb->buf.outerWidth);
}
__FAST_LINE_STROKE_DIB_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBCI16(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned short *addr, pixel;
GLint x, y, outerWidth_2;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = (unsigned short) __fastLineComputeColorCI(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned short *) ((GLint)cfb->buf.base + (x << 1) +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
outerWidth_2 = cfb->buf.outerWidth >> 1;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = outerWidth_2;
addrLittle = gc->line.options.xLittle +
((gc->line.options.yLittle - width) * outerWidth_2);
addrBig = gc->line.options.xBig +
((gc->line.options.yBig - width) * outerWidth_2);
} else {
addrMinor = 1;
addrLittle = gc->line.options.xLittle - width +
(gc->line.options.yLittle * outerWidth_2);
addrBig = gc->line.options.xBig - width +
(gc->line.options.yBig * outerWidth_2);
}
__FAST_LINE_STROKE_DIB_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBCIRGB(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned char *addr, ir, ig, ib;
unsigned long pixel;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
// Red is lsb of pixel
pixel = __fastLineComputeColorCI(gc, v1->color);
ir = (unsigned char) (pixel & 0xff);
ig = (unsigned char) ((pixel >> 8) & 0xff);
ib = (unsigned char) ((pixel >> 16) & 0xff);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + (x * 3) +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = cfb->buf.outerWidth;
addrLittle = (gc->line.options.xLittle * 3) +
((gc->line.options.yLittle - width) * cfb->buf.outerWidth);
addrBig = (gc->line.options.xBig * 3) +
((gc->line.options.yBig - width) * cfb->buf.outerWidth);
} else {
addrMinor = 3;
addrLittle = ((gc->line.options.xLittle - width) * 3) +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = ((gc->line.options.xBig - width) * 3) +
(gc->line.options.yBig * cfb->buf.outerWidth);
}
__FAST_LINE_STROKE_DIB24_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBCIBGR(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned char *addr, ir, ig, ib;
unsigned long pixel;
GLint x, y;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
// Blue is lsb of pixel
pixel = __fastLineComputeColorCI(gc, v1->color);
// Swap blue and red
ir = (unsigned char) (pixel & 0xff);
ig = (unsigned char) ((pixel >> 8) & 0xff);
ib = (unsigned char) ((pixel >> 16) & 0xff);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned char *) ((GLint)cfb->buf.base + (x * 3) +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = cfb->buf.outerWidth;
addrLittle = (gc->line.options.xLittle * 3) +
((gc->line.options.yLittle - width) * cfb->buf.outerWidth);
addrBig = (gc->line.options.xBig * 3) +
((gc->line.options.yBig - width) * cfb->buf.outerWidth);
} else {
addrMinor = 3;
addrLittle = ((gc->line.options.xLittle - width) * 3) +
(gc->line.options.yLittle * cfb->buf.outerWidth);
addrBig = ((gc->line.options.xBig - width) * 3) +
(gc->line.options.yBig * cfb->buf.outerWidth);
}
__FAST_LINE_STROKE_DIB24_WIDE
}
void FASTCALL __fastGenRenderLineWideDIBCI32(__GLcontext *gc, __GLvertex *v0, __GLvertex *v1)
{
GLint len, fraction, dfraction, width, w;
__GLcolorBuffer *cfb;
GLint addrBig, addrLittle, addrMinor;
unsigned long *addr, pixel;
GLint x, y, outerWidth_4;
GLboolean init;
CHOP_ROUND_ON();
init = __glInitLineData(gc, v0, v1);
CHOP_ROUND_OFF();
if (!init) return;
pixel = __fastLineComputeColorCI(gc, v1->color);
cfb = gc->drawBuffer;
x = __GL_UNBIAS_X(gc, gc->line.options.xStart) + cfb->buf.xOrigin;
y = __GL_UNBIAS_Y(gc, gc->line.options.yStart) + cfb->buf.yOrigin;
addr = (unsigned long *) ((GLint)cfb->buf.base + (x << 2) +
(y * cfb->buf.outerWidth));
width = gc->line.options.width;
outerWidth_4 = cfb->buf.outerWidth >> 2;
if (gc->line.options.axis == __GL_X_MAJOR) {
addrMinor = outerWidth_4;
addrLittle = gc->line.options.xLittle +
((gc->line.options.yLittle - width) * outerWidth_4);
addrBig = gc->line.options.xBig +
((gc->line.options.yBig - width) * outerWidth_4);
} else {
addrMinor = 1;
addrLittle = gc->line.options.xLittle - width +
(gc->line.options.yLittle * outerWidth_4);
addrBig = gc->line.options.xBig - width +
(gc->line.options.yBig * outerWidth_4);
}
__FAST_LINE_STROKE_DIB_WIDE
}
#endif //NT_NO_BUFFER_INVARIANCE
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