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updated SVGA sources from Mesa 3.2

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This commit is contained in:
Brian Paul 2000-01-22 20:08:36 +00:00
parent 99dd0d4092
commit 069965f170
12 changed files with 1469 additions and 335 deletions
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617
src/mesa/drivers/svga/svgamesa.c
View file

@ -1,9 +1,9 @@
/* $Id: svgamesa.c,v 1.1 1999/08/19 00:55:42 jtg Exp $ */
/* $Id: svgamesa.c,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.0
* Copyright (C) 1995-1998 Brian Paul
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -21,23 +21,19 @@
*/
/*
* Linux SVGA/Mesa interface.
*
* This interface is not finished! Still have to implement pixel
* reading functions and double buffering. Then, look into accelerated
* line and polygon rendering. And, clean up a bunch of other stuff.
* Any volunteers?
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#ifdef HAVE_CONFIG_H
#include "conf.h"
#endif
#ifdef SVGA
#ifdef PC_HEADER
#include "all.h"
#else
@ -48,35 +44,164 @@
#include "context.h"
#include "matrix.h"
#include "types.h"
#include <string.h>
#endif
#include "svgapix.h"
#include "svgamesa8.h"
#include "svgamesa15.h"
#include "svgamesa16.h"
#include "svgamesa24.h"
#include "svgamesa32.h"
struct svgamesa_context {
GLcontext *gl_ctx; /* the core Mesa context */
GLvisual *gl_vis; /* describes the color buffer */
GLframebuffer *gl_buffer; /* the ancillary buffers */
GLuint index; /* current color index */
GLint red, green, blue; /* current rgb color */
GLint width, height; /* size of color buffer */
GLint depth; /* bits per pixel (8,16,24 or 32) */
};
struct svga_buffer SVGABuffer;
vga_modeinfo * SVGAInfo;
SVGAMesaContext SVGAMesa; /* the current context */
#ifdef SVGA_DEBUG
static SVGAMesaContext SVGAMesa = NULL; /* the current context */
#include <sys/types.h>
#include <signal.h>
FILE * logfile;
char cbuf[1024]={0};
void SVGAlog(char * what)
{
logfile=fopen("svgamesa.log","a");
if (!logfile) return;
fprintf(logfile,"%s\n",what);
fclose(logfile);
}
#endif
/*
* Convert Mesa window Y coordinate to VGA screen Y coordinate:
*/
#define FLIP(Y) (SVGAMesa->height-(Y)-1)
/**********************************************************************/
/***** Init stuff... *****/
/**********************************************************************/
int SVGAMesaInit( int GraphMode )
{
vga_init();
if (!vga_hasmode(GraphMode))
{
fprintf(stderr,"GraphMode %d unavailable...",GraphMode);
#ifdef SVGA_DEBUG
SVGAlog("SVGAMesaInit: invalid GraphMode (doesn't exist)");
#endif
return(1);
}
SVGAInfo=vga_getmodeinfo(GraphMode);
if (SVGAInfo->flags & IS_MODEX)
{
fprintf(stderr,"ModeX not implemented...");
#ifdef SVGA_DEBUG
SVGAlog("SVGAMesaInit: invalid GraphMode (ModeX)");
#endif
return(2);
}
if (!SVGAInfo->bytesperpixel)
{
fprintf(stderr,"1 / 4 bit color not implemented...");
#ifdef SVGA_DEBUG
SVGAlog("SVGAMesaInit: invalid GraphMode (1 or 4 bit)");
#endif
return(3);
}
switch (SVGAInfo->colors) {
case 256: SVGABuffer.Depth = 8; break;
case 32768: SVGABuffer.Depth = 15; break;
case 65536: SVGABuffer.Depth = 16; break;
default: SVGABuffer.Depth = SVGAInfo->bytesperpixel<<3; break;
}
SVGABuffer.BufferSize=SVGAInfo->linewidth*SVGAInfo->height;
#ifdef SVGA_DEBUG
sprintf(cbuf,"SVGAMesaInit: double buffer info.\n" \
" depth : %d\n" \
" mode : %d\n" \
" width : %d\n" \
" height : %d\n" \
" bufsize: %d\n", \
SVGABuffer.Depth,GraphMode,SVGAInfo->linewidth, \
SVGAInfo->height,SVGABuffer.BufferSize);
SVGAlog(cbuf);
#endif
SVGABuffer.FrontBuffer=(void*)malloc(SVGABuffer.BufferSize + 4);
if (!SVGABuffer.FrontBuffer) {
{
fprintf(stderr,"Not enough RAM for FRONT_LEFT_BUFFER...");
#ifdef SVGA_DEBUG
SVGAlog("SVGAMesaInit: Not enough RAM (front buffer)");
#endif
return(4);
}
}
#ifdef SVGA_DEBUG
sprintf(cbuf,"SVGAMesaInit: FrontBuffer - %p",SVGABuffer.FrontBuffer);
SVGAlog(cbuf);
#endif
SVGABuffer.BackBuffer=(void*)malloc(SVGABuffer.BufferSize + 4);
if (!SVGABuffer.BackBuffer) {
{
free(SVGABuffer.FrontBuffer);
fprintf(stderr,"Not enough RAM for BACK_LEFT_BUFFER...");
#ifdef SVGA_DEBUG
SVGAlog("SVGAMesaInit: Not enough RAM (back buffer)");
#endif
return(5);
}
}
#ifdef SVGA_DEBUG
sprintf(cbuf,"SVGAMesaInit: BackBuffer - %p",SVGABuffer.BackBuffer);
SVGAlog(cbuf);
#endif
vga_setmode(GraphMode);
SVGABuffer.VideoRam=vga_getgraphmem();
#ifdef SVGA_DEBUG
sprintf(cbuf,"SVGAMesaInit: VRAM - %p",SVGABuffer.VideoRam);
SVGAlog(cbuf);
sprintf(cbuf,"SVGAMesaInit: done. (Mode %d)",GraphMode);
SVGAlog(cbuf);
#endif
return 0;
}
int SVGAMesaClose( void )
{
vga_setmode(TEXT);
free(SVGABuffer.FrontBuffer);
free(SVGABuffer.BackBuffer);
return 0;
}
void SVGAMesaSetCI(int ndx, GLubyte red, GLubyte green, GLubyte blue)
{
if (ndx<256) vga_setpalette(ndx, red>>2, green>>2, blue>>2);
}
/**********************************************************************/
/***** Miscellaneous functions *****/
/**********************************************************************/
static void copy_buffer( GLubyte * buffer) {
int size = SVGABuffer.BufferSize, page = 0;
#ifdef SVGA_DEBUG
sprintf(cbuf,"copy_buffer: copy %p to %p",buffer,SVGABuffer.VideoRam);
SVGAlog(cbuf);
#endif
while(size>0) {
vga_setpage(page++);
if (size>>16) {
memcpy(SVGABuffer.VideoRam,buffer,0x10000);
buffer+=0x10000;
}else{
memcpy(SVGABuffer.VideoRam,buffer,size & 0xffff);
}
size-=0xffff;
}
}
static void get_buffer_size( GLcontext *ctx, GLuint *width, GLuint *height )
{
@ -84,279 +209,33 @@ static void get_buffer_size( GLcontext *ctx, GLuint *width, GLuint *height )
*height = SVGAMesa->height = vga_getydim();
}
/* Set current color index */
static void set_index( GLcontext *ctx, GLuint index )
{
SVGAMesa->index = index;
vga_setcolor( index );
}
/* Set current drawing color */
static void set_color( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->red = red;
SVGAMesa->green = green;
SVGAMesa->blue = blue;
vga_setrgbcolor( red, green, blue );
}
static void clear_index( GLcontext *ctx, GLuint index )
{
/* TODO: Implements glClearIndex() */
}
static void clear_color( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
/* TODO: Implements glClearColor() */
}
static GLbitfield clear( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
if (mask & GL_COLOR_BUFFER_BIT) {
vga_clear();
}
return mask & (~GL_COLOR_BUFFER_BIT);
}
static GLboolean set_buffer( GLcontext *ctx, GLenum buffer )
{
/* TODO: implement double buffering and use this function to select */
/* between front and back buffers. */
void * tmpptr;
if (buffer == GL_FRONT_LEFT)
return GL_TRUE;
{
/* vga_waitretrace(); */
copy_buffer(SVGABuffer.FrontBuffer);
tmpptr=SVGABuffer.BackBuffer;
SVGABuffer.BackBuffer=SVGABuffer.FrontBuffer;
SVGABuffer.FrontBuffer=tmpptr;
return GL_TRUE;
}
else if (buffer == GL_BACK_LEFT)
return GL_TRUE;
{
/* vga_waitretrace(); */
copy_buffer(SVGABuffer.BackBuffer);
return GL_TRUE;
}
else
return GL_FALSE;
}
/**********************************************************************/
/***** Write spans of pixels *****/
/***** *****/
/**********************************************************************/
static void write_ci32_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLuint index[], const GLubyte mask[] )
{
int i;
y = FLIP(y);
for (i=0;i<n;i++,x++) {
if (mask[i]) {
vga_setcolor( index[i] );
vga_drawpixel( x, y );
}
}
}
static void write_ci8_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte index[], const GLubyte mask[] )
{
int i;
y = FLIP(y);
for (i=0;i<n;i++,x++) {
if (mask[i]) {
vga_setcolor( index[i] );
vga_drawpixel( x, y );
}
}
}
static void write_mono_ci_span( const GLcontext *ctx, GLuint n,
GLint x, GLint y, const GLubyte mask[] )
{
int i;
y = FLIP(y);
/* use current color index */
vga_setcolor( SVGAMesa->index );
for (i=0;i<n;i++,x++) {
if (mask[i]) {
vga_drawpixel( x, y );
}
}
}
static void write_rgba_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
y=FLIP(y);
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, x++) {
if (mask[i]) {
vga_setrgbcolor( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
vga_drawpixel( x, y );
}
}
}
else {
/* draw all pixels */
for (i=0; i<n; i++, x++) {
vga_setrgbcolor( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
vga_drawpixel( x, y );
}
}
}
static void write_mono_rgba_span( const GLcontext *ctx,
GLuint n, GLint x, GLint y,
const GLubyte mask[])
{
int i;
y=FLIP(y);
/* use current rgb color */
vga_setrgbcolor( SVGAMesa->red, SVGAMesa->green, SVGAMesa->blue );
for (i=0; i<n; i++, x++) {
if (mask[i]) {
vga_drawpixel( x, y );
}
}
}
/**********************************************************************/
/***** Read spans of pixels *****/
/**********************************************************************/
static void read_ci32_span( const GLcontext *ctx,
GLuint n, GLint x, GLint y, GLuint index[])
{
int i;
y = FLIP(y);
for (i=0; i<n; i++,x++) {
index[i] = vga_getpixel( x, y );
}
}
static void read_rgba_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
GLubyte rgba[][4] )
{
int i;
for (i=0; i<n; i++, x++) {
/* TODO */
}
}
/**********************************************************************/
/***** Write arrays of pixels *****/
/**********************************************************************/
static void write_ci32_pixels( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLuint index[], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++) {
if (mask[i]) {
vga_setcolor( index[i] );
vga_drawpixel( x[i], FLIP(y[i]) );
}
}
}
static void write_mono_ci_pixels( const GLcontext *ctx, GLuint n,
const GLint x[], const GLint y[],
const GLubyte mask[] )
{
int i;
/* use current color index */
vga_setcolor( SVGAMesa->index );
for (i=0; i<n; i++) {
if (mask[i]) {
vga_drawpixel( x[i], FLIP(y[i]) );
}
}
}
static void write_rgba_pixels( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++) {
if (mask[i]) {
vga_setrgbcolor( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
vga_drawpixel( x[i], FLIP(y[i]) );
}
}
}
static void write_mono_rgba_pixels( const GLcontext *ctx,
GLuint n,
const GLint x[], const GLint y[],
const GLubyte mask[] )
{
int i;
/* use current rgb color */
vga_setrgbcolor( SVGAMesa->red, SVGAMesa->green, SVGAMesa->blue );
for (i=0; i<n; i++) {
if (mask[i]) {
vga_drawpixel( x[i], FLIP(y[i]) );
}
}
}
/**********************************************************************/
/***** Read arrays of pixels *****/
/**********************************************************************/
/* Read an array of color index pixels. */
static void read_ci32_pixels( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
GLuint index[], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++,x++) {
index[i] = vga_getpixel( x[i], FLIP(y[i]) );
}
}
static void read_rgba_pixels( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
GLubyte rgba[][4], const GLubyte mask[] )
{
/* TODO */
}
static void svgamesa_update_state( GLcontext *ctx )
{
/* Initialize all the pointers in the DD struct. Do this whenever */
@ -364,13 +243,6 @@ static void svgamesa_update_state( GLcontext *ctx )
ctx->Driver.UpdateState = svgamesa_update_state;
ctx->Driver.ClearIndex = clear_index;
ctx->Driver.ClearColor = clear_color;
ctx->Driver.Clear = clear;
ctx->Driver.Index = set_index;
ctx->Driver.Color = set_color;
ctx->Driver.SetBuffer = set_buffer;
ctx->Driver.GetBufferSize = get_buffer_size;
@ -378,59 +250,119 @@ static void svgamesa_update_state( GLcontext *ctx )
ctx->Driver.LineFunc = NULL;
ctx->Driver.TriangleFunc = NULL;
/* Pixel/span writing functions: */
/* TODO: use different funcs for 8, 16, 32-bit depths */
ctx->Driver.WriteRGBASpan = write_rgba_span;
ctx->Driver.WriteMonoRGBASpan = write_mono_rgba_span;
ctx->Driver.WriteRGBAPixels = write_rgba_pixels;
ctx->Driver.WriteMonoRGBAPixels = write_mono_rgba_pixels;
ctx->Driver.WriteCI32Span = write_ci32_span;
ctx->Driver.WriteCI8Span = write_ci8_span;
ctx->Driver.WriteMonoCISpan = write_mono_ci_span;
ctx->Driver.WriteCI32Pixels = write_ci32_pixels;
ctx->Driver.WriteMonoCIPixels = write_mono_ci_pixels;
switch (SVGABuffer.Depth) {
case 8: ctx->Driver.ClearIndex = __clear_index8;
ctx->Driver.Clear = __clear8;
ctx->Driver.Index = __set_index8;
/* Pixel/span reading functions: */
/* TODO: use different funcs for 8, 16, 32-bit depths */
ctx->Driver.ReadCI32Span = read_ci32_span;
ctx->Driver.ReadRGBASpan = read_rgba_span;
ctx->Driver.ReadCI32Pixels = read_ci32_pixels;
ctx->Driver.ReadRGBAPixels = read_rgba_pixels;
ctx->Driver.ReadCI32Span = __read_ci32_span8;
ctx->Driver.ReadCI32Pixels = __read_ci32_pixels8;
ctx->Driver.WriteCI8Span = __write_ci8_span8;
ctx->Driver.WriteCI32Span = __write_ci32_span8;
ctx->Driver.WriteCI32Pixels = __write_ci32_pixels8;
ctx->Driver.WriteMonoCISpan = __write_mono_ci_span8;
ctx->Driver.WriteMonoCIPixels = __write_mono_ci_pixels8;
#ifdef SVGA_DEBUG
SVGAlog("SVGAUpdateState: 8 bit mode.");
#endif
break;
case 15: ctx->Driver.ClearColor = __clear_color15;
ctx->Driver.Clear = __clear15;
ctx->Driver.Color = __set_color15;
ctx->Driver.ReadRGBASpan = __read_rgba_span15;
ctx->Driver.ReadRGBAPixels = __read_rgba_pixels15;
ctx->Driver.WriteRGBASpan = __write_rgba_span15;
ctx->Driver.WriteRGBAPixels = __write_rgba_pixels15;
ctx->Driver.WriteMonoRGBASpan = __write_mono_rgba_span15;
ctx->Driver.WriteMonoRGBAPixels = __write_mono_rgba_pixels15;
#ifdef SVGA_DEBUG
SVGAlog("SVGAUpdateState: 15 bit mode.");
#endif
break;
case 16: ctx->Driver.ClearColor = __clear_color16;
ctx->Driver.Clear = __clear16;
ctx->Driver.Color = __set_color16;
ctx->Driver.ReadRGBASpan = __read_rgba_span16;
ctx->Driver.ReadRGBAPixels = __read_rgba_pixels16;
ctx->Driver.WriteRGBASpan = __write_rgba_span16;
ctx->Driver.WriteRGBAPixels = __write_rgba_pixels16;
ctx->Driver.WriteMonoRGBASpan = __write_mono_rgba_span16;
ctx->Driver.WriteMonoRGBAPixels = __write_mono_rgba_pixels16;
break;
#ifdef SVGA_DEBUG
SVGAlog("SVGAUpdateState: 16 bit mode.");
#endif
case 24: ctx->Driver.ClearColor = __clear_color24;
ctx->Driver.Clear = __clear24;
ctx->Driver.Color = __set_color24;
ctx->Driver.ReadRGBASpan = __read_rgba_span24;
ctx->Driver.ReadRGBAPixels = __read_rgba_pixels24;
ctx->Driver.WriteRGBASpan = __write_rgba_span24;
ctx->Driver.WriteRGBAPixels = __write_rgba_pixels24;
ctx->Driver.WriteMonoRGBASpan = __write_mono_rgba_span24;
ctx->Driver.WriteMonoRGBAPixels = __write_mono_rgba_pixels24;
break;
#ifdef SVGA_DEBUG
SVGAlog("SVGAUpdateState: 32 bit mode.");
#endif
case 32: ctx->Driver.ClearColor = __clear_color32;
ctx->Driver.Clear = __clear32;
ctx->Driver.Color = __set_color32;
ctx->Driver.ReadRGBASpan = __read_rgba_span32;
ctx->Driver.ReadRGBAPixels = __read_rgba_pixels32;
ctx->Driver.WriteRGBASpan = __write_rgba_span32;
ctx->Driver.WriteRGBAPixels = __write_rgba_pixels32;
ctx->Driver.WriteMonoRGBASpan = __write_mono_rgba_span32;
ctx->Driver.WriteMonoRGBAPixels = __write_mono_rgba_pixels32;
}
}
/*
* Create a new VGA/Mesa context and return a handle to it.
*/
SVGAMesaContext SVGAMesaCreateContext( GLboolean doubleBuffer )
{
SVGAMesaContext ctx;
#ifndef DEV
GLboolean rgb_flag;
GLfloat redscale, greenscale, bluescale, alphascale;
GLboolean alpha_flag = GL_FALSE;
int colors;
GLint index_bits;
GLint redbits, greenbits, bluebits, alphabits;
/* determine if we're in RGB or color index mode */
colors = vga_getcolors();
if (colors==32768) {
if ((SVGABuffer.Depth==32) || (SVGABuffer.Depth==24)) {
rgb_flag = GL_TRUE;
redscale = greenscale = bluescale = alphascale = 255.0;
redbits = greenbits = bluebits = 8;
alphabits = 0;
index_bits = 0;
}
else if (colors==256) {
else if (SVGABuffer.Depth==8) {
rgb_flag = GL_FALSE;
redscale = greenscale = bluescale = alphascale = 0.0;
redbits = greenbits = bluebits = alphabits = 0;
index_bits = 8;
}
else {
printf(">16 bit color not implemented yet!\n");
return NULL;
else if (SVGABuffer.Depth==15) {
rgb_flag = GL_TRUE;
redscale = greenscale = bluescale = alphascale = 31.0;
redbits = greenbits = bluebits = 5;
alphabits = 0;
index_bits = 0;
}
else if (SVGABuffer.Depth==16) {
rgb_flag = GL_TRUE;
redscale = bluescale = alphascale = 31.0;
greenscale = 63.0;
redbits = bluebits = 5;
greenbits = 6;
alphabits = 0;
index_bits = 0;
}
ctx = (SVGAMesaContext) calloc( 1, sizeof(struct svgamesa_context) );
@ -459,18 +391,16 @@ SVGAMesaContext SVGAMesaCreateContext( GLboolean doubleBuffer )
ctx->red = ctx->green = ctx->blue = 255;
ctx->width = ctx->height = 0; /* temporary until first "make-current" */
#endif
return ctx;
}
/*
* Destroy the given VGA/Mesa context.
*/
void SVGAMesaDestroyContext( SVGAMesaContext ctx )
{
#ifndef DEV
if (ctx) {
gl_destroy_visual( ctx->gl_vis );
gl_destroy_context( ctx->gl_ctx );
@ -480,15 +410,15 @@ void SVGAMesaDestroyContext( SVGAMesaContext ctx )
SVGAMesa = NULL;
}
}
#endif
}
/*
* Make the specified VGA/Mesa context the current one.
*/
void SVGAMesaMakeCurrent( SVGAMesaContext ctx )
{
#ifndef DEV
SVGAMesa = ctx;
svgamesa_update_state( ctx->gl_ctx );
gl_make_current( ctx->gl_ctx, ctx->gl_buffer );
@ -499,10 +429,9 @@ void SVGAMesaMakeCurrent( SVGAMesaContext ctx )
ctx->height = vga_getydim();
gl_Viewport( ctx->gl_ctx, 0, 0, ctx->width, ctx->height );
}
#endif
}
/*
* Return a handle to the current VGA/Mesa context.
*/
@ -511,20 +440,38 @@ SVGAMesaContext SVGAMesaGetCurrentContext( void )
return SVGAMesa;
}
/*
* Swap front/back buffers for current context if double buffered.
*/
void SVGAMesaSwapBuffers( void )
{
void * tmpptr;
/* vga_waitretrace(); */
copy_buffer(SVGABuffer.BackBuffer);
#ifndef DEV
FLUSH_VB( SVGAMesa->gl_ctx, "swap buffers" );
if (SVGAMesa->gl_vis->DBflag) {
vga_flip();
}
if (SVGAMesa->gl_vis->DBflag)
#endif /* DEV */
{
#ifdef SVGA_DEBUG
sprintf(cbuf,"SVGAMesaSwapBuffers : Swapping...");
SVGAlog(cbuf);
#endif /* SVGA_DEBUG */
tmpptr=SVGABuffer.BackBuffer;
SVGABuffer.BackBuffer=SVGABuffer.FrontBuffer;
SVGABuffer.FrontBuffer=tmpptr;
#ifdef SVGA_DEBUG
sprintf(cbuf,"SVGAMesaSwapBuffers : WriteBuffer : %p\n"
" Readbuffer : %p", \
SVGABuffer.BackBuffer, SVGABuffer.FrontBuffer );
SVGAlog(cbuf);
#endif /* SVGA_DEBUG */
}
}
#else
#else /*SVGA*/
/*
* Need this to provide at least one external definition when SVGA is

178
src/mesa/drivers/svga/svgamesa15.c Normal file
View file

@ -0,0 +1,178 @@
/* $Id: svgamesa15.c,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#include "svgapix.h"
GLshort * shortBuffer;
int __svga_drawpixel15(int x, int y, unsigned long c)
{
unsigned long offset;
shortBuffer=(void *)SVGABuffer.BackBuffer;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->width + x;
shortBuffer[offset]=c;
return 0;
}
unsigned long __svga_getpixel15(int x, int y)
{
unsigned long offset;
shortBuffer=(void *)SVGABuffer.BackBuffer;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->width + x;
return shortBuffer[offset];
}
void __set_color15( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->hicolor=(red>>3)<<10 | (green>>3)<<5 | (blue>>3);
/* SVGAMesa->hicolor=(red)<<10 | (green)<<5 | (blue); */
}
void __clear_color15( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->clear_hicolor=(red>>3)<<10 | (green>>3)<<5 | (blue>>3);
/* SVGAMesa->clear_hicolor=(red)<<10 | (green)<<5 | (blue);*/
}
GLbitfield __clear15( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
int i,j;
if (mask & GL_COLOR_BUFFER_BIT) {
shortBuffer=(void *)SVGABuffer.BackBuffer;
if (all) {
for (i=0;i<SVGABuffer.BufferSize / 2;i++) shortBuffer[i]=SVGAMesa->clear_hicolor;
} else {
for (i=x;i<width;i++)
for (j=y;j<height;j++)
__svga_drawpixel15(i,j,SVGAMesa->clear_hicolor);
}
}
return mask & (~GL_COLOR_BUFFER_BIT);
}
void __write_rgba_span15( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, x++) {
if (mask[i]) {
__svga_drawpixel15( x, y, (rgba[i][RCOMP]>>3)<<10 | \
(rgba[i][GCOMP]>>3)<<5 | \
(rgba[i][BCOMP]>>3));
}
}
}
else {
/* draw all pixels */
for (i=0; i<n; i++, x++) {
__svga_drawpixel15( x, y, (rgba[i][RCOMP]>>3)<<10 | \
(rgba[i][GCOMP]>>3)<<5 | \
(rgba[i][BCOMP]>>3));
}
}
}
void __write_mono_rgba_span15( const GLcontext *ctx,
GLuint n, GLint x, GLint y,
const GLubyte mask[])
{
int i;
for (i=0; i<n; i++, x++) {
if (mask[i]) {
__svga_drawpixel15( x, y, SVGAMesa->hicolor);
}
}
}
void __read_rgba_span15( const GLcontext *ctx, GLuint n, GLint x, GLint y,
GLubyte rgba[][4] )
{
int i,pix;
for (i=0; i<n; i++, x++) {
pix = __svga_getpixel15( x, y);
rgba[i][RCOMP] = ((pix>>10)<<3) & 0xff;
rgba[i][GCOMP] = ((pix>> 5)<<3) & 0xff;
rgba[i][BCOMP] = ((pix )<<3) & 0xff;
}
}
void __write_rgba_pixels15( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel15( x[i], y[i], (rgba[i][RCOMP]>>3)<<10 | \
(rgba[i][GCOMP]>>3)<<5 | \
(rgba[i][BCOMP]>>3));
}
}
}
void __write_mono_rgba_pixels15( const GLcontext *ctx,
GLuint n,
const GLint x[], const GLint y[],
const GLubyte mask[] )
{
int i;
/* use current rgb color */
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel15( x[i], y[i], SVGAMesa->hicolor );
}
}
}
void __read_rgba_pixels15( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
GLubyte rgba[][4], const GLubyte mask[] )
{
int i,pix;
for (i=0; i<n; i++,x++) {
pix = __svga_getpixel15( x[i], y[i] );
rgba[i][RCOMP] = ((pix>>10)<<3) & 0xff;
rgba[i][GCOMP] = ((pix>> 5)<<3) & 0xff;
rgba[i][BCOMP] = ((pix )<<3) & 0xff;
}
}

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/* $Id: svgamesa15.h,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#ifndef SVGA_MESA_15_H
#define SVGA_MESA_15_H
extern void __set_color15( GLcontext *ctx, GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
extern void __clear_color15( GLcontext *ctx, GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
extern GLbitfield __clear15( GLcontext *ctx, GLbitfield mask, GLboolean all, GLint x, GLint y, GLint width, GLint height );
extern void __write_rgba_span15( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte rgba[][4], const GLubyte mask[] );
extern void __write_mono_rgba_span15( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte mask[]);
extern void __read_rgba_span15( const GLcontext *ctx, GLuint n, GLint x, GLint y, GLubyte rgba[][4] );
extern void __write_rgba_pixels15( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte rgba[][4], const GLubyte mask[] );
extern void __write_mono_rgba_pixels15( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte mask[] );
extern void __read_rgba_pixels15( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], GLubyte rgba[][4], const GLubyte mask[] );
#endif /* SVGA_MESA_15_H */

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/* $Id: svgamesa16.c,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#include "svgapix.h"
GLshort * shortBuffer;
int __svga_drawpixel16(int x, int y, unsigned long c)
{
unsigned long offset;
shortBuffer=(void *)SVGABuffer.BackBuffer;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->width + x;
shortBuffer[offset]=c;
return 0;
}
unsigned long __svga_getpixel16(int x, int y)
{
unsigned long offset;
shortBuffer=(void *)SVGABuffer.BackBuffer;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->width + x;
return shortBuffer[offset];
}
void __set_color16( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->hicolor=(red>>3)<<11 | (green>>2)<<5 | (blue>>3);
/* SVGAMesa->hicolor=(red)<<11 | (green)<<5 | (blue); */
}
void __clear_color16( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->clear_hicolor=(red>>3)<<11 | (green>>2)<<5 | (blue>>3);
/* SVGAMesa->clear_hicolor=(red)<<11 | (green)<<5 | (blue); */
}
GLbitfield __clear16( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
int i,j;
if (mask & GL_COLOR_BUFFER_BIT) {
if (all) {
shortBuffer=(void *)SVGABuffer.BackBuffer;
for (i=0;i<SVGABuffer.BufferSize / 2;i++) shortBuffer[i]=SVGAMesa->clear_hicolor;
} else {
for (i=x;i<width;i++)
for (j=y;j<height;j++)
__svga_drawpixel16(i,j,SVGAMesa->clear_hicolor);
}
}
return mask & (~GL_COLOR_BUFFER_BIT);
}
void __write_rgba_span16( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, x++) {
if (mask[i]) {
__svga_drawpixel16( x, y, (rgba[i][RCOMP]>>3)<<11 | \
(rgba[i][GCOMP]>>2)<<5 | \
(rgba[i][BCOMP]>>3));
}
}
}
else {
/* draw all pixels */
for (i=0; i<n; i++, x++) {
__svga_drawpixel16( x, y, (rgba[i][RCOMP]>>3)<<11 | \
(rgba[i][GCOMP]>>2)<<5 | \
(rgba[i][BCOMP]>>3));
}
}
}
void __write_mono_rgba_span16( const GLcontext *ctx,
GLuint n, GLint x, GLint y,
const GLubyte mask[])
{
int i;
for (i=0; i<n; i++, x++) {
if (mask[i]) {
__svga_drawpixel16( x, y, SVGAMesa->hicolor);
}
}
}
void __read_rgba_span16( const GLcontext *ctx, GLuint n, GLint x, GLint y,
GLubyte rgba[][4] )
{
int i,pix;
for (i=0; i<n; i++, x++) {
pix = __svga_getpixel16( x, y );
rgba[i][RCOMP] = ((pix>>11)<<3) & 0xff;
rgba[i][GCOMP] = ((pix>> 5)<<2) & 0xff;
rgba[i][BCOMP] = ((pix )<<3) & 0xff;
}
}
void __write_rgba_pixels16( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel16( x[i], y[i], (rgba[i][RCOMP]>>3)<<11 | \
(rgba[i][GCOMP]>>2)<<5 | \
(rgba[i][BCOMP]>>3));
}
}
}
void __write_mono_rgba_pixels16( const GLcontext *ctx,
GLuint n,
const GLint x[], const GLint y[],
const GLubyte mask[] )
{
int i;
/* use current rgb color */
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel16( x[i], y[i], SVGAMesa->hicolor );
}
}
}
void __read_rgba_pixels16( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
GLubyte rgba[][4], const GLubyte mask[] )
{
int i,pix;
for (i=0; i<n; i++,x++) {
pix = __svga_getpixel16( x[i], y[i] );
rgba[i][RCOMP] = ((pix>>11)<<3) & 0xff;
rgba[i][GCOMP] = ((pix>> 5)<<2) & 0xff;
rgba[i][BCOMP] = ((pix )<<3) & 0xff;
}
}

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/* $Id: svgamesa16.h,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#ifndef SVGA_MESA_16_H
#define SVGA_MESA_16_H
extern void __set_color16( GLcontext *ctx, GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
extern void __clear_color16( GLcontext *ctx, GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
extern GLbitfield __clear16( GLcontext *ctx, GLbitfield mask, GLboolean all, GLint x, GLint y, GLint width, GLint height );
extern void __write_rgba_span16( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte rgba[][4], const GLubyte mask[] );
extern void __write_mono_rgba_span16( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte mask[]);
extern void __read_rgba_span16( const GLcontext *ctx, GLuint n, GLint x, GLint y, GLubyte rgba[][4] );
extern void __write_rgba_pixels16( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte rgba[][4], const GLubyte mask[] );
extern void __write_mono_rgba_pixels16( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte mask[] );
extern void __read_rgba_pixels16( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], GLubyte rgba[][4], const GLubyte mask[] );
#endif /* SVGA_MESA_16_H */

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/* $Id: svgamesa24.c,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#include "svgapix.h"
_RGB * rgbBuffer;
inline int RGB2BGR24(int c)
{
asm("rorw $8, %0\n"
"rorl $16, %0\n"
"rorw $8, %0\n"
"shrl $8, %0\n"
: "=q"(c):"0"(c));
return c;
}
int __svga_drawpixel24(int x, int y, GLubyte r, GLubyte g, GLubyte b)
{
unsigned long offset;
rgbBuffer=(void *)SVGABuffer.BackBuffer;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->width + x;
rgbBuffer[offset].r=r;
rgbBuffer[offset].g=g;
rgbBuffer[offset].b=b;
return 0;
}
unsigned long __svga_getpixel24(int x, int y)
{
unsigned long offset;
rgbBuffer=(void *)SVGABuffer.BackBuffer;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->width + x;
return rgbBuffer[offset].r<<16 | rgbBuffer[offset].g<<8 | rgbBuffer[offset].b;
}
void __set_color24( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->red = red;
SVGAMesa->green = green;
SVGAMesa->blue = blue;
/* SVGAMesa->truecolor = red<<16 | green<<8 | blue; */
}
void __clear_color24( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->clear_red = red;
SVGAMesa->clear_green = green;
SVGAMesa->clear_blue = blue;
/* SVGAMesa->clear_truecolor = red<<16 | green<<8 | blue; */
}
GLbitfield __clear24( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
int i,j;
if (mask & GL_COLOR_BUFFER_BIT) {
if (all) {
rgbBuffer=(void *)SVGABuffer.BackBuffer;
for (i=0;i<SVGABuffer.BufferSize / 3;i++)
{
rgbBuffer[i].r=SVGAMesa->clear_red;
rgbBuffer[i].g=SVGAMesa->clear_green;
rgbBuffer[i].b=SVGAMesa->clear_blue;
}
} else {
for (i=x;i<width;i++)
for (j=y;j<height;j++)
__svga_drawpixel24( i, j, SVGAMesa->clear_red,
SVGAMesa->clear_green,
SVGAMesa->clear_blue);
}
}
return mask & (~GL_COLOR_BUFFER_BIT);
}
void __write_rgba_span24( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, x++) {
if (mask[i]) {
__svga_drawpixel24( x, y, rgba[i][RCOMP],
rgba[i][GCOMP],
rgba[i][BCOMP]);
}
}
}
else {
/* draw all pixels */
for (i=0; i<n; i++, x++) {
__svga_drawpixel24( x, y, rgba[i][RCOMP],
rgba[i][GCOMP],
rgba[i][BCOMP]);
}
}
}
void __write_mono_rgba_span24( const GLcontext *ctx,
GLuint n, GLint x, GLint y,
const GLubyte mask[])
{
int i;
for (i=0; i<n; i++, x++) {
if (mask[i]) {
__svga_drawpixel24( x, y, SVGAMesa->red,
SVGAMesa->green,
SVGAMesa->blue);
}
}
}
void __read_rgba_span24( const GLcontext *ctx, GLuint n, GLint x, GLint y,
GLubyte rgba[][4] )
{
int i;
for (i=0; i<n; i++, x++) {
*((GLint*)rgba[i]) = RGB2BGR24(__svga_getpixel24( x, y));
}
}
void __write_rgba_pixels24( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel24( x[i], y[i], rgba[i][RCOMP],
rgba[i][GCOMP],
rgba[i][BCOMP]);
}
}
}
void __write_mono_rgba_pixels24( const GLcontext *ctx,
GLuint n,
const GLint x[], const GLint y[],
const GLubyte mask[] )
{
int i;
/* use current rgb color */
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel24( x[i], y[i], SVGAMesa->red,
SVGAMesa->green,
SVGAMesa->blue);
}
}
}
void __read_rgba_pixels24( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++,x++) {
*((GLint*)rgba[i]) = RGB2BGR24(__svga_getpixel24( x[i], y[i]));
}
}

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/* $Id: svgamesa24.h,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#ifndef SVGA_MESA_24_H
#define SVGA_MESA_24_H
extern void __set_color24( GLcontext *ctx, GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
extern void __clear_color24( GLcontext *ctx, GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
extern GLbitfield __clear24( GLcontext *ctx, GLbitfield mask, GLboolean all, GLint x, GLint y, GLint width, GLint height );
extern void __write_rgba_span24( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte rgba[][4], const GLubyte mask[] );
extern void __write_mono_rgba_span24( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte mask[]);
extern void __read_rgba_span24( const GLcontext *ctx, GLuint n, GLint x, GLint y, GLubyte rgba[][4] );
extern void __write_rgba_pixels24( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte rgba[][4], const GLubyte mask[] );
extern void __write_mono_rgba_pixels24( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte mask[] );
extern void __read_rgba_pixels24( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], GLubyte rgba[][4], const GLubyte mask[] );
#endif /* SVGA_MESA_24_H */

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/* $Id: svgamesa32.c,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#include "svgapix.h"
GLint * intBuffer;
inline int RGB2BGR32(int c)
{
asm("rorw $8, %0\n"
"rorl $16, %0\n"
"rorw $8, %0\n"
"shrl $8, %0\n"
: "=q"(c):"0"(c));
return c;
}
int __svga_drawpixel32(int x, int y, unsigned long c)
{
unsigned long offset;
intBuffer=(void *)SVGABuffer.BackBuffer;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->width + x;
intBuffer[offset]=c;
return 0;
}
unsigned long __svga_getpixel32(int x, int y)
{
unsigned long offset;
intBuffer=(void *)SVGABuffer.BackBuffer;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->width + x;
return intBuffer[offset];
}
void __set_color32( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->red = red;
SVGAMesa->green = green;
SVGAMesa->blue = blue;
SVGAMesa->truecolor = red<<16 | green<<8 | blue;
}
void __clear_color32( GLcontext *ctx,
GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha )
{
SVGAMesa->clear_truecolor = red<<16 | green<<8 | blue;
}
GLbitfield __clear32( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
int i,j;
if (mask & GL_COLOR_BUFFER_BIT) {
if (all) {
intBuffer=(void *)SVGABuffer.BackBuffer;
for (i=0;i<SVGABuffer.BufferSize / 4;i++) intBuffer[i]=SVGAMesa->clear_truecolor;
} else {
for (i=x;i<width;i++)
for (j=y;j<height;j++)
__svga_drawpixel32(i,j,SVGAMesa->clear_truecolor);
}
}
return mask & (~GL_COLOR_BUFFER_BIT);
}
void __write_rgba_span32( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
if (mask) {
/* draw some pixels */
for (i=0; i<n; i++, x++) {
if (mask[i]) {
__svga_drawpixel32( x, y, RGB2BGR32(*((GLint*)rgba[i])));
}
}
}
else {
/* draw all pixels */
for (i=0; i<n; i++, x++) {
__svga_drawpixel32( x, y, RGB2BGR32(*((GLint*)rgba[i])));
}
}
}
void __write_mono_rgba_span32( const GLcontext *ctx,
GLuint n, GLint x, GLint y,
const GLubyte mask[])
{
int i;
for (i=0; i<n; i++, x++) {
if (mask[i]) {
__svga_drawpixel32( x, y, SVGAMesa->truecolor);
}
}
}
void __read_rgba_span32( const GLcontext *ctx, GLuint n, GLint x, GLint y,
GLubyte rgba[][4] )
{
int i;
for (i=0; i<n; i++, x++) {
*((GLint*)rgba[i]) = RGB2BGR32(__svga_getpixel32( x, y ));
}
}
void __write_rgba_pixels32( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel32( x[i], y[i], RGB2BGR32(*((GLint*)rgba[i])));
}
}
}
void __write_mono_rgba_pixels32( const GLcontext *ctx,
GLuint n,
const GLint x[], const GLint y[],
const GLubyte mask[] )
{
int i;
/* use current rgb color */
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel32( x[i], y[i], SVGAMesa->truecolor );
}
}
}
void __read_rgba_pixels32( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
GLubyte rgba[][4], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++,x++) {
*((GLint*)rgba[i]) = RGB2BGR32(__svga_getpixel32( x[i], y[i] ));
}
}

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/* $Id: svgamesa32.h,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#ifndef SVGA_MESA_32_H
#define SVGA_MESA_32_H
extern void __set_color32( GLcontext *ctx, GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
extern void __clear_color32( GLcontext *ctx, GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
extern GLbitfield __clear32( GLcontext *ctx, GLbitfield mask, GLboolean all, GLint x, GLint y, GLint width, GLint height );
extern void __write_rgba_span32( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte rgba[][4], const GLubyte mask[] );
extern void __write_mono_rgba_span32( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte mask[]);
extern void __read_rgba_span32( const GLcontext *ctx, GLuint n, GLint x, GLint y, GLubyte rgba[][4] );
extern void __write_rgba_pixels32( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte rgba[][4], const GLubyte mask[] );
extern void __write_mono_rgba_pixels32( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte mask[] );
extern void __read_rgba_pixels32( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], GLubyte rgba[][4], const GLubyte mask[] );
#endif /* SVGA_MESA_32_H */

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/* $Id: svgamesa8.c,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#include "svgapix.h"
int __svga_drawpixel8(int x, int y, unsigned long c)
{
unsigned long offset;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->linewidth + x;
SVGABuffer.BackBuffer[offset]=c;
return 0;
}
unsigned long __svga_getpixel8(int x, int y)
{
unsigned long offset;
y = SVGAInfo->height-y-1;
offset = y * SVGAInfo->linewidth + x;
return SVGABuffer.BackBuffer[offset];
}
void __set_index8( GLcontext *ctx, GLuint index )
{
SVGAMesa->index = index;
}
void __clear_index8( GLcontext *ctx, GLuint index )
{
SVGAMesa->clear_index = index;
}
GLbitfield __clear8( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
int i,j;
if (mask & GL_COLOR_BUFFER_BIT) {
if (all)
{
memset(SVGABuffer.BackBuffer,SVGAMesa->clear_index,SVGABuffer.BufferSize);
} else {
for (i=x;i<width;i++)
for (j=y;j<height;j++)
__svga_drawpixel8(i,j,SVGAMesa->clear_index);
}
}
return mask & (~GL_COLOR_BUFFER_BIT);
}
void __write_ci32_span8( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLuint index[], const GLubyte mask[] )
{
int i;
for (i=0;i<n;i++,x++) {
if (mask[i]) {
__svga_drawpixel8( x, y, index[i]);
}
}
}
void __write_ci8_span8( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte index[], const GLubyte mask[] )
{
int i;
for (i=0;i<n;i++,x++) {
if (mask[i]) {
__svga_drawpixel8( x, y, index[i]);
}
}
}
void __write_mono_ci_span8( const GLcontext *ctx, GLuint n,
GLint x, GLint y, const GLubyte mask[] )
{
int i;
for (i=0;i<n;i++,x++) {
if (mask[i]) {
__svga_drawpixel8( x, y, SVGAMesa->index);
}
}
}
void __read_ci32_span8( const GLcontext *ctx,
GLuint n, GLint x, GLint y, GLuint index[])
{
int i;
for (i=0; i<n; i++,x++) {
index[i] = __svga_getpixel8( x, y);
}
}
void __write_ci32_pixels8( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLuint index[], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel8( x[i], y[i], index[i]);
}
}
}
void __write_mono_ci_pixels8( const GLcontext *ctx, GLuint n,
const GLint x[], const GLint y[],
const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++) {
if (mask[i]) {
__svga_drawpixel8( x[i], y[i], SVGAMesa->index);
}
}
}
void __read_ci32_pixels8( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
GLuint index[], const GLubyte mask[] )
{
int i;
for (i=0; i<n; i++,x++) {
index[i] = __svga_getpixel8( x[i], y[i]);
}
}

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/* $Id: svgamesa8.h,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#ifndef SVGA_MESA_8_H
#define SVGA_MESA_8_H
extern void __set_index8( GLcontext *ctx, GLuint index );
extern void __clear_index8( GLcontext *ctx, GLuint index );
extern GLbitfield __clear8( GLcontext *ctx, GLbitfield mask, GLboolean all, GLint x, GLint y, GLint width, GLint height );
extern void __write_ci32_span8( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLuint index[], const GLubyte mask[] );
extern void __write_ci8_span8( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte index[], const GLubyte mask[] );
extern void __write_mono_ci_span8( const GLcontext *ctx, GLuint n, GLint x, GLint y, const GLubyte mask[] );
extern void __read_ci32_span8( const GLcontext *ctx, GLuint n, GLint x, GLint y, GLuint index[]);
extern void __write_ci32_pixels8( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLuint index[], const GLubyte mask[] );
extern void __write_mono_ci_pixels8( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte mask[] );
extern void __read_ci32_pixels8( const GLcontext *ctx, GLuint n, const GLint x[], const GLint y[], GLuint index[], const GLubyte mask[] );
#endif /* SVGA_MESA_15_H */

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/* $Id: svgapix.h,v 1.2 2000/01/22 20:08:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.2
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* SVGA driver for Mesa.
* Original author: Brian Paul
* Additional authors: Slawomir Szczyrba <steev@hot.pl> (Mesa 3.2)
*/
#ifndef SVGAPIX_H
#define SVGAPIX_H
#include "GL/gl.h"
#include "GL/svgamesa.h"
#include "context.h"
#include "vga.h"
struct svgamesa_context {
GLcontext *gl_ctx; /* the core Mesa context */
GLvisual *gl_vis; /* describes the color buffer */
GLframebuffer *gl_buffer; /* the ancillary buffers */
GLuint index; /* current color index */
GLuint clear_index; /* current clear index */
GLint red, green, blue; /* current rgb color */
GLuint truecolor; /* current rgb color */
GLint clear_red,
clear_green,
clear_blue; /* current clear rgb color */
GLuint clear_truecolor; /* current clear rgb color */
GLushort hicolor; /* current hicolor */
GLushort clear_hicolor; /* current clear hicolor */
GLint width, height; /* size of color buffer */
GLint depth; /* bits per pixel (8,16,24 or 32) */
};
typedef struct { GLubyte b,g,r; } _RGB;
struct svga_buffer {
GLint Depth;
GLint BufferSize;
GLubyte * FrontBuffer;
GLubyte * BackBuffer;
GLubyte * VideoRam;
};
extern struct svga_buffer SVGABuffer;
extern vga_modeinfo * SVGAInfo;
extern SVGAMesaContext SVGAMesa; /* the current context */
#endif /* SVGAPIX_H */