-/* $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
*/
-
/*
- * 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
#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) */
-};
-
-
-static SVGAMesaContext SVGAMesa = NULL; /* the current context */
-
-
-
-/*
- * Convert Mesa window Y coordinate to VGA screen Y coordinate:
- */
-#define FLIP(Y) (SVGAMesa->height-(Y)-1)
-
-
-
-/**********************************************************************/
-/***** Miscellaneous functions *****/
-/**********************************************************************/
-
-
-static void get_buffer_size( GLcontext *ctx, GLuint *width, GLuint *height )
-{
- *width = SVGAMesa->width = vga_getxdim();
- *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 );
-}
+struct svga_buffer SVGABuffer;
+vga_modeinfo * SVGAInfo;
+SVGAMesaContext SVGAMesa; /* the current context */
+#ifdef SVGA_DEBUG
-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);
-}
+#include <sys/types.h>
+#include <signal.h>
+FILE * logfile;
+char cbuf[1024]={0};
-static GLboolean set_buffer( GLcontext *ctx, GLenum buffer )
+void SVGAlog(char * what)
{
- /* TODO: implement double buffering and use this function to select */
- /* between front and back buffers. */
- if (buffer == GL_FRONT_LEFT)
- return GL_TRUE;
- else if (buffer == GL_BACK_LEFT)
- return GL_TRUE;
- else
- return GL_FALSE;
-}
-
-
-
+ logfile=fopen("svgamesa.log","a");
+ if (!logfile) return;
+ fprintf(logfile,"%s\n",what);
+ fclose(logfile);
+}
+#endif
/**********************************************************************/
-/***** Write spans of pixels *****/
+/***** Init stuff... *****/
/**********************************************************************/
-
-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 );
- }
+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);
}
-}
-
-
-
-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 );
- }
- }
+ 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);
}
- 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 );
- }
+ 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);
}
-}
-
-
-
-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 );
+ 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;
}
-
-
-static void read_rgba_span( const GLcontext *ctx, GLuint n, GLint x, GLint y,
- GLubyte rgba[][4] )
+void SVGAMesaSetCI(int ndx, GLubyte red, GLubyte green, GLubyte blue)
{
- int i;
- for (i=0; i<n; i++, x++) {
- /* TODO */
- }
+ if (ndx<256) vga_setpalette(ndx, red>>2, green>>2, blue>>2);
}
-
-
/**********************************************************************/
-/***** Write arrays of pixels *****/
+/***** Miscellaneous functions *****/
/**********************************************************************/
-
-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 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 write_rgba_pixels( const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte rgba[][4], const GLubyte mask[] )
+static void get_buffer_size( GLcontext *ctx, GLuint *width, GLuint *height )
{
- 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]) );
- }
- }
+ *width = SVGAMesa->width = vga_getxdim();
+ *height = SVGAMesa->height = vga_getydim();
}
-
-
-static void write_mono_rgba_pixels( const GLcontext *ctx,
- GLuint n,
- const GLint x[], const GLint y[],
- const GLubyte mask[] )
+static GLboolean set_buffer( GLcontext *ctx, GLenum buffer )
{
- 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]) );
- }
- }
+ void * tmpptr;
+
+ if (buffer == GL_FRONT_LEFT)
+ {
+/* 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)
+ {
+/* vga_waitretrace(); */
+ copy_buffer(SVGABuffer.BackBuffer);
+ return GL_TRUE;
+ }
+ else
+ return GL_FALSE;
}
-
-
-
/**********************************************************************/
-/***** 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 */
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;
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;
-
- /* 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;
+ switch (SVGABuffer.Depth) {
+ case 8: ctx->Driver.ClearIndex = __clear_index8;
+ ctx->Driver.Clear = __clear8;
+ ctx->Driver.Index = __set_index8;
+
+ 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) );
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 );
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 );
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.
*/
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
--- /dev/null
+/* $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;
+ }
+}
--- /dev/null
+/* $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 */
--- /dev/null
+/* $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;
+ }
+}
--- /dev/null
+/* $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 */
+
--- /dev/null
+/* $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]));
+ }
+}
--- /dev/null
+/* $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 */
+
--- /dev/null
+/* $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] ));
+ }
+}
--- /dev/null
+/* $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 */
+
--- /dev/null
+/* $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]);
+ }
+}
+
--- /dev/null
+/* $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 */
--- /dev/null
+/* $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 */
projects / mesa.git / commitdiff