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Diffstat (limited to 'src/mesa/drivers/svga/svgamesa.c')
-rw-r--r--src/mesa/drivers/svga/svgamesa.c516
1 files changed, 0 insertions, 516 deletions
diff --git a/src/mesa/drivers/svga/svgamesa.c b/src/mesa/drivers/svga/svgamesa.c
deleted file mode 100644
index 5afa8e188b..0000000000
--- a/src/mesa/drivers/svga/svgamesa.c
+++ /dev/null
@@ -1,516 +0,0 @@
-
-/*
- * Mesa 3-D graphics library
- * Version: 5.0
- * Copyright (C) 1995-2002 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)
- */
-
-
-#ifdef HAVE_CONFIG_H
-#include "conf.h"
-#endif
-
-#ifdef SVGA
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <vga.h>
-#include "GL/svgamesa.h"
-#include "main/buffers.h"
-#include "main/context.h"
-#include "main/extensions.h"
-#include "main/imports.h"
-#include "main/matrix.h"
-#include "main/mtypes.h"
-#include "swrast/swrast.h"
-#include "svgapix.h"
-#include "svgamesa8.h"
-#include "svgamesa15.h"
-#include "svgamesa16.h"
-#include "svgamesa24.h"
-#include "svgamesa32.h"
-
-struct svga_buffer SVGABuffer;
-vga_modeinfo * SVGAInfo;
-SVGAMesaContext SVGAMesa; /* the current context */
-
-#ifdef SVGA_DEBUG
-
-#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
-
-/**********************************************************************/
-/***** 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
-
- SVGABuffer.DrawBuffer = SVGABuffer.BackBuffer;
- SVGABuffer.ReadBuffer = SVGABuffer.BackBuffer;
-
- 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( const 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( GLframebuffer *buffer, GLuint *width, GLuint *height )
-{
- *width = SVGAMesa->width = vga_getxdim();
- *height = SVGAMesa->height = vga_getydim();
-}
-
-/**
- * We only implement this function as a mechanism to check if the
- * framebuffer size has changed (and update corresponding state).
- */
-static void viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
-{
- GLuint newWidth, newHeight;
- GLframebuffer *buffer = ctx->WinSysDrawBuffer;
- get_buffer_size( buffer, &newWidth, &newHeight );
- if (buffer->Width != newWidth || buffer->Height != newHeight) {
- _mesa_resize_framebuffer(ctx, buffer, newWidth, newHeight );
- }
-}
-
-static void set_buffer( GLcontext *ctx, GLframebuffer *colorBuffer,
- GLenum buffer )
-{
- /* We can ignore colorBuffer since we don't support a MakeCurrentRead()
- * function.
- */
- (void) colorBuffer;
-
- if (buffer == GL_FRONT_LEFT) {
- SVGABuffer.ReadBuffer = SVGABuffer.FrontBuffer;
- SVGABuffer.DrawBuffer = SVGABuffer.FrontBuffer;
-#if 0
- void * tmpptr;
- /* vga_waitretrace(); */
- copy_buffer(SVGABuffer.FrontBuffer);
- tmpptr=SVGABuffer.BackBuffer;
- SVGABuffer.BackBuffer=SVGABuffer.FrontBuffer;
- SVGABuffer.FrontBuffer=tmpptr;
-#endif
- }
- else if (buffer == GL_BACK_LEFT) {
- SVGABuffer.ReadBuffer = SVGABuffer.BackBuffer;
- SVGABuffer.DrawBuffer = SVGABuffer.BackBuffer;
-#if 0
- /* vga_waitretrace(); */
- copy_buffer(SVGABuffer.BackBuffer);
-#endif
- }
-}
-
-/**********************************************************************/
-/***** *****/
-/**********************************************************************/
-
-static void svgamesa_update_state( GLcontext *ctx, GLuint new_state )
-{
- struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference( ctx );
-
- /* Initialize all the pointers in the DD struct. Do this whenever */
- /* a new context is made current or we change buffers via set_buffer! */
-
- ctx->Driver.UpdateState = svgamesa_update_state;
-
- ctx->Driver.GetBufferSize = get_buffer_size;
- ctx->Driver.Viewport = viewport;
-
- /* Fill in the swrast driver interface:
- */
- swdd->SetBuffer = set_buffer;
-
- switch (SVGABuffer.Depth) {
- case 8: ctx->Driver.ClearIndex = __clear_index8;
- ctx->Driver.Clear = __clear8;
-
- swdd->ReadCI32Span = __read_ci32_span8;
- swdd->ReadCI32Pixels = __read_ci32_pixels8;
- swdd->WriteCI8Span = __write_ci8_span8;
- swdd->WriteCI32Span = __write_ci32_span8;
- swdd->WriteCI32Pixels = __write_ci32_pixels8;
- swdd->WriteMonoCISpan = __write_mono_ci_span8;
- swdd->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;
-
- swdd->ReadRGBASpan = __read_rgba_span15;
- swdd->ReadRGBAPixels = __read_rgba_pixels15;
- swdd->WriteRGBASpan = __write_rgba_span15;
- swdd->WriteRGBAPixels = __write_rgba_pixels15;
- swdd->WriteMonoRGBASpan = __write_mono_rgba_span15;
- swdd->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;
-
- swdd->ReadRGBASpan = __read_rgba_span16;
- swdd->ReadRGBAPixels = __read_rgba_pixels16;
- swdd->WriteRGBASpan = __write_rgba_span16;
- swdd->WriteRGBAPixels = __write_rgba_pixels16;
- swdd->WriteMonoRGBASpan = __write_mono_rgba_span16;
- swdd->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;
-
- swdd->ReadRGBASpan = __read_rgba_span24;
- swdd->ReadRGBAPixels = __read_rgba_pixels24;
- swdd->WriteRGBASpan = __write_rgba_span24;
- swdd->WriteRGBAPixels = __write_rgba_pixels24;
- swdd->WriteMonoRGBASpan = __write_mono_rgba_span24;
- swdd->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;
-
- swdd->ReadRGBASpan = __read_rgba_span32;
- swdd->ReadRGBAPixels = __read_rgba_pixels32;
- swdd->WriteRGBASpan = __write_rgba_span32;
- swdd->WriteRGBAPixels = __write_rgba_pixels32;
- swdd->WriteMonoRGBASpan = __write_mono_rgba_span32;
- swdd->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;
- GLint index_bits;
- GLint redbits, greenbits, bluebits, alphabits;
-
- /* determine if we're in RGB or color index mode */
- 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 (SVGABuffer.Depth==8) {
- rgb_flag = GL_FALSE;
- redscale = greenscale = bluescale = alphascale = 0.0;
- redbits = greenbits = bluebits = alphabits = 0;
- index_bits = 8;
- }
- 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) );
- if (!ctx) {
- return NULL;
- }
-
- ctx->gl_vis = _mesa_create_visual( rgb_flag,
- doubleBuffer,
- GL_FALSE, /* stereo */
- redbits, greenbits,
- bluebits, alphabits,
- index_bits,
- 16, /* depth_size */
- 8, /* stencil_size */
- 16, 16, 16, 16, /* accum_size */
- 1 /* samples */
- );
-
- ctx->gl_ctx = _mesa_create_context( ctx->gl_vis,
- NULL, /* share list context */
- (void *) ctx, GL_FALSE );
-
- _mesa_enable_sw_extensions(ctx->gl_ctx);
- _mesa_enable_1_3_extensions(ctx->gl_ctx);
-
- _mesa_init_driver_functions(&ctx->Driver);
-
- ctx->gl_buffer = _mesa_create_framebuffer( ctx->gl_vis,
- ctx->gl_vis->depthBits > 0,
- ctx->gl_vis->stencilBits > 0,
- ctx->gl_vis->accumRedBits > 0,
- ctx->gl_vis->alphaBits > 0 );
-
- 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) {
- _mesa_destroy_visual( ctx->gl_vis );
- _mesa_destroy_context( ctx->gl_ctx );
- free( ctx );
- if (ctx==SVGAMesa) {
- 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, ~0 );
- _mesa_make_current( ctx->gl_ctx, ctx->gl_buffer );
-
- if (ctx->width==0 || ctx->height==0) {
- ctx->width = vga_getxdim();
- ctx->height = vga_getydim();
- }
-#endif
-}
-
-/*
- * Return a handle to the current VGA/Mesa context.
- */
-SVGAMesaContext SVGAMesaGetCurrentContext( void )
-{
- return SVGAMesa;
-}
-
-/*
- * Swap front/back buffers for current context if double buffered.
- */
-void SVGAMesaSwapBuffers( void )
-{
-#if 000
- void * tmpptr;
-#endif
-
- /* vga_waitretrace(); */
- copy_buffer(SVGABuffer.BackBuffer);
-
-#ifndef DEV
- _mesa_notifySwapBuffers( SVGAMesa->gl_ctx );
- if (SVGAMesa->gl_vis->doubleBufferMode)
-#endif /* DEV */
- {
-#ifdef SVGA_DEBUG
- sprintf(cbuf,"SVGAMesaSwapBuffers : Swapping...");
- SVGAlog(cbuf);
-#endif /* SVGA_DEBUG */
-#if 000
- tmpptr=SVGABuffer.BackBuffer;
- SVGABuffer.BackBuffer=SVGABuffer.FrontBuffer;
- SVGABuffer.FrontBuffer=tmpptr;
-#endif
-#ifdef SVGA_DEBUG
- sprintf(cbuf,"SVGAMesaSwapBuffers : WriteBuffer : %p\n"
- " Readbuffer : %p", \
- SVGABuffer.BackBuffer, SVGABuffer.FrontBuffer );
- SVGAlog(cbuf);
-#endif /* SVGA_DEBUG */
- }
-}
-
-#else /*SVGA*/
-
-/*
- * Need this to provide at least one external definition when SVGA is
- * not defined on the compiler command line.
- */
-extern int gl_svga_dummy_function(void);
-int gl_svga_dummy_function(void)
-{
- return 0;
-}
-
-#endif /*SVGA*/
-
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