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authorBrian Paul <[email protected]>2000-01-25 00:03:01 +0000
committerBrian Paul <[email protected]>2000-01-25 00:03:01 +0000
commitebd5feab9af92ff08c2b9280e6dfa1a44a7d1c22 (patch)
treea81939c5c81d4dd5c97ba77cc14d209f3f088911 /src/mesa/drivers/svga/svgamesa.c
parent2454429915c05c69a86804817c95cc5b634699af (diff)
updated for Mesa 3.3
Diffstat (limited to 'src/mesa/drivers/svga/svgamesa.c')
-rw-r--r--src/mesa/drivers/svga/svgamesa.c130
1 files changed, 88 insertions, 42 deletions
diff --git a/src/mesa/drivers/svga/svgamesa.c b/src/mesa/drivers/svga/svgamesa.c
index 4e726fa48d3..f7175fe63e8 100644
--- a/src/mesa/drivers/svga/svgamesa.c
+++ b/src/mesa/drivers/svga/svgamesa.c
@@ -1,8 +1,8 @@
-/* $Id: svgamesa.c,v 1.3 2000/01/23 17:49:54 brianp Exp $ */
+/* $Id: svgamesa.c,v 1.4 2000/01/25 00:03:02 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.2
+ * Version: 3.3
* Copyright (C) 1995-2000 Brian Paul
*
* This library is free software; you can redistribute it and/or
@@ -162,28 +162,33 @@ int SVGAMesaInit( int GraphMode )
SVGAlog(cbuf);
sprintf(cbuf,"SVGAMesaInit: done. (Mode %d)",GraphMode);
SVGAlog(cbuf);
-#endif
+#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;
+ 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);
+ if (ndx<256)
+ vga_setpalette(ndx, red>>2, green>>2, blue>>2);
}
/**********************************************************************/
/***** Miscellaneous functions *****/
/**********************************************************************/
-static void copy_buffer( GLubyte * buffer) {
+static void copy_buffer( const GLubyte * buffer) {
int size = SVGABuffer.BufferSize, page = 0;
#ifdef SVGA_DEBUG
@@ -209,29 +214,61 @@ static void get_buffer_size( GLcontext *ctx, GLuint *width, GLuint *height )
*height = SVGAMesa->height = vga_getydim();
}
-static GLboolean set_buffer( GLcontext *ctx, GLenum buffer )
+static GLboolean set_draw_buffer( GLcontext *ctx, GLenum buffer )
{
- 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;
+ if (buffer == GL_FRONT_LEFT) {
+ SVGABuffer.DrawBuffer = SVGABuffer.FrontBuffer;
+#if 0
+ /* vga_waitretrace(); */
+ void * tmpptr;
+ copy_buffer(SVGABuffer.FrontBuffer);
+ tmpptr=SVGABuffer.BackBuffer;
+ SVGABuffer.BackBuffer=SVGABuffer.FrontBuffer;
+ SVGABuffer.FrontBuffer=tmpptr;
+#endif
+ return GL_TRUE;
}
+ else if (buffer == GL_BACK_LEFT) {
+ SVGABuffer.DrawBuffer = SVGABuffer.BackBuffer;
+#if 0
+ /* vga_waitretrace(); */
+ copy_buffer(SVGABuffer.BackBuffer);
+#endif
+ return GL_TRUE;
+ }
else
return GL_FALSE;
}
+
+static void set_read_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;
+#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;
+#if 0
+ /* vga_waitretrace(); */
+ copy_buffer(SVGABuffer.BackBuffer);
+#endif
+ }
+}
+
/**********************************************************************/
/***** *****/
/**********************************************************************/
@@ -243,8 +280,9 @@ static void svgamesa_update_state( GLcontext *ctx )
ctx->Driver.UpdateState = svgamesa_update_state;
- ctx->Driver.SetBuffer = set_buffer;
ctx->Driver.GetBufferSize = get_buffer_size;
+ ctx->Driver.SetDrawBuffer = set_draw_buffer;
+ ctx->Driver.SetReadBuffer = set_read_buffer;
ctx->Driver.PointsFunc = NULL;
ctx->Driver.LineFunc = NULL;
@@ -385,7 +423,11 @@ SVGAMesaContext SVGAMesaCreateContext( GLboolean doubleBuffer )
NULL, /* share list context */
(void *) ctx, GL_TRUE );
- ctx->gl_buffer = gl_create_framebuffer( ctx->gl_vis );
+ ctx->gl_buffer = gl_create_framebuffer( ctx->gl_vis,
+ ctx->gl_vis->DepthBits > 0,
+ ctx->gl_vis->StencilBits > 0,
+ ctx->gl_vis->AccumBits > 0,
+ ctx->gl_vis->AlphaBits > 0 );
ctx->index = 1;
ctx->red = ctx->green = ctx->blue = 255;
@@ -445,10 +487,12 @@ SVGAMesaContext SVGAMesaGetCurrentContext( void )
*/
void SVGAMesaSwapBuffers( void )
{
- void * tmpptr;
-
-/* vga_waitretrace(); */
- copy_buffer(SVGABuffer.BackBuffer);
+#if 000
+ void * tmpptr;
+#endif
+
+ /* vga_waitretrace(); */
+ copy_buffer(SVGABuffer.BackBuffer);
#ifndef DEV
FLUSH_VB( SVGAMesa->gl_ctx, "swap buffers" );
@@ -456,19 +500,21 @@ void SVGAMesaSwapBuffers( void )
#endif /* DEV */
{
#ifdef SVGA_DEBUG
- sprintf(cbuf,"SVGAMesaSwapBuffers : Swapping...");
- SVGAlog(cbuf);
+ sprintf(cbuf,"SVGAMesaSwapBuffers : Swapping...");
+ SVGAlog(cbuf);
#endif /* SVGA_DEBUG */
- tmpptr=SVGABuffer.BackBuffer;
- SVGABuffer.BackBuffer=SVGABuffer.FrontBuffer;
- SVGABuffer.FrontBuffer=tmpptr;
+#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);
+ sprintf(cbuf,"SVGAMesaSwapBuffers : WriteBuffer : %p\n"
+ " Readbuffer : %p", \
+ SVGABuffer.BackBuffer, SVGABuffer.FrontBuffer );
+ SVGAlog(cbuf);
#endif /* SVGA_DEBUG */
- }
+ }
}
#else /*SVGA*/