-/* $Id: xm_dd.c,v 1.20 2001/04/03 16:19:54 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 6.3
*
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#include "glxheader.h"
+#include "bufferobj.h"
+#include "buffers.h"
#include "context.h"
+#include "colormac.h"
#include "depth.h"
#include "drawpix.h"
#include "extensions.h"
#include "macros.h"
-#include "mem.h"
+#include "image.h"
+#include "imports.h"
#include "mtypes.h"
#include "state.h"
+#include "texobj.h"
+#include "teximage.h"
#include "texstore.h"
+#include "texformat.h"
#include "xmesaP.h"
#include "array_cache/acache.h"
#include "swrast/swrast.h"
+#include "swrast/s_auxbuffer.h"
+#include "swrast/s_context.h"
#include "swrast/s_alphabuf.h"
#include "swrast_setup/swrast_setup.h"
#include "tnl/tnl.h"
#include "tnl/t_context.h"
+#ifdef XFree86Server
+#include <GL/glxtokens.h>
+#endif
+
+
+
+/*
+ * Dithering kernels and lookup tables.
+ */
+
+const int xmesa_kernel8[DITH_DY * DITH_DX] = {
+ 0 * MAXC, 8 * MAXC, 2 * MAXC, 10 * MAXC,
+ 12 * MAXC, 4 * MAXC, 14 * MAXC, 6 * MAXC,
+ 3 * MAXC, 11 * MAXC, 1 * MAXC, 9 * MAXC,
+ 15 * MAXC, 7 * MAXC, 13 * MAXC, 5 * MAXC,
+};
+
+const short xmesa_HPCR_DRGB[3][2][16] = {
+ {
+ { 16, -4, 1,-11, 14, -6, 3, -9, 15, -5, 2,-10, 13, -7, 4, -8},
+ {-15, 5, 0, 12,-13, 7, -2, 10,-14, 6, -1, 11,-12, 8, -3, 9}
+ },
+ {
+ {-11, 15, -7, 3, -8, 14, -4, 2,-10, 16, -6, 4, -9, 13, -5, 1},
+ { 12,-14, 8, -2, 9,-13, 5, -1, 11,-15, 7, -3, 10,-12, 6, 0}
+ },
+ {
+ { 6,-18, 26,-14, 2,-22, 30,-10, 8,-16, 28,-12, 4,-20, 32, -8},
+ { -4, 20,-24, 16, 0, 24,-28, 12, -6, 18,-26, 14, -2, 22,-30, 10}
+ }
+};
+
+const int xmesa_kernel1[16] = {
+ 0*47, 9*47, 4*47, 12*47, /* 47 = (255*3)/16 */
+ 6*47, 2*47, 14*47, 8*47,
+ 10*47, 1*47, 5*47, 11*47,
+ 7*47, 13*47, 3*47, 15*47
+};
+
/*
- * Return the size (width,height of the current color buffer.
- * This function should be called by the glViewport function because
- * glViewport is often called when the window gets resized. We need to
- * update some X/Mesa stuff when that happens.
+ * Return the size (width, height) of the X window for the given GLframebuffer.
* Output: width - width of buffer in pixels.
* height - height of buffer in pixels.
*/
static void
-get_buffer_size( GLcontext *ctx, GLuint *width, GLuint *height )
+get_buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ /* We can do this cast because the first field in the XMesaBuffer
+ * struct is a GLframebuffer struct. If this weren't true, we'd
+ * need a pointer from the GLframebuffer to the XMesaBuffer.
+ */
+ const XMesaBuffer xmBuffer = (XMesaBuffer) buffer;
unsigned int winwidth, winheight;
-#ifndef XFree86Server
+#ifdef XFree86Server
+ /* XFree86 GLX renderer */
+ winwidth = MIN2(xmBuffer->frontbuffer->width, MAX_WIDTH);
+ winheight = MIN2(xmBuffer->frontbuffer->height, MAX_HEIGHT);
+#else
Window root;
int winx, winy;
unsigned int bw, d;
_glthread_LOCK_MUTEX(_xmesa_lock);
- XGetGeometry( xmesa->display, xmesa->xm_buffer->frontbuffer, &root,
+ XSync(xmBuffer->xm_visual->display, 0); /* added for Chromium */
+ XGetGeometry( xmBuffer->xm_visual->display, xmBuffer->frontbuffer, &root,
&winx, &winy, &winwidth, &winheight, &bw, &d );
_glthread_UNLOCK_MUTEX(_xmesa_lock);
-#else
-
- winwidth = xmesa->xm_buffer->frontbuffer->width;
- winheight = xmesa->xm_buffer->frontbuffer->height;
#endif
*width = winwidth;
*height = winheight;
-
- if ( winwidth!=xmesa->xm_buffer->width
- || winheight!=xmesa->xm_buffer->height) {
- xmesa->xm_buffer->width = winwidth;
- xmesa->xm_buffer->height = winheight;
- xmesa_alloc_back_buffer( xmesa->xm_buffer );
- }
-
- /* Needed by FLIP macro */
- xmesa->xm_buffer->bottom = (int) winheight - 1;
-
- if (xmesa->xm_buffer->backimage) {
- /* Needed by PIXELADDR1 macro */
- xmesa->xm_buffer->ximage_width1
- = xmesa->xm_buffer->backimage->bytes_per_line;
- xmesa->xm_buffer->ximage_origin1
- = (GLubyte *) xmesa->xm_buffer->backimage->data
- + xmesa->xm_buffer->ximage_width1 * (winheight-1);
-
- /* Needed by PIXELADDR2 macro */
- xmesa->xm_buffer->ximage_width2
- = xmesa->xm_buffer->backimage->bytes_per_line / 2;
- xmesa->xm_buffer->ximage_origin2
- = (GLushort *) xmesa->xm_buffer->backimage->data
- + xmesa->xm_buffer->ximage_width2 * (winheight-1);
-
- /* Needed by PIXELADDR3 macro */
- xmesa->xm_buffer->ximage_width3
- = xmesa->xm_buffer->backimage->bytes_per_line;
- xmesa->xm_buffer->ximage_origin3
- = (GLubyte *) xmesa->xm_buffer->backimage->data
- + xmesa->xm_buffer->ximage_width3 * (winheight-1);
-
- /* Needed by PIXELADDR4 macro */
- xmesa->xm_buffer->ximage_width4 = xmesa->xm_buffer->backimage->width;
- xmesa->xm_buffer->ximage_origin4
- = (GLuint *) xmesa->xm_buffer->backimage->data
- + xmesa->xm_buffer->ximage_width4 * (winheight-1);
- }
}
static void
-finish( GLcontext *ctx )
+finish_or_flush( GLcontext *ctx )
{
#ifdef XFree86Server
/* NOT_NEEDED */
#else
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (xmesa) {
_glthread_LOCK_MUTEX(_xmesa_lock);
XSync( xmesa->display, False );
}
-static void
-flush( GLcontext *ctx )
-{
-#ifdef XFree86Server
- /* NOT_NEEDED */
-#else
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
- if (xmesa) {
- _glthread_LOCK_MUTEX(_xmesa_lock);
- XFlush( xmesa->display );
- _glthread_UNLOCK_MUTEX(_xmesa_lock);
- }
-#endif
-}
-
-
-
-
-static GLboolean
-set_draw_buffer( GLcontext *ctx, GLenum mode )
-{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
- if (mode == GL_FRONT_LEFT) {
- /* write to front buffer */
- xmesa->xm_buffer->buffer = xmesa->xm_buffer->frontbuffer;
- xmesa_update_span_funcs(ctx);
- return GL_TRUE;
- }
- else if (mode==GL_BACK_LEFT && xmesa->xm_buffer->db_state) {
- /* write to back buffer */
- if (xmesa->xm_buffer->backpixmap) {
- xmesa->xm_buffer->buffer =
- (XMesaDrawable)xmesa->xm_buffer->backpixmap;
- }
- else if (xmesa->xm_buffer->backimage) {
- xmesa->xm_buffer->buffer = None;
- }
- else {
- /* just in case there wasn't enough memory for back buffer */
- xmesa->xm_buffer->buffer = xmesa->xm_buffer->frontbuffer;
- }
- xmesa_update_span_funcs(ctx);
- return GL_TRUE;
- }
- else {
- return GL_FALSE;
- }
-}
-
+/*
+ * This chooses the color buffer for reading and writing spans, points,
+ * lines, and triangles.
+ */
void
-xmesa_set_read_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode )
+xmesa_set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
{
- XMesaBuffer target;
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ /* We can make this cast since the XMesaBuffer wraps GLframebuffer.
+ * GLframebuffer is the first member in a XMesaBuffer struct.
+ */
+ XMesaBuffer target = (XMesaBuffer) buffer;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- if (buffer == ctx->DrawBuffer) {
- target = xmesa->xm_buffer;
- xmesa->use_read_buffer = GL_FALSE;
- }
- else {
- ASSERT(buffer == ctx->ReadBuffer);
- target = xmesa->xm_read_buffer;
- xmesa->use_read_buffer = GL_TRUE;
- }
+ /* This assignment tells the span/point/line/triangle functions
+ * which XMesaBuffer to use.
+ */
+ xmesa->xm_buffer = target;
- if (mode == GL_FRONT_LEFT) {
+ /*
+ * Now determine front vs back color buffer.
+ */
+ if (bufferBit == DD_FRONT_LEFT_BIT) {
target->buffer = target->frontbuffer;
xmesa_update_span_funcs(ctx);
}
- else if (mode==GL_BACK_LEFT && xmesa->xm_read_buffer->db_state) {
+ else if (bufferBit == DD_BACK_LEFT_BIT) {
+ ASSERT(target->db_state);
if (target->backpixmap) {
- target->buffer = (XMesaDrawable)xmesa->xm_buffer->backpixmap;
+ /* back buffer is a pixmap */
+ target->buffer = (XMesaDrawable) target->backpixmap;
}
else if (target->backimage) {
+ /* back buffer is an XImage */
target->buffer = None;
}
else {
- /* just in case there wasn't enough memory for back buffer */
+ /* No back buffer!!!! Must be out of memory, use front buffer */
target->buffer = target->frontbuffer;
}
xmesa_update_span_funcs(ctx);
}
+ else if (bufferBit & (DD_AUX0_BIT | DD_AUX1_BIT | DD_AUX2_BIT | DD_AUX3_BIT)) {
+ _swrast_use_aux_buffer(ctx, buffer, bufferBit);
+ }
else {
- _mesa_problem(ctx, "invalid buffer in set_read_buffer() in xmesa2.c");
+ _mesa_problem(ctx, "invalid buffer 0x%x in set_buffer() in xm_dd.c");
+ return;
}
}
static void
clear_index( GLcontext *ctx, GLuint index )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
xmesa->clearpixel = (unsigned long) index;
- XMesaSetForeground( xmesa->display, xmesa->xm_buffer->cleargc,
+ XMesaSetForeground( xmesa->display, xmesa->xm_draw_buffer->cleargc,
(unsigned long) index );
}
static void
-clear_color( GLcontext *ctx, const GLchan color[4] )
+clear_color( GLcontext *ctx, const GLfloat color[4] )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
- xmesa->clearcolor[0] = color[0];
- xmesa->clearcolor[1] = color[1];
- xmesa->clearcolor[2] = color[2];
- xmesa->clearcolor[3] = color[3];
- xmesa->clearpixel = xmesa_color_to_pixel( xmesa, color[0], color[1],
- color[2], color[3],
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
+ xmesa->clearpixel = xmesa_color_to_pixel( xmesa,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2],
+ xmesa->clearcolor[3],
xmesa->xm_visual->undithered_pf );
_glthread_LOCK_MUTEX(_xmesa_lock);
- XMesaSetForeground( xmesa->display, xmesa->xm_buffer->cleargc,
+ XMesaSetForeground( xmesa->display, xmesa->xm_draw_buffer->cleargc,
xmesa->clearpixel );
_glthread_UNLOCK_MUTEX(_xmesa_lock);
}
static void
index_mask( GLcontext *ctx, GLuint mask )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
- if (xmesa->xm_buffer->buffer != XIMAGE) {
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ if (xmesa->xm_draw_buffer->buffer != XIMAGE) {
unsigned long m;
if (mask==0xffffffff) {
m = ((unsigned long)~0L);
else {
m = (unsigned long) mask;
}
- XMesaSetPlaneMask( xmesa->display, xmesa->xm_buffer->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->gc, m );
}
}
color_mask(GLcontext *ctx,
GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask)
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
- int xclass = GET_VISUAL_CLASS(xmesa->xm_visual);
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const int xclass = xmesa->xm_visual->mesa_visual.visualType;
(void) amask;
- if (xmesa->xm_buffer->buffer != XIMAGE
- && (xclass == TrueColor || xclass == DirectColor)) {
+ if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) {
unsigned long m;
if (rmask && gmask && bmask) {
m = ((unsigned long)~0L);
if (gmask) m |= GET_GREENMASK(xmesa->xm_visual);
if (bmask) m |= GET_BLUEMASK(xmesa->xm_visual);
}
- XMesaSetPlaneMask( xmesa->display, xmesa->xm_buffer->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->gc, m );
}
}
clear_front_pixmap( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
- XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->frontbuffer,
- xmesa->xm_buffer->cleargc,
+ XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->frontbuffer,
+ xmesa->xm_draw_buffer->cleargc,
0, 0,
- xmesa->xm_buffer->width+1,
- xmesa->xm_buffer->height+1 );
+ xmesa->xm_draw_buffer->mesa_buffer.Width + 1,
+ xmesa->xm_draw_buffer->mesa_buffer.Height + 1 );
}
else {
- XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->frontbuffer,
- xmesa->xm_buffer->cleargc,
- x, xmesa->xm_buffer->height - y - height,
+ XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->frontbuffer,
+ xmesa->xm_draw_buffer->cleargc,
+ x, xmesa->xm_draw_buffer->mesa_buffer.Height - y - height,
width, height );
}
}
clear_back_pixmap( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
- XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->backpixmap,
- xmesa->xm_buffer->cleargc,
+ XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->backpixmap,
+ xmesa->xm_draw_buffer->cleargc,
0, 0,
- xmesa->xm_buffer->width+1,
- xmesa->xm_buffer->height+1 );
+ xmesa->xm_draw_buffer->mesa_buffer.Width + 1,
+ xmesa->xm_draw_buffer->mesa_buffer.Height + 1 );
}
else {
- XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->backpixmap,
- xmesa->xm_buffer->cleargc,
- x, xmesa->xm_buffer->height - y - height,
+ XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->backpixmap,
+ xmesa->xm_draw_buffer->cleargc,
+ x, xmesa->xm_draw_buffer->mesa_buffer.Height - y - height,
width, height );
}
}
clear_8bit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
- size_t n = xmesa->xm_buffer->backimage->bytes_per_line
- * xmesa->xm_buffer->backimage->height;
- MEMSET( xmesa->xm_buffer->backimage->data, xmesa->clearpixel, n );
+ size_t n = xmesa->xm_draw_buffer->backimage->bytes_per_line
+ * xmesa->xm_draw_buffer->backimage->height;
+ MEMSET( xmesa->xm_draw_buffer->backimage->data, xmesa->clearpixel, n );
}
else {
GLint i;
for (i=0;i<height;i++) {
- GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y+i );
+ GLubyte *ptr = PIXELADDR1( xmesa->xm_draw_buffer, x, y+i );
MEMSET( ptr, xmesa->clearpixel, width );
}
}
clear_HPCR_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
- GLint i, c16 = (xmesa->xm_buffer->backimage->bytes_per_line>>4)<<4;
- GLubyte *ptr = (GLubyte *)xmesa->xm_buffer->backimage->data;
- for (i=0; i<xmesa->xm_buffer->backimage->height; i++) {
+ GLint i, c16 = (xmesa->xm_draw_buffer->backimage->bytes_per_line>>4)<<4;
+ GLubyte *ptr = (GLubyte *)xmesa->xm_draw_buffer->backimage->data;
+ for (i=0; i<xmesa->xm_draw_buffer->backimage->height; i++) {
GLint j;
GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
if (i&1) {
ptr[15] = sptr[15];
ptr += 16;
}
- for (; j<xmesa->xm_buffer->backimage->bytes_per_line; j++) {
+ for (; j<xmesa->xm_draw_buffer->backimage->bytes_per_line; j++) {
*ptr = sptr[j&15];
ptr++;
}
else {
GLint i;
for (i=y; i<y+height; i++) {
- GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, i );
+ GLubyte *ptr = PIXELADDR1( xmesa->xm_draw_buffer, x, i );
int j;
GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
if (i&1) {
clear_16bit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
register GLuint pixel = (GLuint) xmesa->clearpixel;
if (xmesa->swapbytes) {
pixel = ((pixel >> 8) & 0x00ff) | ((pixel << 8) & 0xff00);
}
if (all) {
register GLuint n;
- register GLuint *ptr4 = (GLuint *) xmesa->xm_buffer->backimage->data;
+ register GLuint *ptr4 = (GLuint *) xmesa->xm_draw_buffer->backimage->data;
if ((pixel & 0xff) == ((pixel >> 8) & 0xff)) {
/* low and high bytes are equal so use memset() */
- n = xmesa->xm_buffer->backimage->bytes_per_line
- * xmesa->xm_buffer->height;
+ n = xmesa->xm_draw_buffer->backimage->bytes_per_line
+ * xmesa->xm_draw_buffer->mesa_buffer.Height;
MEMSET( ptr4, pixel & 0xff, n );
}
else {
pixel = pixel | (pixel<<16);
- n = xmesa->xm_buffer->backimage->bytes_per_line
- * xmesa->xm_buffer->height / 4;
+ n = xmesa->xm_draw_buffer->backimage->bytes_per_line
+ * xmesa->xm_draw_buffer->mesa_buffer.Height / 4;
do {
*ptr4++ = pixel;
n--;
} while (n!=0);
- if ((xmesa->xm_buffer->backimage->bytes_per_line *
- xmesa->xm_buffer->height) & 0x2)
+ if ((xmesa->xm_draw_buffer->backimage->bytes_per_line *
+ xmesa->xm_draw_buffer->mesa_buffer.Height) & 0x2)
*(GLushort *)ptr4 = pixel & 0xffff;
}
}
else {
register int i, j;
for (j=0;j<height;j++) {
- register GLushort *ptr2 = PIXELADDR2( xmesa->xm_buffer, x, y+j );
+ register GLushort *ptr2 = PIXELADDR2( xmesa->xm_draw_buffer, x, y+j );
for (i=0;i<width;i++) {
*ptr2++ = pixel;
}
clear_24bit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
const GLubyte r = xmesa->clearcolor[0];
const GLubyte g = xmesa->clearcolor[1];
const GLubyte b = xmesa->clearcolor[2];
+#if 0 /* See below */
register GLuint clearPixel;
if (xmesa->swapbytes) {
clearPixel = (b << 16) | (g << 8) | r;
else {
clearPixel = (r << 16) | (g << 8) | b;
}
+#endif
if (all) {
if (r==g && g==b) {
/* same value for all three components (gray) */
- const GLint w3 = xmesa->xm_buffer->width * 3;
- const GLint h = xmesa->xm_buffer->height;
+ const GLint w3 = xmesa->xm_draw_buffer->mesa_buffer.Width * 3;
+ const GLint h = xmesa->xm_draw_buffer->mesa_buffer.Height;
GLint i;
for (i = 0; i < h; i++) {
- bgr_t *ptr3 = PIXELADDR3(xmesa->xm_buffer, 0, i);
+ bgr_t *ptr3 = PIXELADDR3(xmesa->xm_draw_buffer, 0, i);
MEMSET(ptr3, r, w3);
}
}
else {
/* the usual case */
- const GLint w = xmesa->xm_buffer->width;
- const GLint h = xmesa->xm_buffer->height;
+ const GLint w = xmesa->xm_draw_buffer->mesa_buffer.Width;
+ const GLint h = xmesa->xm_draw_buffer->mesa_buffer.Height;
GLint i, j;
for (i = 0; i < h; i++) {
- bgr_t *ptr3 = PIXELADDR3(xmesa->xm_buffer, 0, i);
+ bgr_t *ptr3 = PIXELADDR3(xmesa->xm_draw_buffer, 0, i);
for (j = 0; j < w; j++) {
ptr3->r = r;
ptr3->g = g;
/* same value for all three components (gray) */
GLint j;
for (j=0;j<height;j++) {
- bgr_t *ptr3 = PIXELADDR3( xmesa->xm_buffer, x, y+j );
+ bgr_t *ptr3 = PIXELADDR3( xmesa->xm_draw_buffer, x, y+j );
MEMSET(ptr3, r, 3 * width);
}
}
/* non-gray clear color */
GLint i, j;
for (j = 0; j < height; j++) {
- bgr_t *ptr3 = PIXELADDR3( xmesa->xm_buffer, x, y+j );
+ bgr_t *ptr3 = PIXELADDR3( xmesa->xm_draw_buffer, x, y+j );
for (i = 0; i < width; i++) {
ptr3->r = r;
ptr3->g = g;
pixel4[1] = (clearPixel << 16) | (clearPixel >> 8);
pixel4[2] = (clearPixel << 8) | (clearPixel >> 16);
for (j=0;j<height;j++) {
- bgr_t *ptr3 = PIXELADDR3( xmesa->xm_buffer, x, y+j );
+ bgr_t *ptr3 = PIXELADDR3( xmesa->xm_draw_buffer, x, y+j );
register GLuint *ptr4 = (GLuint *)ptr3;
register GLuint *p, px;
GLuint w = width;
clear_32bit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
register GLuint pixel = (GLuint) xmesa->clearpixel;
if (xmesa->swapbytes) {
pixel = ((pixel >> 24) & 0x000000ff)
| ((pixel << 24) & 0xff000000);
}
if (all) {
- register GLint n = xmesa->xm_buffer->width * xmesa->xm_buffer->height;
- register GLuint *ptr4 = (GLuint *) xmesa->xm_buffer->backimage->data;
+ register GLint n = xmesa->xm_draw_buffer->mesa_buffer.Width
+ * xmesa->xm_draw_buffer->mesa_buffer.Height;
+ register GLuint *ptr4 = (GLuint *) xmesa->xm_draw_buffer->backimage->data;
if (pixel==0) {
MEMSET( ptr4, pixel, 4*n );
}
}
else {
register int i, j;
- register GLuint pixel = (GLuint) xmesa->clearpixel;
for (j=0;j<height;j++) {
- register GLuint *ptr4 = PIXELADDR4( xmesa->xm_buffer, x, y+j );
+ register GLuint *ptr4 = PIXELADDR4( xmesa->xm_draw_buffer, x, y+j );
for (i=0;i<width;i++) {
*ptr4++ = pixel;
}
clear_nbit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
- XMesaImage *img = xmesa->xm_buffer->backimage;
- if (all) {
- register int i, j;
- width = xmesa->xm_buffer->width;
- height = xmesa->xm_buffer->height;
- for (j=0;j<height;j++) {
- for (i=0;i<width;i++) {
- XMesaPutPixel( img, i, j, xmesa->clearpixel );
- }
- }
- }
- else {
- /* TODO: optimize this */
- register int i, j;
- y = FLIP(xmesa->xm_buffer, y);
- for (j=0;j<height;j++) {
- for (i=0;i<width;i++) {
- XMesaPutPixel( img, x+i, y-j, xmesa->clearpixel );
- }
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaImage *img = xmesa->xm_draw_buffer->backimage;
+ register int i, j;
+
+ /* We can ignore 'all' here - x, y, width, height are always right */
+ (void) all;
+
+ /* TODO: optimize this */
+ y = FLIP(xmesa->xm_draw_buffer, y);
+ for (j = 0; j < height; j++) {
+ for (i = 0; i < width; i++) {
+ XMesaPutPixel(img, x+i, y-j, xmesa->clearpixel);
}
}
}
clear_buffers( GLcontext *ctx, GLbitfield mask,
GLboolean all, GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
if ((mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) &&
- xmesa->xm_buffer->gl_buffer->UseSoftwareAlphaBuffers &&
+ xmesa->xm_draw_buffer->mesa_buffer.UseSoftwareAlphaBuffers &&
ctx->Color.ColorMask[ACOMP]) {
- _mesa_clear_alpha_buffers(ctx);
+ _swrast_clear_alpha_buffers(ctx);
}
/* we can't handle color or index masking */
if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
if (mask & DD_FRONT_LEFT_BIT) {
- ASSERT(xmesa->xm_buffer->front_clear_func);
- (*xmesa->xm_buffer->front_clear_func)( ctx, all, x, y, width, height );
+ ASSERT(xmesa->xm_draw_buffer->front_clear_func);
+ (*xmesa->xm_draw_buffer->front_clear_func)( ctx, all, x, y, width, height );
mask &= ~DD_FRONT_LEFT_BIT;
}
if (mask & DD_BACK_LEFT_BIT) {
- ASSERT(xmesa->xm_buffer->back_clear_func);
- (*xmesa->xm_buffer->back_clear_func)( ctx, all, x, y, width, height );
+ ASSERT(xmesa->xm_draw_buffer->back_clear_func);
+ (*xmesa->xm_draw_buffer->back_clear_func)( ctx, all, x, y, width, height );
mask &= ~DD_BACK_LEFT_BIT;
}
}
}
-static void
-resize_buffers( GLcontext *ctx )
+/*
+ * When we detect that the user has resized the window this function will
+ * get called. Here we'll reallocate the back buffer, depth buffer,
+ * stencil buffer etc. to match the new window size.
+ * The buffer->Width and buffer->Height values will indicate the new size.
+ */
+void
+xmesa_resize_buffers( GLframebuffer *buffer )
{
- _swrast_alloc_buffers( ctx );
+ int height = (int) buffer->Height;
+ /* We can do this cast because the first field in the XMesaBuffer
+ * struct is a GLframebuffer struct. If this weren't true, we'd
+ * need a pointer from the GLframebuffer to the XMesaBuffer.
+ */
+ XMesaBuffer xmBuffer = (XMesaBuffer) buffer;
+
+ xmesa_alloc_back_buffer( xmBuffer );
+
+ /* Needed by FLIP macro */
+ xmBuffer->bottom = height - 1;
+
+ if (xmBuffer->backimage) {
+ /* Needed by PIXELADDR1 macro */
+ xmBuffer->ximage_width1 = xmBuffer->backimage->bytes_per_line;
+ xmBuffer->ximage_origin1 = (GLubyte *) xmBuffer->backimage->data
+ + xmBuffer->ximage_width1 * (height-1);
+
+ /* Needed by PIXELADDR2 macro */
+ xmBuffer->ximage_width2 = xmBuffer->backimage->bytes_per_line / 2;
+ xmBuffer->ximage_origin2 = (GLushort *) xmBuffer->backimage->data
+ + xmBuffer->ximage_width2 * (height-1);
+
+ /* Needed by PIXELADDR3 macro */
+ xmBuffer->ximage_width3 = xmBuffer->backimage->bytes_per_line;
+ xmBuffer->ximage_origin3 = (GLubyte *) xmBuffer->backimage->data
+ + xmBuffer->ximage_width3 * (height-1);
+
+ /* Needed by PIXELADDR4 macro */
+ xmBuffer->ximage_width4 = xmBuffer->backimage->width;
+ xmBuffer->ximage_origin4 = (GLuint *) xmBuffer->backimage->data
+ + xmBuffer->ximage_width4 * (height-1);
+ }
+
+ _swrast_alloc_buffers( buffer );
}
-#if 0
-/*
+
+#ifndef XFree86Server
+/* XXX this was never tested in the Xserver environment */
+
+/**
* This function implements glDrawPixels() with an XPutImage call when
* drawing to the front buffer (X Window drawable).
* The image format must be GL_BGRA to match the PF_8R8G8B pixel format.
- * XXX top/bottom edge clipping is broken!
*/
-static GLboolean
-drawpixels_8R8G8B( GLcontext *ctx,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid *pixels )
+static void
+xmesa_DrawPixels_8R8G8B( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
XMesaDisplay *dpy = xmesa->xm_visual->display;
- XMesaDrawable buffer = xmesa->xm_buffer->buffer;
- XMesaGC gc = xmesa->xm_buffer->gc;
- assert(dpy);
- assert(buffer);
- assert(gc);
-
- /* XXX also check for pixel scale/bias/lookup/zooming! */
- if (format == GL_BGRA && type == GL_UNSIGNED_BYTE) {
+ const XMesaDrawable buffer = xmesa->xm_draw_buffer->buffer;
+ const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+
+ ASSERT(dpy);
+ ASSERT(gc);
+ ASSERT(xmesa->xm_visual->dithered_pf == PF_8R8G8B);
+ ASSERT(xmesa->xm_visual->undithered_pf == PF_8R8G8B);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (buffer && /* buffer != 0 means it's a Window or Pixmap */
+ format == GL_BGRA &&
+ type == GL_UNSIGNED_BYTE &&
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
int dstX = x;
int dstY = y;
int w = width;
int h = height;
int srcX = unpack->SkipPixels;
int srcY = unpack->SkipRows;
- if (_mesa_clip_pixelrect(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
+ int rowLength = unpack->RowLength ? unpack->RowLength : width;
+
+ if (unpack->BufferObj->Name) {
+ /* unpack from PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(invalid PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx,
+ GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB,
+ unpack->BufferObj);
+ if (!buf) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ return;
+ }
+ pixels = ADD_POINTERS(buf, pixels);
+ }
+
+ if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
+ /* This is a little tricky since all coordinates up to now have
+ * been in the OpenGL bottom-to-top orientation. X is top-to-bottom
+ * so we have to carefully compute the Y coordinates/addresses here.
+ */
XMesaImage ximage;
MEMSET(&ximage, 0, sizeof(XMesaImage));
ximage.width = width;
ximage.height = height;
ximage.format = ZPixmap;
- ximage.data = (char *) pixels + (height - 1) * width * 4;
+ ximage.data = (char *) pixels
+ + ((srcY + h - 1) * rowLength + srcX) * 4;
ximage.byte_order = LSBFirst;
ximage.bitmap_unit = 32;
ximage.bitmap_bit_order = LSBFirst;
ximage.bitmap_pad = 32;
ximage.depth = 24;
- ximage.bytes_per_line = -width * 4;
+ ximage.bytes_per_line = -rowLength * 4; /* negative to flip image */
ximage.bits_per_pixel = 32;
- ximage.red_mask = 0xff0000;
- ximage.green_mask = 0x00ff00;
- ximage.blue_mask = 0x0000ff;
- dstY = FLIP(xmesa->xm_buffer,dstY) - height + 1;
- XPutImage(dpy, buffer, gc, &ximage, srcX, srcY, dstX, dstY, w, h);
- return GL_TRUE;
+ /* it seems we don't need to set the ximage.red/green/blue_mask fields */
+ /* flip Y axis for dest position */
+ dstY = FLIP(xmesa->xm_draw_buffer, dstY) - h + 1;
+ XPutImage(dpy, buffer, gc, &ximage, 0, 0, dstX, dstY, w, h);
}
+
+ if (unpack->BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
+ }
+ }
+ else {
+ /* software fallback */
+ _swrast_DrawPixels(ctx, x, y, width, height,
+ format, type, unpack, pixels);
}
- return GL_FALSE;
}
-#endif
+/**
+ * This function implements glDrawPixels() with an XPutImage call when
+ * drawing to the front buffer (X Window drawable). The image format
+ * must be GL_RGB and image type must be GL_UNSIGNED_SHORT_5_6_5 to
+ * match the PF_5R6G5B pixel format.
+ */
+static void
+xmesa_DrawPixels_5R6G5B( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ const XMesaDrawable buffer = xmesa->xm_draw_buffer->buffer;
+ const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+
+ ASSERT(dpy);
+ ASSERT(gc);
+ ASSERT(xmesa->xm_visual->undithered_pf == PF_5R6G5B);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (buffer && /* buffer != 0 means it's a Window or Pixmap */
+ format == GL_RGB &&
+ type == GL_UNSIGNED_SHORT_5_6_5 &&
+ !ctx->Color.DitherFlag && /* no dithering */
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
+ int dstX = x;
+ int dstY = y;
+ int w = width;
+ int h = height;
+ int srcX = unpack->SkipPixels;
+ int srcY = unpack->SkipRows;
+ int rowLength = unpack->RowLength ? unpack->RowLength : width;
+
+ if (unpack->BufferObj->Name) {
+ /* unpack from PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(invalid PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx,
+ GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB,
+ unpack->BufferObj);
+ if (!buf) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ return;
+ }
+ pixels = ADD_POINTERS(buf, pixels);
+ }
+
+ if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
+ /* This is a little tricky since all coordinates up to now have
+ * been in the OpenGL bottom-to-top orientation. X is top-to-bottom
+ * so we have to carefully compute the Y coordinates/addresses here.
+ */
+ XMesaImage ximage;
+ MEMSET(&ximage, 0, sizeof(XMesaImage));
+ ximage.width = width;
+ ximage.height = height;
+ ximage.format = ZPixmap;
+ ximage.data = (char *) pixels
+ + ((srcY + h - 1) * rowLength + srcX) * 2;
+ ximage.byte_order = LSBFirst;
+ ximage.bitmap_unit = 16;
+ ximage.bitmap_bit_order = LSBFirst;
+ ximage.bitmap_pad = 16;
+ ximage.depth = 16;
+ ximage.bytes_per_line = -rowLength * 2; /* negative to flip image */
+ ximage.bits_per_pixel = 16;
+ /* it seems we don't need to set the ximage.red/green/blue_mask fields */
+ /* flip Y axis for dest position */
+ dstY = FLIP(xmesa->xm_draw_buffer, dstY) - h + 1;
+ XPutImage(dpy, buffer, gc, &ximage, 0, 0, dstX, dstY, w, h);
+ }
+
+ if (unpack->BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
+ }
+ }
+ else {
+ /* software fallback */
+ _swrast_DrawPixels(ctx, x, y, width, height,
+ format, type, unpack, pixels);
+ }
+}
+
+
+
+/**
+ * Implement glCopyPixels for the front color buffer (or back buffer Pixmap)
+ * for the color buffer. Don't support zooming, pixel transfer, etc.
+ * We do support copying from one window to another, ala glXMakeCurrentRead.
+ */
+static void
+xmesa_CopyPixels( GLcontext *ctx,
+ GLint srcx, GLint srcy, GLsizei width, GLsizei height,
+ GLint destx, GLint desty, GLenum type )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ const XMesaDrawable drawBuffer = xmesa->xm_draw_buffer->buffer;
+ const XMesaDrawable readBuffer = xmesa->xm_read_buffer->buffer;
+ const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+
+ ASSERT(dpy);
+ ASSERT(gc);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (ctx->Color.DrawBuffer[0] == GL_FRONT &&
+ ctx->Pixel.ReadBuffer == GL_FRONT &&
+ drawBuffer && /* buffer != 0 means it's a Window or Pixmap */
+ readBuffer &&
+ type == GL_COLOR &&
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
+ /* Note: we don't do any special clipping work here. We could,
+ * but X will do it for us.
+ */
+ srcy = FLIP(xmesa->xm_read_buffer, srcy) - height + 1;
+ desty = FLIP(xmesa->xm_draw_buffer, desty) - height + 1;
+ XCopyArea(dpy, readBuffer, drawBuffer, gc,
+ srcx, srcy, width, height, destx, desty);
+ }
+ else {
+ _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type );
+ }
+}
+#endif /* XFree86Server */
+
+
+
+/*
+ * Every driver should implement a GetString function in order to
+ * return a meaningful GL_RENDERER string.
+ */
static const GLubyte *
get_string( GLcontext *ctx, GLenum name )
{
#endif
case GL_VENDOR:
#ifdef XFree86Server
- return (const GLubyte *) "VA Linux Systems, Inc.";
+ return (const GLubyte *) "Mesa project: www.mesa3d.org";
#else
return NULL;
#endif
}
+/*
+ * We implement the glEnable function only because we care about
+ * dither enable/disable.
+ */
static void
enable( GLcontext *ctx, GLenum pname, GLboolean state )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
switch (pname) {
case GL_DITHER:
void xmesa_update_state( GLcontext *ctx, GLuint new_state )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
/* Propogate statechange information to swrast and swrast_setup
* modules. The X11 driver has no internal GL-dependent state.
/* setup pointers to front and back buffer clear functions */
- xmesa->xm_buffer->front_clear_func = clear_front_pixmap;
- if (xmesa->xm_buffer->backpixmap != XIMAGE) {
- xmesa->xm_buffer->back_clear_func = clear_back_pixmap;
+ xmesa->xm_draw_buffer->front_clear_func = clear_front_pixmap;
+ if (xmesa->xm_draw_buffer->backpixmap != XIMAGE) {
+ xmesa->xm_draw_buffer->back_clear_func = clear_back_pixmap;
}
else if (sizeof(GLushort)!=2 || sizeof(GLuint)!=4) {
- xmesa->xm_buffer->back_clear_func = clear_nbit_ximage;
+ xmesa->xm_draw_buffer->back_clear_func = clear_nbit_ximage;
}
else switch (xmesa->xm_visual->BitsPerPixel) {
case 8:
if (xmesa->xm_visual->hpcr_clear_flag) {
- xmesa->xm_buffer->back_clear_func = clear_HPCR_ximage;
+ xmesa->xm_draw_buffer->back_clear_func = clear_HPCR_ximage;
}
else {
- xmesa->xm_buffer->back_clear_func = clear_8bit_ximage;
+ xmesa->xm_draw_buffer->back_clear_func = clear_8bit_ximage;
}
break;
case 16:
- xmesa->xm_buffer->back_clear_func = clear_16bit_ximage;
+ xmesa->xm_draw_buffer->back_clear_func = clear_16bit_ximage;
break;
case 24:
- xmesa->xm_buffer->back_clear_func = clear_24bit_ximage;
+ xmesa->xm_draw_buffer->back_clear_func = clear_24bit_ximage;
break;
case 32:
- xmesa->xm_buffer->back_clear_func = clear_32bit_ximage;
+ xmesa->xm_draw_buffer->back_clear_func = clear_32bit_ximage;
break;
default:
- xmesa->xm_buffer->back_clear_func = clear_nbit_ximage;
+ xmesa->xm_draw_buffer->back_clear_func = clear_nbit_ximage;
break;
}
- xmesa_update_span_funcs(ctx);
+ if (ctx->Color._DrawDestMask[0] & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) {
+ xmesa_update_span_funcs(ctx);
+ }
}
-/* Setup pointers and other driver state that is constant for the life
- * of a context.
+/**
+ * Called via ctx->Driver.TestProxyTeximage(). Normally, we'd just use
+ * the _mesa_test_proxy_teximage() fallback function, but we're going to
+ * special-case the 3D texture case to allow textures up to 512x512x32
+ * texels.
*/
-void xmesa_init_pointers( GLcontext *ctx )
+static GLboolean
+test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat, GLenum format, GLenum type,
+ GLint width, GLint height, GLint depth, GLint border)
{
- TNLcontext *tnl;
-
- ctx->Driver.GetString = get_string;
- ctx->Driver.GetBufferSize = get_buffer_size;
- ctx->Driver.Flush = flush;
- ctx->Driver.Finish = finish;
-
- /* Software rasterizer pixel paths:
- */
- ctx->Driver.Accum = _swrast_Accum;
- ctx->Driver.Bitmap = _swrast_Bitmap;
- ctx->Driver.Clear = clear_buffers;
- ctx->Driver.ResizeBuffersMESA = resize_buffers;
- ctx->Driver.CopyPixels = _swrast_CopyPixels;
- ctx->Driver.DrawPixels = _swrast_DrawPixels;
- ctx->Driver.ReadPixels = _swrast_ReadPixels;
-
- /* Software texture functions:
- */
- ctx->Driver.TexImage1D = _mesa_store_teximage1d;
- ctx->Driver.TexImage2D = _mesa_store_teximage2d;
- ctx->Driver.TexImage3D = _mesa_store_teximage3d;
- ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
- ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d;
- ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
- ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
-
- ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
- ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
- ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
- ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
- ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
-
-
- /* Swrast hooks for imaging extensions:
- */
- ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
- ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
- ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
- ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
+ if (target == GL_PROXY_TEXTURE_3D) {
+ /* special case for 3D textures */
+ if (width * height * depth > 512 * 512 * 64 ||
+ width < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(width - 2 * border) != 1) ||
+ height < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(height - 2 * border) != 1) ||
+ depth < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(depth - 2 * border) != 1)) {
+ /* Bad size, or too many texels */
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+ }
+ else {
+ /* use the fallback routine for 1D, 2D, cube and rect targets */
+ return _mesa_test_proxy_teximage(ctx, target, level, internalFormat,
+ format, type, width, height, depth,
+ border);
+ }
+}
- /* Statechange callbacks:
- */
- ctx->Driver.SetDrawBuffer = set_draw_buffer;
- ctx->Driver.ClearIndex = clear_index;
- ctx->Driver.ClearColor = clear_color;
- ctx->Driver.IndexMask = index_mask;
- ctx->Driver.ColorMask = color_mask;
- ctx->Driver.Enable = enable;
+/**
+ * In SW, we don't really compress GL_COMPRESSED_RGB[A] textures!
+ */
+static const struct gl_texture_format *
+choose_tex_format( GLcontext *ctx, GLint internalFormat,
+ GLenum format, GLenum type )
+{
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_ARB:
+ return &_mesa_texformat_rgb;
+ case GL_COMPRESSED_RGBA_ARB:
+ return &_mesa_texformat_rgba;
+ default:
+ return _mesa_choose_tex_format(ctx, internalFormat, format, type);
+ }
+}
- /* Initialize the TNL driver interface:
- */
- tnl = TNL_CONTEXT(ctx);
- tnl->Driver.RenderStart = _swsetup_RenderStart;
- tnl->Driver.RenderFinish = _swsetup_RenderFinish;
- tnl->Driver.BuildProjectedVertices = _swsetup_BuildProjectedVertices;
- tnl->Driver.RenderPrimitive = _swsetup_RenderPrimitive;
- tnl->Driver.PointsFunc = _swsetup_Points;
- tnl->Driver.LineFunc = _swsetup_Line;
- tnl->Driver.TriangleFunc = _swsetup_Triangle;
- tnl->Driver.QuadFunc = _swsetup_Quad;
- tnl->Driver.ResetLineStipple = _swrast_ResetLineStipple;
- tnl->Driver.RenderInterp = _swsetup_RenderInterp;
- tnl->Driver.RenderCopyPV = _swsetup_RenderCopyPV;
- tnl->Driver.RenderClippedLine = _swsetup_RenderClippedLine;
- tnl->Driver.RenderClippedPolygon = _swsetup_RenderClippedPolygon;
-
- (void) DitherValues; /* silenced unused var warning */
+/**
+ * Called by glViewport.
+ * This is a good time for us to poll the current X window size and adjust
+ * our ancillary (back color, depth, stencil, etc) buffers to match the
+ * current window size. Remember, we have no opportunity to respond to
+ * conventional X Resize/StructureNotify events since the X driver has no
+ * event loop. Thus, we poll.
+ * Note that this trick isn't fool-proof. If the application never calls
+ * glViewport, our notion of the current window size may be incorrect.
+ */
+static void
+xmesa_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+{
+ _mesa_ResizeBuffersMESA();
+}
+
+
+/**
+ * Initialize the device driver function table with the functions
+ * we implement in this driver.
+ */
+void
+xmesa_init_driver_functions( XMesaVisual xmvisual,
+ struct dd_function_table *driver )
+{
+ driver->GetString = get_string;
+ driver->UpdateState = xmesa_update_state;
+ driver->GetBufferSize = get_buffer_size;
+ driver->Flush = finish_or_flush;
+ driver->Finish = finish_or_flush;
+ driver->ClearIndex = clear_index;
+ driver->ClearColor = clear_color;
+ driver->IndexMask = index_mask;
+ driver->ColorMask = color_mask;
+ driver->Enable = enable;
+ driver->Clear = clear_buffers;
+ driver->ResizeBuffers = xmesa_resize_buffers;
+ driver->Viewport = xmesa_viewport;
+#ifndef XFree86Server
+ driver->CopyPixels = xmesa_CopyPixels;
+ if (xmvisual->undithered_pf == PF_8R8G8B &&
+ xmvisual->dithered_pf == PF_8R8G8B) {
+ driver->DrawPixels = xmesa_DrawPixels_8R8G8B;
+ }
+ else if (xmvisual->undithered_pf == PF_5R6G5B) {
+ driver->DrawPixels = xmesa_DrawPixels_5R6G5B;
+ }
+#endif
+ driver->TestProxyTexImage = test_proxy_teximage;
+#if SWTC
+ driver->ChooseTextureFormat = choose_tex_format;
+#else
+ (void) choose_tex_format;
+#endif
+}
+
+
+#define XMESA_NEW_POINT (_NEW_POINT | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+#define XMESA_NEW_LINE (_NEW_LINE | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+#define XMESA_NEW_TRIANGLE (_NEW_POLYGON | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
+
+
+/* Extend the software rasterizer with our line/point/triangle
+ * functions.
+ */
+void xmesa_register_swrast_functions( GLcontext *ctx )
+{
+ SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference(ctx);
+
+ dd->SetBuffer = xmesa_set_buffer;
+
+ swrast->choose_point = xmesa_choose_point;
+ swrast->choose_line = xmesa_choose_line;
+ swrast->choose_triangle = xmesa_choose_triangle;
+
+ swrast->invalidate_point |= XMESA_NEW_POINT;
+ swrast->invalidate_line |= XMESA_NEW_LINE;
+ swrast->invalidate_triangle |= XMESA_NEW_TRIANGLE;
}
projects / mesa.git / blobdiff