/* XXX don't use this, it doesn't dither correctly */
static void draw_points_ANY_pixmap( struct gl_context *ctx, const SWvertex *vert )
{
XMesaContext xmesa = XMESA_CONTEXT(ctx);
XMesaDisplay *dpy = xmesa->xm_visual->display;
XMesaDrawable buffer = xmesa->xm_buffer->buffer;
XMesaGC gc = xmesa->xm_buffer->gc;
if (xmesa->xm_visual->mesa_visual.RGBAflag) {
register int x, y;
const GLubyte *color = vert->color;
unsigned long pixel = xmesa_color_to_pixel( xmesa,
color[0], color[1],
color[2], color[3],
xmesa->pixelformat);
XMesaSetForeground( dpy, gc, pixel );
x = (GLint) vert->win[0];
y = YFLIP( xrb, (GLint) vert->win[1] );
XMesaDrawPoint( dpy, buffer, gc, x, y);
}
else {
/* Color index mode */
register int x, y;
XMesaSetForeground( dpy, gc, vert->index );
x = (GLint) vert->win[0];
y = YFLIP( xrb, (GLint) vert->win[1] );
XMesaDrawPoint( dpy, buffer, gc, x, y);
}
}
void
xmesa_put_tile_rgba(struct pipe_context *pipe, struct pipe_surface *ps,
uint x, uint y, uint w, uint h, const float *p)
{
struct xmesa_surface *xms = xmesa_surface(ps);
struct xmesa_renderbuffer *xrb = xms->xrb;
if (xrb) {
/* this is a front/back color buffer */
GLubyte tmp[MAX_WIDTH * 4];
GLuint i, j;
uint w0 = w;
GET_CURRENT_CONTEXT(ctx);
CLIP_TILE;
FLIP(y);
for (i = 0; i < h; i++) {
for (j = 0; j < w * 4; j++) {
UNCLAMPED_FLOAT_TO_UBYTE(tmp[j], p[j]);
}
xrb->St.Base.PutRow(ctx, &xrb->St.Base, w, x, y - i, tmp, NULL);
p += w0 * 4;
}
#if 0 /* debug: flush */
{
XMesaContext xm = XMESA_CONTEXT(ctx);
XSync(xm->display, 0);
}
#endif
}
else {
/* other softpipe surface */
softpipe_put_tile_rgba(ps, x, y, w, h, p);
}
}
/* Implements glColorMask() */
static void
color_mask(GLcontext *ctx,
GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
XMesaBuffer xmbuf;
const int xclass = xmesa->xm_visual->mesa_visual.visualType;
(void) amask;
if (ctx->DrawBuffer->Name != 0)
return;
xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) {
unsigned long m;
if (rmask && gmask && bmask) {
m = ((unsigned long)~0L);
}
else {
m = 0;
if (rmask) m |= GET_REDMASK(xmesa->xm_visual);
if (gmask) m |= GET_GREENMASK(xmesa->xm_visual);
if (bmask) m |= GET_BLUEMASK(xmesa->xm_visual);
}
XMesaSetPlaneMask( xmesa->display, xmbuf->cleargc, m );
XMesaSetPlaneMask( xmesa->display, xmbuf->gc, m );
}
}
/**
* 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
intelCopyPixels( GLcontext *ctx,
GLint srcx, GLint srcy, GLsizei width, GLsizei height,
GLint destx, GLint desty, GLenum type )
{
#if 0
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 (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
}
/*
* This is typically called when the window size changes and we need
* to reallocate the buffer's back/depth/stencil/accum buffers.
*/
PUBLIC void
XMesaResizeBuffers( XMesaBuffer b )
{
GET_CURRENT_CONTEXT(ctx);
XMesaContext xmctx = XMESA_CONTEXT(ctx);
if (!xmctx)
return;
xmesa_check_and_update_buffer_size(xmctx, b);
}
static void
clear_index( GLcontext *ctx, GLuint index )
{
if (ctx->DrawBuffer->Name == 0) {
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
xmesa->clearpixel = (unsigned long) index;
XMesaSetForeground( xmesa->display, xmbuf->cleargc, (unsigned long) index );
}
}
static void
finish_or_flush( struct gl_context *ctx )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (xmesa) {
mtx_lock(&_xmesa_lock);
XSync( xmesa->display, False );
mtx_unlock(&_xmesa_lock);
}
}
static void
finish_or_flush( struct gl_context *ctx )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (xmesa) {
_glthread_LOCK_MUTEX(_xmesa_lock);
XSync( xmesa->display, False );
_glthread_UNLOCK_MUTEX(_xmesa_lock);
}
}
static void
clear_8bit_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
GLint x, GLint y, GLint width, GLint height )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
GLint i;
for (i = 0; i < height; i++) {
GLubyte *ptr = PIXEL_ADDR1(xrb, x, y + i);
MEMSET( ptr, xmesa->clearpixel, width );
}
}
static void
clear_16bit_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
GLint x, GLint y, GLint width, GLint height)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
GLuint pixel = (GLuint) xmesa->clearpixel;
GLint i, j;
if (xmesa->swapbytes) {
pixel = ((pixel >> 8) & 0x00ff) | ((pixel << 8) & 0xff00);
}
XMesaContext XMesaGetCurrentContext( void )
{
GET_CURRENT_CONTEXT(ctx);
if (ctx) {
XMesaContext xmesa = XMESA_CONTEXT(ctx);
return xmesa;
}
else {
return 0;
}
}
static void
finish_or_flush( GLcontext *ctx )
{
#ifdef XFree86Server
/* NOT_NEEDED */
#else
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (xmesa) {
_glthread_LOCK_MUTEX(_xmesa_lock);
XSync( xmesa->display, False );
_glthread_UNLOCK_MUTEX(_xmesa_lock);
}
#endif
}
/* Set index mask ala glIndexMask */
static void
index_mask( GLcontext *ctx, GLuint mask )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
/* not sure this conditional is really needed */
if (xmbuf->backxrb && xmbuf->backxrb->pixmap) {
unsigned long m;
if (mask==0xffffffff) {
m = ((unsigned long)~0L);
}
else {
m = (unsigned long) mask;
}
XMesaSetPlaneMask( xmesa->display, xmbuf->cleargc, m );
}
}
/**
* Clear the front or back color buffer, if it's implemented with a pixmap.
*/
static void
clear_pixmap(GLcontext *ctx, struct xmesa_renderbuffer *xrb,
GLint x, GLint y, GLint width, GLint height)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
assert(xmbuf);
assert(xrb->pixmap);
assert(xmesa);
assert(xmesa->display);
assert(xrb->pixmap);
assert(xmbuf->cleargc);
XMesaFillRectangle( xmesa->display, xrb->pixmap, xmbuf->cleargc,
x, xrb->Base.Height - y - height,
width, height );
}
static void
clear_HPCR_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
GLint x, GLint y, GLint width, GLint height )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
GLint i;
for (i = y; i < y + height; i++) {
GLubyte *ptr = PIXEL_ADDR1( xrb, x, i );
int j;
const GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
if (i & 1) {
sptr += 16;
}
for (j = x; j < x + width; j++) {
*ptr = sptr[j&15];
ptr++;
}
}
}
/* Override the swrast point-selection function. Try to use one of
* our internal point functions, otherwise fall back to the standard
* swrast functions.
*/
void xmesa_choose_point( struct gl_context *ctx )
{
#if 0
XMesaContext xmesa = XMESA_CONTEXT(ctx);
SWcontext *swrast = SWRAST_CONTEXT(ctx);
if (ctx->RenderMode == GL_RENDER
&& ctx->Point.Size == 1.0F && !ctx->Point.SmoothFlag
&& swrast->_RasterMask == 0
&& ctx->Texture._MaxEnabledTexImageUnit == -1
&& xmesa->xm_buffer->buffer != XIMAGE) {
swrast->Point = draw_points_ANY_pixmap;
}
else {
_swrast_choose_point( ctx );
}
#else
_swrast_choose_point( ctx );
#endif
}
/**
* Draw fast, XOR line with XDrawLine in front color buffer.
* WARNING: this isn't fully OpenGL conformant because different pixels
* will be hit versus using the other line functions.
* Don't use the code in X server GLcore module since we need a wrapper
* for the XSetLineAttributes() function call.
*/
static void
xor_line(struct gl_context *ctx, const SWvertex *vert0, const SWvertex *vert1)
{
XMesaContext xmesa = XMESA_CONTEXT(ctx);
XMesaDisplay *dpy = xmesa->xm_visual->display;
XMesaGC gc = xmesa->xm_buffer->gc;
GET_XRB(xrb);
unsigned long pixel = xmesa_color_to_pixel(ctx,
vert1->color[0], vert1->color[1],
vert1->color[2], vert1->color[3],
xmesa->pixelformat);
int x0 = (GLint) vert0->attrib[VARYING_SLOT_POS][0];
int y0 = YFLIP(xrb, (GLint) vert0->attrib[VARYING_SLOT_POS][1]);
int x1 = (GLint) vert1->attrib[VARYING_SLOT_POS][0];
int y1 = YFLIP(xrb, (GLint) vert1->attrib[VARYING_SLOT_POS][1]);
XMesaSetForeground(dpy, gc, pixel);
XMesaSetFunction(dpy, gc, GXxor);
XSetLineAttributes(dpy, gc, (int) ctx->Line.Width,
LineSolid, CapButt, JoinMiter);
XDrawLine(dpy, xrb->pixmap, gc, x0, y0, x1, y1);
XMesaSetFunction(dpy, gc, GXcopy); /* this gc is used elsewhere */
}
static void
clear_color( GLcontext *ctx, const GLfloat color[4] )
{
if (ctx->DrawBuffer->Name == 0) {
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
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( ctx,
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, xmbuf->cleargc,
xmesa->clearpixel );
_glthread_UNLOCK_MUTEX(_xmesa_lock);
}
}
/*
* Convert an RGBA color to a pixel value.
*/
unsigned long
xmesa_color_to_pixel(struct gl_context *ctx,
GLubyte r, GLubyte g, GLubyte b, GLubyte a,
GLuint pixelFormat)
{
XMesaContext xmesa = XMESA_CONTEXT(ctx);
switch (pixelFormat) {
case PF_Truecolor:
{
unsigned long p;
PACK_TRUECOLOR( p, r, g, b );
return p;
}
case PF_8A8B8G8R:
return PACK_8A8B8G8R( r, g, b, a );
case PF_8A8R8G8B:
return PACK_8A8R8G8B( r, g, b, a );
case PF_8R8G8B:
/* fall through */
case PF_8R8G8B24:
return PACK_8R8G8B( r, g, b );
case PF_5R6G5B:
return PACK_5R6G5B( r, g, b );
case PF_Dither_True:
/* fall through */
case PF_Dither_5R6G5B:
{
unsigned long p;
PACK_TRUEDITHER(p, 1, 0, r, g, b);
return p;
}
default:
_mesa_problem(ctx, "Bad pixel format in xmesa_color_to_pixel");
}
return 0;
}
/**
* Return pointer to line drawing function, or NULL if we should use a
* swrast fallback.
*/
static swrast_line_func
get_line_func(struct gl_context *ctx)
{
#if CHAN_BITS == 8
SWcontext *swrast = SWRAST_CONTEXT(ctx);
XMesaContext xmesa = XMESA_CONTEXT(ctx);
const struct xmesa_renderbuffer *xrb;
if ((ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_FRONT_LEFT) &&
(ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_BACK_LEFT))
return (swrast_line_func) NULL;
if (ctx->RenderMode != GL_RENDER) return (swrast_line_func) NULL;
if (ctx->Line.SmoothFlag) return (swrast_line_func) NULL;
if (ctx->Texture._MaxEnabledTexImageUnit != -1) return (swrast_line_func) NULL;
if (ctx->Light.ShadeModel != GL_FLAT) return (swrast_line_func) NULL;
if (ctx->Line.StippleFlag) return (swrast_line_func) NULL;
if (swrast->_RasterMask & MULTI_DRAW_BIT) return (swrast_line_func) NULL;
xrb = xmesa_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]);
if (xrb->ximage
&& swrast->_RasterMask==DEPTH_BIT
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_TRUE
&& ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS
&& ctx->Line.Width==1.0F) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
return flat_TRUECOLOR_z_line;
case PF_8A8B8G8R:
return flat_8A8B8G8R_z_line;
case PF_8A8R8G8B:
return flat_8A8R8G8B_z_line;
case PF_8R8G8B:
return flat_8R8G8B_z_line;
case PF_8R8G8B24:
return flat_8R8G8B24_z_line;
case PF_5R6G5B:
return flat_5R6G5B_z_line;
case PF_Dither_5R6G5B:
return flat_DITHER_5R6G5B_z_line;
default:
return (swrast_line_func)NULL;
}
}
if (xrb->ximage
&& swrast->_RasterMask==0
&& ctx->Line.Width==1.0F) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
return flat_TRUECOLOR_line;
case PF_8A8B8G8R:
return flat_8A8B8G8R_line;
case PF_8A8R8G8B:
return flat_8A8R8G8B_line;
case PF_8R8G8B:
return flat_8R8G8B_line;
case PF_8R8G8B24:
return flat_8R8G8B24_line;
case PF_5R6G5B:
return flat_5R6G5B_line;
case PF_Dither_5R6G5B:
return flat_DITHER_5R6G5B_line;
default:
return (swrast_line_func)NULL;
}
}
if (ctx->DrawBuffer->_NumColorDrawBuffers == 1
&& ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT
&& swrast->_RasterMask == LOGIC_OP_BIT
&& ctx->Color.LogicOp == GL_XOR
&& !ctx->Line.StippleFlag
&& !ctx->Line.SmoothFlag) {
return xor_line;
}
#endif /* CHAN_BITS == 8 */
return (swrast_line_func) NULL;
}
static swrast_tri_func get_triangle_func( GLcontext *ctx )
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
XMesaContext xmesa = XMESA_CONTEXT(ctx);
int depth = GET_VISUAL_DEPTH(xmesa->xm_visual);
GET_XRB(xrb);
#ifdef DEBUG
triFuncName = NULL;
#endif
if ((ctx->DrawBuffer->_ColorDrawBufferMask[0]
& (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) == 0)
return (swrast_tri_func) NULL;
if (ctx->RenderMode != GL_RENDER) return (swrast_tri_func) NULL;
if (ctx->Polygon.SmoothFlag) return (swrast_tri_func) NULL;
if (ctx->Texture._EnabledUnits) return (swrast_tri_func) NULL;
if (swrast->_RasterMask & MULTI_DRAW_BIT) return (swrast_tri_func) NULL;
if (ctx->Polygon.CullFlag &&
ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
return (swrast_tri_func) NULL;
if (xrb->ximage) {
if ( ctx->Light.ShadeModel==GL_SMOOTH
&& swrast->_RasterMask==DEPTH_BIT
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_TRUE
&& ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS
&& ctx->Polygon.StippleFlag==GL_FALSE) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
USE(smooth_TRUECOLOR_z_triangle);
case PF_8A8B8G8R:
USE(smooth_8A8B8G8R_z_triangle);
case PF_8A8R8G8B:
USE(smooth_8A8R8G8B_z_triangle);
case PF_8R8G8B:
USE(smooth_8R8G8B_z_triangle);
case PF_8R8G8B24:
USE(smooth_8R8G8B24_z_triangle);
case PF_Dither_True:
USE(smooth_TRUEDITHER_z_triangle);
case PF_5R6G5B:
USE(smooth_5R6G5B_z_triangle);
case PF_Dither_5R6G5B:
USE(smooth_DITHER_5R6G5B_z_triangle);
case PF_HPCR:
USE(smooth_HPCR_z_triangle);
case PF_Dither:
if (depth == 8)
USE(smooth_DITHER8_z_triangle);
else
USE(smooth_DITHER_z_triangle);
case PF_Lookup:
if (depth == 8)
USE(smooth_LOOKUP8_z_triangle);
else
return (swrast_tri_func) NULL;
default:
return (swrast_tri_func) NULL;
}
}
if ( ctx->Light.ShadeModel==GL_FLAT
&& swrast->_RasterMask==DEPTH_BIT
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_TRUE
&& ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS
&& ctx->Polygon.StippleFlag==GL_FALSE) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
USE(flat_TRUECOLOR_z_triangle);
case PF_8A8B8G8R:
USE(flat_8A8B8G8R_z_triangle);
case PF_8A8R8G8B:
USE(flat_8A8R8G8B_z_triangle);
case PF_8R8G8B:
USE(flat_8R8G8B_z_triangle);
case PF_8R8G8B24:
USE(flat_8R8G8B24_z_triangle);
case PF_Dither_True:
USE(flat_TRUEDITHER_z_triangle);
case PF_5R6G5B:
USE(flat_5R6G5B_z_triangle);
case PF_Dither_5R6G5B:
USE(flat_DITHER_5R6G5B_z_triangle);
case PF_HPCR:
USE(flat_HPCR_z_triangle);
case PF_Dither:
if (depth == 8)
USE(flat_DITHER8_z_triangle);
else
USE(flat_DITHER_z_triangle);
case PF_Lookup:
if (depth == 8)
USE(flat_LOOKUP8_z_triangle);
else
return (swrast_tri_func) NULL;
default:
return (swrast_tri_func) NULL;
}
}
if ( swrast->_RasterMask==0 /* no depth test */
&& ctx->Light.ShadeModel==GL_SMOOTH
&& ctx->Polygon.StippleFlag==GL_FALSE) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
USE(smooth_TRUECOLOR_triangle);
case PF_8A8B8G8R:
USE(smooth_8A8B8G8R_triangle);
case PF_8A8R8G8B:
USE(smooth_8A8R8G8B_triangle);
case PF_8R8G8B:
USE(smooth_8R8G8B_triangle);
case PF_8R8G8B24:
USE(smooth_8R8G8B24_triangle);
case PF_Dither_True:
USE(smooth_TRUEDITHER_triangle);
case PF_5R6G5B:
USE(smooth_5R6G5B_triangle);
case PF_Dither_5R6G5B:
USE(smooth_DITHER_5R6G5B_triangle);
case PF_HPCR:
USE(smooth_HPCR_triangle);
case PF_Dither:
if (depth == 8)
USE(smooth_DITHER8_triangle);
else
USE(smooth_DITHER_triangle);
case PF_Lookup:
if (depth == 8)
USE(smooth_LOOKUP8_triangle);
else
return (swrast_tri_func) NULL;
default:
return (swrast_tri_func) NULL;
}
}
if ( swrast->_RasterMask==0 /* no depth test */
&& ctx->Light.ShadeModel==GL_FLAT
&& ctx->Polygon.StippleFlag==GL_FALSE) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
USE(flat_TRUECOLOR_triangle);
case PF_Dither_True:
USE(flat_TRUEDITHER_triangle);
case PF_8A8B8G8R:
USE(flat_8A8B8G8R_triangle);
case PF_8A8R8G8B:
USE(flat_8A8R8G8B_triangle);
case PF_8R8G8B:
USE(flat_8R8G8B_triangle);
case PF_8R8G8B24:
USE(flat_8R8G8B24_triangle);
case PF_5R6G5B:
USE(flat_5R6G5B_triangle);
case PF_Dither_5R6G5B:
USE(flat_DITHER_5R6G5B_triangle);
case PF_HPCR:
USE(flat_HPCR_triangle);
case PF_Dither:
if (depth == 8)
USE(flat_DITHER8_triangle);
else
USE(flat_DITHER_triangle);
case PF_Lookup:
if (depth == 8)
USE(flat_LOOKUP8_triangle);
else
return (swrast_tri_func) NULL;
default:
return (swrast_tri_func) NULL;
}
}
return (swrast_tri_func) NULL;
}
else {
/* draw to pixmap */
return (swrast_tri_func) NULL;
}
}
/**
* Return pointer to line drawing function, or NULL if we should use a
* swrast fallback.
*/
static swrast_tri_func
get_triangle_func(struct gl_context *ctx)
{
#if CHAN_BITS == 8
SWcontext *swrast = SWRAST_CONTEXT(ctx);
XMesaContext xmesa = XMESA_CONTEXT(ctx);
const struct xmesa_renderbuffer *xrb;
#ifdef DEBUG
triFuncName = NULL;
#endif
/* trivial fallback tests */
if ((ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_FRONT_LEFT) &&
(ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_BACK_LEFT))
return (swrast_tri_func) NULL;
if (ctx->RenderMode != GL_RENDER)
return (swrast_tri_func) NULL;
if (ctx->Polygon.SmoothFlag)
return (swrast_tri_func) NULL;
if (ctx->Texture._EnabledUnits)
return (swrast_tri_func) NULL;
if (swrast->_RasterMask & MULTI_DRAW_BIT)
return (swrast_tri_func) NULL;
if (ctx->Polygon.CullFlag &&
ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
return (swrast_tri_func) NULL;
xrb = xmesa_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]);
if (xrb->ximage) {
if ( ctx->Light.ShadeModel==GL_SMOOTH
&& swrast->_RasterMask==DEPTH_BIT
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_TRUE
&& ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS
&& ctx->Polygon.StippleFlag==GL_FALSE) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
USE(smooth_TRUECOLOR_z_triangle);
case PF_8A8B8G8R:
USE(smooth_8A8B8G8R_z_triangle);
case PF_8A8R8G8B:
USE(smooth_8A8R8G8B_z_triangle);
case PF_8R8G8B:
USE(smooth_8R8G8B_z_triangle);
case PF_8R8G8B24:
USE(smooth_8R8G8B24_z_triangle);
case PF_Dither_True:
USE(smooth_TRUEDITHER_z_triangle);
case PF_5R6G5B:
USE(smooth_5R6G5B_z_triangle);
case PF_Dither_5R6G5B:
USE(smooth_DITHER_5R6G5B_z_triangle);
default:
return (swrast_tri_func) NULL;
}
}
if ( ctx->Light.ShadeModel==GL_FLAT
&& swrast->_RasterMask==DEPTH_BIT
&& ctx->Depth.Func==GL_LESS
&& ctx->Depth.Mask==GL_TRUE
&& ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS
&& ctx->Polygon.StippleFlag==GL_FALSE) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
USE(flat_TRUECOLOR_z_triangle);
case PF_8A8B8G8R:
USE(flat_8A8B8G8R_z_triangle);
case PF_8A8R8G8B:
USE(flat_8A8R8G8B_z_triangle);
case PF_8R8G8B:
USE(flat_8R8G8B_z_triangle);
case PF_8R8G8B24:
USE(flat_8R8G8B24_z_triangle);
case PF_Dither_True:
USE(flat_TRUEDITHER_z_triangle);
case PF_5R6G5B:
USE(flat_5R6G5B_z_triangle);
case PF_Dither_5R6G5B:
USE(flat_DITHER_5R6G5B_z_triangle);
default:
return (swrast_tri_func) NULL;
}
}
if ( swrast->_RasterMask==0 /* no depth test */
&& ctx->Light.ShadeModel==GL_SMOOTH
&& ctx->Polygon.StippleFlag==GL_FALSE) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
USE(smooth_TRUECOLOR_triangle);
case PF_8A8B8G8R:
USE(smooth_8A8B8G8R_triangle);
case PF_8A8R8G8B:
USE(smooth_8A8R8G8B_triangle);
case PF_8R8G8B:
USE(smooth_8R8G8B_triangle);
case PF_8R8G8B24:
USE(smooth_8R8G8B24_triangle);
case PF_Dither_True:
USE(smooth_TRUEDITHER_triangle);
case PF_5R6G5B:
USE(smooth_5R6G5B_triangle);
case PF_Dither_5R6G5B:
USE(smooth_DITHER_5R6G5B_triangle);
default:
return (swrast_tri_func) NULL;
}
}
if ( swrast->_RasterMask==0 /* no depth test */
&& ctx->Light.ShadeModel==GL_FLAT
&& ctx->Polygon.StippleFlag==GL_FALSE) {
switch (xmesa->pixelformat) {
case PF_Truecolor:
USE(flat_TRUECOLOR_triangle);
case PF_Dither_True:
USE(flat_TRUEDITHER_triangle);
case PF_8A8B8G8R:
USE(flat_8A8B8G8R_triangle);
case PF_8A8R8G8B:
USE(flat_8A8R8G8B_triangle);
case PF_8R8G8B:
USE(flat_8R8G8B_triangle);
case PF_8R8G8B24:
USE(flat_8R8G8B24_triangle);
case PF_5R6G5B:
USE(flat_5R6G5B_triangle);
case PF_Dither_5R6G5B:
USE(flat_DITHER_5R6G5B_triangle);
default:
return (swrast_tri_func) NULL;
}
}
}
#endif /* CHAN_BITS == 8 */
return (swrast_tri_func) NULL;
}