static void ffbSWRenderFinish(GLcontext *ctx)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
UNLOCK_HARDWARE(fmesa);
fmesa->hw_locked = 0;
}
static void ffb_dd_line( GLcontext *ctx, GLuint e0, GLuint e1 )
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
ffb_vertex *v0 = &fmesa->verts[e0];
ffb_vertex *v1 = &fmesa->verts[e1];
fmesa->draw_line( ctx, v0, v1 );
}
void ffbChooseLineState(GLcontext *ctx)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
TNLcontext *tnl = TNL_CONTEXT(ctx);
GLuint flags = ctx->_TriangleCaps;
GLuint ind = 0;
tnl->Driver.Render.Line = ffb_dd_line;
if (flags & DD_FLATSHADE)
ind |= FFB_LINE_FLAT_BIT;
if ((flags & DD_LINE_STIPPLE) != 0 &&
fmesa->lpat == FFB_LPAT_BAD) {
fmesa->draw_line = ffb_fallback_line;
return;
}
/* If blending or the alpha test is enabled we need to
* provide alpha components to the chip, else we can
* do without it and thus feed vertex data to the chip
* more efficiently.
*/
if (ctx->Color.BlendEnabled || ctx->Color.AlphaEnabled)
ind |= FFB_LINE_ALPHA_BIT;
fmesa->draw_line = ffb_line_tab[ind];
}
static void ffbDDBuildVertices(GLcontext *ctx, GLuint start, GLuint count,
GLuint newinputs)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
newinputs |= fmesa->setupnewinputs;
fmesa->setupnewinputs = 0;
if (!newinputs)
return;
if (newinputs & VERT_BIT_CLIP) {
setup_tab[fmesa->setupindex].emit(ctx, start, count);
} else {
GLuint ind = 0;
if (newinputs & VERT_BIT_COLOR0)
ind |= (FFB_VB_RGBA_BIT | FFB_VB_TWOSIDE_BIT);
ind &= fmesa->setupindex;
if (ind)
setup_tab[ind].emit(ctx, start, count);
}
}
static const GLubyte *ffbDDGetString(GLcontext *ctx, GLenum name)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
static char buffer[128];
switch (name) {
case GL_VENDOR:
return (GLubyte *) "David S. Miller";
case GL_RENDERER:
sprintf(buffer, "Mesa DRI FFB " FFB_DATE);
if (fmesa->ffb_sarea->flags & FFB_DRI_FFB2)
strncat(buffer, " FFB2", 5);
if (fmesa->ffb_sarea->flags & FFB_DRI_FFB2PLUS)
strncat(buffer, " FFB2PLUS", 9);
if (fmesa->ffb_sarea->flags & FFB_DRI_PAC1)
strncat(buffer, " PAC1", 5);
if (fmesa->ffb_sarea->flags & FFB_DRI_PAC2)
strncat(buffer, " PAC2", 5);
#ifdef USE_SPARC_ASM
strncat(buffer, " Sparc", 6);
#endif
return (GLubyte *) buffer;
default:
return NULL;
};
}
void ffbFreeVB( GLcontext *ctx )
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
if (fmesa->verts) {
ALIGN_FREE(fmesa->verts);
fmesa->verts = 0;
}
}
static void ffbDDFinish(GLcontext *ctx)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
LOCK_HARDWARE(fmesa);
FFBWait(fmesa, fmesa->regs);
UNLOCK_HARDWARE(fmesa);
}
static void ffbBufferSize(GLframebuffer *buffer, GLuint *width, GLuint *height)
{
GET_CURRENT_CONTEXT(ctx);
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
LOCK_HARDWARE(fmesa);
*width = fmesa->driDrawable->w;
*height = fmesa->driDrawable->h;
UNLOCK_HARDWARE(fmesa);
}
/* Even when doing full software rendering we need to
* wrap render{start,finish} so that the hardware is kept
* in sync (because multipass rendering changes the write
* buffer etc.)
*/
static void ffbSWRenderStart(GLcontext *ctx)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
LOCK_HARDWARE(fmesa);
fmesa->hw_locked = 1;
if (fmesa->state_dirty != 0)
ffbSyncHardware(fmesa);
}
void ffbChooseTriangleState(GLcontext *ctx)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
GLuint flags = ctx->_TriangleCaps;
GLuint ind = 0;
if (flags & DD_TRI_SMOOTH) {
fmesa->draw_tri = ffb_fallback_triangle;
fmesa->draw_quad = ffb_fallback_quad;
return;
}
if (flags & DD_FLATSHADE)
ind |= FFB_TRI_FLAT_BIT;
if (ctx->Polygon.CullFlag) {
if (ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) {
fmesa->draw_tri = ffb_nodraw_triangle;
fmesa->draw_quad = ffb_nodraw_quad;
return;
}
ind |= FFB_TRI_CULL_BIT;
ffb_update_cullsign(ctx);
} else
FFB_CONTEXT(ctx)->backface_sign = 0;
/* If blending or the alpha test is enabled we need to
* provide alpha components to the chip, else we can
* do without it and thus feed vertex data to the chip
* more efficiently.
*/
if (ctx->Color.BlendEnabled || ctx->Color.AlphaEnabled)
ind |= FFB_TRI_ALPHA_BIT;
fmesa->draw_tri = ffb_tri_tab[ind];
fmesa->draw_quad = ffb_quad_tab[ind];
}
static void ffbRenderPrimitive(GLcontext *ctx, GLenum prim)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
GLuint rprim = reduced_prim[prim];
fmesa->render_primitive = prim;
if (rprim == GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED))
return;
if (fmesa->raster_primitive != rprim) {
ffbRasterPrimitive( ctx, rprim );
}
}
static void ffb_copy_pv_oneside(GLcontext *ctx, GLuint edst, GLuint esrc)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
ffb_vertex *dst = &fmesa->verts[edst];
ffb_vertex *src = &fmesa->verts[esrc];
#ifdef VB_DEBUG
fprintf(stderr, "ffb_copy_pv_oneside: edst(%d) esrc(%d)\n", edst, esrc);
#endif
dst->color[0].alpha = src->color[0].alpha;
dst->color[0].red = src->color[0].red;
dst->color[0].green = src->color[0].green;
dst->color[0].blue = src->color[0].blue;
}
static void FFBWriteDepthPixels( GLcontext *ctx,
struct gl_renderbuffer *rb,
GLuint n,
const GLint x[],
const GLint y[],
const void *values,
const GLubyte mask[] )
{
const GLuint *depth = (const GLuint *) values;
#ifdef DEPTH_TRACE
fprintf(stderr, "FFBWriteDepthPixels: n(%d)\n", (int) n);
#endif
if (ctx->Depth.Mask) {
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = fmesa->driDrawable;
char *zbase;
GLuint i;
if (!fmesa->hw_locked)
LOCK_HARDWARE(fmesa);
FFBFifo(fmesa, 2);
fmesa->regs->fbc = (FFB_FBC_WB_C | FFB_FBC_ZE_ON |
FFB_FBC_YE_OFF | FFB_FBC_RGBE_OFF);
fmesa->regs->ppc = FFB_PPC_ZS_VAR;
fmesa->ffbScreen->rp_active = 1;
FFBWait(fmesa, fmesa->regs);
zbase = ((char *)fmesa->sfb32 +
(dPriv->x << 2) + (dPriv->y << 13));
for (i = 0; i < n; i++) {
GLint y1 = (dPriv->h - y[i]);
GLint x1 = x[i];
GLuint *zptr;
zptr = (GLuint *)
(zbase + (x1 << 2) + (y1 << 13));
if (mask[i])
*zptr = Z_FROM_MESA(depth[i]);
}
FFBFifo(fmesa, 2);
fmesa->regs->fbc = fmesa->fbc;
fmesa->regs->ppc = fmesa->ppc;
fmesa->ffbScreen->rp_active = 1;
if (!fmesa->hw_locked)
UNLOCK_HARDWARE(fmesa);
}
}
void ffbInitVB( GLcontext *ctx )
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
GLuint size = TNL_CONTEXT(ctx)->vb.Size;
fmesa->verts = (ffb_vertex *)ALIGN_MALLOC(size * sizeof(ffb_vertex), 32);
{
static int firsttime = 1;
if (firsttime) {
init_setup_tab();
firsttime = 0;
}
}
}
static void FFBWriteDepthSpan( GLcontext *ctx,
struct gl_renderbuffer *rb,
GLuint n, GLint x, GLint y,
const void *values,
const GLubyte mask[] )
{
const GLuint *depth = (const GLuint *) values;
#ifdef DEPTH_TRACE
fprintf(stderr, "FFBWriteDepthSpan: n(%d) x(%d) y(%d)\n",
(int) n, x, y);
#endif
if (ctx->Depth.Mask) {
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = fmesa->driDrawable;
GLuint *zptr;
GLuint i;
if (!fmesa->hw_locked)
LOCK_HARDWARE(fmesa);
FFBFifo(fmesa, 2);
fmesa->regs->fbc = (FFB_FBC_WB_C | FFB_FBC_ZE_ON |
FFB_FBC_YE_OFF | FFB_FBC_RGBE_OFF);
fmesa->regs->ppc = FFB_PPC_ZS_VAR;
FFBWait(fmesa, fmesa->regs);
y = (dPriv->h - y);
zptr = (GLuint *)
((char *)fmesa->sfb32 +
((dPriv->x + x) << 2) +
((dPriv->y + y) << 13));
for (i = 0; i < n; i++) {
if (mask[i]) {
*zptr = Z_FROM_MESA(depth[i]);
}
zptr++;
}
FFBFifo(fmesa, 2);
fmesa->regs->fbc = fmesa->fbc;
fmesa->regs->ppc = fmesa->ppc;
fmesa->ffbScreen->rp_active = 1;
if (!fmesa->hw_locked)
UNLOCK_HARDWARE(fmesa);
}
}
static void ffbRenderClippedPolygon(GLcontext *ctx, const GLuint *elts, GLuint n)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
GLuint prim = fmesa->render_primitive;
/* Render the new vertices as an unclipped polygon. */
{
GLuint *tmp = VB->Elts;
VB->Elts = (GLuint *)elts;
tnl->Driver.Render.PrimTabElts[GL_POLYGON](ctx, 0, n, PRIM_BEGIN|PRIM_END);
VB->Elts = tmp;
}
/* Restore the render primitive. */
if (prim != GL_POLYGON)
tnl->Driver.Render.PrimitiveNotify(ctx, prim);
}
static void FFBReadDepthPixels( GLcontext *ctx,
struct gl_renderbuffer *rb,
GLuint n,
const GLint x[], const GLint y[],
void *values )
{
GLuint *depth = (GLuint *) values;
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = fmesa->driDrawable;
char *zbase;
GLuint i;
#ifdef DEPTH_TRACE
fprintf(stderr, "FFBReadDepthPixels: n(%d)\n", (int) n);
#endif
if (!fmesa->hw_locked)
LOCK_HARDWARE(fmesa);
FFBFifo(fmesa, 1);
fmesa->regs->fbc = FFB_FBC_RB_C;
fmesa->ffbScreen->rp_active = 1;
FFBWait(fmesa, fmesa->regs);
zbase = ((char *)fmesa->sfb32 +
(dPriv->x << 2) + (dPriv->y << 13));
for (i = 0; i < n; i++) {
GLint y1 = (dPriv->h - y[i]);
GLint x1 = x[i];
GLuint *zptr;
zptr = (GLuint *)
(zbase + (x1 << 2) + (y1 << 13));
depth[i] = Z_TO_MESA(*zptr);
}
FFBFifo(fmesa, 1);
fmesa->regs->fbc = fmesa->fbc;
fmesa->ffbScreen->rp_active = 1;
if (!fmesa->hw_locked)
UNLOCK_HARDWARE(fmesa);
}
static void ffb_update_cullsign(GLcontext *ctx)
{
GLfloat backface_sign = 1;
switch (ctx->Polygon.CullFaceMode) {
case GL_BACK:
if (ctx->Polygon.FrontFace==GL_CCW)
backface_sign = -1;
break;
case GL_FRONT:
if (ctx->Polygon.FrontFace!=GL_CCW)
backface_sign = -1;
break;
default:
break;
};
FFB_CONTEXT(ctx)->backface_sign = backface_sign;
}
static void ffbRunPipeline(GLcontext *ctx)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
if (fmesa->bad_fragment_attrs == 0 &&
fmesa->new_gl_state) {
if (fmesa->new_gl_state & _FFB_NEW_TRIANGLE)
ffbChooseTriangleState(ctx);
if (fmesa->new_gl_state & _FFB_NEW_LINE)
ffbChooseLineState(ctx);
if (fmesa->new_gl_state & _FFB_NEW_POINT)
ffbChoosePointState(ctx);
if (fmesa->new_gl_state & _FFB_NEW_RENDER)
ffbChooseRenderState(ctx);
if (fmesa->new_gl_state & _FFB_NEW_VERTEX)
ffbChooseVertexState(ctx);
fmesa->new_gl_state = 0;
}
_tnl_run_pipeline(ctx);
}
static void FFBReadDepthSpan( GLcontext *ctx,
struct gl_renderbuffer *rb,
GLuint n, GLint x, GLint y,
void *values )
{
GLuint *depth = (GLuint *) values;
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = fmesa->driDrawable;
GLuint *zptr;
GLuint i;
#ifdef DEPTH_TRACE
fprintf(stderr, "FFBReadDepthSpan: n(%d) x(%d) y(%d)\n",
(int) n, x, y);
#endif
if (!fmesa->hw_locked)
LOCK_HARDWARE(fmesa);
FFBFifo(fmesa, 1);
fmesa->regs->fbc = FFB_FBC_RB_C;
fmesa->ffbScreen->rp_active = 1;
FFBWait(fmesa, fmesa->regs);
y = (dPriv->h - y);
zptr = (GLuint *)
((char *)fmesa->sfb32 +
((dPriv->x + x) << 2) +
((dPriv->y + y) << 13));
for (i = 0; i < n; i++) {
depth[i] = Z_TO_MESA(*zptr);
zptr++;
}
FFBFifo(fmesa, 1);
fmesa->regs->fbc = fmesa->fbc;
fmesa->ffbScreen->rp_active = 1;
if (!fmesa->hw_locked)
UNLOCK_HARDWARE(fmesa);
}
/* Build a SWvertex from a hardware vertex. */
static void ffb_translate_vertex(GLcontext *ctx, const ffb_vertex *src,
SWvertex *dst)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
GLfloat *m = ctx->Viewport._WindowMap.m;
const GLfloat sx = m[0];
const GLfloat sy = m[5];
const GLfloat sz = m[10];
const GLfloat tx = m[12];
const GLfloat ty = m[13];
const GLfloat tz = m[14];
dst->win[0] = sx * src->x + tx;
dst->win[1] = sy * src->y + ty;
dst->win[2] = sz * src->z + tz;
dst->win[3] = 1.0;
dst->color[0] = FFB_UBYTE_FROM_COLOR(src->color[0].red);
dst->color[1] = FFB_UBYTE_FROM_COLOR(src->color[0].green);
dst->color[2] = FFB_UBYTE_FROM_COLOR(src->color[0].blue);
dst->color[3] = FFB_UBYTE_FROM_COLOR(src->color[0].alpha);
}
void ffbChooseVertexState( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
int ind = FFB_VB_XYZ_BIT | FFB_VB_RGBA_BIT;
if (ctx->_TriangleCaps & DD_TRI_LIGHT_TWOSIDE)
ind |= FFB_VB_TWOSIDE_BIT;
#ifdef VB_DEBUG
ffbPrintSetupFlags("ffb: full setup function", ind);
#endif
fmesa->setupindex = ind;
tnl->Driver.Render.BuildVertices = ffbDDBuildVertices;
tnl->Driver.Render.Interp = setup_tab[ind].interp;
if (ind & FFB_VB_TWOSIDE_BIT)
tnl->Driver.Render.CopyPV = ffb_copy_pv_twoside;
else
tnl->Driver.Render.CopyPV = ffb_copy_pv_oneside;
}
void ffbFallback( GLcontext *ctx, GLuint bit, GLboolean mode )
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
TNLcontext *tnl = TNL_CONTEXT(ctx);
GLuint oldfallback = fmesa->bad_fragment_attrs;
if (mode) {
fmesa->bad_fragment_attrs |= bit;
if (oldfallback == 0) {
/* FFB_FIREVERTICES(fmesa); */
_swsetup_Wakeup( ctx );
if (fmesa->debugFallbacks)
fprintf(stderr, "FFB begin software fallback: 0x%x %s\n",
bit, getFallbackString(bit));
}
} else {
fmesa->bad_fragment_attrs &= ~bit;
if (oldfallback == bit) {
_swrast_flush( ctx );
tnl->Driver.Render.Start = ffbRenderStart;
tnl->Driver.Render.PrimitiveNotify = ffbRenderPrimitive;
tnl->Driver.Render.Finish = ffbRenderFinish;
fmesa->new_gl_state = ~0;
/* Just re-choose everything:
*/
ffbChooseVertexState(ctx);
ffbChooseRenderState(ctx);
ffbChooseTriangleState(ctx);
ffbChooseLineState(ctx);
ffbChoosePointState(ctx);
if (fmesa->debugFallbacks)
fprintf(stderr, "FFB end software fallback: 0x%x %s\n",
bit, getFallbackString(bit));
}
}
}
static void
ffb_bitmap(GLcontext *ctx, GLint px, GLint py,
GLsizei width, GLsizei height,
const struct gl_pixelstore_attrib *unpack,
const GLubyte *bitmap)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
ffb_fbcPtr ffb = fmesa->regs;
__DRIdrawablePrivate *dPriv = fmesa->driDrawable;
unsigned int ppc, pixel;
GLint row, col, row_stride;
const GLubyte *src;
char *buf;
if (fmesa->bad_fragment_attrs != 0)
_swrast_Bitmap(ctx, px, py, width,
height, unpack, bitmap);
pixel = (((((GLuint)(ctx->Current.RasterColor[0] * 255.0f)) & 0xff) << 0) |
((((GLuint)(ctx->Current.RasterColor[1] * 255.0f)) & 0xff) << 8) |
((((GLuint)(ctx->Current.RasterColor[2] * 255.0f)) & 0xff) << 16) |
((((GLuint)(ctx->Current.RasterColor[3] * 255.0f)) & 0xff) << 24));
#ifdef FFB_BITMAP_TRACE
fprintf(stderr, "ffb_bitmap: ppc(%08x) fbc(%08x) cmp(%08x) pixel(%08x)\n",
fmesa->ppc, fmesa->fbc, fmesa->cmp, pixel);
#endif
LOCK_HARDWARE(fmesa);
fmesa->hw_locked = 1;
if (fmesa->state_dirty)
ffbSyncHardware(fmesa);
ppc = fmesa->ppc;
FFBFifo(fmesa, 4);
ffb->ppc = ((ppc &
~(FFB_PPC_TBE_MASK | FFB_PPC_ZS_MASK | FFB_PPC_CS_MASK | FFB_PPC_XS_MASK))
| (FFB_PPC_TBE_TRANSPARENT | FFB_PPC_ZS_CONST | FFB_PPC_CS_CONST |
(ctx->Color.BlendEnabled ? FFB_PPC_XS_CONST : FFB_PPC_XS_WID)));
ffb->constz = ((GLuint) (ctx->Current.RasterPos[2] * 0x0fffffff));
ffb->fg = pixel;
ffb->fontinc = (0 << 16) | 32;
buf = (char *)(fmesa->sfb32 + (dPriv->x << 2) + (dPriv->y << 13));
row_stride = (unpack->Alignment * CEILING(width, 8 * unpack->Alignment));
src = (const GLubyte *) (bitmap +
(unpack->SkipRows * row_stride) +
(unpack->SkipPixels / 8));
if (unpack->LsbFirst == GL_TRUE) {
for (row = 0; row < height; row++, src += row_stride) {
const GLubyte *row_src = src;
GLuint base_x, base_y;
base_x = dPriv->x + px;
base_y = dPriv->y + (dPriv->h - (py + row));
FFBFifo(fmesa, 1);
ffb->fontxy = (base_y << 16) | base_x;
for (col = 0; col < width; col += 32, row_src += 4) {
GLint bitnum, font_w = (width - col);
GLuint font_data;
if (font_w > 32)
font_w = 32;
font_data = 0;
for (bitnum = 0; bitnum < 32; bitnum++) {
const GLubyte val = row_src[bitnum >> 3];
if (val & (1 << (bitnum & (8 - 1))))
font_data |= (1 << (31 - bitnum));
}
FFBFifo(fmesa, 2);
ffb->fontw = font_w;
ffb->font = font_data;
}
}
} else {
for (row = 0; row < height; row++, src += row_stride) {
static void ffbRasterPrimitive(GLcontext *ctx, GLenum rprim)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
GLuint drawop, fbc, ppc;
int do_sw = 0;
fmesa->raster_primitive = rprim;
drawop = fmesa->drawop;
fbc = fmesa->fbc;
ppc = fmesa->ppc & ~(FFB_PPC_ZS_MASK | FFB_PPC_CS_MASK);
#ifdef STATE_TRACE
fprintf(stderr,
"ffbReducedPrimitiveChange: rprim(%d) ", rprim);
#endif
switch(rprim) {
case GL_POINTS:
#ifdef STATE_TRACE
fprintf(stderr, "GL_POINTS ");
#endif
if (fmesa->draw_point == ffb_fallback_point) {
do_sw = 1;
break;
}
if (ctx->Point.SmoothFlag) {
ppc |= (FFB_PPC_ZS_VAR | FFB_PPC_CS_CONST);
drawop = FFB_DRAWOP_AADOT;
} else {
ppc |= (FFB_PPC_ZS_CONST | FFB_PPC_CS_CONST);
drawop = FFB_DRAWOP_DOT;
}
break;
case GL_LINES:
#ifdef STATE_TRACE
fprintf(stderr, "GL_LINES ");
#endif
if (fmesa->draw_line == ffb_fallback_line) {
do_sw = 1;
break;
}
if (ctx->_TriangleCaps & DD_FLATSHADE) {
ppc |= FFB_PPC_ZS_VAR | FFB_PPC_CS_CONST;
} else {
ppc |= FFB_PPC_ZS_VAR | FFB_PPC_CS_VAR;
}
if (ctx->Line.SmoothFlag)
drawop = FFB_DRAWOP_AALINE;
else
drawop = FFB_DRAWOP_DDLINE;
break;
case GL_TRIANGLES:
#ifdef STATE_TRACE
fprintf(stderr, "GL_POLYGON ");
#endif
if (fmesa->draw_tri == ffb_fallback_triangle) {
do_sw = 1;
break;
}
ppc &= ~FFB_PPC_APE_MASK;
if (ctx->Polygon.StippleFlag)
ppc |= FFB_PPC_APE_ENABLE;
else
ppc |= FFB_PPC_APE_DISABLE;
if (ctx->_TriangleCaps & DD_FLATSHADE) {
ppc |= FFB_PPC_ZS_VAR | FFB_PPC_CS_CONST;
} else {
ppc |= FFB_PPC_ZS_VAR | FFB_PPC_CS_VAR;
}
drawop = FFB_DRAWOP_TRIANGLE;
break;
default:
#ifdef STATE_TRACE
fprintf(stderr, "unknown %d!\n", rprim);
#endif
return;
};
#ifdef STATE_TRACE
fprintf(stderr, "do_sw(%d) ", do_sw);
#endif
if (do_sw != 0) {
fbc &= ~(FFB_FBC_WB_C);
fbc &= ~(FFB_FBC_ZE_MASK | FFB_FBC_RGBE_MASK);
fbc |= FFB_FBC_ZE_OFF | FFB_FBC_RGBE_MASK;
ppc &= ~(FFB_PPC_XS_MASK | FFB_PPC_ABE_MASK |
FFB_PPC_DCE_MASK | FFB_PPC_APE_MASK);
ppc |= (FFB_PPC_ZS_VAR | FFB_PPC_CS_VAR | FFB_PPC_XS_WID |
FFB_PPC_ABE_DISABLE | FFB_PPC_DCE_DISABLE |
FFB_PPC_APE_DISABLE);
} else {
fbc |= FFB_FBC_WB_C;
fbc &= ~(FFB_FBC_RGBE_MASK);
fbc |= FFB_FBC_RGBE_MASK;
ppc &= ~(FFB_PPC_ABE_MASK | FFB_PPC_XS_MASK);
if (ctx->Color.BlendEnabled) {
if ((rprim == GL_POINTS && !ctx->Point.SmoothFlag) ||
(rprim != GL_POINTS && ctx->_TriangleCaps & DD_FLATSHADE))
ppc |= FFB_PPC_ABE_ENABLE | FFB_PPC_XS_CONST;
else
ppc |= FFB_PPC_ABE_ENABLE | FFB_PPC_XS_VAR;
} else {
ppc |= FFB_PPC_ABE_DISABLE | FFB_PPC_XS_WID;
}
}
#ifdef STATE_TRACE
fprintf(stderr, "fbc(%08x) ppc(%08x)\n", fbc, ppc);
#endif
FFBFifo(fmesa, 4);
if (fmesa->drawop != drawop)
fmesa->regs->drawop = fmesa->drawop = drawop;
if (fmesa->fbc != fbc)
fmesa->regs->fbc = fmesa->fbc = fbc;
if (fmesa->ppc != ppc)
fmesa->regs->ppc = fmesa->ppc = ppc;
if (do_sw != 0) {
fmesa->regs->cmp =
(fmesa->cmp & ~(0xff<<16)) | (0x80 << 16);
} else
fmesa->regs->cmp = fmesa->cmp;
}
void ffbDDClear(GLcontext *ctx, GLbitfield mask)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = fmesa->driDrawable;
unsigned int stcmask = BUFFER_BIT_STENCIL;
#ifdef CLEAR_TRACE
fprintf(stderr, "ffbDDClear: mask(%08x) \n", mask);
#endif
if (!(fmesa->ffb_sarea->flags & FFB_DRI_FFB2PLUS))
stcmask = 0;
if (mask & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT | BUFFER_BIT_DEPTH | stcmask)) {
ffb_fbcPtr ffb = fmesa->regs;
unsigned int fbc, ppc;
fbc = (FFB_FBC_XE_ON);
ppc = (FFB_PPC_ACE_DISABLE | FFB_PPC_DCE_DISABLE |
FFB_PPC_ABE_DISABLE | FFB_PPC_VCE_DISABLE |
FFB_PPC_APE_DISABLE | FFB_PPC_XS_WID |
FFB_PPC_ZS_CONST | FFB_PPC_CS_CONST);
/* Y/X enables must be both on or both off. */
if (mask & (BUFFER_BIT_DEPTH | stcmask)) {
fbc |= (FFB_FBC_ZE_ON | FFB_FBC_YE_ON | FFB_FBC_WB_C);
} else
fbc |= FFB_FBC_ZE_OFF | FFB_FBC_YE_OFF;
/* All RGB enables must be both on or both off. */
if (mask & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) {
if (mask & BUFFER_BIT_FRONT_LEFT) {
if (fmesa->back_buffer == 0)
fbc |= FFB_FBC_WB_B;
else
fbc |= FFB_FBC_WB_A;
}
if (mask & BUFFER_BIT_BACK_LEFT) {
if (fmesa->back_buffer == 0)
fbc |= FFB_FBC_WB_A;
else
fbc |= FFB_FBC_WB_B;
}
fbc |= FFB_FBC_RGBE_ON;
} else
fbc |= FFB_FBC_RGBE_OFF;
LOCK_HARDWARE(fmesa);
if (dPriv->numClipRects) {
FFBFifo(fmesa, 8);
ffb->fbc = fbc;
ffb->ppc = ppc;
ffb->xclip = FFB_XCLIP_TEST_ALWAYS;
ffb->cmp = 0x80808080;
ffb->rop = FFB_ROP_NEW;
if (mask & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT))
ffb->fg = fmesa->clear_pixel;
if (mask & BUFFER_BIT_DEPTH)
ffb->constz = fmesa->clear_depth;
if (mask & stcmask)
ffb->consty = fmesa->clear_stencil;
ffb_do_clear(ctx, dPriv);
FFBFifo(fmesa, 6);
ffb->ppc = fmesa->ppc;
ffb->fbc = fmesa->fbc;
ffb->xclip = fmesa->xclip;
ffb->cmp = fmesa->cmp;
ffb->rop = fmesa->rop;
ffb->drawop = fmesa->drawop;
if (mask & stcmask)
ffb->consty = fmesa->consty;
fmesa->ffbScreen->rp_active = 1;
}
UNLOCK_HARDWARE(fmesa);
mask &= ~(BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT |
BUFFER_BIT_DEPTH | stcmask);
}
if (mask)
_swrast_Clear(ctx, mask);
}
static void
ffb_do_clear(GLcontext *ctx, __DRIdrawablePrivate *dPriv)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
FFBDRIPtr gDRIPriv = (FFBDRIPtr) fmesa->driScreen->pDevPriv;
ffb_fbcPtr ffb = fmesa->regs;
drm_clip_rect_t *box = dPriv->pClipRects;
int nc = dPriv->numClipRects;
GLint cx, cy, cw, ch;
/* compute region after locking: */
cx = ctx->DrawBuffer->_Xmin;
cy = ctx->DrawBuffer->_Ymin;
cw = ctx->DrawBuffer->_Xmax - cx;
ch = ctx->DrawBuffer->_Ymax - cy;
cy = dPriv->h - cy - ch;
cx += dPriv->x;
cy += dPriv->y;
while (nc--) {
GLint x = box[nc].x1;
GLint y = box[nc].y1;
GLint width = box[nc].x2 - x;
GLint height = box[nc].y2 - y;
int paligned_y, paligned_x;
int paligned_h, paligned_w = 0;
int extra_work;
if (BOX_AREA(width, height) < gDRIPriv->fastfill_small_area) {
FFBFifo(fmesa, 5);
ffb->drawop = FFB_DRAWOP_RECTANGLE;
ffb->by = y;
ffb->bx = x;
ffb->bh = height;
ffb->bw = width;
continue;
}
FFBFifo(fmesa, 1);
ffb->drawop = FFB_DRAWOP_FASTFILL;
if (gDRIPriv->disable_pagefill ||
(width < (gDRIPriv->pagefill_width<<1)) ||
(height < (gDRIPriv->pagefill_height<<1)))
goto do_fastfill;
CreatorPageFillParms(gDRIPriv,
x, y, width, height,
paligned_x, paligned_y,
paligned_w, paligned_h, extra_work);
if (extra_work < 0 ||
BOX_AREA(paligned_w, paligned_h) < gDRIPriv->pagefill_small_area) {
do_fastfill:
FFBFifo(fmesa, 10);
ffb->by = FFB_FASTFILL_COLOR_BLK;
ffb->dy = 0;
ffb->dx = 0;
ffb->bh = gDRIPriv->fastfill_height;
ffb->bw = (gDRIPriv->fastfill_width * 4);
ffb->by = FFB_FASTFILL_BLOCK;
ffb->dy = y;
ffb->dx = x;
ffb->bh = (height + (y & (gDRIPriv->fastfill_height - 1)));
ffb->bx = (width + (x & (gDRIPriv->fastfill_width - 1)));
continue;
}
/* Ok, page fill is possible and worth it. */
FFBFifo(fmesa, 15);
ffb->by = FFB_FASTFILL_COLOR_BLK;
ffb->dy = 0;
ffb->dx = 0;
ffb->bh = gDRIPriv->fastfill_height;
ffb->bw = gDRIPriv->fastfill_width * 4;
ffb->by = FFB_FASTFILL_BLOCK_X;
ffb->dy = 0;
ffb->dx = 0;
ffb->bh = gDRIPriv->pagefill_height;
ffb->bw = gDRIPriv->pagefill_width * 4;
ffb->by = FFB_FASTFILL_PAGE;
ffb->dy = paligned_y;
ffb->dx = paligned_x;
ffb->bh = paligned_h;
ffb->bx = paligned_w;
if (extra_work) {
struct ff_fixups local_fixups[4];
int nfixups;
nfixups = CreatorComputePageFillFixups(local_fixups,
x, y, width, height,
paligned_x, paligned_y,
paligned_w, paligned_h);
FFBFifo(fmesa, 5 + (nfixups * 5));
ffb->by = FFB_FASTFILL_COLOR_BLK;
ffb->dy = 0;
ffb->dx = 0;
ffb->bh = gDRIPriv->fastfill_height;
ffb->bw = gDRIPriv->fastfill_width * 4;
while (--nfixups >= 0) {
int xx, yy, ww, hh;
xx = local_fixups[nfixups].x;
yy = local_fixups[nfixups].y;
ffb->dy = yy;
ffb->dx = xx;
ww = (local_fixups[nfixups].width +
(xx & (gDRIPriv->fastfill_width - 1)));
hh = (local_fixups[nfixups].height +
(yy & (gDRIPriv->fastfill_height - 1)));
if (nfixups != 0) {
ffb->by = FFB_FASTFILL_BLOCK;
ffb->bh = hh;
ffb->bw = ww;
} else {
ffb->bh = hh;
ffb->by = FFB_FASTFILL_BLOCK;
ffb->bx = ww;
}
}
}
}
}