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#include "types.h"
#include "vbrender.h"
#include "i810log.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "mm.h"
#include "i810lib.h"
#include "i810dd.h"
#include "i810clear.h"
#include "i810state.h"
#include "i810tris.h"
/* Clear the depthbuffer. Always uses the auxillary cliprects and
* origin from 'dPriv'.
*/
static void i810_clear_depthbuffer( GLcontext *ctx,
GLboolean all,
GLint cx, GLint cy,
GLint cwidth, GLint cheight )
{
i810ContextPtr imesa = I810_CONTEXT( ctx );
GLuint zval = (GLuint) (ctx->Depth.Clear * DEPTH_SCALE);
i810ScreenPrivate *i810Screen = imesa->i810Screen;
__DRIdrawablePrivate *dPriv = imesa->driDrawable;
/* int _nc = dPriv->numAuxClipRects; */
/* XF86DRIClipRectPtr box = dPriv->pAuxClipRects; */
int _nc = imesa->numClipRects;
XF86DRIClipRectPtr box = imesa->pClipRects;
cy = dPriv->h-cy-cheight;
cx += dPriv->auxX;
cy += dPriv->auxY;
while (_nc--) {
GLint x = box[_nc].x1;
GLint y = box[_nc].y1;
GLint width = box[_nc].x2 - x;
GLint height = box[_nc].y2 - y;
if (!all) {
if (x < cx) width -= cx - x, x = cx;
if (y < cy) height -= cy - y, y = cy;
if (x + width > cx + cwidth) width = cx + cwidth - x;
if (y + height > cy + cheight) height = cy + cheight - y;
if (width <= 0) continue;
if (height <= 0) continue;
}
if (I810_DEBUG&DEBUG_VERBOSE_2D)
fprintf(stderr, "clear depth rect %d,%d %dx%d\n",
(int) x, (int) y, (int) width, (int) height);
{
int start = (i810Screen->depthOffset +
y * i810Screen->auxPitch +
x * 2);
BEGIN_BATCH(imesa, 6);
OUT_BATCH( BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3 );
OUT_BATCH( BR13_SOLID_PATTERN |
(0xF0 << 16) |
i810Screen->auxPitch );
OUT_BATCH( (height << 16) | (width * 2));
OUT_BATCH( start );
OUT_BATCH( zval );
OUT_BATCH( 0 );
ADVANCE_BATCH();
}
}
}
/* Clear the current drawbuffer. Checks 'imesa' to determine which set of
* cliprects and origin to use.
*/
static void i810_clear_colorbuffer( GLcontext *ctx,
GLboolean all,
GLint cx, GLint cy,
GLint cwidth, GLint cheight )
{
i810ContextPtr imesa = I810_CONTEXT( ctx );
GLushort c = imesa->ClearColor;
i810ScreenPrivate *i810Screen = imesa->i810Screen;
__DRIdrawablePrivate *dPriv = imesa->driDrawable;
int _nc = imesa->numClipRects;
XF86DRIClipRectPtr box = imesa->pClipRects;
cy = dPriv->h-cy-cheight;
cx += imesa->drawX;
cy += imesa->drawY;
while (_nc--) {
GLint x = box[_nc].x1;
GLint y = box[_nc].y1;
GLint width = box[_nc].x2 - x;
GLint height = box[_nc].y2 - y;
if (!all) {
if (x < cx) width -= cx - x, x = cx;
if (y < cy) height -= cy - y, y = cy;
if (x + width > cx + cwidth) width = cx + cwidth - x;
if (y + height > cy + cheight) height = cy + cheight - y;
if (width <= 0) continue;
if (height <= 0) continue;
}
if (I810_DEBUG&DEBUG_VERBOSE_2D)
fprintf(stderr, "clear color rect %d,%d %dx%d\n",
(int) x, (int) y, (int) width, (int) height);
{
int start = (imesa->drawOffset +
y * i810Screen->auxPitch +
x * i810Screen->cpp);
BEGIN_BATCH( imesa, 6 );
OUT_BATCH( BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3 );
OUT_BATCH( BR13_SOLID_PATTERN |
(0xF0 << 16) |
i810Screen->auxPitch );
OUT_BATCH( (height << 16) | (width * i810Screen->cpp));
OUT_BATCH( start );
OUT_BATCH( c );
OUT_BATCH( 0 );
ADVANCE_BATCH();
}
}
}
/*
* i810Clear
*
* Clear the color and/or depth buffers. If 'all' is GL_TRUE, clear
* whole buffer, otherwise clear the region defined by the remaining
* parameters.
*/
GLbitfield i810Clear( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint cx, GLint cy, GLint cwidth, GLint cheight )
{
i810ContextPtr imesa = I810_CONTEXT( ctx );
if (I810_DEBUG&DEBUG_VERBOSE_API)
fprintf(stderr, "i810Clear( %d, %d, %d, %d, %d )\n",
(int)mask, (int)cx, (int)cy, (int)cwidth, (int)cheight );
LOCK_HARDWARE(imesa);
{
BEGIN_BATCH( imesa, 2 );
OUT_BATCH( INST_PARSER_CLIENT | INST_OP_FLUSH );
OUT_BATCH( 0 );
ADVANCE_BATCH();
}
if (mask & GL_COLOR_BUFFER_BIT) {
i810_clear_colorbuffer( ctx, all, cx, cy, cwidth, cheight );
mask &= ~GL_COLOR_BUFFER_BIT;
}
if ( (mask & GL_DEPTH_BUFFER_BIT) && ctx->Depth.Mask ) {
i810_clear_depthbuffer( ctx, all, cx, cy, cwidth, cheight );
mask &= ~GL_DEPTH_BUFFER_BIT;
}
{
BEGIN_BATCH( imesa, 2 );
OUT_BATCH( INST_PARSER_CLIENT | INST_OP_FLUSH );
OUT_BATCH( 0 );
ADVANCE_BATCH();
}
UNLOCK_HARDWARE( imesa );
return mask;
}
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