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/*
* Author: Max Lingua <sunmax@libero.it>
*/
#include "s3v_context.h"
#include "s3v_lock.h"
#include "swrast/swrast.h"
#define _SPANLOCK 1
#define DBG 0
#define LOCAL_VARS \
s3vContextPtr vmesa = S3V_CONTEXT(ctx); \
s3vScreenPtr s3vscrn = vmesa->s3vScreen; \
__DRIscreenPrivate *sPriv = vmesa->driScreen; \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
GLuint pitch = ( (vmesa->Flags & S3V_BACK_BUFFER) ? \
((dPriv->w+31)&~31) * s3vscrn->cpp \
: sPriv->fbWidth * s3vscrn->cpp); \
GLuint height = dPriv->h; \
char *buf = ( (vmesa->Flags & S3V_BACK_BUFFER) ? \
(char *)(sPriv->pFB + vmesa->drawOffset) \
: (char *)(sPriv->pFB + vmesa->drawOffset \
+ dPriv->x * s3vscrn->cpp + dPriv->y * pitch) ); \
char *read_buf = ( (vmesa->Flags & S3V_BACK_BUFFER) ? \
(char *)(sPriv->pFB + vmesa->drawOffset) \
: (char *)(sPriv->pFB + vmesa->drawOffset \
+ dPriv->x * s3vscrn->cpp + dPriv->y * pitch) ); \
GLuint p; \
(void) read_buf; (void) buf; (void) p; (void) pitch
/* FIXME! Depth/Stencil read/writes don't work ! */
#define LOCAL_DEPTH_VARS \
s3vScreenPtr s3vscrn = vmesa->s3vScreen; \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
__DRIscreenPrivate *sPriv = vmesa->driScreen; \
GLuint pitch = s3vscrn->depthPitch; \
GLuint height = dPriv->h; \
char *buf = (char *)(sPriv->pFB + \
s3vscrn->depthOffset); /* + \
dPriv->x * s3vscrn->cpp + \
dPriv->y * pitch)*/ \
(void) pitch
#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
#define CLIPPIXEL( _x, _y ) \
((_x >= minx) && (_x < maxx) && (_y >= miny) && (_y < maxy))
#define CLIPSPAN( _x, _y, _n, _x1, _n1, _i ) \
if ( _y < miny || _y >= maxy ) { \
_n1 = 0, _x1 = x; \
} else { \
_n1 = _n; \
_x1 = _x; \
if ( _x1 < minx ) \
_i += (minx-_x1), n1 -= (minx-_x1), _x1 = minx; \
if ( _x1 + _n1 >= maxx ) \
n1 -= (_x1 + n1 - maxx); \
}
#define Y_FLIP( _y ) (height - _y - 1)
#if _SPANLOCK /* OK, we lock */
#define HW_LOCK() \
s3vContextPtr vmesa = S3V_CONTEXT(ctx); \
(void) vmesa; \
DMAFLUSH(); \
S3V_SIMPLE_FLUSH_LOCK(vmesa);
#define HW_UNLOCK() S3V_SIMPLE_UNLOCK(vmesa);
#else /* plz, don't lock */
#define HW_LOCK() \
s3vContextPtr vmesa = S3V_CONTEXT(ctx); \
(void) vmesa; \
DMAFLUSH();
#define HW_UNLOCK()
#endif
#define HW_CLIPLOOP() \
do { \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
int _nc = dPriv->numClipRects; \
\
while ( _nc-- ) { \
int minx = dPriv->pClipRects[_nc].x1 - dPriv->x; \
int miny = dPriv->pClipRects[_nc].y1 - dPriv->y; \
int maxx = dPriv->pClipRects[_nc].x2 - dPriv->x; \
int maxy = dPriv->pClipRects[_nc].y2 - dPriv->y;
#define HW_ENDCLIPLOOP() \
} \
} while (0)
/* ================================================================
* Color buffer
*/
/* 16 bit, RGB565 color spanline and pixel functions
*/
#define INIT_MONO_PIXEL(p, color) \
p = S3VIRGEPACKCOLOR555( color[0], color[1], color[2], color[3] )
#define WRITE_RGBA( _x, _y, r, g, b, a ) \
do { \
*(GLushort *)(buf + _x*2 + _y*pitch) = ((((int)r & 0xf8) << 7) | \
(((int)g & 0xf8) << 2) | \
(((int)b & 0xf8) >> 3)); \
DEBUG(("buf=0x%x drawOffset=0x%x dPriv->x=%i s3vscrn->cpp=%i dPriv->y=%i pitch=%i\n", \
sPriv->pFB, vmesa->drawOffset, dPriv->x, s3vscrn->cpp, dPriv->y, pitch)); \
DEBUG(("dPriv->w = %i\n", dPriv->w)); \
} while(0)
#define WRITE_PIXEL( _x, _y, p ) \
*(GLushort *)(buf + _x*2 + _y*pitch) = p
#define READ_RGBA( rgba, _x, _y ) \
do { \
GLushort p = *(GLushort *)(read_buf + _x*2 + _y*pitch); \
rgba[0] = (p >> 7) & 0xf8; \
rgba[1] = (p >> 2) & 0xf8; \
rgba[2] = (p << 3) & 0xf8; \
rgba[3] = 0xff; /*
if ( rgba[0] & 0x08 ) rgba[0] |= 0x07; \
if ( rgba[1] & 0x04 ) rgba[1] |= 0x03; \
if ( rgba[2] & 0x08 ) rgba[2] |= 0x07; */ \
} while (0)
#define TAG(x) s3v##x##_RGB555
#include "spantmp.h"
/* 32 bit, ARGB8888 color spanline and pixel functions
*/
#undef INIT_MONO_PIXEL
#define INIT_MONO_PIXEL(p, color) \
p = PACK_COLOR_8888( color[3], color[0], color[1], color[2] )
#define WRITE_RGBA( _x, _y, r, g, b, a ) \
*(GLuint *)(buf + _x*4 + _y*pitch) = ((b << 0) | \
(g << 8) | \
(r << 16) | \
(a << 24) )
#define WRITE_PIXEL( _x, _y, p ) \
*(GLuint *)(buf + _x*4 + _y*pitch) = p
#define READ_RGBA( rgba, _x, _y ) \
do { \
GLuint p = *(GLuint *)(read_buf + _x*4 + _y*pitch); \
rgba[0] = (p >> 16) & 0xff; \
rgba[1] = (p >> 8) & 0xff; \
rgba[2] = (p >> 0) & 0xff; \
rgba[3] = (p >> 24) & 0xff; \
} while (0)
#define TAG(x) s3v##x##_ARGB8888
#include "spantmp.h"
/* 16 bit depthbuffer functions.
*/
#define WRITE_DEPTH( _x, _y, d ) \
*(GLushort *)(buf + _x*2 + _y*dPriv->w*2) = d
#define READ_DEPTH( d, _x, _y ) \
d = *(GLushort *)(buf + _x*2 + _y*dPriv->w*2);
#define TAG(x) s3v##x##_16
#include "depthtmp.h"
/* 32 bit depthbuffer functions.
*/
#if 0
#define WRITE_DEPTH( _x, _y, d ) \
*(GLuint *)(buf + _x*4 + _y*pitch) = d;
#define READ_DEPTH( d, _x, _y ) \
d = *(GLuint *)(buf + _x*4 + _y*pitch);
#define TAG(x) s3v##x##_32
#include "depthtmp.h"
#endif
/* 24/8 bit interleaved depth/stencil functions
*/
#if 0
#define WRITE_DEPTH( _x, _y, d ) { \
GLuint tmp = *(GLuint *)(buf + _x*4 + _y*pitch); \
tmp &= 0xff; \
tmp |= (d) & 0xffffff00; \
*(GLuint *)(buf + _x*4 + _y*pitch) = tmp; \
}
#define READ_DEPTH( d, _x, _y ) \
d = *(GLuint *)(buf + _x*4 + _y*pitch) & ~0xff
#define TAG(x) s3v##x##_24_8
#include "depthtmp.h"
#define WRITE_STENCIL( _x, _y, d ) { \
GLuint tmp = *(GLuint *)(buf + _x*4 + _y*pitch); \
tmp &= 0xffffff00; \
tmp |= d & 0xff; \
*(GLuint *)(buf + _x*4 + _y*pitch) = tmp; \
}
#define READ_STENCIL( d, _x, _y ) \
d = *(GLuint *)(buf + _x*4 + _y*pitch) & 0xff
#define TAG(x) s3v##x##_24_8
#include "stenciltmp.h"
#endif
static void s3vSetBuffer( GLcontext *ctx, GLframebuffer *colorBuffer,
GLuint bufferBit )
{
s3vContextPtr vmesa = S3V_CONTEXT(ctx);
switch ( bufferBit ) {
case DD_FRONT_LEFT_BIT:
vmesa->drawOffset = vmesa->readOffset = 0;
break;
case DD_BACK_LEFT_BIT:
vmesa->drawOffset = vmesa->readOffset = vmesa->driScreen->fbHeight *
vmesa->driScreen->fbWidth *
vmesa->s3vScreen->cpp;
break;
}
}
void s3vInitSpanFuncs( GLcontext *ctx )
{
s3vContextPtr vmesa = S3V_CONTEXT(ctx);
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
swdd->SetBuffer = s3vSetBuffer;
switch ( vmesa->s3vScreen->cpp ) {
case 2:
swdd->WriteRGBASpan = s3vWriteRGBASpan_RGB555;
swdd->WriteRGBSpan = s3vWriteRGBSpan_RGB555;
swdd->WriteMonoRGBASpan = s3vWriteMonoRGBASpan_RGB555;
swdd->WriteRGBAPixels = s3vWriteRGBAPixels_RGB555;
swdd->WriteMonoRGBAPixels = s3vWriteMonoRGBAPixels_RGB555;
swdd->ReadRGBASpan = s3vReadRGBASpan_RGB555;
swdd->ReadRGBAPixels = s3vReadRGBAPixels_RGB555;
break;
case 4:
swdd->WriteRGBASpan = s3vWriteRGBASpan_ARGB8888;
swdd->WriteRGBSpan = s3vWriteRGBSpan_ARGB8888;
swdd->WriteMonoRGBASpan = s3vWriteMonoRGBASpan_ARGB8888;
swdd->WriteRGBAPixels = s3vWriteRGBAPixels_ARGB8888;
swdd->WriteMonoRGBAPixels = s3vWriteMonoRGBAPixels_ARGB8888;
#if 1
swdd->ReadRGBASpan = s3vReadRGBASpan_ARGB8888;
#else
swdd->ReadRGBASpan = s3vReadRGBASpan8888;
#endif
swdd->ReadRGBAPixels = s3vReadRGBAPixels_ARGB8888;
break;
default:
break;
}
switch ( vmesa->glCtx->Visual.depthBits ) {
case 15:
case 16:
swdd->ReadDepthSpan = s3vReadDepthSpan_16;
swdd->WriteDepthSpan = s3vWriteDepthSpan_16;
swdd->ReadDepthPixels = s3vReadDepthPixels_16;
swdd->WriteDepthPixels = s3vWriteDepthPixels_16;
break;
#if 0
case 24:
swdd->ReadDepthSpan = s3vReadDepthSpan_24_8;
swdd->WriteDepthSpan = s3vWriteDepthSpan_24_8;
swdd->ReadDepthPixels = s3vReadDepthPixels_24_8;
swdd->WriteDepthPixels = s3vWriteDepthPixels_24_8;
swdd->ReadStencilSpan = s3vReadStencilSpan_24_8;
swdd->WriteStencilSpan = s3vWriteStencilSpan_24_8;
swdd->ReadStencilPixels = s3vReadStencilPixels_24_8;
swdd->WriteStencilPixels = s3vWriteStencilPixels_24_8;
break;
#endif
default:
break;
}
}
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