#include "sis_context.h"
#include "sis_span.h"
#include "swrast/swrast.h"
#define DBG 0
#define LOCAL_VARS \
sisContextPtr smesa = SIS_CONTEXT(ctx); \
char *buf = (char *)(smesa->FbBase + smesa->drawOffset); \
char *read_buf = (char *)(smesa->FbBase + smesa->readOffset); \
GLuint p; \
(void) read_buf; (void) buf; (void) p
#define LOCAL_DEPTH_VARS \
sisContextPtr smesa = SIS_CONTEXT(ctx); \
char *buf = smesa->depthbuffer; \
#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 HW_LOCK() do {} while(0);
#define HW_CLIPLOOP() \
do { \
__DRIdrawablePrivate *dPriv = smesa->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)
#define HW_UNLOCK() do {} while(0);
#define INIT_MONO_PIXEL(p, color) \
p = SISPACKCOLOR565( color[0], color[1], color[2] )
#define WRITE_RGBA( _x, _y, r, g, b, a ) \
*(GLushort *)(buf + _x*2 + _y*smesa->drawPitch) = \
(((r & 0xf8) << 8) | \
((g & 0xfc) << 3) | \
(b >> 3))
#define WRITE_PIXEL( _x, _y, p ) \
*(GLushort *)(buf + _x*2 + _y*smesa->drawPitch) = p
#define READ_RGBA( rgba, _x, _y ) \
do { \
GLushort p = *(GLushort *)(read_buf + _x*2 + _y*smesa->readPitch); \
rgba[0] = (p & 0xf800) >> 8; \
rgba[1] = (p & 0x07e0) >> 3; \
rgba[2] = (p & 0x001f) << 3; \
rgba[3] = 0xff; \
} while(0)
#define TAG(x) sis##x##_565
#include "spantmp.h"
#undef INIT_MONO_PIXEL
#define INIT_MONO_PIXEL(p, color) \
p = SISPACKCOLOR8888( color[0], color[1], color[2], color[3] )
#define WRITE_RGBA( _x, _y, r, g, b, a ) \
*(GLuint *)(buf + _x*4 + _y*smesa->drawPitch) = \
(((a) << 24) | \
((r) << 16) | \
((g) << 8) | \
((b)))
#define WRITE_PIXEL( _x, _y, p ) \
*(GLuint *)(buf + _x*4 + _y*smesa->drawPitch) = p
#define READ_RGBA( rgba, _x, _y ) \
do { \
GLuint p = *(GLuint *)(read_buf + _x*4 + _y*smesa->readPitch); \
rgba[0] = (p >> 16) & 0xff; \
rgba[1] = (p >> 8) & 0xff; \
rgba[2] = (p >> 0) & 0xff; \
rgba[3] = 0xff; \
} while(0)
#define TAG(x) sis##x##_8888
#include "spantmp.h"
#define WRITE_DEPTH( _x, _y, d ) \
*(GLushort *)(buf + _x*2 + _y*smesa->depthPitch) = d;
#define READ_DEPTH( d, _x, _y ) \
d = *(GLushort *)(buf + _x*2 + _y*smesa->depthPitch);
#define TAG(x) sis##x##_16
#include "depthtmp.h"
#define WRITE_DEPTH( _x, _y, d ) \
*(GLuint *)(buf + _x*4 + _y*smesa->depthPitch) = d;
#define READ_DEPTH( d, _x, _y ) \
d = *(GLuint *)(buf + _x*4 + _y*smesa->depthPitch);
#define TAG(x) sis##x##_32
#include "depthtmp.h"
#define WRITE_DEPTH( _x, _y, d ) { \
GLuint tmp = *(GLuint *)(buf + _x*4 + _y*smesa->depthPitch); \
tmp &= 0xff000000; \
tmp |= (d & 0x00ffffff); \
*(GLuint *)(buf + _x*4 + _y*smesa->depthPitch) = tmp; \
}
#define READ_DEPTH( d, _x, _y ) { \
d = *(GLuint *)(buf + _x*4 + _y*smesa->depthPitch) & 0x00ffffff; \
}
#define TAG(x) sis##x##_24_8
#include "depthtmp.h"
#define WRITE_STENCIL( _x, _y, d ) { \
GLuint tmp = *(GLuint *)(buf + _x*4 + _y*smesa->depthPitch); \
tmp &= 0x00ffffff; \
tmp |= (d << 24); \
*(GLuint *)(buf + _x*4 + _y*smesa->depthPitch) = tmp; \
}
#define READ_STENCIL( d, _x, _y ) \
d = (*(GLuint *)(buf + _x*4 + _y*smesa->depthPitch) & 0xff000000) >> 24;
#define TAG(x) sis##x##_24_8
#include "stenciltmp.h"
static void sisDDSetBuffer( GLcontext *ctx,
GLframebuffer *colorBuffer,
GLuint bufferBit )
{
sisContextPtr smesa = SIS_CONTEXT(ctx);
switch ( bufferBit ) {
case FRONT_LEFT_BIT:
smesa->drawOffset = smesa->readOffset = smesa->frontOffset;
smesa->drawPitch = smesa->readPitch = smesa->frontPitch;
break;
case BACK_LEFT_BIT:
smesa->drawOffset = smesa->readOffset = smesa->backOffset;
smesa->drawPitch = smesa->readPitch = smesa->backPitch;
break;
default:
break;
}
}
static void sisSpanRenderStart( GLcontext *ctx )
{
sisContextPtr smesa = SIS_CONTEXT(ctx);
WaitEngIdle( smesa );
}
static void sisSpanRenderFinish( GLcontext *ctx )
{
_swrast_flush( ctx );
}
void
sisDDInitSpanFuncs( GLcontext *ctx )
{
sisContextPtr smesa = SIS_CONTEXT(ctx);
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
swdd->SetBuffer = sisDDSetBuffer;
switch (smesa->zFormat)
{
case SiS_ZFORMAT_Z16:
swdd->ReadDepthSpan = sisReadDepthSpan_16;
swdd->ReadDepthPixels = sisReadDepthPixels_16;
swdd->WriteDepthSpan = sisWriteDepthSpan_16;
swdd->WriteDepthPixels = sisWriteDepthPixels_16;
swdd->ReadStencilSpan = NULL;
swdd->ReadStencilPixels = NULL;
swdd->WriteStencilSpan = NULL;
swdd->WriteStencilPixels = NULL;
break;
case SiS_ZFORMAT_Z32:
swdd->ReadDepthSpan = sisReadDepthSpan_32;
swdd->ReadDepthPixels = sisReadDepthPixels_32;
swdd->WriteDepthSpan = sisWriteDepthSpan_32;
swdd->WriteDepthPixels = sisWriteDepthPixels_32;
swdd->ReadStencilSpan = NULL;
swdd->ReadStencilPixels = NULL;
swdd->WriteStencilSpan = NULL;
swdd->WriteStencilPixels = NULL;
break;
case SiS_ZFORMAT_S8Z24:
swdd->ReadDepthSpan = sisReadDepthSpan_24_8;
swdd->ReadDepthPixels = sisReadDepthPixels_24_8;
swdd->WriteDepthSpan = sisWriteDepthSpan_24_8;
swdd->WriteDepthPixels = sisWriteDepthPixels_24_8;
swdd->ReadStencilSpan = sisReadStencilSpan_24_8;
swdd->ReadStencilPixels = sisReadStencilPixels_24_8;
swdd->WriteStencilSpan = sisWriteStencilSpan_24_8;
swdd->WriteStencilPixels = sisWriteStencilPixels_24_8;
break;
}
switch ( smesa->bytesPerPixel )
{
case 2:
swdd->WriteRGBASpan = sisWriteRGBASpan_565;
swdd->WriteRGBSpan = sisWriteRGBSpan_565;
swdd->WriteMonoRGBASpan = sisWriteMonoRGBASpan_565;
swdd->WriteRGBAPixels = sisWriteRGBAPixels_565;
swdd->WriteMonoRGBAPixels = sisWriteMonoRGBAPixels_565;
swdd->ReadRGBASpan = sisReadRGBASpan_565;
swdd->ReadRGBAPixels = sisReadRGBAPixels_565;
break;
case 4:
swdd->WriteRGBASpan = sisWriteRGBASpan_8888;
swdd->WriteRGBSpan = sisWriteRGBSpan_8888;
swdd->WriteMonoRGBASpan = sisWriteMonoRGBASpan_8888;
swdd->WriteRGBAPixels = sisWriteRGBAPixels_8888;
swdd->WriteMonoRGBAPixels = sisWriteMonoRGBAPixels_8888;
swdd->ReadRGBASpan = sisReadRGBASpan_8888;
swdd->ReadRGBAPixels = sisReadRGBAPixels_8888;
break;
default:
assert(0);
break;
}
swdd->WriteCI8Span = NULL;
swdd->WriteCI32Span = NULL;
swdd->WriteMonoCISpan = NULL;
swdd->WriteCI32Pixels = NULL;
swdd->WriteMonoCIPixels = NULL;
swdd->ReadCI32Span = NULL;
swdd->ReadCI32Pixels = NULL;
swdd->SpanRenderStart = sisSpanRenderStart;
swdd->SpanRenderFinish = sisSpanRenderFinish;
}