#include "mtypes.h"
#include "mgadd.h"
#include "mgacontext.h"
#include "mgaspan.h"
#include "mgaioctl.h"
#include "swrast/swrast.h"
#define DBG 0
#define LOCAL_VARS \
__DRIdrawablePrivate *dPriv = mmesa->driDrawable; \
mgaScreenPrivate *mgaScreen = mmesa->mgaScreen; \
__DRIscreenPrivate *sPriv = mmesa->driScreen; \
GLuint pitch = mgaScreen->frontPitch; \
GLuint height = dPriv->h; \
char *read_buf = (char *)(sPriv->pFB + \
mmesa->readOffset + \
dPriv->x * mgaScreen->cpp + \
dPriv->y * pitch); \
char *buf = (char *)(sPriv->pFB + \
mmesa->drawOffset + \
dPriv->x * mgaScreen->cpp + \
dPriv->y * pitch); \
GLuint p; \
(void) read_buf; (void) buf; (void) p
#define LOCAL_DEPTH_VARS \
__DRIdrawablePrivate *dPriv = mmesa->driDrawable; \
mgaScreenPrivate *mgaScreen = mmesa->mgaScreen; \
__DRIscreenPrivate *sPriv = mmesa->driScreen; \
GLuint pitch = mgaScreen->frontPitch; \
GLuint height = dPriv->h; \
char *buf = (char *)(sPriv->pFB + \
mgaScreen->depthOffset + \
dPriv->x * mgaScreen->cpp + \
dPriv->y * 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 HW_LOCK() \
mgaContextPtr mmesa = MGA_CONTEXT(ctx); \
FLUSH_BATCH(mmesa); \
LOCK_HARDWARE_QUIESCENT(mmesa);
#define HW_CLIPLOOP() \
do { \
int _nc = mmesa->numClipRects; \
while (_nc--) { \
int minx = mmesa->pClipRects[_nc].x1 - mmesa->drawX; \
int miny = mmesa->pClipRects[_nc].y1 - mmesa->drawY; \
int maxx = mmesa->pClipRects[_nc].x2 - mmesa->drawX; \
int maxy = mmesa->pClipRects[_nc].y2 - mmesa->drawY;
#define HW_ENDCLIPLOOP() \
} \
} while (0)
#define HW_UNLOCK() \
UNLOCK_HARDWARE(mmesa);
#define Y_FLIP(_y) (height - _y - 1)
#undef INIT_MONO_PIXEL
#define INIT_MONO_PIXEL(p, color) \
p = PACK_COLOR_565( color[0], color[1], color[2] )
#define WRITE_RGBA( _x, _y, r, g, b, a ) \
*(GLushort *)(buf + _x*2 + _y*pitch) = ( (((int)r & 0xf8) << 8) | \
(((int)g & 0xfc) << 3) | \
(((int)b & 0xf8) >> 3))
#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 >> 11) & 0x1f) * 255) / 31; \
rgba[1] = (((p >> 5) & 0x3f) * 255) / 63; \
rgba[2] = (((p >> 0) & 0x1f) * 255) / 31; \
rgba[3] = 255; \
} while(0)
#define TAG(x) mga##x##_565
#include "spantmp.h"
#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) = ((r << 16) | \
(g << 8) | \
(b << 0) | \
(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] = 0xff; \
} while (0)
#define TAG(x) mga##x##_8888
#include "spantmp.h"
#define WRITE_DEPTH( _x, _y, d ) \
*(GLushort *)(buf + _x*2 + _y*pitch) = d;
#define READ_DEPTH( d, _x, _y ) \
d = *(GLushort *)(buf + _x*2 + _y*pitch);
#define TAG(x) mga##x##_16
#include "depthtmp.h"
#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) mga##x##_32
#include "depthtmp.h"
#define WRITE_DEPTH( _x, _y, d ) { \
GLuint tmp = *(GLuint *)(buf + _x*4 + _y*pitch); \
tmp &= 0xff; \
tmp |= (d) << 8; \
*(GLuint *)(buf + _x*4 + _y*pitch) = tmp; \
}
#define READ_DEPTH( d, _x, _y ) { \
d = (*(GLuint *)(buf + _x*4 + _y*pitch) & ~0xff) >> 8; \
}
#define TAG(x) mga##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) mga##x##_24_8
#include "stenciltmp.h"
static void mgaDDSetBuffer(GLcontext *ctx, GLframebuffer *buffer,
GLuint bufferBit)
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
if (bufferBit == FRONT_LEFT_BIT)
{
mmesa->drawOffset = mmesa->mgaScreen->frontOffset;
mmesa->readOffset = mmesa->mgaScreen->frontOffset;
}
else if (bufferBit == BACK_LEFT_BIT)
{
mmesa->drawOffset = mmesa->mgaScreen->backOffset;
mmesa->readOffset = mmesa->mgaScreen->backOffset;
}
else {
assert(0);
}
}
void mgaDDInitSpanFuncs( GLcontext *ctx )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
swdd->SetBuffer = mgaDDSetBuffer;
switch (mmesa->mgaScreen->cpp) {
case 2:
swdd->WriteRGBASpan = mgaWriteRGBASpan_565;
swdd->WriteRGBSpan = mgaWriteRGBSpan_565;
swdd->WriteMonoRGBASpan = mgaWriteMonoRGBASpan_565;
swdd->WriteRGBAPixels = mgaWriteRGBAPixels_565;
swdd->WriteMonoRGBAPixels = mgaWriteMonoRGBAPixels_565;
swdd->ReadRGBASpan = mgaReadRGBASpan_565;
swdd->ReadRGBAPixels = mgaReadRGBAPixels_565;
swdd->ReadDepthSpan = mgaReadDepthSpan_16;
swdd->WriteDepthSpan = mgaWriteDepthSpan_16;
swdd->ReadDepthPixels = mgaReadDepthPixels_16;
swdd->WriteDepthPixels = mgaWriteDepthPixels_16;
break;
case 4:
swdd->WriteRGBASpan = mgaWriteRGBASpan_8888;
swdd->WriteRGBSpan = mgaWriteRGBSpan_8888;
swdd->WriteMonoRGBASpan = mgaWriteMonoRGBASpan_8888;
swdd->WriteRGBAPixels = mgaWriteRGBAPixels_8888;
swdd->WriteMonoRGBAPixels = mgaWriteMonoRGBAPixels_8888;
swdd->ReadRGBASpan = mgaReadRGBASpan_8888;
swdd->ReadRGBAPixels = mgaReadRGBAPixels_8888;
if (!mmesa->hw_stencil) {
swdd->ReadDepthSpan = mgaReadDepthSpan_32;
swdd->WriteDepthSpan = mgaWriteDepthSpan_32;
swdd->ReadDepthPixels = mgaReadDepthPixels_32;
swdd->WriteDepthPixels = mgaWriteDepthPixels_32;
} else {
swdd->ReadDepthSpan = mgaReadDepthSpan_24_8;
swdd->WriteDepthSpan = mgaWriteDepthSpan_24_8;
swdd->ReadDepthPixels = mgaReadDepthPixels_24_8;
swdd->WriteDepthPixels = mgaWriteDepthPixels_24_8;
swdd->ReadStencilSpan = mgaReadStencilSpan_24_8;
swdd->WriteStencilSpan = mgaWriteStencilSpan_24_8;
swdd->ReadStencilPixels = mgaReadStencilPixels_24_8;
swdd->WriteStencilPixels = mgaWriteStencilPixels_24_8;
}
break;
}
}