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#include "glheader.h"
#include "macros.h"
#include "mtypes.h"
#include "colormac.h"
#include "i810screen.h"
#include "i810_dri.h"
#include "i810span.h"
#include "i810ioctl.h"
#include "swrast/swrast.h"
#define DBG 0
#define LOCAL_VARS \
i810ContextPtr imesa = I810_CONTEXT(ctx); \
__DRIdrawablePrivate *dPriv = imesa->driDrawable; \
i810ScreenPrivate *i810Screen = imesa->i810Screen; \
GLuint pitch = i810Screen->backPitch; \
GLuint height = dPriv->h; \
GLushort p; \
char *buf = (char *)(imesa->drawMap + \
dPriv->x * 2 + \
dPriv->y * pitch); \
char *read_buf = (char *)(imesa->readMap + \
dPriv->x * 2 + \
dPriv->y * pitch); \
(void) read_buf; (void) buf; (void) p
#define LOCAL_DEPTH_VARS \
i810ContextPtr imesa = I810_CONTEXT(ctx); \
__DRIdrawablePrivate *dPriv = imesa->driDrawable; \
i810ScreenPrivate *i810Screen = imesa->i810Screen; \
GLuint pitch = i810Screen->backPitch; \
GLuint height = dPriv->h; \
char *buf = (char *)(i810Screen->depth.map + \
dPriv->x * 2 + \
dPriv->y * pitch)
#define INIT_MONO_PIXEL(p, color) \
p = PACK_COLOR_565( color[0], color[1], color[2] )
#define Y_FLIP(_y) (height - _y - 1)
#define HW_LOCK()
#define HW_UNLOCK()
/* 16 bit, 565 rgb color spanline and pixel functions
*/
#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 >> 8) & 0xf8) * 255 / 0xf8; \
rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc; \
rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \
rgba[3] = 255; \
} while(0)
#define TAG(x) i810##x##_565
#include "spantmp.h"
/* 16 bit depthbuffer functions.
*/
#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) i810##x##_16
#include "depthtmp.h"
/*
* This function is called to specify which buffer to read and write
* for software rasterization (swrast) fallbacks. This doesn't necessarily
* correspond to glDrawBuffer() or glReadBuffer() calls.
*/
static void i810SetBuffer(GLcontext *ctx, GLframebuffer *buffer,
GLuint bufferBit )
{
i810ContextPtr imesa = I810_CONTEXT(ctx);
(void) buffer;
switch(bufferBit) {
case BUFFER_BIT_FRONT_LEFT:
if ( imesa->sarea->pf_current_page == 1)
imesa->readMap = imesa->i810Screen->back.map;
else
imesa->readMap = (char*)imesa->driScreen->pFB;
break;
case BUFFER_BIT_BACK_LEFT:
if ( imesa->sarea->pf_current_page == 1)
imesa->readMap = (char*)imesa->driScreen->pFB;
else
imesa->readMap = imesa->i810Screen->back.map;
break;
default:
ASSERT(0);
break;
}
imesa->drawMap = imesa->readMap;
}
/* Move locking out to get reasonable span performance.
*/
void i810SpanRenderStart( GLcontext *ctx )
{
i810ContextPtr imesa = I810_CONTEXT(ctx);
I810_FIREVERTICES(imesa);
LOCK_HARDWARE(imesa);
i810RegetLockQuiescent( imesa );
}
void i810SpanRenderFinish( GLcontext *ctx )
{
i810ContextPtr imesa = I810_CONTEXT( ctx );
_swrast_flush( ctx );
UNLOCK_HARDWARE( imesa );
}
void i810InitSpanFuncs( GLcontext *ctx )
{
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
swdd->SetBuffer = i810SetBuffer;
#if 0
swdd->WriteRGBASpan = i810WriteRGBASpan_565;
swdd->WriteRGBSpan = i810WriteRGBSpan_565;
swdd->WriteMonoRGBASpan = i810WriteMonoRGBASpan_565;
swdd->WriteRGBAPixels = i810WriteRGBAPixels_565;
swdd->WriteMonoRGBAPixels = i810WriteMonoRGBAPixels_565;
swdd->ReadRGBASpan = i810ReadRGBASpan_565;
swdd->ReadRGBAPixels = i810ReadRGBAPixels_565;
#endif
#if 0
swdd->ReadDepthSpan = i810ReadDepthSpan_16;
swdd->WriteDepthSpan = i810WriteDepthSpan_16;
swdd->ReadDepthPixels = i810ReadDepthPixels_16;
swdd->WriteDepthPixels = i810WriteDepthPixels_16;
#endif
swdd->SpanRenderStart = i810SpanRenderStart;
swdd->SpanRenderFinish = i810SpanRenderFinish;
}
/**
* Plug in the Get/Put routines for the given driRenderbuffer.
*/
void
i810SetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
{
if (drb->Base.InternalFormat == GL_RGBA) {
/* always 565 RGB */
drb->Base.GetRow = i810ReadRGBASpan_565;
drb->Base.GetValues = i810ReadRGBAPixels_565;
drb->Base.PutRow = i810WriteRGBASpan_565;
drb->Base.PutRowRGB = i810WriteRGBSpan_565;
drb->Base.PutMonoRow = i810WriteMonoRGBASpan_565;
drb->Base.PutValues = i810WriteRGBAPixels_565;
drb->Base.PutMonoValues = i810WriteMonoRGBAPixels_565;
}
else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
drb->Base.GetRow = i810ReadDepthSpan_16;
drb->Base.GetValues = i810ReadDepthPixels_16;
drb->Base.PutRow = i810WriteDepthSpan_16;
drb->Base.PutMonoRow = i810WriteMonoDepthSpan_16;
drb->Base.PutValues = i810WriteDepthPixels_16;
drb->Base.PutMonoValues = NULL;
}
else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
/* should never get here */
drb->Base.GetRow = NULL;
drb->Base.GetValues = NULL;
drb->Base.PutRow = NULL;
drb->Base.PutMonoRow = NULL;
drb->Base.PutValues = NULL;
drb->Base.PutMonoValues = NULL;
}
else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
drb->Base.GetRow = NULL;
drb->Base.GetValues = NULL;
drb->Base.PutRow = NULL;
drb->Base.PutMonoRow = NULL;
drb->Base.PutValues = NULL;
drb->Base.PutMonoValues = NULL;
}
}
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