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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "glheader.h"
#include "macros.h"
#include "mtypes.h"
#include "colormac.h"
#include "intel_screen.h"
#include "intel_regions.h"
#include "intel_span.h"
#include "intel_ioctl.h"
#include "intel_tex.h"
#include "swrast/swrast.h"
#undef DBG
#define DBG 0
#define LOCAL_VARS \
struct intel_context *intel = intel_context(ctx); \
__DRIdrawablePrivate *dPriv = intel->driDrawable; \
driRenderbuffer *drb = (driRenderbuffer *) rb; \
GLuint pitch = drb->pitch; \
GLuint height = dPriv->h; \
char *buf = (char *) drb->Base.Data + \
dPriv->x * drb->cpp + \
dPriv->y * pitch; \
GLushort p; \
(void) buf; (void) p
#define LOCAL_DEPTH_VARS \
struct intel_context *intel = intel_context(ctx); \
__DRIdrawablePrivate *dPriv = intel->driDrawable; \
driRenderbuffer *drb = (driRenderbuffer *) rb; \
GLuint pitch = drb->pitch; \
GLuint height = dPriv->h; \
char *buf = (char *) drb->Base.Data + \
dPriv->x * drb->cpp + \
dPriv->y * pitch
#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
#define INIT_MONO_PIXEL(p,color)\
p = INTEL_PACKCOLOR565(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 *)(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) intel##x##_565
#include "spantmp.h"
/* 15 bit, 555 rgb color spanline and pixel functions
*/
#define WRITE_RGBA( _x, _y, r, g, b, a ) \
*(GLushort *)(buf + _x*2 + _y*pitch) = (((r & 0xf8) << 7) | \
((g & 0xf8) << 3) | \
((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 *)(buf + _x*2 + _y*pitch); \
rgba[0] = (p >> 7) & 0xf8; \
rgba[1] = (p >> 3) & 0xf8; \
rgba[2] = (p << 3) & 0xf8; \
rgba[3] = 255; \
} while(0)
#define TAG(x) intel##x##_555
#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) intel##x##_z16
#include "depthtmp.h"
#undef LOCAL_VARS
#define LOCAL_VARS \
struct intel_context *intel = intel_context(ctx); \
__DRIdrawablePrivate *dPriv = intel->driDrawable; \
driRenderbuffer *drb = (driRenderbuffer *) rb; \
GLuint pitch = drb->pitch; \
GLuint height = dPriv->h; \
char *buf = (char *)drb->Base.Data + \
dPriv->x * drb->cpp + \
dPriv->y * pitch; \
GLuint p; \
(void) buf; (void) p
#undef INIT_MONO_PIXEL
#define INIT_MONO_PIXEL(p,color)\
p = INTEL_PACKCOLOR8888(color[0],color[1],color[2],color[3])
/* 32 bit, 8888 argb color spanline and pixel functions
*/
#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 *)(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) intel##x##_8888
#include "spantmp.h"
/* 24/8 bit interleaved depth/stencil functions
*/
#define WRITE_DEPTH( _x, _y, d ) { \
GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*pitch); \
tmp &= 0xff000000; \
tmp |= (d) & 0xffffff; \
*(GLuint *)(buf + (_x)*4 + (_y)*pitch) = tmp; \
}
#define READ_DEPTH( d, _x, _y ) \
d = *(GLuint *)(buf + (_x)*4 + (_y)*pitch) & 0xffffff;
#define TAG(x) intel##x##_z24_s8
#include "depthtmp.h"
#define WRITE_STENCIL( _x, _y, d ) { \
GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*pitch); \
tmp &= 0xffffff; \
tmp |= ((d)<<24); \
*(GLuint *)(buf + (_x)*4 + (_y)*pitch) = tmp; \
}
#define READ_STENCIL( d, _x, _y ) \
d = *(GLuint *)(buf + (_x)*4 + (_y)*pitch) >> 24;
#define TAG(x) intel##x##_z24_s8
#include "stenciltmp.h"
/* Move locking out to get reasonable span performance.
*/
void intelSpanRenderStart( GLcontext *ctx )
{
struct intel_context *intel = intel_context(ctx);
LOCK_HARDWARE(intel);
#if 0
if (intel->flushBeforeFallback) {
intelFinish(&intel->ctx);
intel->flushBeforeFallback = GL_FALSE;
}
#endif
/* Just map the framebuffer and all textures. Bufmgr code will
* take care of waiting on the necessary fences:
*/
intel_region_map(intel, intel->front_region);
intel_region_map(intel, intel->back_region);
intel_region_map(intel, intel->depth_region);
}
void intelSpanRenderFinish( GLcontext *ctx )
{
struct intel_context *intel = intel_context( ctx );
_swrast_flush( ctx );
/* Now unmap the framebuffer:
*/
intel_region_unmap(intel, intel->front_region);
intel_region_unmap(intel, intel->back_region);
intel_region_unmap(intel, intel->depth_region);
UNLOCK_HARDWARE( intel );
}
void intelInitSpanFuncs( GLcontext *ctx )
{
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
swdd->SpanRenderStart = intelSpanRenderStart;
swdd->SpanRenderFinish = intelSpanRenderFinish;
}
/**
* Plug in the Get/Put routines for the given driRenderbuffer.
*/
void
intelSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
{
if (drb->Base.InternalFormat == GL_RGBA) {
if (vis->redBits == 5 && vis->greenBits == 5 && vis->blueBits == 5) {
intelInitPointers_555(&drb->Base);
}
else if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) {
intelInitPointers_565(&drb->Base);
}
else {
assert(vis->redBits == 8);
assert(vis->greenBits == 8);
assert(vis->blueBits == 8);
intelInitPointers_8888(&drb->Base);
}
}
else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
intelInitDepthPointers_z16(&drb->Base);
}
else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
intelInitDepthPointers_z24_s8(&drb->Base);
}
else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
intelInitStencilPointers_z24_s8(&drb->Base);
}
}
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