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/* -*- mode: c; c-basic-offset: 3 -*- */
/*
* Copyright 2000 Gareth Hughes
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* GARETH HUGHES 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.
*/
/*
* Authors:
* Gareth Hughes <gareth@valinux.com>
* Leif Delgass <ldelgass@retinalburn.net>
* Jos�Fonseca <j_r_fonseca@yahoo.co.uk>
*/
#include "mach64_context.h"
#include "mach64_ioctl.h"
#include "mach64_state.h"
#include "mach64_span.h"
#include "swrast/swrast.h"
#define DBG 0
#define LOCAL_VARS \
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); \
__DRIscreenPrivate *sPriv = mmesa->driScreen; \
__DRIdrawablePrivate *dPriv = mmesa->driDrawable; \
driRenderbuffer *drb = (driRenderbuffer *) rb; \
GLuint height = dPriv->h; \
GLushort p; \
(void) p;
#define LOCAL_DEPTH_VARS \
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); \
__DRIdrawablePrivate *dPriv = mmesa->driDrawable; \
__DRIscreenPrivate *driScreen = mmesa->driScreen; \
driRenderbuffer *drb = (driRenderbuffer *) rb; \
GLuint height = dPriv->h; \
char *buf = (char *)(driScreen->pFB + drb->offset + \
(dPriv->x + dPriv->y * drb->pitch) * 2)
#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
#define Y_FLIP( _y ) (height - _y - 1)
#define HW_LOCK()
/* FIXME could/should we use dPriv->numClipRects like the other drivers? */
#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()
/* ================================================================
* Color buffer
*/
/* 16 bit, RGB565 color spanline and pixel functions
*/
#define SPANTMP_PIXEL_FMT GL_RGB
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
#define TAG(x) mach64##x##_RGB565
#define TAG2(x,y) mach64##x##_RGB565##y
#define GET_PTR(X,Y) (sPriv->pFB + drb->offset \
+ ((dPriv->y + (Y)) * drb->pitch + (dPriv->x + (X))) * drb->cpp)
#include "spantmp2.h"
/* 32 bit, ARGB8888 color spanline and pixel functions
*/
/* FIXME the old code always read back alpha as 0xff, i.e. fully opaque.
Was there a reason to do so ? If so that'll won't work with that template... */
#define SPANTMP_PIXEL_FMT GL_BGRA
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
#define TAG(x) mach64##x##_ARGB8888
#define TAG2(x,y) mach64##x##_ARGB8888##y
#define GET_PTR(X,Y) (sPriv->pFB + drb->offset \
+ ((dPriv->y + (Y)) * drb->pitch + (dPriv->x + (X))) * drb->cpp)
#include "spantmp2.h"
/* ================================================================
* Depth buffer
*/
/* 16 bit depthbuffer functions.
*/
#define VALUE_TYPE GLushort
#define WRITE_DEPTH( _x, _y, d ) \
*(GLushort *)(buf + ((_x) + (_y) * drb->pitch) * 2) = d;
#define READ_DEPTH( d, _x, _y ) \
d = *(GLushort *)(buf + ((_x) + (_y) * drb->pitch) * 2);
#define TAG(x) mach64##x##_z16
#include "depthtmp.h"
static void mach64SpanRenderStart( GLcontext *ctx )
{
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
LOCK_HARDWARE( mmesa );
FINISH_DMA_LOCKED( mmesa );
}
static void mach64SpanRenderFinish( GLcontext *ctx )
{
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
_swrast_flush( ctx );
UNLOCK_HARDWARE( mmesa );
}
void mach64DDInitSpanFuncs( GLcontext *ctx )
{
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
swdd->SpanRenderStart = mach64SpanRenderStart;
swdd->SpanRenderFinish = mach64SpanRenderFinish;
}
/**
* Plug in the Get/Put routines for the given driRenderbuffer.
*/
void
mach64SetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
{
if (drb->Base.InternalFormat == GL_RGBA) {
if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) {
mach64InitPointers_RGB565(&drb->Base);
}
else {
mach64InitPointers_ARGB8888(&drb->Base);
}
}
else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
mach64InitDepthPointers_z16(&drb->Base);
}
}
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