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/* $XFree86$ */ /* -*- 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); \
mach64ScreenRec *mach64Screen = mmesa->mach64Screen; \
__DRIscreenPrivate *driScreen = mmesa->driScreen; \
__DRIdrawablePrivate *dPriv = mmesa->driDrawable; \
GLuint pitch = mmesa->drawPitch * mach64Screen->cpp; \
GLuint height = dPriv->h; \
char *buf = (char *)(driScreen->pFB + \
mmesa->drawOffset + \
(dPriv->x * mach64Screen->cpp) + \
(dPriv->y * pitch)); \
char *read_buf = (char *)(driScreen->pFB + \
mmesa->readOffset + \
(dPriv->x * mach64Screen->cpp) + \
(dPriv->y * pitch)); \
GLushort p; \
(void) read_buf; (void) buf; (void) p
#define LOCAL_DEPTH_VARS \
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); \
mach64ScreenRec *mach64Screen = mmesa->mach64Screen; \
__DRIdrawablePrivate *dPriv = mmesa->driDrawable; \
__DRIscreenPrivate *driScreen = mmesa->driScreen; \
GLuint pitch = mach64Screen->depthPitch * 2; \
GLuint height = dPriv->h; \
char *buf = (char *)(driScreen->pFB + \
mach64Screen->depthOffset + \
dPriv->x * 2 + \
dPriv->y * pitch)
#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
#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
#include "spantmp2.h"
/* ================================================================
* Depth buffer
*/
/* 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) mach64##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 mach64DDSetBuffer( GLcontext *ctx,
GLframebuffer *colorBuffer,
GLuint bufferBit )
{
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
switch ( bufferBit ) {
case BUFFER_BIT_FRONT_LEFT:
if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
fprintf(stderr,"%s: BUFFER_BIT_FRONT_LEFT\n", __FUNCTION__);
mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->frontOffset;
mmesa->drawPitch = mmesa->readPitch = mmesa->mach64Screen->frontPitch;
break;
case BUFFER_BIT_BACK_LEFT:
if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
fprintf(stderr,"%s: BUFFER_BIT_BACK_LEFT\n", __FUNCTION__);
mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->backOffset;
mmesa->drawPitch = mmesa->readPitch = mmesa->mach64Screen->backPitch;
break;
default:
break;
}
}
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->SetBuffer = mach64DDSetBuffer;
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) {
drb->Base.GetRow = mach64ReadDepthSpan_16;
drb->Base.GetValues = mach64ReadDepthPixels_16;
drb->Base.PutRow = mach64WriteDepthSpan_16;
drb->Base.PutMonoRow = mach64WriteMonoDepthSpan_16;
drb->Base.PutValues = mach64WriteDepthPixels_16;
drb->Base.PutMonoValues = NULL;
}
else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
/* never */
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) {
/* never */
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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