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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. 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
* VIA, S3 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 "via_context.h"
#include "via_span.h"
#include "via_ioctl.h"
#include "swrast/swrast.h"
#define DBG 0
#define LOCAL_VARS \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
viaScreenPrivate *viaScreen = vmesa->viaScreen; \
GLuint pitch = vmesa->drawPitch; \
GLuint height = dPriv->h; \
GLushort p; \
char *buf = (char *)(vmesa->drawMap + \
dPriv->x * viaScreen->bytesPerPixel + \
dPriv->y * pitch); \
char *read_buf = (char *)(vmesa->readMap + \
dPriv->x * viaScreen->bytesPerPixel + \
dPriv->y * pitch); \
(void)read_buf; (void)buf; (void)p
#define LOCAL_DEPTH_VARS \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
viaScreenPrivate *viaScreen = vmesa->viaScreen; \
GLuint pitch = viaScreen->backPitch; \
GLuint height = dPriv->h; \
char *buf = (char *)(vmesa->depth.map + \
dPriv->x * 2 + \
dPriv->y * pitch)
#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 Y_FLIP(_y) (height - _y - 1)
#define HW_LOCK() \
viaContextPtr vmesa = VIA_CONTEXT(ctx); \
LOCK_HARDWARE_QUIESCENT(vmesa);
/*=* [DBG] csmash saam : bitmap option menu can't be drawn in saam *=*/
/*#define HW_CLIPLOOP() \
do { \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
int _nc = dPriv->numClipRects; \
while (_nc--) { \
int minx = dPriv->pClipRects[_nc].x1 - dPriv->x; \
int miny = dPriv->pClipRects[_nc].y1 - dPriv->y; \
int maxx = dPriv->pClipRects[_nc].x2 - dPriv->x; \
int maxy = dPriv->pClipRects[_nc].y2 - dPriv->y;*/
#define HW_CLIPLOOP() \
do { \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
int _nc = dPriv->numClipRects; \
GLuint scrn = vmesa->saam & S_MASK; \
if(scrn == S1) _nc = 1; \
while (_nc--) { \
int minx; \
int miny; \
int maxx; \
int maxy; \
if (!vmesa->saam) { \
minx = dPriv->pClipRects[_nc].x1 - dPriv->x; \
miny = dPriv->pClipRects[_nc].y1 - dPriv->y; \
maxx = dPriv->pClipRects[_nc].x2 - dPriv->x; \
maxy = dPriv->pClipRects[_nc].y2 - dPriv->y; \
} \
else { \
minx = -10000; \
miny = -10000; \
maxx = 10000; \
maxy = 10000; \
}
/*else if (scrn == S0) { \
minx = dPriv->pClipRects[_nc].x1 - dPriv->x; \
miny = dPriv->pClipRects[_nc].y1 - dPriv->y; \
maxx = dPriv->pClipRects[_nc].x2 - dPriv->x; \
maxy = dPriv->pClipRects[_nc].y2 - dPriv->y; \
} \
else if (scrn == S1) { \
drm_clip_rect_t *b = vmesa->sarea->boxes; \
minx = b->x1; \
miny = b->y1; \
maxx = b->x2; \
maxy = b->y2; \
} \
else { \
drm_clip_rect_t *b = vmesa->sarea->boxes + vmesa->numClipRects;\
minx = b->x1; \
miny = b->y1; \
maxx = b->x2; \
maxy = b->y2; \
}*/
#define HW_ENDCLIPLOOP() \
} \
} while (0)
#define HW_UNLOCK() \
UNLOCK_HARDWARE(vmesa);
/* 16 bit, 565 rgb color spanline and pixel functions
*/
/*=* [DBG] csmash : fix options worng position *=*/
/*#define LOCAL_VARS \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
GLuint pitch = vmesa->drawPitch; \
GLuint height = dPriv->h; \
GLushort p; \
char *buf = (char *)(vmesa->drawMap + \
dPriv->x * 2 + \
dPriv->y * pitch); \
char *read_buf = (char *)(vmesa->readMap + \
dPriv->x * 2 + \
dPriv->y * pitch); \
(void)read_buf; (void)buf; (void)p*/
#undef LOCAL_VARS
#define LOCAL_VARS \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
GLuint pitch = vmesa->drawPitch; \
GLuint height = dPriv->h; \
GLushort p; \
char *buf, *read_buf; \
p = 0; \
if (vmesa->glCtx->Color._DrawDestMask[0] == __GL_BACK_BUFFER_MASK) { \
buf = (char *)(vmesa->drawMap); \
read_buf = (char *)(vmesa->readMap); \
} \
else { \
buf = (char *)(vmesa->drawMap + \
dPriv->x * 2 + \
dPriv->y * pitch); \
read_buf = (char *)(vmesa->readMap + \
dPriv->x * 2 + \
dPriv->y * pitch); \
}
#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 >> 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) via##x##_565
#include "spantmp.h"
/* 32 bit, 8888 argb color spanline and pixel functions
*/
#undef LOCAL_VARS
#undef LOCAL_DEPTH_VARS
#define LOCAL_VARS \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
GLuint pitch = vmesa->drawPitch; \
GLuint height = dPriv->h; \
GLuint p; \
char *buf, *read_buf; \
p = 0; \
if (vmesa->glCtx->Color._DrawDestMask[0] == __GL_BACK_BUFFER_MASK) { \
buf = (char *)(vmesa->drawMap); \
read_buf = (char *)(vmesa->readMap); \
} \
else { \
buf = (char *)(vmesa->drawMap + \
dPriv->x * 4 + \
dPriv->y * pitch); \
read_buf = (char *)(vmesa->readMap + \
dPriv->x * 4 + \
dPriv->y * pitch); \
}
#define GET_SRC_PTR(_x, _y) (read_buf + _x * 4 + _y * pitch)
#define GET_DST_PTR(_x, _y) ( buf + _x * 4 + _y * pitch)
#define SPANTMP_PIXEL_FMT GL_BGRA
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
#define TAG(x) via##x##_8888
#define TAG2(x,y) via##x##_8888##y
#include "spantmp2.h"
/* 16 bit depthbuffer functions.
*/
/*=* John Sheng [2003.6.16] fix exy press 'i' dirty screen *=*/
/*#define LOCAL_DEPTH_VARS \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
GLuint pitch = vmesa->depth.pitch; \
GLuint height = dPriv->h; \
char *buf = (char *)(vmesa->depth.map + \
dPriv->x * 2 + \
dPriv->y * pitch) */
#define LOCAL_DEPTH_VARS \
__DRIdrawablePrivate *dPriv = vmesa->driDrawable; \
/*viaScreenPrivate *viaScreen = vmesa->viaScreen;*/ \
GLuint pitch = vmesa->depth.pitch; \
GLuint height = dPriv->h; \
char *buf = (char *)(vmesa->depth.map)
#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) via##x##_16
#include "depthtmp.h"
/* 32 bit depthbuffer functions.
*/
#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) via##x##_32
#include "depthtmp.h"
/* 24/8 bit depthbuffer functions.
*/
/*
#define WRITE_DEPTH(_x, _y, d) { \
GLuint tmp = *(GLuint *)(buf + _x * 4 + y * pitch); \
tmp &= 0xff; \
tmp |= (d) & 0xffffff00; \
*(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) via##x##_24_8
#include "depthtmp.h"
*/
static void viaSetBuffer(GLcontext *ctx, GLframebuffer *colorBuffer,
GLuint bufferBit)
{
viaContextPtr vmesa = VIA_CONTEXT(ctx);
#ifdef DEBUG
if (VIA_DEBUG) fprintf(stderr, "%s in\n", __FUNCTION__);
#endif
if (bufferBit == DD_FRONT_LEFT_BIT) {
vmesa->drawMap = (char *)vmesa->driScreen->pFB;
vmesa->readMap = (char *)vmesa->driScreen->pFB;
vmesa->drawPitch = vmesa->front.pitch;
vmesa->readPitch = vmesa->front.pitch;
}
else if (bufferBit == DD_BACK_LEFT_BIT) {
vmesa->drawMap = vmesa->back.map;
vmesa->readMap = vmesa->back.map;
vmesa->drawPitch = vmesa->back.pitch;
vmesa->readPitch = vmesa->back.pitch;
}
else {
ASSERT(0);
}
#ifdef DEBUG
if (VIA_DEBUG) fprintf(stderr, "%s out\n", __FUNCTION__);
#endif
}
void viaInitSpanFuncs(GLcontext *ctx)
{
viaContextPtr vmesa = VIA_CONTEXT(ctx);
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
swdd->SetBuffer = viaSetBuffer;
#ifdef DEBUG
if (VIA_DEBUG) fprintf(stderr, "%s in\n", __FUNCTION__);
#endif
if (vmesa->viaScreen->bitsPerPixel == 0x10) {
swdd->WriteRGBASpan = viaWriteRGBASpan_565;
swdd->WriteRGBSpan = viaWriteRGBSpan_565;
swdd->WriteMonoRGBASpan = viaWriteMonoRGBASpan_565;
swdd->WriteRGBAPixels = viaWriteRGBAPixels_565;
swdd->WriteMonoRGBAPixels = viaWriteMonoRGBAPixels_565;
swdd->ReadRGBASpan = viaReadRGBASpan_565;
swdd->ReadRGBAPixels = viaReadRGBAPixels_565;
}
else if (vmesa->viaScreen->bitsPerPixel == 0x20) {
viaInitPointers_8888( swdd );
}
else
ASSERT(0);
if (vmesa->glCtx->Visual.depthBits == 0x10) {
swdd->ReadDepthSpan = viaReadDepthSpan_16;
swdd->WriteDepthSpan = viaWriteDepthSpan_16;
swdd->ReadDepthPixels = viaReadDepthPixels_16;
swdd->WriteDepthPixels = viaWriteDepthPixels_16;
}
else if (vmesa->glCtx->Visual.depthBits == 0x20) {
swdd->ReadDepthSpan = viaReadDepthSpan_32;
swdd->WriteDepthSpan = viaWriteDepthSpan_32;
swdd->ReadDepthPixels = viaReadDepthPixels_32;
swdd->WriteDepthPixels = viaWriteDepthPixels_32;
}
swdd->WriteCI8Span = NULL;
swdd->WriteCI32Span = NULL;
swdd->WriteMonoCISpan = NULL;
swdd->WriteCI32Pixels = NULL;
swdd->WriteMonoCIPixels = NULL;
swdd->ReadCI32Span = NULL;
swdd->ReadCI32Pixels = NULL;
#ifdef DEBUG
if (VIA_DEBUG) fprintf(stderr, "%s out\n", __FUNCTION__);
#endif
}
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