+++ /dev/null
-/**************************************************************************
- *
- * 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_span.h"
-#include "intel_ioctl.h"
-#include "swrast/swrast.h"
-
-
-#define DBG 0
-
-#define LOCAL_VARS \
- intelContextPtr intel = INTEL_CONTEXT(ctx); \
- __DRIdrawablePrivate *dPriv = intel->driDrawable; \
- intelScreenPrivate *intelScreen = intel->intelScreen; \
- GLuint pitch = intelScreen->backPitch * intelScreen->cpp; \
- GLuint height = dPriv->h; \
- char *buf = (char *)(intel->drawMap + \
- dPriv->x * intelScreen->cpp + \
- dPriv->y * pitch); \
- char *read_buf = (char *)(intel->readMap + \
- dPriv->x * intelScreen->cpp + \
- dPriv->y * pitch); \
- GLushort p; \
- (void) read_buf; (void) buf; (void) p
-
-#define LOCAL_DEPTH_VARS \
- intelContextPtr intel = INTEL_CONTEXT(ctx); \
- __DRIdrawablePrivate *dPriv = intel->driDrawable; \
- intelScreenPrivate *intelScreen = intel->intelScreen; \
- GLuint pitch = intelScreen->backPitch * intelScreen->cpp; \
- GLuint height = dPriv->h; \
- char *buf = (char *)(intelScreen->depth.map + \
- dPriv->x * intelScreen->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 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()
-
-#define HW_CLIPLOOP() \
- do { \
- __DRIdrawablePrivate *dPriv = intel->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_ENDCLIPLOOP() \
- } \
- } while (0)
-
-#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 >> 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 *)(read_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##_16
-#include "depthtmp.h"
-
-
-#undef LOCAL_VARS
-#define LOCAL_VARS \
- intelContextPtr intel = INTEL_CONTEXT(ctx); \
- __DRIdrawablePrivate *dPriv = intel->driDrawable; \
- intelScreenPrivate *intelScreen = intel->intelScreen; \
- GLuint pitch = intelScreen->backPitch * intelScreen->cpp; \
- GLuint height = dPriv->h; \
- char *buf = (char *)(intel->drawMap + \
- dPriv->x * intelScreen->cpp + \
- dPriv->y * pitch); \
- char *read_buf = (char *)(intel->readMap + \
- dPriv->x * intelScreen->cpp + \
- dPriv->y * pitch); \
- GLuint p; \
- (void) read_buf; (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 *)(read_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##_24_8
-#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##_24_8
-#include "stenciltmp.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 intelSetBuffer(GLcontext *ctx, GLframebuffer *colorBuffer,
- GLuint bufferBit)
-{
- intelContextPtr intel = INTEL_CONTEXT(ctx);
- if (bufferBit == DD_FRONT_LEFT_BIT) {
- intel->drawMap = (char *)intel->driScreen->pFB;
- intel->readMap = (char *)intel->driScreen->pFB;
- } else if (bufferBit == DD_BACK_LEFT_BIT) {
- intel->drawMap = intel->intelScreen->back.map;
- intel->readMap = intel->intelScreen->back.map;
- } else {
- ASSERT(0);
- }
-}
-
-
-/* Move locking out to get reasonable span performance.
- */
-void intelSpanRenderStart( GLcontext *ctx )
-{
- intelContextPtr intel = INTEL_CONTEXT(ctx);
-
- intelFlush(&intel->ctx);
- LOCK_HARDWARE(intel);
- intelWaitForIdle(intel);
-}
-
-void intelSpanRenderFinish( GLcontext *ctx )
-{
- intelContextPtr intel = INTEL_CONTEXT( ctx );
- _swrast_flush( ctx );
- UNLOCK_HARDWARE( intel );
-}
-
-void intelInitSpanFuncs( GLcontext *ctx )
-{
- intelContextPtr intel = INTEL_CONTEXT(ctx);
- intelScreenPrivate *intelScreen = intel->intelScreen;
-
- struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
-
- swdd->SetBuffer = intelSetBuffer;
-
- switch (intelScreen->fbFormat) {
- case DV_PF_555:
- swdd->WriteRGBASpan = intelWriteRGBASpan_555;
- swdd->WriteRGBSpan = intelWriteRGBSpan_555;
- swdd->WriteMonoRGBASpan = intelWriteMonoRGBASpan_555;
- swdd->WriteRGBAPixels = intelWriteRGBAPixels_555;
- swdd->WriteMonoRGBAPixels = intelWriteMonoRGBAPixels_555;
- swdd->ReadRGBASpan = intelReadRGBASpan_555;
- swdd->ReadRGBAPixels = intelReadRGBAPixels_555;
-
- swdd->ReadDepthSpan = intelReadDepthSpan_16;
- swdd->WriteDepthSpan = intelWriteDepthSpan_16;
- swdd->ReadDepthPixels = intelReadDepthPixels_16;
- swdd->WriteDepthPixels = intelWriteDepthPixels_16;
- break;
-
- case DV_PF_565:
- swdd->WriteRGBASpan = intelWriteRGBASpan_565;
- swdd->WriteRGBSpan = intelWriteRGBSpan_565;
- swdd->WriteMonoRGBASpan = intelWriteMonoRGBASpan_565;
- swdd->WriteRGBAPixels = intelWriteRGBAPixels_565;
- swdd->WriteMonoRGBAPixels = intelWriteMonoRGBAPixels_565;
- swdd->ReadRGBASpan = intelReadRGBASpan_565;
- swdd->ReadRGBAPixels = intelReadRGBAPixels_565;
-
- swdd->ReadDepthSpan = intelReadDepthSpan_16;
- swdd->WriteDepthSpan = intelWriteDepthSpan_16;
- swdd->ReadDepthPixels = intelReadDepthPixels_16;
- swdd->WriteDepthPixels = intelWriteDepthPixels_16;
- break;
-
- case DV_PF_8888:
- swdd->WriteRGBASpan = intelWriteRGBASpan_8888;
- swdd->WriteRGBSpan = intelWriteRGBSpan_8888;
- swdd->WriteMonoRGBASpan = intelWriteMonoRGBASpan_8888;
- swdd->WriteRGBAPixels = intelWriteRGBAPixels_8888;
- swdd->WriteMonoRGBAPixels = intelWriteMonoRGBAPixels_8888;
- swdd->ReadRGBASpan = intelReadRGBASpan_8888;
- swdd->ReadRGBAPixels = intelReadRGBAPixels_8888;
-
- swdd->ReadDepthSpan = intelReadDepthSpan_24_8;
- swdd->WriteDepthSpan = intelWriteDepthSpan_24_8;
- swdd->ReadDepthPixels = intelReadDepthPixels_24_8;
- swdd->WriteDepthPixels = intelWriteDepthPixels_24_8;
-
- swdd->WriteStencilSpan = intelWriteStencilSpan_24_8;
- swdd->ReadStencilSpan = intelReadStencilSpan_24_8;
- swdd->WriteStencilPixels = intelWriteStencilPixels_24_8;
- swdd->ReadStencilPixels = intelReadStencilPixels_24_8;
- break;
- }
-
- swdd->SpanRenderStart = intelSpanRenderStart;
- swdd->SpanRenderFinish = intelSpanRenderFinish;
-}
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