diff options
Diffstat (limited to 'src/mesa/drivers/dri/savage/savagespan.c')
| -rw-r--r-- | src/mesa/drivers/dri/savage/savagespan.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/savage/savagespan.c b/src/mesa/drivers/dri/savage/savagespan.c new file mode 100644 index 00000000000..aa13cfcb1d1 --- /dev/null +++ b/src/mesa/drivers/dri/savage/savagespan.c @@ -0,0 +1,313 @@ +/* + * 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 "mtypes.h" +#include "savagedd.h" +#include "savagespan.h" +#include "savageioctl.h" +#include "savage_bci.h" +#include "savage_3d_reg.h" +#include "swrast/swrast.h" + +#define DBG 0 + +#define LOCAL_VARS \ + __DRIdrawablePrivate *dPriv = imesa->mesa_drawable; \ + savageScreenPrivate *savageScreen = imesa->savageScreen; \ + GLuint cpp = savageScreen->cpp; \ + GLuint pitch = imesa->aperturePitch; \ + GLuint height = dPriv->h; \ + char *buf = (char *)(imesa->drawMap + \ + dPriv->x * cpp + \ + dPriv->y * pitch); \ + char *read_buf = (char *)(imesa->readMap + \ + dPriv->x * cpp + \ + dPriv->y * pitch); \ + GLuint p = SAVAGE_CONTEXT( ctx )->MonoColor; \ + (void) read_buf; (void) buf; (void) p + +#define LOCAL_DEPTH_VARS \ + __DRIdrawablePrivate *dPriv = imesa->mesa_drawable; \ + savageScreenPrivate *savageScreen = imesa->savageScreen; \ + GLuint zpp = savageScreen->zpp; \ + GLuint pitch = imesa->aperturePitch; \ + GLuint height = dPriv->h; \ + char *buf = (char *)(imesa->apertureBase[TARGET_DEPTH] + \ + dPriv->x * zpp + \ + dPriv->y * pitch) + +#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS + +#define INIT_MONO_PIXEL(p) + +#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() savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \ + WAIT_IDLE_EMPTY;\ + +#define HW_CLIPLOOP() \ + do { \ + __DRIdrawablePrivate *dPriv = imesa->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) + +#if 0 +#define HW_UNLOCK() \ + UNLOCK_HARDWARE(imesa); +#endif +#define HW_UNLOCK() { } + + +/* 16 bit, 565 rgb color spanline and pixel functions + */ +#undef INIT_MONO_PIXEL +#define INIT_MONO_PIXEL(p, color) \ + p = SAVAGEPACKCOLOR565( color[0], color[1], color[2] ) + +#define WRITE_RGBA( _x, _y, r, g, b, a ) \ +do{ \ + *(GLushort *)(buf + (_x<<1) + _y*pitch) = ( (((int)r & 0xf8) << 8) |\ + (((int)g & 0xfc) << 3) | \ + (((int)b & 0xf8) >> 3)); \ +}while(0) +#define WRITE_PIXEL( _x, _y, p ) \ +do{ \ + *(GLushort *)(buf + (_x<<1) + _y*pitch) = p; \ +}while(0) + +#define READ_RGBA( rgba, _x, _y ) \ +do { \ + GLushort p = *(GLushort *)(read_buf + (_x<<1) + _y*pitch); \ + rgba[0] = (((p >> 11) & 0x1f) * 255) >>5; \ + rgba[1] = (((p >> 5) & 0x3f) * 255) >>6; \ + rgba[2] = (((p >> 0) & 0x1f) * 255) >>5; \ + rgba[3] = 255; \ +} while(0) + +#define TAG(x) savage##x##_565 +#include "spantmp.h" + + +/* 32 bit, 8888 ARGB color spanline and pixel functions + */ +#undef INIT_MONO_PIXEL +#define INIT_MONO_PIXEL(p, color) \ + p = SAVAGEPACKCOLOR8888( color[0], color[1], color[2], color[3] ) + +#define WRITE_RGBA( _x, _y, r, g, b, a ) \ + *(GLuint *)(buf + (_x<<2) + _y*pitch) = ( ((GLuint)a << 24) | \ + ((GLuint)r << 16) | \ + ((GLuint)g << 8) | \ + ((GLuint)b )) +#define WRITE_PIXEL( _x, _y, p ) \ + *(GLuint *)(buf + (_x<<2) + _y*pitch) = p + +#define READ_RGBA( rgba, _x, _y ) \ +do { \ + GLuint p = *(GLuint *)(read_buf + (_x<<2) + _y*pitch); \ + rgba[0] = (p >> 16) & 0xFF; \ + rgba[1] = (p >> 8) & 0xFF; \ + rgba[2] = (p >> 0) & 0xFF; \ + rgba[3] = 0xFF; \ +} while(0) + +#define TAG(x) savage##x##_8888 +#include "spantmp.h" + + + + +/* 16 bit depthbuffer functions. + */ +#define WRITE_DEPTH( _x, _y, d ) \ +do{ \ + *(GLushort *)(buf + (_x<<1) + _y*pitch) = d; \ +}while(0) + +#define READ_DEPTH( d, _x, _y ) \ +do{ \ + d = *(GLushort *)(buf + (_x<<1) + _y*pitch); \ +}while(0) + +/* d = 0xffff; */ + +#define TAG(x) savage##x##_16 +#include "depthtmp.h" + + + + + +/* 8-bit stencil /24-bit depth depthbuffer functions. + */ +#define WRITE_DEPTH( _x, _y, d ) { \ + GLuint tmp = *(GLuint *)(buf + (_x<<2) + _y*pitch); \ + tmp &= 0xFF000000; \ + tmp |= d; \ + *(GLuint *)(buf + (_x<<2) + _y*pitch) = tmp; \ +} + +#define READ_DEPTH( d, _x, _y ) \ + d = *(GLuint *)(buf + (_x<<2) + _y*pitch) & 0x00FFFFFF; + +/* d = 0x00ffffff; */ + +#define TAG(x) savage##x##_8_24 +#include "depthtmp.h" + + +#define WRITE_STENCIL( _x, _y, d ) { \ + GLuint tmp = *(GLuint *)(buf + (_x<<2) + _y*pitch); \ + tmp &= 0x00FFFFFF; \ + tmp |= (((GLuint)d)<<24) & 0xFF000000; \ + *(GLuint *)(buf + (_x<<2) + _y*pitch) = tmp; \ +} + +#define READ_STENCIL( d, _x, _y ) \ + d = (GLstencil)((*(GLuint *)(buf + (_x<<2) + _y*pitch) & 0xFF000000) >> 24); + +#define TAG(x) savage##x##_8_24 +#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 savageDDSetBuffer(GLcontext *ctx, GLframebuffer *buffer, + GLuint bufferBit) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + char *map; + + assert( (bufferBit == FRONT_LEFT_BIT) || (bufferBit == BACK_LEFT_BIT) ); + + map = (bufferBit == FRONT_LEFT_BIT) + ? (char*)imesa->apertureBase[TARGET_FRONT] + : (char*)imesa->apertureBase[TARGET_BACK]; + + imesa->drawMap = map; + imesa->readMap = map; + + assert( (buffer == imesa->driDrawable->driverPrivate) + || (buffer == imesa->driReadable->driverPrivate) ); + + imesa->mesa_drawable = (buffer == imesa->driDrawable->driverPrivate) + ? imesa->driDrawable : imesa->driReadable; +} + + +void savageDDInitSpanFuncs( GLcontext *ctx ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); + + swdd->SetBuffer = savageDDSetBuffer; + + switch (imesa->savageScreen->cpp) + { + case 2: + swdd->WriteRGBASpan = savageWriteRGBASpan_565; + swdd->WriteRGBSpan = savageWriteRGBSpan_565; + swdd->WriteMonoRGBASpan = savageWriteMonoRGBASpan_565; + swdd->WriteRGBAPixels = savageWriteRGBAPixels_565; + swdd->WriteMonoRGBAPixels = savageWriteMonoRGBAPixels_565; + swdd->ReadRGBASpan = savageReadRGBASpan_565; + swdd->ReadRGBAPixels = savageReadRGBAPixels_565; + + break; + + case 4: + swdd->WriteRGBASpan = savageWriteRGBASpan_8888; + swdd->WriteRGBSpan = savageWriteRGBSpan_8888; + swdd->WriteMonoRGBASpan = savageWriteMonoRGBASpan_8888; + swdd->WriteRGBAPixels = savageWriteRGBAPixels_8888; + swdd->WriteMonoRGBAPixels = savageWriteMonoRGBAPixels_8888; + swdd->ReadRGBASpan = savageReadRGBASpan_8888; + swdd->ReadRGBAPixels = savageReadRGBAPixels_8888; + } + + switch (imesa->savageScreen->zpp) + { + case 2: + swdd->ReadDepthSpan = savageReadDepthSpan_16; + swdd->WriteDepthSpan = savageWriteDepthSpan_16; + swdd->ReadDepthPixels = savageReadDepthPixels_16; + swdd->WriteDepthPixels = savageWriteDepthPixels_16; + + break; + case 4: + swdd->ReadDepthSpan = savageReadDepthSpan_8_24; + swdd->WriteDepthSpan = savageWriteDepthSpan_8_24; + swdd->ReadDepthPixels = savageReadDepthPixels_8_24; + swdd->WriteDepthPixels = savageWriteDepthPixels_8_24; +#if HW_STENCIL + swdd->ReadStencilSpan = savageReadStencilSpan_8_24; + swdd->WriteStencilSpan = savageWriteStencilSpan_8_24; + swdd->ReadStencilPixels = savageReadStencilPixels_8_24; + swdd->WriteStencilPixels = savageWriteStencilPixels_8_24; +#endif + break; + + } + swdd->WriteCI8Span =NULL; + swdd->WriteCI32Span =NULL; + swdd->WriteMonoCISpan =NULL; + swdd->WriteCI32Pixels =NULL; + swdd->WriteMonoCIPixels =NULL; + swdd->ReadCI32Span =NULL; + swdd->ReadCI32Pixels =NULL; + + /* Pixel path fallbacks. + */ + ctx->Driver.Accum = _swrast_Accum; + ctx->Driver.Bitmap = _swrast_Bitmap; + ctx->Driver.CopyPixels = _swrast_CopyPixels; + ctx->Driver.DrawPixels = _swrast_DrawPixels; + ctx->Driver.ReadPixels = _swrast_ReadPixels; +} |