| /* $XFree86$ */ /* -*- 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); \ |
| __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); |
| } |
| } |