+++ /dev/null
-/*
-Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
-
-The Weather Channel (TM) funded Tungsten Graphics to develop the
-initial release of the Radeon 8500 driver under the XFree86 license.
-This notice must be preserved.
-
-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 THE COPYRIGHT OWNER(S) 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.
-
-**************************************************************************/
-
-/*
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#include "glheader.h"
-#include "imports.h"
-#include "swrast/swrast.h"
-#include "colormac.h"
-
-#include "r200_context.h"
-#include "radeon_ioctl.h"
-#include "r300_ioctl.h"
-#include "radeon_span.h"
-
-#define DBG 0
-
-#define LOCAL_VARS \
- radeonContextPtr radeon = RADEON_CONTEXT(ctx); \
- driRenderbuffer* drb = (driRenderbuffer*)rb; \
- __DRIscreenPrivate *sPriv = radeon->dri.screen; \
- __DRIdrawablePrivate *dPriv = radeon->dri.drawable; \
- GLuint pitch = drb->pitch * drb->cpp; \
- GLuint height = dPriv->h; \
- char *buf = (char *)(sPriv->pFB + \
- drb->offset + \
- (dPriv->x * drb->cpp) + \
- (dPriv->y * pitch)); \
- GLuint p; \
- (void) p
-
-#define LOCAL_DEPTH_VARS \
- radeonContextPtr radeon = RADEON_CONTEXT(ctx); \
- driRenderbuffer* drb = (driRenderbuffer*)rb; \
- __DRIscreenPrivate *sPriv = radeon->dri.screen; \
- __DRIdrawablePrivate *dPriv = radeon->dri.drawable; \
- GLuint pitch = drb->pitch; \
- GLuint height = dPriv->h; \
- GLuint xo = dPriv->x; \
- GLuint yo = dPriv->y; \
- char *buf = (char *)(sPriv->pFB + drb->offset); \
- (void) buf; (void) pitch
-
-#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
-
-#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 { \
- 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()
-
-/* ================================================================
- * Color buffer
- */
-
-/* 16 bit, RGB565 color spanline and pixel functions
- */
-#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 *)(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] = 0xff; \
- } while (0)
-
-#define TAG(x) radeon##x##_RGB565
-#include "spantmp.h"
-
-/* 32 bit, ARGB8888 color spanline and pixel functions
- */
-#undef INIT_MONO_PIXEL
-#define INIT_MONO_PIXEL(p, color) \
- p = PACK_COLOR_8888( color[3], color[0], color[1], color[2] )
-
-#define WRITE_RGBA( _x, _y, r, g, b, a ) \
-do { \
- *(GLuint *)(buf + _x*4 + _y*pitch) = ((b << 0) | \
- (g << 8) | \
- (r << 16) | \
- (a << 24) ); \
-} while (0)
-
-#define WRITE_PIXEL( _x, _y, p ) \
-do { \
- *(GLuint *)(buf + _x*4 + _y*pitch) = p; \
-} while (0)
-
-#define READ_RGBA( rgba, _x, _y ) \
-do { \
- volatile GLuint *ptr = (volatile GLuint *)(buf + _x*4 + _y*pitch); \
- GLuint p = *ptr; \
- 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) radeon##x##_ARGB8888
-#include "spantmp.h"
-
-/* ================================================================
- * Depth buffer
- */
-
-/* 16-bit depth buffer functions
- */
-#define WRITE_DEPTH( _x, _y, d ) \
- *(GLushort *)(buf + (_x + xo + (_y + yo)*pitch)*2 ) = d;
-
-#define READ_DEPTH( d, _x, _y ) \
- d = *(GLushort *)(buf + (_x + xo + (_y + yo)*pitch)*2 );
-
-#define TAG(x) radeon##x##_16_LINEAR
-#include "depthtmp.h"
-
-/* 24 bit depth, 8 bit stencil depthbuffer functions
- *
- * Careful: It looks like the R300 uses ZZZS byte order while the R200
- * uses SZZZ for 24 bit depth, 8 bit stencil mode.
- */
-#define WRITE_DEPTH( _x, _y, d ) \
-do { \
- GLuint offset = ((_x) + xo + ((_y) + yo)*pitch)*4; \
- GLuint tmp = *(GLuint *)(buf + offset); \
- tmp &= 0x000000ff; \
- tmp |= ((d << 8) & 0xffffff00); \
- *(GLuint *)(buf + offset) = tmp; \
-} while (0)
-
-#define READ_DEPTH( d, _x, _y ) \
-do { \
- d = (*(GLuint *)(buf + ((_x) + xo + ((_y) + yo)*pitch)*4) & 0xffffff00) >> 8; \
-} while(0)
-
-#define TAG(x) radeon##x##_24_8_LINEAR
-#include "depthtmp.h"
-
-/* ================================================================
- * Stencil buffer
- */
-
-/* 24 bit depth, 8 bit stencil depthbuffer functions
- */
-#define WRITE_STENCIL( _x, _y, d ) \
-do { \
- GLuint offset = (_x + xo + (_y + yo)*pitch)*4; \
- GLuint tmp = *(GLuint *)(buf + offset); \
- tmp &= 0xffffff00; \
- tmp |= (d) & 0xff; \
- *(GLuint *)(buf + offset) = tmp; \
-} while (0)
-
-#define READ_STENCIL( d, _x, _y ) \
-do { \
- GLuint offset = (_x + xo + (_y + yo)*pitch)*4; \
- GLuint tmp = *(GLuint *)(buf + offset); \
- d = tmp & 0x000000ff; \
-} while (0)
-
-#define TAG(x) radeon##x##_24_8_LINEAR
-#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 radeonSetBuffer(GLcontext * ctx,
- GLframebuffer * colorBuffer, GLuint bufferBit)
-{
- radeonContextPtr radeon = RADEON_CONTEXT(ctx);
- int buffer;
-
- switch (bufferBit) {
- case BUFFER_BIT_FRONT_LEFT:
- buffer = 0;
- break;
-
- case BUFFER_BIT_BACK_LEFT:
- buffer = 1;
- break;
-
- default:
- _mesa_problem(ctx, "Bad bufferBit in %s", __FUNCTION__);
- return;
- }
-
- if (radeon->doPageFlip && radeon->sarea->pfCurrentPage == 1)
- buffer ^= 1;
-
-#if 0
- fprintf(stderr, "%s: using %s buffer\n", __FUNCTION__,
- buffer ? "back" : "front");
-#endif
-
- if (buffer) {
- radeon->state.pixel.readOffset =
- radeon->radeonScreen->backOffset;
- radeon->state.pixel.readPitch =
- radeon->radeonScreen->backPitch;
- radeon->state.color.drawOffset =
- radeon->radeonScreen->backOffset;
- radeon->state.color.drawPitch =
- radeon->radeonScreen->backPitch;
- } else {
- radeon->state.pixel.readOffset =
- radeon->radeonScreen->frontOffset;
- radeon->state.pixel.readPitch =
- radeon->radeonScreen->frontPitch;
- radeon->state.color.drawOffset =
- radeon->radeonScreen->frontOffset;
- radeon->state.color.drawPitch =
- radeon->radeonScreen->frontPitch;
- }
-}
-
-/* Move locking out to get reasonable span performance (10x better
- * than doing this in HW_LOCK above). WaitForIdle() is the main
- * culprit.
- */
-
-static void radeonSpanRenderStart(GLcontext * ctx)
-{
- radeonContextPtr radeon = RADEON_CONTEXT(ctx);
-
- if (IS_FAMILY_R200(radeon))
- R200_FIREVERTICES((r200ContextPtr)radeon);
- else
- r300Flush(ctx);
-
- LOCK_HARDWARE(radeon);
- radeonWaitForIdleLocked(radeon);
-
- /* Read & rewrite the first pixel in the frame buffer. This should
- * be a noop, right? In fact without this conform fails as reading
- * from the framebuffer sometimes produces old results -- the
- * on-card read cache gets mixed up and doesn't notice that the
- * framebuffer has been updated.
- *
- * In the worst case this is buggy too as p might get the wrong
- * value first time, so really need a hidden pixel somewhere for this.
- */
- {
- int p;
- volatile int *read_buf =
- (volatile int *)(radeon->dri.screen->pFB +
- radeon->state.pixel.readOffset);
- p = *read_buf;
- *read_buf = p;
- }
-}
-
-static void radeonSpanRenderFinish(GLcontext * ctx)
-{
- radeonContextPtr radeon = RADEON_CONTEXT(ctx);
-
- _swrast_flush(ctx);
- UNLOCK_HARDWARE(radeon);
-}
-
-void radeonInitSpanFuncs(GLcontext * ctx)
-{
- radeonContextPtr radeon = RADEON_CONTEXT(ctx);
- struct swrast_device_driver *swdd =
- _swrast_GetDeviceDriverReference(ctx);
-
- swdd->SetBuffer = radeonSetBuffer;
-
- swdd->SpanRenderStart = radeonSpanRenderStart;
- swdd->SpanRenderFinish = radeonSpanRenderFinish;
-}
-
-/**
- * Plug in the Get/Put routines for the given driRenderbuffer.
- */
-void radeonSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
-{
- if (drb->Base.InternalFormat == GL_RGBA) {
- if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) {
- drb->Base.GetRow = radeonReadRGBASpan_RGB565;
- drb->Base.GetValues = radeonReadRGBAPixels_RGB565;
- drb->Base.PutRow = radeonWriteRGBASpan_RGB565;
- drb->Base.PutRowRGB = radeonWriteRGBSpan_RGB565;
- drb->Base.PutMonoRow = radeonWriteMonoRGBASpan_RGB565;
- drb->Base.PutValues = radeonWriteRGBAPixels_RGB565;
- drb->Base.PutMonoValues = radeonWriteMonoRGBAPixels_RGB565;
- }
- else {
- drb->Base.GetRow = radeonReadRGBASpan_ARGB8888;
- drb->Base.GetValues = radeonReadRGBAPixels_ARGB8888;
- drb->Base.PutRow = radeonWriteRGBASpan_ARGB8888;
- drb->Base.PutRowRGB = radeonWriteRGBSpan_ARGB8888;
- drb->Base.PutMonoRow = radeonWriteMonoRGBASpan_ARGB8888;
- drb->Base.PutValues = radeonWriteRGBAPixels_ARGB8888;
- drb->Base.PutMonoValues = radeonWriteMonoRGBAPixels_ARGB8888;
- }
- }
- else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
- drb->Base.GetRow = radeonReadDepthSpan_16_LINEAR;
- drb->Base.GetValues = radeonReadDepthPixels_16_LINEAR;
- drb->Base.PutRow = radeonWriteDepthSpan_16_LINEAR;
- drb->Base.PutMonoRow = radeonWriteMonoDepthSpan_16_LINEAR;
- drb->Base.PutValues = radeonWriteDepthPixels_16_LINEAR;
- drb->Base.PutMonoValues = NULL;
- }
- else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
- drb->Base.GetRow = radeonReadDepthSpan_24_8_LINEAR;
- drb->Base.GetValues = radeonReadDepthPixels_24_8_LINEAR;
- drb->Base.PutRow = radeonWriteDepthSpan_24_8_LINEAR;
- drb->Base.PutMonoRow = radeonWriteMonoDepthSpan_24_8_LINEAR;
- drb->Base.PutValues = radeonWriteDepthPixels_24_8_LINEAR;
- drb->Base.PutMonoValues = NULL;
- }
- else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
- drb->Base.GetRow = radeonReadStencilSpan_24_8_LINEAR;
- drb->Base.GetValues = radeonReadStencilPixels_24_8_LINEAR;
- drb->Base.PutRow = radeonWriteStencilSpan_24_8_LINEAR;
- drb->Base.PutMonoRow = radeonWriteMonoStencilSpan_24_8_LINEAR;
- drb->Base.PutValues = radeonWriteStencilPixels_24_8_LINEAR;
- drb->Base.PutMonoValues = NULL;
- }
-}
-
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