+++ /dev/null
-/**************************************************************************
-
-Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
-Copyright 2000, 2001 ATI Technologies Inc., Ontario, Canada, and
- VA Linux Systems Inc., Fremont, California.
-
-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.
-
-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 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:
- * Kevin E. Martin <martin@valinux.com>
- * Gareth Hughes <gareth@valinux.com>
- * Keith Whitwell <keith@tungstengraphics.com>
- *
- */
-
-#include "main/glheader.h"
-#include "swrast/swrast.h"
-
-#include "r300_state.h"
-#include "radeon_ioctl.h"
-#include "r300_ioctl.h"
-#include "radeon_span.h"
-
-#include "drirenderbuffer.h"
-
-#define DBG 0
-
-/*
- * Note that all information needed to access pixels in a renderbuffer
- * should be obtained through the gl_renderbuffer parameter, not per-context
- * information.
- */
-#define LOCAL_VARS \
- driRenderbuffer *drb = (driRenderbuffer *) rb; \
- const __DRIdrawablePrivate *dPriv = drb->dPriv; \
- const GLuint bottom = dPriv->h - 1; \
- GLubyte *buf = (GLubyte *) drb->flippedData \
- + (dPriv->y * drb->flippedPitch + dPriv->x) * drb->cpp; \
- GLuint p; \
- (void) p;
-
-#define LOCAL_DEPTH_VARS \
- driRenderbuffer *drb = (driRenderbuffer *) rb; \
- const __DRIdrawablePrivate *dPriv = drb->dPriv; \
- const GLuint bottom = dPriv->h - 1; \
- GLuint xo = dPriv->x; \
- GLuint yo = dPriv->y; \
- GLubyte *buf = (GLubyte *) drb->Base.Data;
-
-#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
-
-#define Y_FLIP(Y) (bottom - (Y))
-
-#define HW_LOCK()
-
-#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) radeon##x##_RGB565
-#define TAG2(x,y) radeon##x##_RGB565##y
-#define GET_PTR(X,Y) (buf + ((Y) * drb->flippedPitch + (X)) * 2)
-#include "spantmp2.h"
-
-/* 32 bit, ARGB8888 color spanline and pixel functions
- */
-#define SPANTMP_PIXEL_FMT GL_BGRA
-#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
-
-#define TAG(x) radeon##x##_ARGB8888
-#define TAG2(x,y) radeon##x##_ARGB8888##y
-#define GET_PTR(X,Y) (buf + ((Y) * drb->flippedPitch + (X)) * 4)
-#include "spantmp2.h"
-
-/* ================================================================
- * Depth buffer
- */
-
-/* The Radeon family has depth tiling on all the time, so we have to convert
- * the x,y coordinates into the memory bus address (mba) in the same
- * manner as the engine. In each case, the linear block address (ba)
- * is calculated, and then wired with x and y to produce the final
- * memory address.
- * The chip will do address translation on its own if the surface registers
- * are set up correctly. It is not quite enough to get it working with hyperz
- * too...
- */
-
-static GLuint radeon_mba_z32(const driRenderbuffer * drb, GLint x, GLint y)
-{
- GLuint pitch = drb->pitch;
- if (drb->depthHasSurface) {
- return 4 * (x + y * pitch);
- } else {
- GLuint ba, address = 0; /* a[0..1] = 0 */
-
-#ifdef COMPILE_R300
- ba = (y / 8) * (pitch / 8) + (x / 8);
-#else
- ba = (y / 16) * (pitch / 16) + (x / 16);
-#endif
-
- address |= (x & 0x7) << 2; /* a[2..4] = x[0..2] */
- address |= (y & 0x3) << 5; /* a[5..6] = y[0..1] */
- address |= (((x & 0x10) >> 2) ^ (y & 0x4)) << 5; /* a[7] = x[4] ^ y[2] */
- address |= (ba & 0x3) << 8; /* a[8..9] = ba[0..1] */
-
- address |= (y & 0x8) << 7; /* a[10] = y[3] */
- address |= (((x & 0x8) << 1) ^ (y & 0x10)) << 7; /* a[11] = x[3] ^ y[4] */
- address |= (ba & ~0x3) << 10; /* a[12..] = ba[2..] */
-
- return address;
- }
-}
-
-static INLINE GLuint
-radeon_mba_z16(const driRenderbuffer * drb, GLint x, GLint y)
-{
- GLuint pitch = drb->pitch;
- if (drb->depthHasSurface) {
- return 2 * (x + y * pitch);
- } else {
- GLuint ba, address = 0; /* a[0] = 0 */
-
- ba = (y / 16) * (pitch / 32) + (x / 32);
-
- address |= (x & 0x7) << 1; /* a[1..3] = x[0..2] */
- address |= (y & 0x7) << 4; /* a[4..6] = y[0..2] */
- address |= (x & 0x8) << 4; /* a[7] = x[3] */
- address |= (ba & 0x3) << 8; /* a[8..9] = ba[0..1] */
- address |= (y & 0x8) << 7; /* a[10] = y[3] */
- address |= ((x & 0x10) ^ (y & 0x10)) << 7; /* a[11] = x[4] ^ y[4] */
- address |= (ba & ~0x3) << 10; /* a[12..] = ba[2..] */
-
- return address;
- }
-}
-
-/* 16-bit depth buffer functions
- */
-#define VALUE_TYPE GLushort
-
-#define WRITE_DEPTH( _x, _y, d ) \
- *(GLushort *)(buf + radeon_mba_z16( drb, _x + xo, _y + yo )) = d;
-
-#define READ_DEPTH( d, _x, _y ) \
- d = *(GLushort *)(buf + radeon_mba_z16( drb, _x + xo, _y + yo ));
-
-#define TAG(x) radeon##x##_z16
-#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 VALUE_TYPE GLuint
-
-#ifdef COMPILE_R300
-#define WRITE_DEPTH( _x, _y, d ) \
-do { \
- GLuint offset = radeon_mba_z32( drb, _x + xo, _y + yo ); \
- GLuint tmp = *(GLuint *)(buf + offset); \
- tmp &= 0x000000ff; \
- tmp |= ((d << 8) & 0xffffff00); \
- *(GLuint *)(buf + offset) = tmp; \
-} while (0)
-#else
-#define WRITE_DEPTH( _x, _y, d ) \
-do { \
- GLuint offset = radeon_mba_z32( drb, _x + xo, _y + yo ); \
- GLuint tmp = *(GLuint *)(buf + offset); \
- tmp &= 0xff000000; \
- tmp |= ((d) & 0x00ffffff); \
- *(GLuint *)(buf + offset) = tmp; \
-} while (0)
-#endif
-
-#ifdef COMPILE_R300
-#define READ_DEPTH( d, _x, _y ) \
- do { \
- d = (*(GLuint *)(buf + radeon_mba_z32( drb, _x + xo, \
- _y + yo )) & 0xffffff00) >> 8; \
- }while(0)
-#else
-#define READ_DEPTH( d, _x, _y ) \
- d = *(GLuint *)(buf + radeon_mba_z32( drb, _x + xo, \
- _y + yo )) & 0x00ffffff;
-#endif
-
-#define TAG(x) radeon##x##_z24_s8
-#include "depthtmp.h"
-
-/* ================================================================
- * Stencil buffer
- */
-
-/* 24 bit depth, 8 bit stencil depthbuffer functions
- */
-#ifdef COMPILE_R300
-#define WRITE_STENCIL( _x, _y, d ) \
-do { \
- GLuint offset = radeon_mba_z32( drb, _x + xo, _y + yo ); \
- GLuint tmp = *(GLuint *)(buf + offset); \
- tmp &= 0xffffff00; \
- tmp |= (d) & 0xff; \
- *(GLuint *)(buf + offset) = tmp; \
-} while (0)
-#else
-#define WRITE_STENCIL( _x, _y, d ) \
-do { \
- GLuint offset = radeon_mba_z32( drb, _x + xo, _y + yo ); \
- GLuint tmp = *(GLuint *)(buf + offset); \
- tmp &= 0x00ffffff; \
- tmp |= (((d) & 0xff) << 24); \
- *(GLuint *)(buf + offset) = tmp; \
-} while (0)
-#endif
-
-#ifdef COMPILE_R300
-#define READ_STENCIL( d, _x, _y ) \
-do { \
- GLuint offset = radeon_mba_z32( drb, _x + xo, _y + yo ); \
- GLuint tmp = *(GLuint *)(buf + offset); \
- d = tmp & 0x000000ff; \
-} while (0)
-#else
-#define READ_STENCIL( d, _x, _y ) \
-do { \
- GLuint offset = radeon_mba_z32( drb, _x + xo, _y + yo ); \
- GLuint tmp = *(GLuint *)(buf + offset); \
- d = (tmp & 0xff000000) >> 24; \
-} while (0)
-#endif
-
-#define TAG(x) radeon##x##_z24_s8
-#include "stenciltmp.h"
-
-/* 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 rmesa = RADEON_CONTEXT(ctx);
-#ifdef COMPILE_R300
- r300ContextPtr r300 = (r300ContextPtr) rmesa;
- R300_FIREVERTICES(r300);
-#else
- RADEON_FIREVERTICES(rmesa);
-#endif
- LOCK_HARDWARE(rmesa);
- radeonWaitForIdleLocked(rmesa);
-
- /* Read 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.
- *
- * Note that we should probably be reading some otherwise unused
- * region of VRAM, otherwise we might get incorrect results when
- * reading pixels from the top left of the screen.
- *
- * I found this problem on an R420 with glean's texCube test.
- * Note that the R200 span code also *writes* the first pixel in the
- * framebuffer, but I've found this to be unnecessary.
- * -- Nicolai Hähnle, June 2008
- */
- {
- int p;
- driRenderbuffer *drb =
- (driRenderbuffer *) ctx->WinSysDrawBuffer->_ColorDrawBuffers[0];
- volatile int *buf =
- (volatile int *)(rmesa->dri.screen->pFB + drb->offset);
- p = *buf;
- }
-}
-
-static void radeonSpanRenderFinish(GLcontext * ctx)
-{
- radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
- _swrast_flush(ctx);
- UNLOCK_HARDWARE(rmesa);
-}
-
-void radeonInitSpanFuncs(GLcontext * ctx)
-{
- struct swrast_device_driver *swdd =
- _swrast_GetDeviceDriverReference(ctx);
- 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) {
- radeonInitPointers_RGB565(&drb->Base);
- } else {
- radeonInitPointers_ARGB8888(&drb->Base);
- }
- } else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
- radeonInitDepthPointers_z16(&drb->Base);
- } else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
- radeonInitDepthPointers_z24_s8(&drb->Base);
- } else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
- radeonInitStencilPointers_z24_s8(&drb->Base);
- }
-}
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