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[intel-GEM] Add tiling support to swrast.

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Accessing tiled surfaces without using the fence registers requires that
software deal with the address swizzling itself.
This commit is contained in:
Keith Packard
2008-05-06 10:51:08 -07:00
parent df4b49c2ce
commit 537bbe6dec
7 changed files with 350 additions and 25 deletions
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327
src/mesa/drivers/dri/intel/intel_span.c
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@@ -39,6 +39,111 @@
#include "swrast/swrast.h"
/*
* Deal with tiled surfaces
*/
#if 0
/* These are pre-965 tile swizzling functions -- power of two widths */
static uintptr_t x_tile_swizzle_pow2 (uintptr_t addr, int n)
{
uintptr_t a = addr;
uintptr_t base_mask = (((~0) << (n + 4)) | 0xff);
uintptr_t x_mask = ((~0) << 12) & ~base_mask;
a = ((a & base_mask) |
((a >> (n-8)) & 0x7) |
((a << 3) & x_mask));
_mesa_printf ("x_swizzle %08x (base %x yrow %x tile#x %x xsword %x byte %x) %08x\n",
addr,
addr >> (n + 4),
(addr >> (n + 1)) & 0x7,
(addr >> 9) & ((1 << (n-8)) - 1),
(addr >> 5) & 0xf,
(addr & 0x1f),
a);
return a;
}
static uintptr_t y_tile_swizzle_pow2 (uintptr_t addr, int n)
{
uintptr_t a = (uintptr_t) addr;
uintptr_t base_mask = (((~0) << (n + 6)) | 0xf);
uintptr_t x_mask = ((~0) << 9) & ~base_mask;
a = ((a & base_mask) |
((a >> (n-3)) & 0x1f) |
((a << 5) & x_mask));
_mesa_printf ("y_swizzle %08x (base %x yrow %x tile#x %x xoword %x byte %x) %08x\n",
addr,
addr >> (n + 6),
(addr >> (n + 1)) & 0x01f,
(addr >> 7) & ((1 << (n-6)) - 1),
(addr >> 4) & 0x7,
(addr & 0xf),
a);
return a;
}
#endif
static GLubyte *x_tile_swizzle(struct intel_renderbuffer *irb, struct intel_context *intel,
int x, int y)
{
GLubyte *buf = (GLubyte *) irb->pfMap;
int tile_stride;
int xbyte;
int x_tile_off, y_tile_off;
int x_tile_number, y_tile_number;
int tile_off, tile_base;
tile_stride = (irb->pfPitch * irb->region->cpp) << 3;
x += intel->drawX;
y += intel->drawY;
xbyte = x * irb->region->cpp;
x_tile_off = xbyte & 0x1ff;
y_tile_off = y & 7;
x_tile_number = xbyte >> 9;
y_tile_number = y >> 3;
tile_off = (y_tile_off << 9) + x_tile_off;
tile_base = (x_tile_number << 12) + y_tile_number * tile_stride;
return buf + tile_base + tile_off;
}
static GLubyte *y_tile_swizzle(struct intel_renderbuffer *irb, struct intel_context *intel,
int x, int y)
{
GLubyte *buf = (GLubyte *) irb->pfMap;
int tile_stride;
int xbyte;
int x_tile_off, y_tile_off;
int x_tile_number, y_tile_number;
int tile_off, tile_base;
tile_stride = (irb->pfPitch * irb->region->cpp) << 3;
x += intel->drawX;
y += intel->drawY;
xbyte = x * irb->region->cpp;
x_tile_off = xbyte & 0x7f;
y_tile_off = y & 0x1f;
x_tile_number = xbyte >> 7;
y_tile_number = y >> 5;
tile_off = ((x_tile_off & ~0xf) << 5) + (y_tile_off << 4) + (x_tile_off & 0xf);
tile_base = (x_tile_number << 12) + y_tile_number * tile_stride;
return buf + tile_base + tile_off;
}
/*
break intelWriteRGBASpan_ARGB8888
*/
@@ -55,7 +160,7 @@
+ (intel->drawY * irb->pfPitch + intel->drawX) * irb->region->cpp;\
GLuint p; \
assert(irb->pfMap);\
(void) p;
(void) p; (void) buf;
/* XXX FBO: this is identical to the macro in spantmp2.h except we get
* the cliprect info from the context, not the driDrawable.
@@ -69,12 +174,14 @@
int miny = intel->pClipRects[_nc].y1 - intel->drawY; \
int maxx = intel->pClipRects[_nc].x2 - intel->drawX; \
int maxy = intel->pClipRects[_nc].y2 - intel->drawY;
#if 0
}}
#endif
#define Y_FLIP(_y) ((_y) * yScale + yBias)
/* XXX with GEM, these need to tell the kernel */
#define HW_LOCK()
#define HW_UNLOCK()
@@ -99,6 +206,43 @@
#define GET_PTR(X,Y) (buf + ((Y) * irb->pfPitch + (X)) * 4)
#include "spantmp2.h"
/* 16 bit RGB565 color tile spanline and pixel functions
*/
#define SPANTMP_PIXEL_FMT GL_RGB
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
#define TAG(x) intel_XTile_##x##_RGB565
#define TAG2(x,y) intel_XTile_##x##_RGB565##y
#define GET_PTR(X,Y) x_tile_swizzle(irb, intel, X, Y)
#include "spantmp2.h"
#define SPANTMP_PIXEL_FMT GL_RGB
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
#define TAG(x) intel_YTile_##x##_RGB565
#define TAG2(x,y) intel_YTile_##x##_RGB565##y
#define GET_PTR(X,Y) y_tile_swizzle(irb, intel, X, Y)
#include "spantmp2.h"
/* 32 bit ARGB888 color tile 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) intel_XTile_##x##_ARGB8888
#define TAG2(x,y) intel_XTile_##x##_ARGB8888##y
#define GET_PTR(X,Y) x_tile_swizzle(irb, intel, X, Y)
#include "spantmp2.h"
#define SPANTMP_PIXEL_FMT GL_BGRA
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
#define TAG(x) intel_YTile_##x##_ARGB8888
#define TAG2(x,y) intel_YTile_##x##_ARGB8888##y
#define GET_PTR(X,Y) y_tile_swizzle(irb, intel, X, Y)
#include "spantmp2.h"
#define LOCAL_DEPTH_VARS \
struct intel_context *intel = intel_context(ctx); \
@@ -107,7 +251,7 @@
const GLint yScale = irb->RenderToTexture ? 1 : -1; \
const GLint yBias = irb->RenderToTexture ? 0 : irb->Base.Height - 1; \
char *buf = (char *) irb->pfMap/*XXX use region->map*/ + \
(intel->drawY * pitch + intel->drawX) * irb->region->cpp;
(intel->drawY * pitch + intel->drawX) * irb->region->cpp; (void) buf;
#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
@@ -126,6 +270,33 @@
#include "depthtmp.h"
/**
** 16-bit x tile depthbuffer functions.
**/
#define WRITE_DEPTH( _x, _y, d ) \
(*((GLushort *)x_tile_swizzle (irb, intel, _x, _y)) = d)
#define READ_DEPTH( d, _x, _y ) \
d = *((GLushort *)x_tile_swizzle (irb, intel, _x, _y))
#define TAG(x) intel_XTile_##x##_z16
#include "depthtmp.h"
/**
** 16-bit y tile depthbuffer functions.
**/
#define WRITE_DEPTH( _x, _y, d ) \
(*((GLushort *)y_tile_swizzle (irb, intel, _x, _y)) = d)
#define READ_DEPTH( d, _x, _y ) \
(d = *((GLushort *)y_tile_swizzle (irb, intel, _x, _y)))
#define TAG(x) intel_YTile_##x##_z16
#include "depthtmp.h"
/**
** 24/8-bit interleaved depth/stencil functions
** Note: we're actually reading back combined depth+stencil values.
@@ -148,6 +319,49 @@
#include "depthtmp.h"
/**
** 24/8-bit x-tile interleaved depth/stencil functions
** Note: we're actually reading back combined depth+stencil values.
** The wrappers in main/depthstencil.c are used to extract the depth
** and stencil values.
**/
/* Change ZZZS -> SZZZ */
#define WRITE_DEPTH( _x, _y, d ) { \
GLuint tmp = ((d) >> 8) | ((d) << 24); \
*((GLuint *)x_tile_swizzle (irb, intel, _x, _y)) = tmp; \
}
/* Change SZZZ -> ZZZS */
#define READ_DEPTH( d, _x, _y ) { \
GLuint tmp = *((GLuint *)x_tile_swizzle (irb, intel, _x, _y)); \
d = (tmp << 8) | (tmp >> 24); \
}
#define TAG(x) intel_XTile_##x##_z24_s8
#include "depthtmp.h"
/**
** 24/8-bit y-tile interleaved depth/stencil functions
** Note: we're actually reading back combined depth+stencil values.
** The wrappers in main/depthstencil.c are used to extract the depth
** and stencil values.
**/
/* Change ZZZS -> SZZZ */
#define WRITE_DEPTH( _x, _y, d ) { \
GLuint tmp = ((d) >> 8) | ((d) << 24); \
*((GLuint *)y_tile_swizzle (irb, intel, _x, _y)) = tmp; \
}
/* Change SZZZ -> ZZZS */
#define READ_DEPTH( d, _x, _y ) { \
GLuint tmp = *((GLuint *)y_tile_swizzle (irb, intel, _x, _y)); \
d = (tmp << 8) | (tmp >> 24); \
}
#define TAG(x) intel_YTile_##x##_z24_s8
#include "depthtmp.h"
/**
** 8-bit stencil function (XXX FBO: This is obsolete)
**/
@@ -164,6 +378,40 @@
#define TAG(x) intel##x##_z24_s8
#include "stenciltmp.h"
/**
** 8-bit x-tile stencil function (XXX FBO: This is obsolete)
**/
#define WRITE_STENCIL( _x, _y, d ) { \
GLuint *a = (GLuint *) x_tile_swizzle (irb, intel, _x, _y); \
GLuint tmp = *a; \
tmp &= 0xffffff; \
tmp |= ((d) << 24); \
*a = tmp; \
}
#define READ_STENCIL( d, _x, _y ) \
(d = *((GLuint*) x_tile_swizzle (irb, intel, _x, _y)) >> 24)
#define TAG(x) intel_XTile_##x##_z24_s8
#include "stenciltmp.h"
/**
** 8-bit y-tile stencil function (XXX FBO: This is obsolete)
**/
#define WRITE_STENCIL( _x, _y, d ) { \
GLuint *a = (GLuint *) y_tile_swizzle (irb, intel, _x, _y); \
GLuint tmp = *a; \
tmp &= 0xffffff; \
tmp |= ((d) << 24); \
*a = tmp; \
}
#define READ_STENCIL( d, _x, _y ) \
(d = *((GLuint*) y_tile_swizzle (irb, intel, _x, _y)) >> 24)
#define TAG(x) intel_YTile_##x##_z24_s8
#include "stenciltmp.h"
/**
@@ -379,25 +627,80 @@ intelInitSpanFuncs(GLcontext * ctx)
* These are used for the software fallbacks.
*/
void
intel_set_span_functions(struct gl_renderbuffer *rb)
intel_set_span_functions(struct gl_renderbuffer *rb, int tiling)
{
if (rb->_ActualFormat == GL_RGB5) {
/* 565 RGB */
intelInitPointers_RGB565(rb);
switch (tiling) {
case INTEL_TILE_NONE:
default:
intelInitPointers_RGB565(rb);
break;
case INTEL_TILE_X:
intel_XTile_InitPointers_RGB565(rb);
break;
case INTEL_TILE_Y:
intel_YTile_InitPointers_RGB565(rb);
break;
}
}
else if (rb->_ActualFormat == GL_RGBA8) {
/* 8888 RGBA */
intelInitPointers_ARGB8888(rb);
switch (tiling) {
case INTEL_TILE_NONE:
default:
intelInitPointers_ARGB8888(rb);
break;
case INTEL_TILE_X:
intel_XTile_InitPointers_ARGB8888(rb);
break;
case INTEL_TILE_Y:
intel_YTile_InitPointers_ARGB8888(rb);
break;
}
}
else if (rb->_ActualFormat == GL_DEPTH_COMPONENT16) {
intelInitDepthPointers_z16(rb);
switch (tiling) {
case INTEL_TILE_NONE:
default:
intelInitDepthPointers_z16(rb);
break;
case INTEL_TILE_X:
intel_XTile_InitDepthPointers_z16(rb);
break;
case INTEL_TILE_Y:
intel_YTile_InitDepthPointers_z16(rb);
break;
}
}
else if (rb->_ActualFormat == GL_DEPTH_COMPONENT24 || /* XXX FBO remove */
rb->_ActualFormat == GL_DEPTH24_STENCIL8_EXT) {
intelInitDepthPointers_z24_s8(rb);
switch (tiling) {
case INTEL_TILE_NONE:
default:
intelInitDepthPointers_z24_s8(rb);
break;
case INTEL_TILE_X:
intel_XTile_InitDepthPointers_z24_s8(rb);
break;
case INTEL_TILE_Y:
intel_YTile_InitDepthPointers_z24_s8(rb);
break;
}
}
else if (rb->_ActualFormat == GL_STENCIL_INDEX8_EXT) { /* XXX FBO remove */
intelInitStencilPointers_z24_s8(rb);
else if (rb->_ActualFormat == GL_STENCIL_INDEX8_EXT) {
switch (tiling) {
case INTEL_TILE_NONE:
default:
intelInitStencilPointers_z24_s8(rb);
break;
case INTEL_TILE_X:
intel_XTile_InitStencilPointers_z24_s8(rb);
break;
case INTEL_TILE_Y:
intel_YTile_InitStencilPointers_z24_s8(rb);
break;
}
}
else {
_mesa_problem(NULL,