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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN 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 <stdio.h>
#include <errno.h>
#include "mtypes.h"
#include "context.h"
#include "enums.h"
#include "intel_batchbuffer.h"
#include "intel_blit.h"
#include "intel_buffers.h"
#include "intel_context.h"
#include "intel_fbo.h"
#include "intel_reg.h"
#include "intel_regions.h"
#include "vblank.h"
#define FILE_DEBUG_FLAG DEBUG_BLIT
/**
* Copy the back color buffer to the front color buffer.
* Used for SwapBuffers().
*/
void
intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
const drm_clip_rect_t * rect)
{
struct intel_context *intel;
const intelScreenPrivate *intelScreen;
DBG("%s\n", __FUNCTION__);
assert(dPriv);
intel = intelScreenContext(dPriv->driScreenPriv->private);
if (!intel)
return;
intelScreen = intel->intelScreen;
if (intel->last_swap_fence) {
driFenceFinish(intel->last_swap_fence, DRM_FENCE_TYPE_EXE, GL_TRUE);
driFenceUnReference(intel->last_swap_fence);
intel->last_swap_fence = NULL;
}
intel->last_swap_fence = intel->first_swap_fence;
intel->first_swap_fence = NULL;
/* The LOCK_HARDWARE is required for the cliprects. Buffer offsets
* should work regardless.
*/
LOCK_HARDWARE(intel);
if (dPriv && dPriv->numClipRects) {
struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
const struct intel_region *frontRegion
= intel_get_rb_region(&intel_fb->Base, BUFFER_FRONT_LEFT);
const struct intel_region *backRegion
= intel_get_rb_region(&intel_fb->Base, BUFFER_BACK_LEFT);
const int nbox = dPriv->numClipRects;
const drm_clip_rect_t *pbox = dPriv->pClipRects;
const int pitch = frontRegion->pitch;
const int srcpitch = backRegion->pitch;
const int cpp = frontRegion->cpp;
int BR13, CMD;
int i;
ASSERT(intel_fb);
ASSERT(intel_fb->Base.Name == 0); /* Not a user-created FBO */
ASSERT(frontRegion);
ASSERT(backRegion);
// ASSERT(frontRegion->pitch == backRegion->pitch);
ASSERT(frontRegion->cpp == backRegion->cpp);
DBG("copy buffer, front pitch %d back pitch %d\n",
frontRegion->pitch, backRegion->pitch);
if (cpp == 2) {
BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24);
CMD = XY_SRC_COPY_BLT_CMD;
}
else {
BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24) | (1 << 25);
CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
XY_SRC_COPY_BLT_WRITE_RGB);
}
for (i = 0; i < nbox; i++, pbox++) {
drm_clip_rect_t box;
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > intelScreen->width || pbox->y2 > intelScreen->height)
continue;
box = *pbox;
if (rect) {
if (rect->x1 > box.x1)
box.x1 = rect->x1;
if (rect->y1 > box.y1)
box.y1 = rect->y1;
if (rect->x2 < box.x2)
box.x2 = rect->x2;
if (rect->y2 < box.y2)
box.y2 = rect->y2;
if (box.x1 > box.x2 || box.y1 > box.y2)
continue;
}
BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
OUT_BATCH(CMD);
OUT_BATCH(BR13);
OUT_BATCH((pbox->y1 << 16) | pbox->x1);
OUT_BATCH((pbox->y2 << 16) | pbox->x2);
OUT_RELOC(frontRegion->buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
OUT_BATCH((pbox->y1 << 16) | pbox->x1);
OUT_BATCH((srcpitch * cpp) & 0xffff);
OUT_RELOC(backRegion->buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
ADVANCE_BATCH();
}
if (intel->first_swap_fence)
driFenceUnReference(intel->first_swap_fence);
intel->first_swap_fence = intel_batchbuffer_flush(intel->batch);
driFenceReference(intel->first_swap_fence);
}
UNLOCK_HARDWARE(intel);
}
void
intelEmitFillBlit(struct intel_context *intel,
GLuint cpp,
GLshort dst_pitch,
struct _DriBufferObject *dst_buffer,
GLuint dst_offset,
GLshort x, GLshort y, GLshort w, GLshort h, GLuint color)
{
GLuint BR13, CMD;
BATCH_LOCALS;
dst_pitch *= cpp;
switch (cpp) {
case 1:
case 2:
case 3:
BR13 = dst_pitch | (0xF0 << 16) | (1 << 24);
CMD = XY_COLOR_BLT_CMD;
break;
case 4:
BR13 = dst_pitch | (0xF0 << 16) | (1 << 24) | (1 << 25);
CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA |
XY_COLOR_BLT_WRITE_RGB);
break;
default:
return;
}
DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
__FUNCTION__, dst_buffer, dst_pitch, dst_offset, x, y, w, h);
BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
OUT_BATCH(CMD);
OUT_BATCH(BR13);
OUT_BATCH((y << 16) | x);
OUT_BATCH(((y + h) << 16) | (x + w));
OUT_RELOC(dst_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, dst_offset);
OUT_BATCH(color);
ADVANCE_BATCH();
}
static GLuint translate_raster_op(GLenum logicop)
{
switch(logicop) {
case GL_CLEAR: return 0x00;
case GL_AND: return 0x88;
case GL_AND_REVERSE: return 0x44;
case GL_COPY: return 0xCC;
case GL_AND_INVERTED: return 0x22;
case GL_NOOP: return 0xAA;
case GL_XOR: return 0x66;
case GL_OR: return 0xEE;
case GL_NOR: return 0x11;
case GL_EQUIV: return 0x99;
case GL_INVERT: return 0x55;
case GL_OR_REVERSE: return 0xDD;
case GL_COPY_INVERTED: return 0x33;
case GL_OR_INVERTED: return 0xBB;
case GL_NAND: return 0x77;
case GL_SET: return 0xFF;
default: return 0;
}
}
/* Copy BitBlt
*/
void
intelEmitCopyBlit(struct intel_context *intel,
GLuint cpp,
GLshort src_pitch,
struct _DriBufferObject *src_buffer,
GLuint src_offset,
GLshort dst_pitch,
struct _DriBufferObject *dst_buffer,
GLuint dst_offset,
GLshort src_x, GLshort src_y,
GLshort dst_x, GLshort dst_y,
GLshort w, GLshort h,
GLenum logic_op)
{
GLuint CMD, BR13;
int dst_y2 = dst_y + h;
int dst_x2 = dst_x + w;
BATCH_LOCALS;
DBG("%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
__FUNCTION__,
src_buffer, src_pitch, src_offset, src_x, src_y,
dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
src_pitch *= cpp;
dst_pitch *= cpp;
switch (cpp) {
case 1:
case 2:
case 3:
BR13 = (((GLint) dst_pitch) & 0xffff) |
(translate_raster_op(logic_op) << 16) | (1 << 24);
CMD = XY_SRC_COPY_BLT_CMD;
break;
case 4:
BR13 =
(((GLint) dst_pitch) & 0xffff) |
(translate_raster_op(logic_op) << 16) | (1 << 24) | (1 << 25);
CMD =
(XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
XY_SRC_COPY_BLT_WRITE_RGB);
break;
default:
return;
}
if (dst_y2 < dst_y || dst_x2 < dst_x) {
return;
}
/* Initial y values don't seem to work with negative pitches. If
* we adjust the offsets manually (below), it seems to work fine.
*
* On the other hand, if we always adjust, the hardware doesn't
* know which blit directions to use, so overlapping copypixels get
* the wrong result.
*/
if (dst_pitch > 0 && src_pitch > 0) {
BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
OUT_BATCH(CMD);
OUT_BATCH(BR13);
OUT_BATCH((dst_y << 16) | dst_x);
OUT_BATCH((dst_y2 << 16) | dst_x2);
OUT_RELOC(dst_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, dst_offset);
OUT_BATCH((src_y << 16) | src_x);
OUT_BATCH(((GLint) src_pitch & 0xffff));
OUT_RELOC(src_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, src_offset);
ADVANCE_BATCH();
}
else {
BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
OUT_BATCH(CMD);
OUT_BATCH(BR13);
OUT_BATCH((0 << 16) | dst_x);
OUT_BATCH((h << 16) | dst_x2);
OUT_RELOC(dst_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE,
dst_offset + dst_y * dst_pitch);
OUT_BATCH((0 << 16) | src_x);
OUT_BATCH(((GLint) src_pitch & 0xffff));
OUT_RELOC(src_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
DRM_BO_MASK_MEM | DRM_BO_FLAG_READ,
src_offset + src_y * src_pitch);
ADVANCE_BATCH();
}
}
/**
* Use blitting to clear the renderbuffers named by 'flags'.
* Note: we can't use the ctx->DrawBuffer->_ColorDrawBufferMask field
* since that might include software renderbuffers or renderbuffers
* which we're clearing with triangles.
* \param mask bitmask of BUFFER_BIT_* values indicating buffers to clear
*/
void
intelClearWithBlit(GLcontext * ctx, GLbitfield mask)
{
struct intel_context *intel = intel_context(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
GLuint clear_depth;
GLbitfield skipBuffers = 0;
BATCH_LOCALS;
DBG("%s %x\n", __FUNCTION__, mask);
/*
* Compute values for clearing the buffers.
*/
clear_depth = 0;
if (mask & BUFFER_BIT_DEPTH) {
clear_depth = (GLuint) (fb->_DepthMax * ctx->Depth.Clear);
}
if (mask & BUFFER_BIT_STENCIL) {
clear_depth |= (ctx->Stencil.Clear & 0xff) << 24;
}
/* If clearing both depth and stencil, skip BUFFER_BIT_STENCIL in
* the loop below.
*/
if ((mask & BUFFER_BIT_DEPTH) && (mask & BUFFER_BIT_STENCIL)) {
skipBuffers = BUFFER_BIT_STENCIL;
}
/* XXX Move this flush/lock into the following conditional? */
intelFlush(&intel->ctx);
LOCK_HARDWARE(intel);
if (intel->numClipRects) {
GLint cx, cy, cw, ch;
drm_clip_rect_t clear;
int i;
/* Get clear bounds after locking */
cx = fb->_Xmin;
cy = fb->_Ymin;
cw = fb->_Xmax - cx;
ch = fb->_Ymax - cy;
if (fb->Name == 0) {
/* clearing a window */
/* flip top to bottom */
clear.x1 = cx + intel->drawX;
clear.y1 = intel->driDrawable->y + intel->driDrawable->h - cy - ch;
clear.x2 = clear.x1 + cw;
clear.y2 = clear.y1 + ch;
}
else {
/* clearing FBO */
assert(intel->numClipRects == 1);
assert(intel->pClipRects == &intel->fboRect);
clear.x1 = cx;
clear.y1 = cy;
clear.x2 = clear.x1 + cw;
clear.y2 = clear.y1 + ch;
/* no change to mask */
}
for (i = 0; i < intel->numClipRects; i++) {
const drm_clip_rect_t *box = &intel->pClipRects[i];
drm_clip_rect_t b;
GLuint buf;
GLuint clearMask = mask; /* use copy, since we modify it below */
GLboolean all = (cw == fb->Width && ch == fb->Height);
if (!all) {
intel_intersect_cliprects(&b, &clear, box);
}
else {
b = *box;
}
if (0)
_mesa_printf("clear %d,%d..%d,%d, mask %x\n",
b.x1, b.y1, b.x2, b.y2, mask);
/* Loop over all renderbuffers */
for (buf = 0; buf < BUFFER_COUNT && clearMask; buf++) {
const GLbitfield bufBit = 1 << buf;
if ((clearMask & bufBit) && !(bufBit & skipBuffers)) {
/* OK, clear this renderbuffer */
struct intel_region *irb_region =
intel_get_rb_region(fb, buf);
struct _DriBufferObject *write_buffer =
intel_region_buffer(intel->intelScreen, irb_region,
all ? INTEL_WRITE_FULL :
INTEL_WRITE_PART);
GLuint clearVal;
GLint pitch, cpp;
GLuint BR13, CMD;
ASSERT(irb_region);
pitch = irb_region->pitch;
cpp = irb_region->cpp;
DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
__FUNCTION__,
irb_region->buffer, (pitch * cpp),
irb_region->draw_offset,
b.x1, b.y1, b.x2 - b.x1, b.y2 - b.y1);
/* Setup the blit command */
if (cpp == 4) {
BR13 = (0xF0 << 16) | (pitch * cpp) | (1 << 24) | (1 << 25);
if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL) {
CMD = XY_COLOR_BLT_CMD;
if (clearMask & BUFFER_BIT_DEPTH)
CMD |= XY_COLOR_BLT_WRITE_RGB;
if (clearMask & BUFFER_BIT_STENCIL)
CMD |= XY_COLOR_BLT_WRITE_ALPHA;
}
else {
/* clearing RGBA */
CMD = (XY_COLOR_BLT_CMD |
XY_COLOR_BLT_WRITE_ALPHA |
XY_COLOR_BLT_WRITE_RGB);
}
}
else {
ASSERT(cpp == 2 || cpp == 0);
BR13 = (0xF0 << 16) | (pitch * cpp) | (1 << 24);
CMD = XY_COLOR_BLT_CMD;
}
if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL) {
clearVal = clear_depth;
}
else {
clearVal = (cpp == 4)
? intel->ClearColor8888 : intel->ClearColor565;
}
/*
_mesa_debug(ctx, "hardware blit clear buf %d rb id %d\n",
buf, irb->Base.Name);
*/
intel_wait_flips(intel, INTEL_BATCH_NO_CLIPRECTS);
BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
OUT_BATCH(CMD);
OUT_BATCH(BR13);
OUT_BATCH((b.y1 << 16) | b.x1);
OUT_BATCH((b.y2 << 16) | b.x2);
OUT_RELOC(write_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE,
irb_region->draw_offset);
OUT_BATCH(clearVal);
ADVANCE_BATCH();
clearMask &= ~bufBit; /* turn off bit, for faster loop exit */
}
}
}
intel_batchbuffer_flush(intel->batch);
}
UNLOCK_HARDWARE(intel);
}
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