void
intel_batchbuffer_finish(struct intel_batchbuffer *batch)
{
struct _DriFenceObject *fence = intel_batchbuffer_flush(batch);
driFenceReference(fence);
driFenceFinish(fence, 3, GL_FALSE);
driFenceUnReference(fence);
}
void
intel_batchbuffer_free(struct intel_batchbuffer *batch)
{
if (batch->last_fence) {
driFenceFinish(batch->last_fence,
DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW, GL_FALSE);
driFenceUnReference(batch->last_fence);
batch->last_fence = NULL;
}
if (batch->map) {
driBOUnmap(batch->buffer);
batch->map = NULL;
}
driBOUnReference(batch->buffer);
batch->buffer = NULL;
free(batch);
}
/**
* Display a colorbuffer surface in an X window.
* Used for SwapBuffers and flushing front buffer rendering.
*
* \param dPriv the window/drawable to display into
* \param surf the surface to display
* \param rect optional subrect of surface to display (may be NULL).
*/
void
intelDisplaySurface(__DRIdrawablePrivate *dPriv,
struct pipe_surface *surf,
const drm_clip_rect_t *rect)
{
struct intel_screen *intelScreen = intel_screen(dPriv->driScreenPriv);
struct intel_context *intel = intelScreen->dummyContext;
DBG(SWAP, "%s\n", __FUNCTION__);
if (!intel) {
/* XXX this is where some kind of extra/meta context could be useful */
return;
}
if (intel->last_swap_fence) {
driFenceFinish(intel->last_swap_fence, DRM_FENCE_TYPE_EXE, 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 this drawable isn't currently bound the LOCK_HARDWARE done on the
* current context (which is what intelScreenContext should return) might
* not get a contended lock and thus cliprects not updated (tests/manywin)
*/
if (intel_context(dPriv->driContextPriv) != intel)
DRI_VALIDATE_DRAWABLE_INFO(intel->driScreen, dPriv);
if (dPriv && dPriv->numClipRects) {
const int srcWidth = surf->width;
const int srcHeight = surf->height;
const int nbox = dPriv->numClipRects;
const drm_clip_rect_t *pbox = dPriv->pClipRects;
const int pitch = intelScreen->front.pitch / intelScreen->front.cpp;
const int cpp = intelScreen->front.cpp;
const int srcpitch = surf->stride / cpp;
int BR13, CMD;
int i;
ASSERT(surf->buffer);
ASSERT(surf->cpp == cpp);
DBG(SWAP, "screen pitch %d src surface pitch %d\n",
pitch, surf->stride);
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;
drm_clip_rect_t sbox;
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > intelScreen->front.width ||
pbox->y2 > intelScreen->front.height) {
/* invalid cliprect, skip it */
continue;
}
box = *pbox;
if (rect) {
/* intersect cliprect with user-provided src rect */
drm_clip_rect_t rrect;
rrect.x1 = dPriv->x + rect->x1;
rrect.y1 = (dPriv->h - rect->y1 - rect->y2) + dPriv->y;
rrect.x2 = rect->x2 + rrect.x1;
rrect.y2 = rect->y2 + rrect.y1;
if (rrect.x1 > box.x1)
box.x1 = rrect.x1;
if (rrect.y1 > box.y1)
box.y1 = rrect.y1;
if (rrect.x2 < box.x2)
box.x2 = rrect.x2;
if (rrect.y2 < box.y2)
box.y2 = rrect.y2;
if (box.x1 > box.x2 || box.y1 > box.y2)
continue;
}
/* restrict blit to size of actually rendered area */
if (box.x2 - box.x1 > srcWidth)
box.x2 = srcWidth + box.x1;
if (box.y2 - box.y1 > srcHeight)
box.y2 = srcHeight + box.y1;
DBG(SWAP, "box x1 x2 y1 y2 %d %d %d %d\n",
box.x1, box.x2, box.y1, box.y2);
sbox.x1 = box.x1 - dPriv->x;
sbox.y1 = box.y1 - dPriv->y;
assert(box.x1 < box.x2);
assert(box.y1 < box.y2);
/* XXX this could be done with pipe->surface_copy() */
/* XXX should have its own batch buffer */
if (!BEGIN_BATCH(8, 2)) {
/*
* Since we share this batch buffer with a context
* we can't flush it since that risks a GPU lockup
*/
assert(0);
continue;
}
OUT_BATCH(CMD);
OUT_BATCH(BR13);
OUT_BATCH((box.y1 << 16) | box.x1);
OUT_BATCH((box.y2 << 16) | box.x2);
OUT_RELOC(intelScreen->front.buffer,
DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
OUT_BATCH((sbox.y1 << 16) | sbox.x1);
OUT_BATCH((srcpitch * cpp) & 0xffff);
OUT_RELOC(dri_bo(surf->buffer),
DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
}
if (intel->first_swap_fence)
driFenceUnReference(&intel->first_swap_fence);
intel->first_swap_fence = intel_be_batchbuffer_flush(intel->base.batch);
}
UNLOCK_HARDWARE(intel);
if (intel->lastStamp != dPriv->lastStamp) {
intelUpdateWindowSize(dPriv);
intel->lastStamp = dPriv->lastStamp;
}
}
/* Pros:
* - no waiting for idle before updating framebuffer.
*
* Cons:
* - if upload is by memcpy, this may actually be slower than fallback path.
* - uploads the whole image even if destination is clipped
*
* Need to benchmark.
*
* Given the questions about performance, implement for pbo's only.
* This path is definitely a win if the pbo is already in agp. If it
* turns out otherwise, we can add the code necessary to upload client
* data to agp space before performing the blit. (Though it may turn
* out to be better/simpler just to use the texture engine).
*/
static GLboolean
do_blit_drawpixels(GLcontext * ctx,
GLint x, GLint y,
GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *unpack,
const GLvoid * pixels)
{
struct intel_context *intel = intel_context(ctx);
struct intel_region *dest = intel_drawbuf_region(intel);
struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj);
GLuint src_offset;
GLuint rowLength;
struct _DriFenceObject *fence = NULL;
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s\n", __FUNCTION__);
if (!dest) {
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s - no dest\n", __FUNCTION__);
return GL_FALSE;
}
if (src) {
/* This validation should be done by core mesa:
*/
if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
format, type, pixels)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels");
return GL_TRUE;
}
}
else {
/* PBO only for now:
*/
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s - not PBO\n", __FUNCTION__);
return GL_FALSE;
}
if (!intel_check_blit_format(dest, format, type)) {
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s - bad format for blit\n", __FUNCTION__);
return GL_FALSE;
}
if (!intel_check_blit_fragment_ops(ctx)) {
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s - bad GL fragment state for blitter\n",
__FUNCTION__);
return GL_FALSE;
}
if (ctx->Pixel.ZoomX != 1.0F) {
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s - bad PixelZoomX for blit\n", __FUNCTION__);
return GL_FALSE;
}
if (unpack->RowLength > 0)
rowLength = unpack->RowLength;
else
rowLength = width;
if (ctx->Pixel.ZoomY == -1.0F) {
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__);
return GL_FALSE; /* later */
y -= height;
}
else if (ctx->Pixel.ZoomY == 1.0F) {
rowLength = -rowLength;
}
else {
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__);
return GL_FALSE;
}
src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height,
format, type, 0, 0, 0);
intelFlush(&intel->ctx);
LOCK_HARDWARE(intel);
if (intel->driDrawable->numClipRects) {
__DRIdrawablePrivate *dPriv = intel->driDrawable;
int nbox = dPriv->numClipRects;
drm_clip_rect_t *box = dPriv->pClipRects;
drm_clip_rect_t rect;
drm_clip_rect_t dest_rect;
struct _DriBufferObject *src_buffer =
intel_bufferobj_buffer(intel, src, INTEL_READ);
int i;
dest_rect.x1 = dPriv->x + x;
dest_rect.y1 = dPriv->y + dPriv->h - (y + height);
dest_rect.x2 = dest_rect.x1 + width;
dest_rect.y2 = dest_rect.y1 + height;
for (i = 0; i < nbox; i++) {
if (!intel_intersect_cliprects(&rect, &dest_rect, &box[i]))
continue;
intelEmitCopyBlit(intel,
dest->cpp,
rowLength,
src_buffer, src_offset,
dest->pitch,
dest->buffer, 0,
rect.x1 - dest_rect.x1,
rect.y2 - dest_rect.y2,
rect.x1,
rect.y1, rect.x2 - rect.x1, rect.y2 - rect.y1,
ctx->Color.ColorLogicOpEnabled ?
ctx->Color.LogicOp : GL_COPY);
}
fence = intel_batchbuffer_flush(intel->batch);
driFenceReference(fence);
}
UNLOCK_HARDWARE(intel);
if (fence) {
driFenceFinish(fence, DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW, GL_FALSE);
driFenceUnReference(fence);
}
if (INTEL_DEBUG & DEBUG_PIXEL)
_mesa_printf("%s - DONE\n", __FUNCTION__);
return GL_TRUE;
}
