diff options
| -rw-r--r-- | src/r600_exa.c | 163 |
1 files changed, 161 insertions, 2 deletions
diff --git a/src/r600_exa.c b/src/r600_exa.c index 86da68c4..40c7c04f 100644 --- a/src/r600_exa.c +++ b/src/r600_exa.c @@ -2112,6 +2112,165 @@ R600DownloadFromScreen(PixmapPtr pSrc, int x, int y, int w, int h, } +#if defined(XF86DRM_MODE) +static inline void radeon_add_pixmap(struct radeon_cs *cs, PixmapPtr pPix, int read_domains, int write_domain) +{ + struct radeon_exa_pixmap_priv *driver_priv = exaGetPixmapDriverPrivate(pPix); + + radeon_cs_space_add_persistent_bo(cs, driver_priv->bo, read_domains, write_domain); +} + +static Bool +R600UploadToScreenCS(PixmapPtr pDst, int x, int y, int w, int h, + char *src, int src_pitch) +{ + ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum]; + RADEONInfoPtr info = RADEONPTR(pScrn); + struct radeon_exa_pixmap_priv *driver_priv; + struct radeon_bo *scratch; + unsigned size; + uint32_t dst_domain; + int bpp = pDst->drawable.bitsPerPixel; + uint32_t scratch_pitch = (w * bpp / 8 + 255) & ~255; + uint32_t src_pitch_hw = scratch_pitch / (bpp / 8); + uint32_t dst_pitch_hw = exaGetPixmapPitch(pDst) / (bpp / 8); + Bool r; + int i; + + if (bpp < 8) + return FALSE; + + driver_priv = exaGetPixmapDriverPrivate(pDst); + + /* If we know the BO won't be busy, don't bother */ + if (driver_priv->bo->cref == 1 && + !radeon_bo_is_busy(driver_priv->bo, &dst_domain)) + return FALSE; + + size = scratch_pitch * h; + scratch = radeon_bo_open(info->bufmgr, 0, size, 0, RADEON_GEM_DOMAIN_GTT, 0); + if (scratch == NULL) { + return FALSE; + } + radeon_cs_space_reset_bos(info->cs); + radeon_add_pixmap(info->cs, pDst, 0, RADEON_GEM_DOMAIN_VRAM); + radeon_cs_space_add_persistent_bo(info->cs, scratch, RADEON_GEM_DOMAIN_GTT, 0); + r = radeon_cs_space_check(info->cs); + if (r) { + r = FALSE; + goto out; + } + + r = radeon_bo_map(scratch, 0); + if (r) { + r = FALSE; + goto out; + } + r = TRUE; + size = w * bpp / 8; + for (i = 0; i < h; i++) { + memcpy(scratch->ptr + i * scratch_pitch, src, size); + src += src_pitch; + } + radeon_bo_unmap(scratch); + + /* blit from gart to vram */ + R600DoPrepareCopy(pScrn, + src_pitch_hw, w, h, + 0, scratch, bpp, + dst_pitch_hw, pDst->drawable.width, pDst->drawable.height, + 0, radeon_get_pixmap_bo(pDst), bpp, + 3, 0xffffffff); + R600AppendCopyVertex(pScrn, 0, 0, x, y, w, h); + R600DoCopy(pScrn); + +out: + radeon_bo_unref(scratch); + return r; +} + +static Bool +R600DownloadFromScreenCS(PixmapPtr pSrc, int x, int y, int w, + int h, char *dst, int dst_pitch) +{ + ScrnInfoPtr pScrn = xf86Screens[pSrc->drawable.pScreen->myNum]; + RADEONInfoPtr info = RADEONPTR(pScrn); + struct radeon_exa_pixmap_priv *driver_priv; + struct radeon_bo *scratch; + unsigned size; + uint32_t src_domain = 0; + int bpp = pSrc->drawable.bitsPerPixel; + uint32_t scratch_pitch = (w * bpp / 8 + 255) & ~255; + uint32_t dst_pitch_hw = scratch_pitch / (bpp / 8); + uint32_t src_pitch_hw = exaGetPixmapPitch(pSrc) / (bpp / 8); + Bool r; + + if (bpp < 8) + return FALSE; + + driver_priv = exaGetPixmapDriverPrivate(pSrc); + + /* If we know the BO won't end up in VRAM anyway, don't bother */ + if (driver_priv->bo->cref > 1) { + src_domain = driver_priv->bo->space_accounted & 0xffff; + if (!src_domain) + src_domain = driver_priv->bo->space_accounted >> 16; + + if ((src_domain & (RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM)) == + (RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM)) + src_domain = 0; + } + + if (!src_domain) + radeon_bo_is_busy(driver_priv->bo, &src_domain); + + if (src_domain != RADEON_GEM_DOMAIN_VRAM) + return FALSE; + + size = scratch_pitch * h; + scratch = radeon_bo_open(info->bufmgr, 0, size, 0, RADEON_GEM_DOMAIN_GTT, 0); + if (scratch == NULL) { + return FALSE; + } + radeon_cs_space_reset_bos(info->cs); + radeon_add_pixmap(info->cs, pSrc, RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM, 0); + radeon_cs_space_add_persistent_bo(info->cs, scratch, 0, RADEON_GEM_DOMAIN_GTT); + r = radeon_cs_space_check(info->cs); + if (r) { + r = FALSE; + goto out; + } + + /* blit from vram to gart */ + R600DoPrepareCopy(pScrn, + src_pitch_hw, pSrc->drawable.width, pSrc->drawable.height, + 0, radeon_get_pixmap_bo(pSrc), bpp, + dst_pitch_hw, w, h, + 0, scratch, bpp, + 3, 0xffffffff); + R600AppendCopyVertex(pScrn, x, y, 0, 0, w, h); + R600DoCopy(pScrn); + + r = radeon_bo_map(scratch, 0); + if (r) { + r = FALSE; + goto out; + } + r = TRUE; + w *= bpp / 8; + size = 0; + while (h--) { + memcpy(dst, scratch->ptr + size, w); + size += scratch_pitch; + dst += dst_pitch; + } + radeon_bo_unmap(scratch); +out: + radeon_bo_unref(scratch); + return r; +} +#endif + static int R600MarkSync(ScreenPtr pScreen) { @@ -2305,8 +2464,8 @@ R600DrawInit(ScreenPtr pScreen) info->accel_state->exa->PixmapIsOffscreen = RADEONEXAPixmapIsOffscreen; info->accel_state->exa->PrepareAccess = RADEONPrepareAccess_CS; info->accel_state->exa->FinishAccess = RADEONFinishAccess_CS; - info->accel_state->exa->UploadToScreen = NULL; - info->accel_state->exa->DownloadFromScreen = NULL; + info->accel_state->exa->UploadToScreen = R600UploadToScreenCS; + info->accel_state->exa->DownloadFromScreen = R600DownloadFromScreenCS; } else #endif #endif |