Creating functions for uploading a mipmapped texture.
BUG=476416
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1249543003
Review URL: https://codereview.chromium.org/1249543003
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index 85f36d9..a3848c7 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -10,9 +10,10 @@
#include "GrCaps.h"
#include "GrContext.h"
-#include "GrTextureParamsAdjuster.h"
#include "GrGpuResourcePriv.h"
#include "GrImageIDTextureAdjuster.h"
+#include "GrTextureParamsAdjuster.h"
+#include "GrTypes.h"
#include "GrXferProcessor.h"
#include "GrYUVProvider.h"
@@ -23,8 +24,10 @@
#include "SkErrorInternals.h"
#include "SkGrPixelRef.h"
#include "SkMessageBus.h"
+#include "SkMipMap.h"
#include "SkPixelRef.h"
#include "SkResourceCache.h"
+#include "SkTemplates.h"
#include "SkTextureCompressor.h"
#include "SkYUVPlanesCache.h"
#include "effects/GrBicubicEffect.h"
@@ -285,6 +288,65 @@
pixelRef->addGenIDChangeListener(new Invalidator(key));
}
+GrTexture* GrGenerateMipMapsAndUploadToTexture(GrContext* ctx, const SkBitmap& bitmap)
+{
+ GrSurfaceDesc desc = GrImageInfoToSurfaceDesc(bitmap.info());
+ if (kIndex_8_SkColorType != bitmap.colorType() && !bitmap.readyToDraw()) {
+ GrTexture* texture = load_etc1_texture(ctx, bitmap, desc);
+ if (texture) {
+ return texture;
+ }
+ }
+
+ GrTexture* texture = create_texture_from_yuv(ctx, bitmap, desc);
+ if (texture) {
+ return texture;
+ }
+
+ SkASSERT(sizeof(int) <= sizeof(uint32_t));
+ if (bitmap.width() < 0 || bitmap.height() < 0) {
+ return nullptr;
+ }
+
+ SkAutoPixmapUnlock srcUnlocker;
+ if (!bitmap.requestLock(&srcUnlocker)) {
+ return nullptr;
+ }
+ const SkPixmap& pixmap = srcUnlocker.pixmap();
+ // Try to catch where we might have returned nullptr for src crbug.com/492818
+ if (nullptr == pixmap.addr()) {
+ sk_throw();
+ }
+
+ SkAutoTDelete<SkMipMap> mipmaps(SkMipMap::Build(pixmap, nullptr));
+ if (!mipmaps) {
+ return nullptr;
+ }
+
+ const int mipLevelCount = mipmaps->countLevels() + 1;
+ if (mipLevelCount < 1) {
+ return nullptr;
+ }
+
+ const bool isMipMapped = mipLevelCount > 1;
+ desc.fIsMipMapped = isMipMapped;
+
+ SkAutoTDeleteArray<GrMipLevel> texels(new GrMipLevel[mipLevelCount]);
+
+ texels[0].fPixels = pixmap.addr();
+ texels[0].fRowBytes = pixmap.rowBytes();
+
+ for (int i = 1; i < mipLevelCount; ++i) {
+ SkMipMap::Level generatedMipLevel;
+ mipmaps->getLevel(i - 1, &generatedMipLevel);
+ texels[i].fPixels = generatedMipLevel.fPixmap.addr();
+ texels[i].fRowBytes = generatedMipLevel.fPixmap.rowBytes();
+ }
+
+ return ctx->textureProvider()->createMipMappedTexture(desc, SkBudgeted::kYes, texels.get(),
+ mipLevelCount);
+}
+
GrTexture* GrRefCachedBitmapTexture(GrContext* ctx, const SkBitmap& bitmap,
const GrTextureParams& params) {
if (bitmap.getTexture()) {