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-rw-r--r--libs/surfaceflinger/LayerBlur.cpp119
1 files changed, 75 insertions, 44 deletions
diff --git a/libs/surfaceflinger/LayerBlur.cpp b/libs/surfaceflinger/LayerBlur.cpp
index d3e456f1bf..5fd7904be6 100644
--- a/libs/surfaceflinger/LayerBlur.cpp
+++ b/libs/surfaceflinger/LayerBlur.cpp
@@ -14,8 +14,6 @@
* limitations under the License.
*/
-#define LOG_TAG "SurfaceFlinger"
-
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
@@ -26,6 +24,7 @@
#include <GLES/gl.h>
#include <GLES/glext.h>
+#include "clz.h"
#include "BlurFilter.h"
#include "LayerBlur.h"
#include "SurfaceFlinger.h"
@@ -40,17 +39,18 @@ const char* const LayerBlur::typeID = "LayerBlur";
// ---------------------------------------------------------------------------
LayerBlur::LayerBlur(SurfaceFlinger* flinger, DisplayID display,
- Client* client, int32_t i)
- : LayerBaseClient(flinger, display, client, i), mCacheDirty(true),
- mRefreshCache(true), mCacheAge(0), mTextureName(-1U)
+ const sp<Client>& client, int32_t i)
+ : LayerBaseClient(flinger, display, client, i), mCacheDirty(true),
+ mRefreshCache(true), mCacheAge(0), mTextureName(-1U),
+ mWidthScale(1.0f), mHeightScale(1.0f),
+ mBlurFormat(GGL_PIXEL_FORMAT_RGB_565)
{
}
LayerBlur::~LayerBlur()
{
if (mTextureName != -1U) {
- //glDeleteTextures(1, &mTextureName);
- deletedTextures.add(mTextureName);
+ glDeleteTextures(1, &mTextureName);
}
}
@@ -137,44 +137,73 @@ void LayerBlur::onDraw(const Region& clip) const
// create the texture name the first time
// can't do that in the ctor, because it runs in another thread.
glGenTextures(1, &mTextureName);
+ glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, &mReadFormat);
+ glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, &mReadType);
+ if (mReadFormat != GL_RGB || mReadType != GL_UNSIGNED_SHORT_5_6_5) {
+ mReadFormat = GL_RGBA;
+ mReadType = GL_UNSIGNED_BYTE;
+ mBlurFormat = GGL_PIXEL_FORMAT_RGBX_8888;
+ }
}
- Region::iterator iterator(clip);
- if (iterator) {
+ Region::const_iterator it = clip.begin();
+ Region::const_iterator const end = clip.end();
+ if (it != end) {
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, mTextureName);
-
+
if (mRefreshCache) {
mRefreshCache = false;
mAutoRefreshPending = false;
-
- // allocate enough memory for 4-bytes (2 pixels) aligned data
- const int32_t s = (w + 1) & ~1;
- uint16_t* const pixels = (uint16_t*)malloc(s*h*2);
+
+ int32_t pixelSize = 4;
+ int32_t s = w;
+ if (mReadType == GL_UNSIGNED_SHORT_5_6_5) {
+ // allocate enough memory for 4-bytes (2 pixels) aligned data
+ s = (w + 1) & ~1;
+ pixelSize = 2;
+ }
+
+ uint16_t* const pixels = (uint16_t*)malloc(s*h*pixelSize);
// This reads the frame-buffer, so a h/w GL would have to
// finish() its rendering first. we don't want to do that
// too often. Read data is 4-bytes aligned.
- glReadPixels(X, Y, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, pixels);
-
+ glReadPixels(X, Y, w, h, mReadFormat, mReadType, pixels);
+
// blur that texture.
GGLSurface bl;
bl.version = sizeof(GGLSurface);
bl.width = w;
bl.height = h;
bl.stride = s;
- bl.format = GGL_PIXEL_FORMAT_RGB_565;
+ bl.format = mBlurFormat;
bl.data = (GGLubyte*)pixels;
blurFilter(&bl, 8, 2);
-
- // NOTE: this works only because we have POT. we'd have to round the
- // texture size up, otherwise.
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0,
- GL_RGB, GL_UNSIGNED_SHORT_5_6_5, pixels);
+
+ if (mFlags & (DisplayHardware::NPOT_EXTENSION)) {
+ glTexImage2D(GL_TEXTURE_2D, 0, mReadFormat, w, h, 0,
+ mReadFormat, mReadType, pixels);
+ mWidthScale = 1.0f / w;
+ mHeightScale =-1.0f / h;
+ mYOffset = 0;
+ } else {
+ GLuint tw = 1 << (31 - clz(w));
+ GLuint th = 1 << (31 - clz(h));
+ if (tw < GLuint(w)) tw <<= 1;
+ if (th < GLuint(h)) th <<= 1;
+ glTexImage2D(GL_TEXTURE_2D, 0, mReadFormat, tw, th, 0,
+ mReadFormat, mReadType, NULL);
+ glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h,
+ mReadFormat, mReadType, pixels);
+ mWidthScale = 1.0f / tw;
+ mHeightScale =-1.0f / th;
+ mYOffset = th-h;
+ }
free((void*)pixels);
}
-
+
const State& s = drawingState();
if (UNLIKELY(s.alpha < 0xFF)) {
const GGLfixed alpha = (s.alpha << 16)/255;
@@ -186,7 +215,12 @@ void LayerBlur::onDraw(const Region& clip) const
glDisable(GL_BLEND);
}
- glDisable(GL_DITHER);
+ if (mFlags & DisplayHardware::SLOW_CONFIG) {
+ glDisable(GL_DITHER);
+ } else {
+ glEnable(GL_DITHER);
+ }
+
glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
@@ -196,37 +230,34 @@ void LayerBlur::onDraw(const Region& clip) const
// This is a very rare scenario.
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
- glScalef(1.0f/w, -1.0f/h, 1);
- glTranslatef(-x, -y, 0);
+ glScalef(mWidthScale, mHeightScale, 1);
+ glTranslatef(-x, mYOffset - y, 0);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(2, GL_FIXED, 0, mVertices);
glTexCoordPointer(2, GL_FIXED, 0, mVertices);
- Rect r;
- while (iterator.iterate(&r)) {
+ while (it != end) {
+ const Rect& r = *it++;
const GLint sy = fbHeight - (r.top + r.height());
glScissor(r.left, sy, r.width(), r.height());
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
} else {
- Region::iterator iterator(clip);
- if (iterator) {
- // NOTE: this is marginally faster with the software gl, because
- // glReadPixels() reads the fb bottom-to-top, however we'll
- // skip all the jaccobian computations.
- Rect r;
- GLint crop[4] = { 0, 0, w, h };
- glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
- y = fbHeight - (y + h);
- while (iterator.iterate(&r)) {
- const GLint sy = fbHeight - (r.top + r.height());
- glScissor(r.left, sy, r.width(), r.height());
- glDrawTexiOES(x, y, 0, w, h);
- }
+ // NOTE: this is marginally faster with the software gl, because
+ // glReadPixels() reads the fb bottom-to-top, however we'll
+ // skip all the jaccobian computations.
+ Rect r;
+ GLint crop[4] = { 0, 0, w, h };
+ glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
+ y = fbHeight - (y + h);
+ while (it != end) {
+ const Rect& r = *it++;
+ const GLint sy = fbHeight - (r.top + r.height());
+ glScissor(r.left, sy, r.width(), r.height());
+ glDrawTexiOES(x, y, 0, w, h);
}
}
}
-
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
// ---------------------------------------------------------------------------
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