Merge lmp-dev-plus-aosp-without-vendor into stage-aosp-master

Change-Id: I7063b7b52e9c09a57eb6bf3b4ffa3716d58ebf43

1 files changed, 74 insertions, 28 deletions

diff --git a/libs/hwui/ProgramCache.cpp b/libs/hwui/ProgramCache.cpp
index a5ce6f603663..06353c096adc 100644
--- a/libs/hwui/ProgramCache.cpp
+++ b/libs/hwui/ProgramCache.cpp
@@ -46,7 +46,7 @@ const char* gVS_Header_Attributes_TexCoords =
         "attribute vec2 texCoords;\n";
 const char* gVS_Header_Attributes_Colors =
         "attribute vec4 colors;\n";
-const char* gVS_Header_Attributes_AAVertexShapeParameters =
+const char* gVS_Header_Attributes_VertexAlphaParameters =
         "attribute float vtxAlpha;\n";
 const char* gVS_Header_Uniforms_TextureTransform =
         "uniform mat4 mainTextureTransform;\n";
@@ -58,11 +58,13 @@ const char* gVS_Header_Uniforms_HasGradient =
 const char* gVS_Header_Uniforms_HasBitmap =
         "uniform mat4 textureTransform;\n"
         "uniform mediump vec2 textureDimension;\n";
+const char* gVS_Header_Uniforms_HasRoundRectClip =
+        "uniform mat4 roundRectInvTransform;\n";
 const char* gVS_Header_Varyings_HasTexture =
         "varying vec2 outTexCoords;\n";
 const char* gVS_Header_Varyings_HasColors =
         "varying vec4 outColors;\n";
-const char* gVS_Header_Varyings_IsAAVertexShape =
+const char* gVS_Header_Varyings_HasVertexAlpha =
         "varying float alpha;\n";
 const char* gVS_Header_Varyings_HasBitmap =
         "varying highp vec2 outBitmapTexCoords;\n";
@@ -85,6 +87,8 @@ const char* gVS_Header_Varyings_HasGradient[6] = {
         "varying highp vec2 sweep;\n"
         "varying vec2 ditherTexCoords;\n",
 };
+const char* gVS_Header_Varyings_HasRoundRectClip =
+        "varying highp vec2 roundRectPos;\n";
 const char* gVS_Main =
         "\nvoid main(void) {\n";
 const char* gVS_Main_OutTexCoords =
@@ -115,9 +119,14 @@ const char* gVS_Main_OutGradient[6] = {
 const char* gVS_Main_OutBitmapTexCoords =
         "    outBitmapTexCoords = (textureTransform * position).xy * textureDimension;\n";
 const char* gVS_Main_Position =
-        "    gl_Position = projection * transform * position;\n";
-const char* gVS_Main_AAVertexShape =
+        "    vec4 transformedPosition = projection * transform * position;\n"
+        "    gl_Position = transformedPosition;\n";
+
+const char* gVS_Main_VertexAlpha =
         "    alpha = vtxAlpha;\n";
+
+const char* gVS_Main_HasRoundRectClip =
+        "    roundRectPos = (roundRectInvTransform * transformedPosition).xy;\n";
 const char* gVS_Footer =
         "}\n\n";
 
@@ -148,21 +157,22 @@ const char* gFS_Uniforms_GradientSampler[2] = {
 };
 const char* gFS_Uniforms_BitmapSampler =
         "uniform sampler2D bitmapSampler;\n";
-const char* gFS_Uniforms_ColorOp[4] = {
+const char* gFS_Uniforms_ColorOp[3] = {
         // None
         "",
         // Matrix
         "uniform mat4 colorMatrix;\n"
         "uniform vec4 colorMatrixVector;\n",
-        // Lighting
-        "uniform vec4 lightingMul;\n"
-        "uniform vec4 lightingAdd;\n",
         // PorterDuff
         "uniform vec4 colorBlend;\n"
 };
 const char* gFS_Uniforms_Gamma =
         "uniform float gamma;\n";
 
+const char* gFS_Uniforms_HasRoundRectClip =
+        "uniform vec4 roundRectInnerRectLTRB;\n"
+        "uniform float roundRectRadius;\n";
+
 const char* gFS_Main =
         "\nvoid main(void) {\n"
         "    lowp vec4 fragColor;\n";
@@ -227,8 +237,10 @@ const char* gFS_Main_FetchColor =
         "    fragColor = color;\n";
 const char* gFS_Main_ModulateColor =
         "    fragColor *= color.a;\n";
-const char* gFS_Main_AccountForAAVertexShape =
+const char* gFS_Main_ApplyVertexAlphaLinearInterp =
         "    fragColor *= alpha;\n";
+const char* gFS_Main_ApplyVertexAlphaShadowInterp =
+        "    fragColor *= (1.0 - cos(alpha)) / 2.0;\n";
 
 const char* gFS_Main_FetchTexture[2] = {
         // Don't modulate
@@ -311,20 +323,28 @@ const char* gFS_Main_FragColor_Blend =
         "    gl_FragColor = blendFramebuffer(fragColor, gl_LastFragColor);\n";
 const char* gFS_Main_FragColor_Blend_Swap =
         "    gl_FragColor = blendFramebuffer(gl_LastFragColor, fragColor);\n";
-const char* gFS_Main_ApplyColorOp[4] = {
+const char* gFS_Main_ApplyColorOp[3] = {
         // None
         "",
         // Matrix
+        "    fragColor.rgb /= (fragColor.a + 0.0019);\n" // un-premultiply
         "    fragColor *= colorMatrix;\n"
         "    fragColor += colorMatrixVector;\n"
-        "    fragColor.rgb *= fragColor.a;\n",
-        // Lighting
-        "    float lightingAlpha = fragColor.a;\n"
-        "    fragColor = min(fragColor * lightingMul + (lightingAdd * lightingAlpha), lightingAlpha);\n"
-        "    fragColor.a = lightingAlpha;\n",
+        "    fragColor.rgb *= (fragColor.a + 0.0019);\n", // re-premultiply
         // PorterDuff
         "    fragColor = blendColors(colorBlend, fragColor);\n"
 };
+
+// Note: LTRB -> xyzw
+const char* gFS_Main_FragColor_HasRoundRectClip =
+        "    mediump vec2 fragToLT = roundRectInnerRectLTRB.xy - roundRectPos;\n"
+        "    mediump vec2 fragFromRB = roundRectPos - roundRectInnerRectLTRB.zw;\n"
+
+        // divide + multiply by 128 to avoid falling out of range in length() function
+        "    mediump vec2 dist = max(max(fragToLT, fragFromRB), vec2(0.0, 0.0)) / 128.0;\n"
+        "    mediump float linearDist = roundRectRadius - (length(dist) * 128.0);\n"
+        "    gl_FragColor *= clamp(linearDist, 0.0, 1.0);\n";
+
 const char* gFS_Main_DebugHighlight =
         "    gl_FragColor.rgb = vec3(0.0, gl_FragColor.a, 0.0);\n";
 const char* gFS_Main_EmulateStencil =
@@ -452,8 +472,8 @@ String8 ProgramCache::generateVertexShader(const ProgramDescription& description
     if (description.hasTexture || description.hasExternalTexture) {
         shader.append(gVS_Header_Attributes_TexCoords);
     }
-    if (description.isAA) {
-        shader.append(gVS_Header_Attributes_AAVertexShapeParameters);
+    if (description.hasVertexAlpha) {
+        shader.append(gVS_Header_Attributes_VertexAlphaParameters);
     }
     if (description.hasColors) {
         shader.append(gVS_Header_Attributes_Colors);
@@ -469,12 +489,15 @@ String8 ProgramCache::generateVertexShader(const ProgramDescription& description
     if (description.hasBitmap) {
         shader.append(gVS_Header_Uniforms_HasBitmap);
     }
+    if (description.hasRoundRectClip) {
+        shader.append(gVS_Header_Uniforms_HasRoundRectClip);
+    }
     // Varyings
     if (description.hasTexture || description.hasExternalTexture) {
         shader.append(gVS_Header_Varyings_HasTexture);
     }
-    if (description.isAA) {
-        shader.append(gVS_Header_Varyings_IsAAVertexShape);
+    if (description.hasVertexAlpha) {
+        shader.append(gVS_Header_Varyings_HasVertexAlpha);
     }
     if (description.hasColors) {
         shader.append(gVS_Header_Varyings_HasColors);
@@ -485,6 +508,9 @@ String8 ProgramCache::generateVertexShader(const ProgramDescription& description
     if (description.hasBitmap) {
         shader.append(gVS_Header_Varyings_HasBitmap);
     }
+    if (description.hasRoundRectClip) {
+        shader.append(gVS_Header_Varyings_HasRoundRectClip);
+    }
 
     // Begin the shader
     shader.append(gVS_Main); {
@@ -493,8 +519,8 @@ String8 ProgramCache::generateVertexShader(const ProgramDescription& description
         } else if (description.hasTexture || description.hasExternalTexture) {
             shader.append(gVS_Main_OutTexCoords);
         }
-        if (description.isAA) {
-            shader.append(gVS_Main_AAVertexShape);
+        if (description.hasVertexAlpha) {
+            shader.append(gVS_Main_VertexAlpha);
         }
         if (description.hasColors) {
             shader.append(gVS_Main_OutColors);
@@ -507,6 +533,9 @@ String8 ProgramCache::generateVertexShader(const ProgramDescription& description
         if (description.hasGradient) {
             shader.append(gVS_Main_OutGradient[gradientIndex(description)]);
         }
+        if (description.hasRoundRectClip) {
+            shader.append(gVS_Main_HasRoundRectClip);
+        }
     }
     // End the shader
     shader.append(gVS_Footer);
@@ -541,8 +570,8 @@ String8 ProgramCache::generateFragmentShader(const ProgramDescription& descripti
     if (description.hasTexture || description.hasExternalTexture) {
         shader.append(gVS_Header_Varyings_HasTexture);
     }
-    if (description.isAA) {
-        shader.append(gVS_Header_Varyings_IsAAVertexShape);
+    if (description.hasVertexAlpha) {
+        shader.append(gVS_Header_Varyings_HasVertexAlpha);
     }
     if (description.hasColors) {
         shader.append(gVS_Header_Varyings_HasColors);
@@ -553,6 +582,9 @@ String8 ProgramCache::generateFragmentShader(const ProgramDescription& descripti
     if (description.hasBitmap) {
         shader.append(gVS_Header_Varyings_HasBitmap);
     }
+    if (description.hasRoundRectClip) {
+        shader.append(gVS_Header_Varyings_HasRoundRectClip);
+    }
 
     // Uniforms
     int modulateOp = MODULATE_OP_NO_MODULATE;
@@ -575,11 +607,18 @@ String8 ProgramCache::generateFragmentShader(const ProgramDescription& descripti
     if (description.hasGammaCorrection) {
         shader.append(gFS_Uniforms_Gamma);
     }
+    if (description.hasRoundRectClip) {
+        shader.append(gFS_Uniforms_HasRoundRectClip);
+    }
 
     // Optimization for common cases
-    if (!description.isAA && !blendFramebuffer && !description.hasColors &&
-            description.colorOp == ProgramDescription::kColorNone &&
-            !description.hasDebugHighlight && !description.emulateStencil) {
+    if (!description.hasVertexAlpha
+            && !blendFramebuffer
+            && !description.hasColors
+            && description.colorOp == ProgramDescription::kColorNone
+            && !description.hasDebugHighlight
+            && !description.emulateStencil
+            && !description.hasRoundRectClip) {
         bool fast = false;
 
         const bool noShader = !description.hasGradient && !description.hasBitmap;
@@ -715,8 +754,12 @@ String8 ProgramCache::generateFragmentShader(const ProgramDescription& descripti
         // Apply the color op if needed
         shader.append(gFS_Main_ApplyColorOp[description.colorOp]);
 
-        if (description.isAA) {
-            shader.append(gFS_Main_AccountForAAVertexShape);
+        if (description.hasVertexAlpha) {
+            if (description.useShadowAlphaInterp) {
+                shader.append(gFS_Main_ApplyVertexAlphaShadowInterp);
+            } else {
+                shader.append(gFS_Main_ApplyVertexAlphaLinearInterp);
+            }
         }
 
         // Output the fragment
@@ -729,6 +772,9 @@ String8 ProgramCache::generateFragmentShader(const ProgramDescription& descripti
         if (description.hasColors) {
             shader.append(gFS_Main_FragColor_HasColors);
         }
+        if (description.hasRoundRectClip) {
+            shader.append(gFS_Main_FragColor_HasRoundRectClip);
+        }
         if (description.hasDebugHighlight) {
             shader.append(gFS_Main_DebugHighlight);
         }