114 lines
5.4 KiB
Diff
114 lines
5.4 KiB
Diff
diff --git a/content/renderer/renderer_blink_platform_impl.cc b/content/renderer/renderer_blink_platform_impl.cc
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index 4205c92765af..c82360f146d1 100644
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--- a/content/renderer/renderer_blink_platform_impl.cc
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+++ b/content/renderer/renderer_blink_platform_impl.cc
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@@ -1021,8 +1021,10 @@ RendererBlinkPlatformImpl::CreateOffscreenGraphicsContext3DProvider(
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attributes.sample_buffers = 0;
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attributes.bind_generates_resource = false;
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attributes.enable_raster_interface = web_attributes.enable_raster_interface;
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- // Prefer discrete GPU for WebGL.
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- attributes.gpu_preference = gl::PreferDiscreteGpu;
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+
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+ attributes.gpu_preference = web_attributes.prefer_integrated_gpu
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+ ? gl::PreferIntegratedGpu
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+ : gl::PreferDiscreteGpu;
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attributes.fail_if_major_perf_caveat =
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web_attributes.fail_if_major_performance_caveat;
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diff --git a/third_party/blink/public/platform/platform.h b/third_party/blink/public/platform/platform.h
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index f3ec52975650..920d161a1b81 100644
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--- a/third_party/blink/public/platform/platform.h
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+++ b/third_party/blink/public/platform/platform.h
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@@ -493,6 +493,7 @@ class BLINK_PLATFORM_EXPORT Platform {
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kGLES3ContextType, // GLES 3.0 context
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};
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struct ContextAttributes {
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+ bool prefer_integrated_gpu = false;
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bool fail_if_major_performance_caveat = false;
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ContextType context_type = kGLES2ContextType;
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// Offscreen contexts usually share a surface for the default frame buffer
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diff --git a/third_party/blink/renderer/core/html/canvas/canvas_context_creation_attributes_core.h b/third_party/blink/renderer/core/html/canvas/canvas_context_creation_attributes_core.h
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index 298e186289a0..5223ae30db6b 100644
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--- a/third_party/blink/renderer/core/html/canvas/canvas_context_creation_attributes_core.h
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+++ b/third_party/blink/renderer/core/html/canvas/canvas_context_creation_attributes_core.h
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@@ -30,6 +30,7 @@ class CORE_EXPORT CanvasContextCreationAttributesCore {
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String pixel_format = "8-8-8-8";
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bool premultiplied_alpha = true;
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bool preserve_drawing_buffer = false;
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+ String power_preference = "default";
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bool stencil = false;
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// This attribute is of type XRDevice, defined in modules/xr/XRDevice.h
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diff --git a/third_party/blink/renderer/modules/canvas/htmlcanvas/canvas_context_creation_attributes_module.idl b/third_party/blink/renderer/modules/canvas/htmlcanvas/canvas_context_creation_attributes_module.idl
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index 7b655dd12a77..8969eb7d98f3 100644
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--- a/third_party/blink/renderer/modules/canvas/htmlcanvas/canvas_context_creation_attributes_module.idl
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+++ b/third_party/blink/renderer/modules/canvas/htmlcanvas/canvas_context_creation_attributes_module.idl
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@@ -28,6 +28,12 @@ enum CanvasPixelFormat {
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"float16",
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};
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+enum CanvasPowerPreference {
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+ "default",
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+ "low-power",
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+ "high-performance",
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+};
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+
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[PermissiveDictionaryConversion]
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dictionary CanvasContextCreationAttributesModule {
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// This is an experimental feature, but it is not hidden behind a flag in
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@@ -47,6 +53,7 @@ dictionary CanvasContextCreationAttributesModule {
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boolean antialias = true;
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boolean premultipliedAlpha = true;
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boolean preserveDrawingBuffer = false;
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+ CanvasPowerPreference powerPreference = "default";
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boolean failIfMajorPerformanceCaveat = false;
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[OriginTrialEnabled=WebXR] XRDevice compatibleXRDevice = null;
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};
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diff --git a/third_party/blink/renderer/modules/webgl/webgl_context_attribute_helpers.cc b/third_party/blink/renderer/modules/webgl/webgl_context_attribute_helpers.cc
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index 7274af57b8ee..2a2737da1a56 100644
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--- a/third_party/blink/renderer/modules/webgl/webgl_context_attribute_helpers.cc
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+++ b/third_party/blink/renderer/modules/webgl/webgl_context_attribute_helpers.cc
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@@ -18,6 +18,7 @@ WebGLContextAttributes ToWebGLContextAttributes(
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result.setAntialias(attrs.antialias);
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result.setPremultipliedAlpha(attrs.premultiplied_alpha);
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result.setPreserveDrawingBuffer(attrs.preserve_drawing_buffer);
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+ result.setPowerPreference(attrs.power_preference);
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result.setFailIfMajorPerformanceCaveat(
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attrs.fail_if_major_performance_caveat);
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result.setCompatibleXRDevice(
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@@ -30,6 +31,7 @@ Platform::ContextAttributes ToPlatformContextAttributes(
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unsigned web_gl_version,
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bool support_own_offscreen_surface) {
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Platform::ContextAttributes result;
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+ result.prefer_integrated_gpu = attrs.power_preference == "low-power";
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result.fail_if_major_performance_caveat =
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attrs.fail_if_major_performance_caveat;
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result.context_type = web_gl_version == 2 ? Platform::kWebGL2ContextType
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diff --git a/third_party/blink/renderer/modules/webgl/webgl_context_attributes.idl b/third_party/blink/renderer/modules/webgl/webgl_context_attributes.idl
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index 38ca0f6b6a0c..90cfe8497daf 100644
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--- a/third_party/blink/renderer/modules/webgl/webgl_context_attributes.idl
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+++ b/third_party/blink/renderer/modules/webgl/webgl_context_attributes.idl
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@@ -26,6 +26,12 @@
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.2
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+enum WebGLPowerPreference {
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+ "default",
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+ "low-power",
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+ "high-performance",
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+};
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+
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dictionary WebGLContextAttributes {
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boolean alpha = true;
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boolean depth = true;
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@@ -33,6 +39,7 @@ dictionary WebGLContextAttributes {
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boolean antialias = true;
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boolean premultipliedAlpha = true;
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boolean preserveDrawingBuffer = false;
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+ WebGLPowerPreference powerPreference = "default";
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boolean failIfMajorPerformanceCaveat = false;
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[OriginTrialEnabled=WebXR] XRDevice compatibleXRDevice = null;
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};
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--
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2.17.0
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