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[Impeller] Use linear sampling for reads in the texture atlas (flutter/engine#35618)

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This commit is contained in:
Brandon DeRosier 2022-08-23 11:08:27 -07:00 committed by GitHub
parent 486b04e5f1
commit 6fd4e99442
1 changed files with 10 additions and 3 deletions
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13
engine/src/flutter/impeller/entity/contents/text_contents.cc
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@ -9,7 +9,9 @@
#include "impeller/entity/contents/content_context.h"
#include "impeller/entity/entity.h"
#include "impeller/geometry/path_builder.h"
#include "impeller/renderer/formats.h"
#include "impeller/renderer/render_pass.h"
#include "impeller/renderer/sampler_descriptor.h"
#include "impeller/renderer/sampler_library.h"
#include "impeller/tessellator/tessellator.h"
#include "impeller/typographer/glyph_atlas.h"
@ -93,11 +95,16 @@ bool TextContents::Render(const ContentContext& renderer,
frame_info.text_color = ToVector(color_.Premultiply());
VS::BindFrameInfo(cmd, pass.GetTransientsBuffer().EmplaceUniform(frame_info));
SamplerDescriptor sampler_desc;
sampler_desc.min_filter = MinMagFilter::kLinear;
sampler_desc.mag_filter = MinMagFilter::kLinear;
// Common fragment uniforms for all glyphs.
FS::BindGlyphAtlasSampler(
cmd, // command
atlas->GetTexture(), // texture
renderer.GetContext()->GetSamplerLibrary()->GetSampler({}) // sampler
cmd, // command
atlas->GetTexture(), // texture
renderer.GetContext()->GetSamplerLibrary()->GetSampler(
sampler_desc) // sampler
);
// Common vertex information for all glyphs.