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[core] Fix image type of Map::renderStill

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It's a premultiplied image. This implies that we were misusing encodePNG
in most cases, as we were passing premultiplied pixels which were then
interpreted as unmultiplied. I changed encodePNG to accept premultipled
pixels, and unpremultiply in the implementations.
This commit is contained in:
John Firebaugh
2015-11-25 13:49:12 -08:00
parent ed5eb9edc1
commit 1d33790dc0
21 changed files with 70 additions and 67 deletions
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8
test/api/repeated_render.cpp
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@@ -25,8 +25,8 @@ TEST(API, RepeatedRender) {
{
map.setStyleJSON(style, "");
std::promise<UnassociatedImage> promise;
map.renderStill([&promise](std::exception_ptr, UnassociatedImage&& image) {
std::promise<PremultipliedImage> promise;
map.renderStill([&promise](std::exception_ptr, PremultipliedImage&& image) {
promise.set_value(std::move(image));
});
auto result = std::move(promise.get_future().get());
@@ -37,8 +37,8 @@ TEST(API, RepeatedRender) {
{
map.setStyleJSON(style, "TEST_DATA/suite");
std::promise<UnassociatedImage> promise;
map.renderStill([&promise](std::exception_ptr, UnassociatedImage&& image) {
std::promise<PremultipliedImage> promise;
map.renderStill([&promise](std::exception_ptr, PremultipliedImage&& image) {
promise.set_value(std::move(image));
});
auto result = std::move(promise.get_future().get());