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Use blend gate plan for canvas copy decisions

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This commit is contained in:
omigamedev
2026-06-03 18:37:58 +02:00
parent bc5b39057d
commit b576143afb
7 changed files with 73 additions and 19 deletions
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17
src/paint_renderer/compositor.cpp
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@@ -116,11 +116,22 @@ void apply_stroke_plan(CanvasBlendGatePlan& gate, const StrokeCompositePlan& str
gate.requires_render_target_blit = stroke.requires_render_target_blit;
}
void mark_shader_blend_fallback(CanvasBlendGatePlan& gate) noexcept
void mark_shader_blend_fallback(
CanvasBlendGatePlan& gate,
pp::renderer::RenderDeviceFeatures features) noexcept
{
gate.shader_blend = true;
gate.complex_blend = true;
gate.compatibility_fallback = true;
if (features.framebuffer_fetch) {
gate.path = StrokeCompositePath::framebuffer_fetch;
gate.reads_destination_color = true;
} else if (features.texture_copy || features.render_target_blit) {
gate.path = StrokeCompositePath::ping_pong_textures;
gate.requires_auxiliary_texture = true;
gate.requires_texture_copy = features.texture_copy;
gate.requires_render_target_blit = !features.texture_copy && features.render_target_blit;
}
}
}
@@ -227,7 +238,7 @@ pp::foundation::Result<CanvasBlendGatePlan> plan_canvas_blend_gate(
if (!paint_blend_mode_from_persisted_index(request.layer_blend_modes[i], layer_blend)) {
if (request.layer_blend_modes[i] != 0) {
gate.first_complex_layer_index = static_cast<int>(i);
mark_shader_blend_fallback(gate);
mark_shader_blend_fallback(gate, features);
return pp::foundation::Result<CanvasBlendGatePlan>::success(gate);
}
continue;
@@ -259,7 +270,7 @@ pp::foundation::Result<CanvasBlendGatePlan> plan_canvas_blend_gate(
if (!stroke_blend_mode_from_persisted_index(request.stroke_blend_mode, stroke_blend)) {
if (request.stroke_blend_mode != 0) {
gate.stroke_complex = true;
mark_shader_blend_fallback(gate);
mark_shader_blend_fallback(gate, features);
return pp::foundation::Result<CanvasBlendGatePlan>::success(gate);
}
} else if (stroke_blend != pp::paint::StrokeBlendMode::normal) {